Edgar Filing: CHARLES RIVER LABORATORIES INTERNATIONAL INC

Document

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

____________________________________________

FORM 10-K



(Mark One)
ý	ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE FISCAL YEAR ENDED DECEMBER 29, 2018
OR
o	TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
FOR THE TRANSITION PERIOD FROM TO

Commission File No. 001-15943

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

(Exact Name of Registrant as Specified in Its Charter)



Delaware		06-1397316
(State or Other Jurisdiction of Incorporation or Organization)		(I.R.S. Employer Identification No.)
251 Ballardvale Street Wilmington, Massachusetts		01887
(Address of Principal Executive Offices)		(Zip Code)

____________________________________________________________________________

(Registrant’s telephone number, including area code): (781) 222-6000

Securities registered pursuant to Section 12(b) of the Act:



Title of each class		Name of each exchange on which registered
Common Stock, $0.01 par value		New York Stock Exchange

Securities registered pursuant to Section 12(g) of the Act: None

Indicate by check mark whether the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes ý No o

Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes o No ý

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ý No o

Indicate by check mark whether the registrant has submitted electronically every Interactive Data File required to be submitted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit such files.) Yes ý No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the Registrant’s knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ý

Indicate by check mark whether the Registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”, “smaller reporting company”, and “emerging growth company” in Rule 12b-2 of the Exchange Act.



Large accelerated filer ý	Accelerated filer o	Non-accelerated filer o
Smaller reporting company o	Emerging growth company o

If an emerging growth company, indicate by a check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. o

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o No ý

On June 30, 2018, the aggregate market value of the Registrant’s voting common stock held by non-affiliates of the Registrant was approximately $5,286,825,427. As of January 25, 2019, there were 48,226,323 shares of the Registrant’s common stock outstanding, $0.01 par value per share.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant’s definitive Proxy Statement for its 2019 Annual Meeting of Shareholders scheduled to be held on May 21, 2019, which will be filed with the Securities and Exchange Commission (SEC) not later than 120 days after December 29, 2018, are incorporated by reference into Part III of this Annual Report on Form 10-K. With the exception of the portions of the 2019 Proxy Statement expressly incorporated into this Annual Report on Form 10-K by reference, such document shall not be deemed filed as part of this Form 10-K.

CHARLES RIVER LABORATORIES INTERNATIONAL, INC.

ANNUAL REPORT ON FORM 10-K

FOR FISCAL YEAR 2018

TABLE OF CONTENTS



Item		Page
	PART I
1	Business	1
1A	Risk Factors	15
1B	Unresolved Staff Comments	26
2	Properties	26
3	Legal Proceedings	26
4	Mine Safety Disclosures	27
	PART II
5	Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities	27
6	Selected Consolidated Financial Data	29
7	Management's Discussion and Analysis of Financial Condition and Results of Operations	30
7A	Quantitative and Qualitative Disclosures about Market Risk	46
8	Financial Statements and Supplementary Data	48
9	Changes in and Disagreements with Accountants on Accounting and Financial Disclosure	103
9A	Controls and Procedures	103
9B	Other Information	103
	PART III
10	Directors, Executive Officers and Corporate Governance	104
11	Executive Compensation	104
12	Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters	104
13	Certain Relationships and Related Transactions, and Director Independence	104
14	Principal Accountant Fees and Services	104
	PART IV
15	Exhibits and Financial Statement Schedules	105
16	Form 10-K Summary	105

Signatures		106
Exhibit Index		107

PART I

Item 1. Business

General

This Annual Report on Form 10-K contains forward-looking statements regarding future events and the future results of Charles River Laboratories International, Inc. that are based on our current expectations, estimates, forecasts and projections about the industries in which we operate and the beliefs and assumptions of our management. Words such as “expect,” “anticipate,” “target,” “goal,” “project,” “intend,” “plan,” “believe,” “seek,” “estimate,” “will,” “likely,” “may,” “designed,” “would,” “future,” “can,” “could” and other similar expressions that are predictions, indicate future events and trends or which do not relate to historical matters are intended to identify such forward-looking statements. These statements are based on our current expectations and beliefs and involve a number of risks, uncertainties and assumptions that are difficult to predict. For example, we may use forward-looking statements when addressing topics such as: goodwill and asset impairments still under review; future demand for drug discovery and development products and services, including the outsourcing of these services; our expectations regarding stock repurchases, including the number of shares to be repurchased, expected timing and duration, the amount of capital that may be expended and the treatment of repurchased shares; present spending trends and other cost reduction activities by our clients; future actions by our management; the outcome of contingencies; changes in our business strategy, business practices and methods of generating revenue; the development and performance of our services and products; market and industry conditions, including competitive and pricing trends; our strategic relationships with leading pharmaceutical companies and venture capital limited partnerships, and opportunities for future similar arrangements; our cost structure; the impact of completed and in-process acquisitions (including Argenta, BioFocus, VivoPath, ChanTest, Sunrise, Celsis, Oncotest, WIL Research, Blue Stream, Agilux, Brains On-Line, KWS BioTest, MPI Research, and Citoxlab) and the timing of closing of in-process acquisitions; our expectations with respect to revenue growth and operating synergies (including the impact of specific actions intended to cause related improvements); the impact of specific actions intended to improve overall operating efficiencies and profitability (and our ability to accommodate future demand with our infrastructure), including gains and losses attributable to businesses we plan to close, consolidate or divest; changes in our expectations regarding future stock option, restricted stock, performance share units and other equity grants to employees and directors; expectations with respect to foreign currency exchange; assessing (or changing our assessment of) our tax positions for financial statement purposes; and our liquidity. In addition, these statements include the impact of economic and market conditions on us and our clients; the effects of our cost-saving actions and the steps to optimize returns to shareholders on an effective and timely basis.

You should not rely on forward-looking statements because they are predictions and are subject to risks, uncertainties and assumptions that are difficult to predict. Therefore, actual results may differ materially and adversely from those expressed in any forward-looking statements. You are cautioned not to place undue reliance on these forward-looking statements, which speak only as of the date of this document or in the case of statements incorporated by reference, on the date of the document incorporated by reference. Factors that might cause or contribute to such differences include, but are not limited to, those discussed in this Form 10-K under the sections entitled “Our Strategy,” “Risk Factors,” "Management's Discussion and Analysis of Financial Condition and Results of Operations,” in our press releases and other financial filings with the SEC. We have no obligation to publicly update or revise any forward-looking statements, whether as a result of new information, future events or risks. New information, future events or risks may cause the forward-looking events we discuss in this report not to occur.

Corporate History

We began operating in 1947 and since then, we have undergone several changes to our business structure. Charles River Laboratories International, Inc. was incorporated in 1994 and in 2000 we completed our initial public offering. Our stock is traded on the New York Stock Exchange under the symbol “CRL” and is included in the Standard & Poor's MidCap 400, 1000 and Composite 1500 indices, the Dow Jones U.S. Health Care Index, the NYSE Arca Biotechnology Index, the NYSE Composite, and many of the Russell indices, among others. We are headquartered in Wilmington, Massachusetts. Our headquarters mailing address is 251 Ballardvale Street, Wilmington, MA, 01887, and the telephone number at that location is (781) 222-6000. Our Internet site is www.criver.com. Material contained on our Internet site is not incorporated by reference into this Form 10-K. Unless the context otherwise requires, references in this Form 10-K to “Charles River,” “we,” “us” “the Company” or “our” refer to Charles River Laboratories International, Inc. and its subsidiaries.

This Form 10-K, as well as all other reports filed with the SEC, is available free of charge through the Investor Relations section of our Internet site (www.criver.com) as soon as practicable after we electronically file such material with, or furnish it

to, the SEC. The SEC maintains an Internet site (http://www.sec.gov) that contains reports, proxy and information statements, and other information regarding issuers that file electronically with the SEC.

Overview

We are a full service, early-stage contract research organization (CRO). We have built upon our core competency of laboratory animal medicine and science (research model technologies) to develop a diverse portfolio of discovery and safety assessment services, both Good Laboratory Practice (GLP) and non-GLP, which is able to support our clients from target identification through non-clinical development. We also provide a suite of products and services to support our clients’ manufacturing activities. Utilizing our broad portfolio of products and services enables our clients to create a more flexible drug development model, which reduces their costs, enhances their productivity and effectiveness, and increases speed to market.

Discovery represents the earliest stages of research in the life sciences, directed at the identification, screening, and selection of a lead molecule for future drug development. Discovery activities typically extend anywhere from 4 to 6 years in conventional pharmaceutical research and development timelines.

Development activities, which follow, and which can take up to 7 to 10 years, are directed at demonstrating the safety, tolerability, and clinical efficacy of the selected drug candidates. During the non-clinical stage of the development process, a drug candidate is tested in vitro (non-animal, typically on a cellular or sub-cellular level in a test tube or multi-well petri plate) and in vivo (in research models) to support human clinical trials.

The development of new drugs requires a steadily increasing investment of time and money. Various studies and reports estimate that it takes between 10 to 15 years, up to $2.0 billion excluding time costs, and exploration of between 10,000 and 15,000 drug molecules to produce a single Food and Drug Administration (FDA)-approved drug. We are positioned to leverage our leading portfolio in early-stage drug research in an efficient and cost-effective way to aid our clients in bringing their drugs to market faster.

For over 70 years, we have been in the business of providing the research models required in research and development of new drugs, devices, and therapies. Over this time, we have built upon our core competency of in vivo biology to develop a diverse and expanding portfolio of products and services, which now encompasses the broader early-stage drug research process. Our client base includes global pharmaceutical companies, biotechnology companies, government agencies, and hospitals and academic institutions around the world. We currently operate in over 80 facilities and in approximately 20 countries worldwide, which numbers exclude our Insourcing Solutions (IS) sites. Our products and services, supported by our global infrastructure and deep scientific expertise, enable our clients to overcome many of the challenges of early-stage life sciences research. In 2018, our total revenue was $2.3 billion and our operating income from continuing operations, before income taxes, was $281.7 million.

We have three reporting segments: Research Models and Services (RMS), Discovery and Safety Assessment (DSA), and Manufacturing Support (Manufacturing).

Through our RMS segment, we have been supplying research models to the drug development industry since 1947. With over 150 different strains, we continue to maintain our position as a global leader in the production and sale of the most widely used rodent research model strains and purpose-bred rats and mice. We also provide a variety of related services that are designed to assist our clients in supporting the use of research models in drug discovery and development. We maintain multiple production centers, including barrier rooms and/or isolator facilities, on three continents (North America, Europe, and Asia). In 2018, RMS accounted for 22.9% of our total revenue and approximately 3,600 of our employees, including approximately 130 science professionals with advanced degrees.

Our DSA business segment provides services that enable our clients to outsource their innovative drug discovery research, their related drug development activities, and their regulatory-required safety testing of potential new drugs, industrial and agricultural chemicals and medical devices to us. The demand for these services is driven by the needs of large global pharmaceutical companies that have exceeded their internal capacity or that are, or who are transitioning, to an outsourcing model of drug development, as well as by the needs of small biotechnology companies and non-governmental organizations who rely on outsourcing for most of their discovery, development and safety testing programs. Global pharmaceutical, biotechnology, and chemical companies choose to outsource their discovery, development, and safety activities because outsourcing reduces the significant investment in personnel, facilities and capital resources necessary to efficiently and effectively conduct required scientific studies. Additionally, outsourcing to Charles River provides companies access to scientific expertise that they may not have internally or otherwise available to them.

We are the largest provider of drug discovery, non-clinical development, and safety testing services worldwide and offer a comprehensive portfolio of services required for the development and regulatory submission of pharmaceuticals and industrial and agricultural chemicals. We have extensive expertise in the discovery of clinical candidates and in the design, execution, and reporting of safety assessment studies for numerous types of compounds including small and large molecule pharmaceuticals, industrial and agricultural chemicals, biocides and medical devices. We currently provide discovery and safety assessment services at multiple facilities located in the United States (U.S.), Canada, and Europe. Our DSA segment represented 58.1% of our total revenue in 2018 and employed approximately 8,800 of our employees including approximately 1,300 science professionals with advanced degrees.

Through our Manufacturing segment, we help ensure the safe production and release of products manufactured by our clients. Our Microbial Solutions business provides in vitro methods for conventional and rapid quality control testing of sterile and non-sterile pharmaceuticals and consumer products. Our Biologics Testing Solutions business provides specialized testing of biologics frequently outsourced by global pharmaceutical and biotechnology companies. Our Avian Vaccine Services business provides specific-pathogen-free (SPF) fertile chicken eggs, SPF chickens and diagnostic products used to manufacture vaccines.

In 2018, Manufacturing accounted for 19.0% of our total revenue from continuing operations and approximately 1,800 of our employees, including approximately 140 science professionals with advanced degrees.

In recent years, we have focused our efforts on improving the efficiency of our global operations to enhance our ability to support our clients. Our pharmaceutical and biotechnology clients are increasingly seeking full service, “one-stop” global partners to whom they can outsource more of their drug discovery and development efforts. It is estimated that the market for regulated safety assessment services is at least 50% outsourced, while emerging growth areas such as discovery and certain research model services are currently believed to be less outsourced.

Research Models and Services (RMS). Our RMS segment is comprised of (1) Research Models and (2) Research Model Services.

Research Models. Our Research Models business is comprised of the production and sale of research models.

Research Models. A significant portion of this business involves the commercial production and sale of research models, principally purpose-bred rats and mice for use by researchers. We provide our rodent models to numerous clients around the world, including most pharmaceutical companies, a broad range of biotechnology companies, and many government agencies, hospitals, and academic institutions. We have a global footprint with production facilities strategically located in 8 countries, in close proximity to our clients. Our research models include standard stocks and strains and disease models such as those with compromised immune systems, which are in demand as early-stage research tools. The FDA and foreign regulatory agencies typically require that the safety and efficacy of new drug candidates be tested on research models like ours prior to testing in humans. As a result, our research models are an essential part of the drug discovery and development process.

Our rodent species have been, and continue to be, some of the most extensively used research models in the world, largely as a result of our geographic footprint and continuous commitment to innovation and quality. Our research models are bred and maintained in controlled environments, which are designed to ensure that the models are free of specific viral and bacterial agents and other contaminants that can disrupt research operations and distort research results. With our production capabilities, we are able to deliver consistently high-quality research models worldwide.

Our research models include:


•	inbred, which are bred to be homogeneous;


•	outbred, which are purposefully bred for heterogeneity;


•	hybrid, which are the offspring of two different inbred parents;


•	spontaneous mutant, whose genotype results in a naturally occurring genetic mutation (such as immune deficiency); and


•	other genetically modified research models, such as knock-out models with one or more disabled genes and transgenic models.

Certain of our research models are proprietary rodent models used to research treatments for diseases such as diabetes, obesity, cardiovascular, cancer, central nervous system (CNS) and kidney disease.

We are also a premier provider of high quality, purpose bred, SPF large research models to the biomedical research community.

Research Model Services. RMS also offers a variety of services designed to support our clients' use of research models in basic research and screening non-clinical drug candidates. These services address the need among pharmaceutical and biotechnology companies to outsource the non-core aspects of their drug discovery activities. Our services include those which are related to the maintenance and monitoring of research models, and managing research operations for government entities, academic organizations, and commercial clients. We currently have three service offerings in research models services: Genetically Engineered Models and Services, Insourcing Solutions, and Research Animal Diagnostic Services.

Genetically Engineered Models and Services (GEMS). We create, breed and maintain research models required by our clients for biomedical research activities. The creation of a genetically engineered model (GEM) is a critical scientific event, but it is only the first step in the discovery process, and our scientists can advise clients on how to efficiently create custom models utilizing in-licensed technologies and approaches to modify the genome. Through our phenotyping platforms we can also design and conduct the relevant studies and tests allowing characterization of the generated models. Productive utilization of GEMs requires significant additional technical expertise in order to properly support basic and early discovery research. We provide breeding expertise and colony development, quarantine, health and genetic testing and monitoring, germplasm cryopreservation, and rederivation including assisted reproduction and model creation. Our team of project managers is supported by a technologically advanced Internet Colony Management (ICM™) system that allows for real-time data exchange. We provide these services to clients around the world, including pharmaceutical and biotechnology companies, hospitals, universities, and government agencies.

Insourcing Solutions (IS). We manage research operations (including recruitment, training, staffing and management services) in our clients’ facilities or in custom-designed facilities in which we lease space to government entities, academic organizations, and commercial clients. Some research institutions prefer to retain certain elements of their research in-house, while outsourcing staffing and management, thus driving demand for our services. We believe that our expertise in early-stage drug research, and in particular research model care, scientific and technical support, facility operations, and discovery and development services, enhances the productivity and quality of our clients' research programs.

Research Animal Diagnostic Services (RADS). We monitor and analyze the health profiles of our clients’ research models and research biologics by providing infectious agents and pathology assessment. We developed this capability internally in order to address the quality control of our research model business. We are able to serve as our clients’ sole-source testing laboratory, or as an alternative source supporting our clients’ internal laboratory capabilities. We believe we are the reference laboratory of choice for health assessment of laboratory research models and an industry leader in the field of laboratory animal diagnostics.

Discovery and Safety Assessment (DSA)

We currently offer discovery and safety assessment services, both regulated and non-regulated, in which we include both in vitro and in vivo studies, supporting laboratory services, and strategic non-clinical consulting and program management to support product development.

Discovery Services. We offer a full spectrum of discovery services from identification of a novel druggable target, followed by high-throughput screening and medicinal chemistry, through delivery of non-clinical drug and therapeutic candidates ready for safety assessment. Our Early Discovery, In Vitro and In Vivo Discovery businesses are integrated into a single business line - Discovery Services - as evidence of our efforts to streamline and enhance the support we can provide for clients’ integrated drug discovery programs from target identification to a therapeutic candidate before progressing into safety assessment process. One seamless discovery organization also allows us to better engage with clients at any stage of their drug discovery and support their complex scientific needs. We support a variety of therapeutic areas including oncology, CNS, immunology, bone and musculoskeletal, inflammation, metabolic diseases, respiratory and fibrotic diseases, cardiovascular, gastrointestinal, genito-urinary, anti-infectives, and ophthalmology. We also provide expertise in the growing area of rare and orphan diseases, which are typically diseases of high unmet medical need in smaller patient populations, such as myotonic dystrophy, cystic fibrosis, and Huntington’s Disease. We believe there are emerging opportunities to assist our clients in a variety of drug discovery applications and platforms from target discovery to candidate selection and across a range of modalities including small molecules, antibody and gene therapy.

Early Discovery. We are a global leader in integrated drug discovery services, with a predominant focus on in vitro biology and medicinal chemistry capabilities. Our knowledge and expertise allow us to support our clients as they drive their molecules forward through design and implementation of clear program plans. Our full suite of service offerings allows us to support our clients at the earliest stages of their research, and to stay with them through the entire drug discovery process. Our Early Discovery service capabilities include:


•	target discovery and validation;


•	hit identification and optimization to deliver candidate molecules; and


•	target engagement biomarker development to support pre-clinical and potentially downstream clinical studies.

We also offer ion channel testing for both discovery and pre-clinical purposes. Our genome editing capabilities enable us to develop more translationally relevant research models designed to enhance scientific understanding and improve the efficiency and effectiveness of the drug discovery process. These services extend from the early discovery screening process through to in vitro GLP safety assessment testing. In addition, we also provide many of these services at our clients’ laboratories with Charles River scientists as part of an in-sourcing service model. In October 2018, we entered into an exclusive partnership with Distributed Bio, Inc., a leader in the computational design and optimization of antibody platforms. This partnership will enable our clients to access Distributed Bio’s extensive antibody libraries and integrated antibody optimization technologies. The combination of Distributed Bio’s antibody libraries with our extensive biologics development expertise creates a unique end-to-end platform for therapeutic antibody discovery and development.

In Vivo Discovery Services. In Vivo Discovery Services are essential in early stage, non-clinical discovery research, directed at the identification, screening, optimization and selection of a candidate compounds for drug development. These in vivo activities typically extend anywhere from 2 to 4 years in conventional pharmaceutical research and development timelines. We offer research and development expertise, capabilities, and services globally to accelerate our clients' drug discovery pipelines from lead generation to candidate selection and on occasion, complete in vivo studies in support of clinical efforts or post-marketing work. We complement and extend clients' capabilities and expertise to improve their decision-making, increase their flexibility, and reduce their internal costs and product development timelines. In addition, we provide in vitro assays in support of lead optimization to candidate selection activities. Examples of this include early pharmacokinetic and pharmacodynamic studies and in vitro and in vivo assays to assess mechanism, bioavailability, metabolism, efficacy, pharmacology and safety.

In recent years we have made key acquisitions designed to augment our In Vivo Discovery Services offerings. In August 2017, we acquired Brains On-Line (BOL), a leading CRO that provides critical data that advances novel therapeutics for the treatment of CNS diseases. In January 2018, we acquired KWS BioTest (KWS), a leading CRO specializing in in vitro and in vivo discovery testing services for immuno-oncology and inflammatory and infectious diseases. Through partnerships, we are also expanding towards the integrated discovery and pre-clinical development of therapeutic antibodies.

Safety Assessment. We offer a full range of safety assessment studies required for regulatory submission on a global basis.

Bioanalysis, Drug Metabolism and Pharmacokinetics. In support of non-clinical drug safety testing, our clients are required to demonstrate appropriate stability in the collected biological sample, pharmacokinetics of their drug or compound in circulation, the presence of metabolites, and, with biologics, the presence or absence of anti-drug antibodies. We have scientific depth in the sophisticated bioanalytical techniques required to satisfy these requirements for a number of drug classes. Once the analysis is complete, our scientists evaluate the data to provide information on the pharmacokinetics and/or toxicokinetics of the drug, and complete an evaluation of the biologic disposition of the drug and its potential metabolites. Pharmacokinetics refers to the understanding of what the body does to a drug or compound administered at therapeutic dose levels, including the process by which the drug is absorbed, distributed in the body, metabolized and excreted. Toxicokinetics refers to the same understanding as applied at higher doses that may result in adverse effects. These studies are required for the full non-clinical assessment of the disposition of the drug and the results are used in the final non-clinical safety evaluation of the compound to support the start of clinical trials. After performing sample analysis in support of non-clinical studies, we also have the capabilities to support the clinical bioanalysis required in clinical trials.

Safety Pharmacology. Our clients are also required to conduct an assessment of Safety Pharmacology. This suite of studies is used to determine any effects on the vital organ systems of the body - cardiovascular, respiratory and CNS. Along with heart rate and blood pressure measurements, the cardiovascular assessment will also assess if the test article has the potential to inhibit the cardiac ion channel and prolong the cardiac QT interval of the electrocardiogram. Additionally, effects on the CNS and respiratory systems are assessed to complete the battery of studies to evaluate the vital organ systems of the body. Supplemental studies can also be performed to assess the renal, gastrointestinal, and autonomic nervous systems, as well as, dependency potential. We have assays (both in vitro and in vivo) and can perform the screening prior to the commencement of first-in-human clinical trials. Our capabilities can also be used to investigate the mode of action behind an adverse effect found in a safety assessment study.

Toxicology. We have expertise in the design and execution of development programs in support of essentially all modalities of chemically-derived and biotechnology-derived pharmaceuticals. We also support safety studies to test industrial chemical, agrochemicals and medical devices. For human pharmaceutical candidates, once a lead molecule is selected, toxicology studies are required to support clinical trials in humans and for new drug registration. These toxicology studies focus on assessing the safety of the potential therapeutic to determine if administration to humans might cause any unintended harmful effects. For new chemicals, industrial chemicals, agrochemicals and medical devices, safety studies are performed to identify potential hazards to humans and the environment and are required for regulatory registration. Toxicology studies performed for any of these compounds are typically performed using in vitro and in vivo research models to identify any potential adverse effects that a compound has on an organism over a variety of doses and over various time periods of exposure.

Our toxicology services feature:


•	a broad offering of in vitro and in vivo capabilities and study types designed to identify possible safety risks;


•	a broad offering of in vitro and in vivo studies in support of general toxicology (acute, sub-acute, and chronic studies), genetic toxicology, safety pharmacology, and carcinogenicity bioassays that are required for regulatory submissions supporting “first-in-human” to “first-to-the-market” strategies for potential human therapeutics;


•	a broad offering of in vitro and in vivo studies in support of general toxicology (acute, sub-acute, and chronic studies), genetic toxicology, reproductive and developmental toxicology, environmental toxicology, and carcinogenicity bioassays that are required for regulatory submissions supporting the registration of industrial chemicals, agrochemicals, and biocides;


•	expertise in standard and specialty routes of administration (e.g., infusion, intravitreal, intrathecal, and inhalation) that are important not only for the testing of potential pharmaceuticals and biopharmaceuticals, but also for the safety testing of medical devices, nutraceuticals, animal health products, and other materials;


•	expertise in the conduct and assessment of reproductive, developmental, and juvenile toxicology studies (in support of larger-scale and later-stage human clinical trials or chemical registration);


•	expertise in environmental toxicology (aquatic and terrestrial) and regulatory submissions required for chemical and agrochemical registration;


•	services in important specialty areas such as ocular, bone, juvenile/neonatal, immune-toxicology, ototoxicology, photobiology, inhalation, drug abuse liability, surgery, imaging capabilities and dermal testing;


•	expertise in determining the potential for abuse of human pharmaceuticals (Drug Abuse Liability Testing);


•	expertise in testing of medical devices in the assessment of those devices and surrounding tissues;


•	expertise and experience and expertise in immunology and immunotoxicology;


•	expertise in all major therapeutic areas, particularly in stem and gene therapy, and orphan drugs;


•	study design and strategic advice to our clients based on our wealth of experience and scientific expertise in support of drug development and chemical registration; and


•	a strong history of assisting our clients in achieving their regulatory and/or internal milestones for the safety testing of numerous therapy types including stem cells, vaccines, proteins, antibodies, drug conjugates, oligonucleotide biotherapeutics, small molecules, medical devices, chemicals, and agrochemicals.

Our safety assessment facilities comply with GLP to the extent required by the FDA, Environmental Protection Agency, USDA, European Medicines Agency, European Chemicals Agency, Organization for Economic Co-operation and Development (OECD), as well as other international regulatory agencies. Furthermore, our early-stage discovery work, which is not subject to GLP standards, is typically carried out under a quality management system such as ISO 9100 or similarly constructed internally developed quality systems. Our facilities are regularly inspected by U.S. and other regulatory compliance monitoring authorities, our clients' quality assurance departments, and our own internal quality assessment program.

Pathology Services. The ability to identify and characterize clinical and anatomic pathologic changes is critical in determining the safety and efficacy of potential new therapeutics, industrial and agriculture chemicals and medical devices. Key “go/no-go” decisions regarding continued product development are typically dependent on the identification, characterization and evaluation of fluid, tissue, and cellular changes that our experts identify and interpret for our clients. We employ a large number of highly trained veterinary anatomic and clinical pathologists and other scientists who use state-of-the-art techniques to

identify potential test compound-related changes. In addition to all standard anatomic and clinical pathology techniques, we provide specialized evaluations such as cytology, platelet function, assay development, immunohistochemistry, in situ hybridization, electron microscopy, image analysis, tissue morphometry, and stereology services.

In April 2018, we acquired MPI Research (MPI), a premier non-clinical contract research organization providing comprehensive testing services to biopharmaceutical and medical device companies worldwide. Acquiring MPI enhanced our position as a leading global early-stage CRO by strengthening our ability to partner with clients across the drug discovery and development continuum. The MPI business we acquired reports through our Discovery and Safety Assessment segment.

Manufacturing Support (Manufacturing)

Microbial Solutions. Our Microbial Solutions business provides in vitro methods for conventional and rapid quality control testing of sterile and non-sterile biopharmaceutical and consumer products. Our legacy Endosafe business provides lot release testing of medical devices and injectable drugs for endotoxin contamination. Our Celsis business provides rapid microbial detection systems for quality control testing in the pharmaceutical and consumer products industries. Our Accugenix business provides state-of-the-art microbial identification and genetic sequencing services for manufacturing in the biopharmaceutical, medical device, nutraceutical, and consumer care industries.

Endotoxin testing is an in vitro process which uses a processed extract from the raw materials of the horseshoe crab, known as limulus amebocyte lysate (LAL). The LAL test is the first and most successful FDA-validated alternative to an in vivo test to date. The extraction of the raw materials for LAL does not harm the crabs, which are subsequently returned to their natural ocean environment. Our Microbial Solutions business produces and distributes a comprehensive portfolio of endotoxin testing, microbial detection and identification kits, reagents, software, accessories, instruments, and associated microbial quality control laboratory services to a broad range of companies manufacturing and releasing products from the pharmaceutical, biotechnology and consumer products industries, including the dairy, food and beverage markets through our strategic partnership with Hygiena. We are a market leader in endotoxin testing products and services, which are used for FDA-required quality control testing of injectable drugs and medical devices, their components, and the processes by which they are manufactured.

The growth in our Microbial Solutions business is driven by our FDA-approved line of next-generation endotoxin testing products. This line is based on the Endosafe Portable Testing System (Endosafe^®-PTS™) technology, which allows rapid endotoxin testing in the central laboratory or manufacturing environment. In recent years, we expanded the PTS product portfolio to include a multiple sample testing system known as the Endosafe®-MCS™ (multi-cartridge system) and the first fully automated robotic system developed specifically for high-volume endotoxin testing, Endosafe®-Nexus, to satisfy the demand of our clients who require higher sample throughput. We have seen expanded use of this rapid endotoxin testing technology as clients transition from traditional methods to our rapid cartridge technology.

Celsis’ systems are principally used for product-release testing to help ensure the safe manufacture of pharmaceutical and consumer products. The Celsis Advance II™ and Celsis Accel™ systems for rapid microbial detection applications complement our PTS-Micro™, a rapid endotoxin detection system for sterile biopharmaceutical applications. We expect our comprehensive portfolio to drive increased adoption of our quality control testing solutions across both sterile and non-sterile applications.

Our Accugenix global lab network is the premier provider of ISO17025-accredited contract microbial identification services. Accugenix is an industry leader in species-level identification and strain typing of bacteria and fungi that are recovered from manufacturing facilities. Utilizing state-of-the-art and proprietary technologies, coupled with scientific expertise and analysis, Accugenix excels in providing accurate, timely, and cost-effective microbial identification services required to meet internal quality standards and government regulations.

Biologics Testing Solutions. We perform specialized testing of biologics frequently outsourced by pharmaceutical and biotechnology companies globally. Our laboratories in the U.S., Germany, Scotland, Ireland, and France provide timely and regulatory-compliant services in the areas of analytical, molecular biology, virology, cell-based bioassays, bioanalysis, immunochemistry, microbiology, cell biology, in vivo studies and related services. We provide analytical characterization, lot release and safety testing support for chemistry, manufacturing and controls and investigational new drug (IND) filings and confirm that biomanufacturing of clinical drug candidates and commercial drugs are consistent, correctly defined, stable, and essentially contaminant free. This testing is required by the FDA, EMA and other international regulatory authorities for our clients to obtain new drug approvals, to maintain government-licensed manufacturing facilities, and to manufacture and release market-approved therapeutic products for patient treatment.

Our cGMP manufacturing services facilities grow and store well-characterized early-stage client cell lines for later development or manufacture of therapeutic proteins and vaccines for clinical trials. We further design and provide viral clearance programs for Phase I, II, and III human clinical studies in our German and U.S. facilities.

To meet growing demand, we are currently expanding our Biologics Testing Solutions service offerings and facilities in the US and Europe.

Avian Vaccine Services. We are the global leader for the supply of SPF fertile chicken eggs and chickens. SPF chicken embryos are used by vaccine producers as self-contained “bioreactors” for the manufacture of live viruses. These viruses are used as a raw material for human and veterinary vaccine applications. The production of SPF eggs is performed under biosecure conditions, similar in many ways to our research model production. We have a worldwide presence, with several SPF egg production facilities in the U.S., and contracted production capabilities in Hungary. We also operate a specialized avian laboratory in the U.S., which provides in-house quality control testing of the SPF flocks, offers testing services to vaccine companies and commercial poultry operations, and manufactures poultry diagnostics and bulk antigens for poultry vaccines.

Our Strategy

Our objective is to be the preferred strategic global partner for our clients. Our strategy is to deliver a comprehensive and integrated portfolio of drug discovery and non-clinical development products, services, and solutions to support our clients' discovery and early-stage drug research, process development, scale up, and manufacturing efforts, and enable them to bring new and improved therapies to market faster and more cost effectively. In addition, we believe we can improve and augment drug discovery and early-stage development effectiveness by coordinating the dialog between large pharmaceutical, biotechnology, academic and non-governmental organizations, and venture capitalists. Separately, through our various Manufacturing segment businesses, we aim to be the premier provider of products and services that ensure our clients produce and release their products safely.

We believe we have certain competitive advantages in executing this strategy, as a result of our continuing focus on the following:

Integrated Early-Stage Portfolio. We are the only large, global CRO with a portfolio of products, services, and solutions that focuses on drug discovery and early-stage development. We provide research models and associated services, discovery research studies and services, and comprehensive safety assessment studies in both regulated and non-regulated environments. As such, we are able to collaborate with clients from target discovery through candidate selection. When critical decisions are made regarding which therapeutics will progress from discovery to development, we continue to work alongside our clients as the drug candidates move downstream. Our recognized expertise in early-stage drug research and pharmacology provides us with a competitive advantage and enables our clients to make critical drug development decisions more quickly. We understand our clients' therapies and the challenges they face during the discovery and development process, including mechanism of action, efficacy, drug metabolism, safety assessment, and toxicological testing critical for making “go/no-go” decisions.

Pharmaceutical Manufacturing Support Portfolio. We also offer a portfolio of products, services, and solutions that supports the process development, scale up, and quality control efforts of the biopharmaceutical industry. We provide products and services that support the development and release of commercialized biologics products. In particular, we are an industry leader in the areas of microbial detection and microbial identification to support process development and ongoing commercial production. Our portfolio spans a broad range of traditional and rapid methods, which provide the highest testing quality, enhance productivity, and reduce cycle time.

Deep Scientific Expertise. We provide a breadth and depth of scientific expertise across a broad range of therapeutic areas which may be too costly for our clients to build and/or maintain in-house. We provide essential capabilities, including biomarkers, biologics, medicinal chemistry, in vitro screening, in vivo pharmacology, immunology, pathology, biologics process development testing, microbial detection and identification, and other specialty service areas that have high infrastructure costs or are cost-prohibitive for clients to maintain independently. We continue to expand our portfolio in key therapeutic and pharmacology areas to align with our clients' internal drug discovery and development areas of focus. These areas of disease focus and expertise include oncology, metabolism and obesity, immunology, respiratory, bone and musculoskeletal, diabetes, cardiovascular, otology, ophthalmology, and CNS. In the areas of functional expertise, it includes synthetic and medicinal chemistry, cell line development, in vitro and in vivo assay development screening, non-clinical imaging, structural biology, process chemistry, reproductive and general toxicology, safety pharmacology, veterinary pathology, bioanalysis, scale up, and formulation development. We also continue to enhance our small molecule and biologics manufacturing portfolio in areas of greatest industry need,

where outsourcing provides major benefits for our clients and where we could provide significant benefits given our unique early development portfolio and global footprint.

Commitment to Animal Welfare. We are committed to being the worldwide leader in the humane care of laboratory animals and implementation of the “3Rs” initiative (Replacement, Reduction, and Refinement). As researchers, we are responsible to our clients, our animals and the public for the health and well-being of the animals in our care. We work hand-in-hand with the scientific community to understand how living conditions, handling procedures, and reduction of stress play an important role in the quality and efficiency of research.

Superior Quality and Client Support. We maintain scientific rigor and high-quality standards through management of key performance indicators and an intense focus on biosecurity and quality. These standards allow clients to access our global portfolio of products and services with the confidence that they will obtain consistent results no matter where they choose to obtain their products or conduct their research.

Flexible and Customized Environment to Provide the Right Solutions. Each of our clients is different, with unique needs and specific requirements. We understand the importance of flexibility, and leverage the expertise embedded in our integrated early-stage portfolio to provide customized solutions tailored to the specific need or therapeutic area for a particular client. By utilizing our streamlined and efficient facilities, we help clients create a flexible and integrated infrastructure in order to improve their workload and staffing requirements. This allows our clients to reduce internal capacity and/or staff while ensuring the conduct of effective quality research for their projects. We provide enhanced value to clients who use us as a full-service integrated partner over a longer period of time.

Large, Global Partner. We believe there is a particular advantage in being a full service, high-quality provider of research models and associated services, discovery and non-clinical in vivo and in vitro services, and manufacturing support on a global scale. Many of our clients, especially large biopharmaceutical companies, have decided to limit the number of suppliers with which they work. They frequently chose to partner with large Tier 1 CROs like Charles River, who can offer clients support across the early-stage drug research process as a result of broader portfolios and experience in project management. This includes extensive scientific, technical, and therapeutic area expertise, real-time access to data through secure portals, accelerated reporting and industry-leading Standard Exchange of Non-Clinical Data (SEND) capabilities, a global footprint, and streamlined and simplified processes and communications including professional project and relationship management. We are focused on leveraging our competitive advantages to ensure we are recognized as the premier preferred provider, thereby enabling us to build broader and deeper long-term strategic relationships with our clients.

Global biopharmaceutical companies are continuing to make the decision to outsource more significant tranches of their drug discovery, development, and manufacturing processes. Over the past few years we have entered into strategic relationships with leading global biopharmaceutical companies and expanded existing preferred provider agreements with other leading global biopharmaceutical companies. We also continue to broaden and extend our relationships with other research institutions across the portfolio. For example, during the past year we were awarded a large multi-year contract in our RMS segment with the National Institute of Allergy and Infectious Diseases (NIAID), one of the NIH’s largest institutes, to manage NIAID’s research model operations. We also extended our long-standing collaboration with The Michael J. Fox Foundation for Parkinson’s Research (MJFF). Since 2011, we have worked together with MJFF to accelerate the discovery of therapies for Parkinson’s disease.

Our clients' research and development needs continue to evolve, particularly with regard to larger biopharmaceutical companies. These clients are increasingly emphasizing studies that have greater translation to the clinic so that they can make appropriate decisions regarding the progression of potential therapeutic entities earlier in the development process. The result is a greater focus on discovery services, including in vivo pharmacology studies consisting of efficacy and non-GLP DMPK (drug metabolism and pharmacokinetics) studies. Second, these clients are choosing to outsource additional discovery and safety assessment services in order to increase the efficiency and effectiveness of their drug selection processes.

We believe that this changing environment will provide enhanced outsourcing opportunities for us in the future. We remain optimistic that our clients are increasingly receptive to partnering with CROs as a means of meeting their discovery and non-clinical support needs. We believe that the successful development of new therapies and outsourcing by the pharmaceutical industry will continue to be positive drivers of demand for our products and services.

We also believe that larger biopharmaceutical companies will increasingly focus on efficiencies and execution. They will continue to reassess what are core differentiators from research and development to commercialization. We expect they will also continue to be conservative in re-building infrastructure and expertise. This should lead to more opportunities for strategic

outsourcing as clients choose to utilize external resources rather than invest in internal infrastructure. By partnering with a CRO like Charles River, they can take advantage of scientific reporting efficiencies that can result in months or years saved in getting a drug to market. In addition, with one of the largest and most experienced SEND team in the industry, we believe that our services, quality and ability to navigate the complex world of electronic data for submission is an unmatched competitive advantage to be shared with all our clients. In the aggregate, we believe that the evolving large biopharmaceutical research and development business model will make our essential products and services even more relevant to our clients, and allow them to leverage our integrated offerings and expertise to drive their research, non-clinical development, and manufacturing efficiency and cost effectiveness.

We believe it is critical to participate in the strategic partnering process because these relationships are likely to extend for lengthy periods of time - three to five years. Furthermore, both the client and the CRO invest heavily in the initial phases of the relationship to successfully transfer work streams and establish governance processes. Given this investment, clients are less likely to change CROs at the conclusion of the initial relationship. As a result of this strategy, we have been successfully renewing the majority of our strategic partnerships.

We also believe that our portfolio provides flexible solutions that meet the customized needs for virtual and small biotechnology companies, which have limited or no infrastructure. These clients also value our ability to provide a broad range of services and integrated services where we work hand in hand with our clients to design, plan, and manage integrated projects and programs. This includes classically outsourced services, “insourced” services, and hybrid offerings blending resources from both our clients and our staff.

We maintain an intense focus on initiatives designed to allow us to drive profitable growth and maximize value for shareholders, and better position ourselves to operate successfully in the current and future business environment. As a result, we believe that we are well positioned to exploit both existing and new outsourcing opportunities.

We intend to continue to broaden the scope of the products and services we provide across the drug discovery and early-stage development continuum primarily through internal development, and, as needed, through focused acquisitions and alliances. Acquisitions are an integral part of our growth strategy, both to expand our portfolio and broaden our geographic footprint. We are committed to a disciplined approach that seeks to target businesses that are a sound strategic fit and that offer the prospect of enhancing shareholder value, typically including the achievement of a hurdle rate for return on invested capital above our weighted average cost of capital. For example, in each of 2017 and 2018, we completed strategic acquisitions. In August 2017, we acquired Brains On-Line (BOL), a leading CRO that provides critical data that advances novel therapeutics for the treatment of CNS diseases. In January 2018, we acquired KWS, a leading CRO specializing in in vitro and in vivo discovery testing services for immuno-oncology and inflammatory and infectious diseases and in April 2018 we acquired MPI, a premier non-clinical CRO providing comprehensive testing services to biopharmaceutical and medical device companies worldwide.

In addition to conventional mergers and acquisitions, our long-term strategy includes growth through establishing relationships and exploring other opportunities and areas that have the potential to strengthen our broad-based portfolio of products and services. Among other arrangements could include entering into a license agreement, strategic partnership or joint venture which will allow us to access cutting-edge or nascent technologies with an investment component (which ultimately may later become an acquisition). For example, in October 2018, we entered into an exclusive partnership with Distributed Bio, Inc., a leader in the computational design and optimization of antibody platforms.

We are also partnering with a diverse set of leading venture capital firms around the world primarily investing in life sciences, health care, and therapeutics with an emphasis on early-stage companies. Through these partnerships and close relationships, we gain insight into their company and asset portfolios and are thus able to promote our contract research services for discovery, safety assessment, and biologics testing. Thus, we have the opportunity to establish ourselves as a provider of choice for a unique client group which has emerged as biopharmaceutical companies rationalize and prioritize their development pipelines.

Clients

Our go-to-market approach employs a number of sales and marketing strategies, including dedicated sales teams for each of our major lines of business. We also maintain several sales specialists which either have specific technical expertise (often degreed scientists) or cover unique markets.

Our clients continue to consist primarily of all of the major biopharmaceutical companies; many biotechnology, agricultural and industrial chemical, life science, veterinary medicine, medical device, diagnostic, and consumer product companies; contract research and contract manufacturing organizations; and other commercial entities, as well as leading hospitals, academic

institutions, and government agencies. We have stable, long-term relationships with many of our clients. During 2018, no single commercial client accounted for more than 2.5% of our total revenue and no single client accounted for more than 6% of the revenue of any of our three business segments.

We continue to pursue a goal of expanding our relationships with our large biopharmaceutical clients, and with many of our larger mid-market clients. These relationships take different forms, from preferred provider arrangements to strategic partnerships. The structure of these relationships incentivizes clients to purchase more products and services across our early-stage portfolio. Because of the strength of these relationships, we have better insight into our clients' planning processes, and therefore, better visibility than in the past. For information regarding revenue attributable to each of our business segments for the last three fiscal years, please see Note 4, “Segment and Geographic Information” included in the Notes to Consolidated Financial Statements included elsewhere in this Form 10-K. For information regarding revenue and long-lived assets attributable to operations in the United States, Europe, Canada, Asia Pacific, and other countries for each of the last three fiscal years, please review Note 4, “Segment and Geographic Information” included in the Notes to Consolidated Financial Statements included elsewhere in this Form 10-K.

Sales, Marketing and Customer Support

In addition to our fields sales teams and related specialists, we also have a team of alliance managers who are organized by key client within our market segments (global biopharmaceutical, small and mid-sized pharmaceutical and biotechnology companies, and academic and government institutions). This enhances our ability to meet client needs by offering customized, tailored solutions across our entire portfolio. In addition, our clients benefit by additional support from a combination of technical specialists with specific scientific and therapeutic area expertise. We also apply the use of dedicated sales specialists for certain technical product lines, such as in our Manufacturing businesses.

We sell our products and services principally through our direct sales and business development teams who work in North America, Europe, and Asia. In addition to interactions with our direct sales force, our primary promotional activities include organizing scientific symposia, publishing scientific papers and newsletters, hosting webinars and seminars and making presentations at, and participating in, scientific conferences and trade shows in North America, Europe, and Asia. We supplement these scientifically based marketing activities with digital marketing, advertising, and direct mail. In certain areas, our direct sales force is supplemented by international distributors and agents.

Our internal marketing/product management teams support the field sales and business development teams while developing and implementing programs to create close working relationships with our clients in the biomedical research industry. We maintain client engagement, digital experience, inbound client support, technical assistance, and consulting service departments (in addition to project managers for our service businesses), which address both our clients' routine and more specialized needs and generally serve as a scientific resource for them. We frequently assist our clients in solving problems related to animal husbandry, health and genetics, biosecurity, non-clinical study design, regulatory consulting, protocol development, and other areas in which our expertise is widely recognized as a valuable resource by our clients.

Our marketing efforts are focused on stimulating demand for further outsourcing across our entire services portfolio. We believe that our ability to provide solutions that address all aspects of early-stage drug research are increasingly attractive to our clients, and we continue to design and market our commercial activities to deliver flexible, customized programs designed by segment to meet our clients' global and site-specific needs.

Competition

Our goal is to be a leader in each of the markets in which we participate. We compete in the marketplace on the basis of our therapeutic and scientific expertise in early-stage drug research, quality, reputation, flexibility, responsiveness, pricing, innovation, and global capabilities. We are able to offer a unique portfolio of early-stage products and services to support drug discovery and development.

We encounter a broad range of competitors of different sizes and capabilities in each of our three businesses segments, although the largest competitors within any segment vary. We also face competition from the internal discovery and development resources of our clients.

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For RMS, we have five main competitors of which one is a government funded, not-for-profit entity; one is part of a large public company; two are privately held in Europe and one is privately held in the U.S. We believe that none of these competitors compares to us in global reach, financial strength, breadth of product and services offerings, technical expertise, or pharmaceutical and biotechnology industry relationships.

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For DSA, both our Discovery Services and Safety Assessment businesses have numerous competitors. Discovery has hundreds of competitors, as it is a highly competitive and fragmented market; Safety Assessment has dozens of competitors of varying size, but it has five main competitors; one is part of a large public company in the U.S.; one is a public company in China; one is privately held in Canada; and two are privately held in Europe. Our DSA segment also competes with in-house departments of pharmaceutical and biotechnology companies, universities, and teaching hospitals.

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For Manufacturing, each of our underlying businesses has several competitors. In addition to many smaller competitors, Biologics has five main competitors, of which four are public companies in Europe and one is a public company in China. Avian has one main competitor to its SPF eggs business, which is privately held in Europe, and numerous competitors for specialized avian laboratory services. Microbial Solutions has four main competitors, of which three are public companies in Europe and one is privately held in the U.S.

Industry Support and Animal Welfare

One of our core values is a concern for, and commitment to, animal welfare. We have been in the forefront of animal welfare improvements in our industry, and continue to show our commitment with special recognition programs for employees who demonstrate an extraordinary commitment in this critical aspect of our business. We created our own Humane Care Initiative, which is directed by our Animal Welfare and Training Group. The goal of the initiative is to assure that we continue as a worldwide leader in the humane care of laboratory animals and implementation of the 3Rs (Replacement, Reduction and Refinement). Laboratory animals are an important resource that further our knowledge of living systems and contribute to the discovery of life-saving drugs and procedures. We work hand-in-hand with the scientific community to understand how living conditions, handling procedures and stress play a role in the quality and efficiency of research. As researchers, we are responsible to our clients and the public for the health and well-being of the animals in our care.

We are firmly committed to the 3Rs and to reducing the number of animals used by emphasizing health and genetic integrity to decrease study data variability. Whenever possible, we use technological advances such as new diagnostic tests for screening pathogens in laboratory rodents, microsampling and in vitro assays. We also partner with clients to develop study designs decreasing the number of animals needed and suggesting pilot studies where appropriate. We also maintain a quarterly award recognizing our employees’ efforts to continually implement the 3Rs at our sites globally.

We support a wide variety of organizations and individuals working to further animal welfare as well as the interests of the biomedical research community. We fund scholarships to laboratory animal training programs, provide financial support to non-profit institutions that educate the public about the benefits of animal research and provide awards and prizes to outstanding leaders in the laboratory animal medicine field and the supporters of 3Rs.

Employees

As of December 29, 2018, we had approximately 14,700 employees (including approximately 1,600 science professionals with advanced degrees, including Ph.D.s, D.V.M.s and M.D.s). Our employees are not unionized in the U.S. Employees at some of our European facilities are represented by works councils, employee representative groups and/or unions, which is consistent with local customs for our industry. We believe we have good relationships with our employees, based on a number of factors including employee retention.

Backlog

Our backlog for our RMS, DSA and Manufacturing reportable segments was $106.5 million, $900.8 million and $74.4 million, respectively, as of December 29, 2018, as compared to $96.8 million, $590.0 million and $46.9 million, respectively, as of December 30, 2017. Related services are performed over varying durations, from short to extended periods of time, which may be as long as several years. We maintain an order backlog to track anticipated revenue from studies and projects that either have not started, but are anticipated to begin in the near future, or are in process and have not been completed. We only recognize a study or project in backlog after we have received written evidence of a client's intention to proceed. Canceled studies or projects are removed from backlog.

We believe our aggregate backlog as of any date is not necessarily a meaningful indicator of our future results for a variety of reasons. First, studies vary in duration (i.e., some studies or projects that are included in December 29, 2018 backlog may be completed in 2019, while others may be completed in later years). Second, the scope of studies or projects may change, which may either increase or decrease their value. Third, studies or projects included in backlog may be subject to bonus or penalty payments. Fourth, studies or projects may be terminated or delayed at any time by the client or regulatory authorities for a number of reasons, including the failure of a drug to satisfy safety and efficacy requirements, or a sponsor making a strategic

decision that a study or service is no longer necessary. Delayed contracts remain in our backlog until a determination of whether to continue, modify, or cancel the study has been made. We cannot provide any assurance that we will be able to realize all or most of the net revenues included in backlog or estimate the portion to be filled in the current year.

Regulatory Matters

As our business operates in a number of distinct operating environments and in a variety of locations worldwide, we are subject to numerous, and sometimes overlapping, regulatory environments.

The Animal Welfare Act (AWA) governs the care and use of certain species of animals used for research in the U.S. other than laboratory rats, mice and chickens bred for use in research. As a result, most of our U.S. small animal research models activities and our avian vaccine services operations are not subject to regulation under the AWA. For regulated species, the AWA and the associated Animal Care regulations require producers and users of regulated species to provide veterinary care and to utilize specific husbandry practices such as cage size, shipping conditions, sanitation and environmental enrichment to assure the welfare of these animals. Separately, facilities using live vertebrate animals in research funded by the U.S. Public Health Service (PHS) must also adhere to the PHS Policy on Humane Care and Use of Laboratory Animals and follow the Guide for the Care and Use of Laboratory Animals produced by the Institute for Laboratory Animal Research.

We comply with licensing and registration requirement standards set by the United States Department of Agriculture (USDA) and similar agencies in other countries such as Europe, China and Japan for the care, handling and use of regulated species and birds bred for research. All of our DSA and RMS facilities in North America and Europe are either accredited or in the process of initiating accreditation by AAALAC International, a private, nonprofit, international organization that promotes the humane treatment of animals in science through voluntary accreditation and assessment programs.

Our import and export of animals and our operations in foreign countries are subject to international agreements and conventions, as well as a variety of national, regional, and local laws and regulations, which establish the standards for the humane treatment, care, handling, and transport of animals by dealers and research facilities.

We conduct non-clinical safety assessment studies to support the submissions for approval or licensing of our clients' products throughout the world. Many of these studies must comply with national statutory or regulatory requirements for GLP. GLP regulations describe a quality system for the scientific, operational and quality process and the conditions under which non-clinical studies are planned, performed, monitored, recorded, reported and archived. GLP compliance is required by such regulatory agencies as the FDA, United States Environmental Protection Agency, European Medicines Agency, Medicines and Healthcare Products Regulatory Agency in the United Kingdom (U.K.), Health Products Regulatory Authority in Ireland, Health Canada and other similar monitoring authorities in the countries where we operate. GLP requirements are significantly harmonized throughout the world and our laboratories are capable of conducting studies in compliance with all necessary requirements.

Regulatory monitoring authorities such as the FDA, Medicines and Healthcare Products Regulatory Agency and OECD countries have indicated an increased emphasis on the management of electronic records generated by computerized systems to ensure data integrity under newly issued guidance.

We have established a formal program to manage regulatory and client expectations regarding data integrity within our regulated businesses. Although each business has a different impact on patient safety, all are expected to generate data with integrity. We recognize the importance of generating quality, reliable, sustainable data and have instituted a number of processes to ensure we are consistent in our approach.

At a global level, retention of data and controls for electronic systems, proprietary data and quality standards are covered by global policies. We also have controls in place such as quality manuals, policies and procedures, work instructions, document control processes, training, quality assurance and quality control processes and personnel, validated computerized systems and archiving requirements. Within businesses, procedures govern performance of activities to ensure data integrity throughout its life cycle.

Our Manufacturing businesses produce endotoxin test kits, reagents, cell banks used in research and biopharmaceutical production, clinical trial vaccines and vaccine support products. Additionally, several of our laboratories conduct biosafety and analytical testing such as identity, stability, sterility and potency testing in support of our clients' manufacturing programs working with our clients to fulfill their validation requirements as applicable. These activities are subject to regulation and consequently require these businesses to be inspected by the FDA and other national regulatory agencies under their respective current Good Manufacturing Practice (cGMP) regulations. These regulations require that we manufacture our products or perform testing in a prescribed manner with respect to cGMP compliance, and maintain records of our manufacturing, testing

and control activities. In addition, the specific activities of some of our businesses require us to hold specialized licenses for the manufacture, distribution and/or marketing of particular products.

All of our sites are subject to licensing and regulation, as appropriate under international treaties and conventions, including national, regional and local laws relating to:


•	the surface and air transportation of chemicals, biological reagents and laboratory specimens;


•	the handling, use, storage, and disposal of chemicals (including narcotics and psychotropic drugs), biological reagents, laboratory specimens, hazardous waste, and radioactive materials;


•	the procurement, handling, use, storage, and disposal of human cells, tissues, and cellular and tissue-based products for research purposes;


•	the safety and health of employees and visitors to our facilities; and


•	protection of the environment and general public.

Global compliance programs are managed by a dedicated group responsible for global regulatory affairs and compliance, including internal assessment of quality programs and systems to ensure that all business sectors comply with applicable statutory and regulatory requirements and satisfy our clients’ expectations for quality and regulatory compliance. To assure these compliance obligations, we established quality assurance units (QAUs) in each of our regulated businesses that require independent oversight. The QAUs operate independently from those individuals that direct and conduct studies, manufacturing or analytical testing that studies that supports manufacturing.

Intellectual Property

We develop and implement computer software and technically derived procedures and products intended to maximize the quality and effectiveness of our services. Although our intellectual property rights are valuable to our success, we believe that such factors as the technical expertise, proprietary know-how, ability, and experience of our professionals are more important, and that, overall, these technological capabilities provide significant benefits to our clients. Where we consider it appropriate, steps are taken to protect our know-how through confidentiality agreements and registrations. In addition, we in-license technology and products from other companies when it enhances our product and services businesses. In the future, in-licensing may become a larger initiative to enhance our offerings, particularly as we focus on therapeutic area expertise. With the exception of technology related to our Microbial Solutions testing business, we have no patents, trademarks, licenses, franchises, or concessions which are material and upon which any of our products or services are dependent.

Corporate Governance

We are committed to operating our business with integrity and accountability. We strive to meet or exceed all of the corporate governance standards established by the New York Stock Exchange, the SEC, and the United States Federal government as implemented by the Sarbanes-Oxley Act of 2002, the Dodd-Frank Wall Street Reform and Consumer Protection Act of 2010 and other applicable laws, rules and regulations. Each member of our Board of Directors, other than Mr. Foster who is also our Chief Executive Officer, is independent and has no significant financial, business, or personal ties to us or management and all of our board committees (with the exception of our Executive Committee and our Strategic Planning and Capital Allocation Committee) are composed entirely of independent directors. The Board adheres to our Corporate Governance Guidelines and a Code of Business Conduct and Ethics which has been communicated to employees and posted on our website. We are diligent in complying with established accounting principles and are committed to providing financial information that is transparent, timely, and accurate. We have a Related Person Transactions Policy designed to promote the timely identification of such transactions and to ensure we give appropriate consideration to any real or perceived conflicts in our commercial arrangements. We have established global process through which employees, either directly or anonymously, can notify management (and the Audit Committee of the Board of Directors) of alleged accounting and auditing concerns or violations including fraud. Our internal Disclosure Committee meets regularly and operates pursuant to formal disclosure procedures and guidelines to help ensure that our public disclosures, including our periodic reports filed with the SEC, earnings releases and other written information that we disclose to the investment community are complete, accurate and timely. We continually monitor developments in the law and stock exchange regulations, as well as overall corporate governance trends and intend to adopt new procedures consistent with such developments to the extent applicable and appropriate to our Company. Copies of our Corporate Governance Guidelines, Code of Business Conduct and Ethics, and Related Person Transactions Policy are available on our website at http://ir.criver.com under the “Investor Relations - Corporate Governance” caption.

Executive Officers of the Registrant (pursuant to Instruction 3 to Item 401(b) of Regulation S-K)

Below are the names, ages and principal occupations of each of our current executive officers. All such persons have been elected to serve until their successors are elected and qualified or until their earlier resignation or removal.

James C. Foster, age 68, joined us in 1976 as General Counsel. During his tenure, Mr. Foster has held various staff and managerial positions, and was named Chief Executive Officer and President in 1992 and our Chairman in 2000.

William D. Barbo, age 58, joined us in 1982 as a laboratory technician. Between 1982 and 2005, Mr. Barbo served in a variety of positions of increasing responsibilities. He was named Corporate Vice President of Research Models and Services in 2005, Corporate Senior Vice President of Global Sales and Marketing in 2010, and Corporate Executive Vice President and Chief Commercial Officer in October 2016.

Birgit Girshick, age 49, joined us in 1989 and originally held positions of increasing responsibility in our RMS Germany and RMS Avian Vaccine businesses. In 2004, Ms. Girshick was promoted to General Manager of the RMS Avian Vaccine Services business. She was named Executive Director, RMS Process Improvement in 2009, and Corporate Vice President, Global Biopharmaceutical Services in 2010. In 2013, Ms. Girshick was promoted to Corporate Senior Vice President, Research Models and Biologics Testing Solutions. In 2016, Ms. Girshick was tasked with leading the integration of WIL Research into our Safety Assessment business. Also in 2016, Ms. Girshick assumed the role of Corporate Senior Vice President, Global Discovery Services. In February 2018, Ms. Girshick was appointed Corporate Executive Vice President, Global Discovery and Safety Assessment and in August 2018, additionally took on responsibility for our Biologics Testing Solutions and Avian Vaccine Services business.

David P. Johst, age 57, joined us in 1991 as Corporate Counsel and was named Vice President, Human Resources in 1995. He became Vice President, Human Resources and Administration in 1996, a Senior Vice President in 1999, and a Corporate Executive Vice President in 2005. He currently serves as our General Counsel and Chief Administrative Officer and is responsible for overseeing our corporate legal function and several other corporate staff departments. Prior to joining us, Mr. Johst was in private practice at the law firm of Hale and Dorr (now WilmerHale).

Joseph W. LaPlume, age 45, joined us in 2005 as Senior Corporate Counsel. He became Deputy General Counsel in 2010, Vice President, Corporate Development in 2011, Senior Vice President in 2014, and Corporate Executive Vice President, Corporate Development and Strategy in January 2019. In his current role, he oversees all aspects of strategic planning and corporate development activities across business segments and geographies. Prior to joining us, Mr. LaPlume was a corporate lawyer at GTECH Corporation and in private practice at the law firms of Mintz Levin and Goulston & Storrs. Mr. LaPlume received M.B.A. and J.D. degrees from Boston University, and a Bachelor’s degree from Trinity College.

David R. Smith, age 53, has served as our Corporate Executive Vice President and Chief Financial Officer since August 2015. He joined us as Corporate Vice President, Discovery Services through our acquisition of Argenta and BioFocus from Galapagos NV in March 2014 and was promoted to Corporate Senior Vice President, Global Discovery Services, in October 2014. At Galapagos, he served in various capacities, including as Chief Executive Officer of its Galapagos Services division and as Chief Financial Officer. Mr. Smith served as Chief Financial Officer for Cambridge University Hospitals from 2007 to 2013. Mr. Smith spent eight years at PricewaterhouseCoopers prior to joining AstraZeneca in 1997, where he spent the next nine years in various finance and business roles of increasingly greater responsibility.

Item 1A. Risk Factors

Set forth below, elsewhere in this Form 10-K and in other documents we file with the SEC are risks and uncertainties that could cause actual results to differ materially from the results contemplated by the forward-looking statements contained in this Form 10-K. We note that factors set forth below, individually or in the aggregate, may cause our actual results to differ materially from expected and historical results. We note these factors for investors as permitted by the Private Securities Litigation Reform Act of 1995. You should understand that it is not possible to predict or identify all such factors. Consequently, you should not consider the following to be a complete discussion of all potential risks or uncertainties.

A reduction in research and development budgets at pharmaceutical and biotechnology companies may adversely affect our business.

Our clients include researchers at pharmaceutical and biotechnology companies. Our ability to continue to grow and win new business is dependent in large part upon the ability and willingness of the pharmaceutical and biotechnology industries to continue to spend on molecules in the non-clinical phases of research and development (and in particular discovery and safety assessment) and to outsource the products and services we provide. Fluctuations in the expenditure amounts in each phase of the research and development budgets of these researchers and their organizations could have a significant effect on the demand for our products and services. Research and development budgets fluctuate due to changes in available resources, mergers of

pharmaceutical and biotechnology companies, spending priorities (including available resources of our biotechnology clients, particularly those that are cash-negative, who may be highly focused on rationing their liquid assets in a challenging funding environment), general economic conditions, institutional budgetary policies and the impact of government regulations, including potential drug pricing legislation. Available funding for biotechnology clients in particular may be affected by the capital markets, investment objectives of venture capital investors, and priorities of biopharmaceutical industry sponsors.

Our business could be adversely affected by any significant decrease in drug research and development expenditures by pharmaceutical and biotechnology companies, as well as by academic institutions, government laboratories, or private foundations. Similarly, economic factors and industry trends that affect our clients in these industries also affect their research and development budgets and, consequentially, our business as well. Furthermore, our clients (particularly larger biopharmaceutical companies) continue to search for ways to maximize the return on their investments with a focus on leaner research and development costs per drug candidate. For additional discussion of the factors that we believe have recently been influencing research and development budgets at our clients, please see the sections entitled “Our Strategy” and "Management's Discussion and Analysis of Financial Condition and Results of Operations" included elsewhere in this Form 10-K.

A reduction or delay in government funding of research and development may adversely affect our business.

A portion of revenue, predominantly in our RMS segment, is derived from clients at academic institutions and research laboratories whose funding is partially dependent on both the level and timing of funding from government sources such as the U.S. National Institutes of Health (NIH) and similar domestic and international agencies, which can be difficult to forecast. We also sell directly to the NIH and these other agencies. Government funding of research and development is subject to the political process, which is inherently fluid and unpredictable. Our revenue may be adversely affected if our clients delay purchases as a result of uncertainties surrounding the approval of government budget proposals. Also, government proposals to reduce or eliminate budgetary deficits have sometimes included reduced allocations to the NIH and other government agencies that fund research and development activities. Other programs, such as homeland security or defense, or general efforts to reduce the federal budget deficit could be viewed by the U.S. government as a higher priority. These budgetary pressures may result in reduced allocations in the future to government agencies that fund research and development activities. A reduction in government funding for the NIH or other government research agencies could adversely affect our business and our financial results. Also, there is no guarantee that NIH funding will be directed towards projects and studies that require use of our products and services.

We could experience a breach of the confidentiality of the information we hold or of the security of our computer systems.

We operate large and complex computer systems that contain significant amounts of client data. As a routine element of our business, we collect, analyze, and retain substantial amounts of data pertaining to the non-clinical studies we conduct for our clients. Unauthorized third parties could attempt to gain entry to such computer systems for the purpose of stealing data or disrupting the systems. We believe that we have taken appropriate measures to protect them from intrusion, and we continue to improve and enhance our systems in this regard (including with respect to how we process and report any breaches), but in the event that our efforts are unsuccessful, we could suffer significant harm. Our contracts with our clients typically contain provisions that require us to keep confidential the information generated from these studies. In the event the confidentiality of such information was compromised, we could suffer significant harm.

We are required to comply with the data privacy and security laws in many jurisdictions. For example, we are required to comply with the European Union (EU) General Data Protection Regulation (GDPR) which became effective on May 25, 2018 and imposes heightened obligations and enhanced penalties for noncompliance (including up to four percent (4%) of global revenue). The cost of compliance with the GDPR and the potential for fines and penalties in the event of a violation of the GDPR may have a significant adverse effect on our business and operations. We have made changes to, and investments in, our business practices and will continue to monitor developments and make appropriate changes to help attain compliance with these evolving and complex regulations.

Contaminations in our animal populations can damage our inventory, harm our reputation for contaminant-free production, result in decreased sales and cause us to incur additional costs.

Our research models and fertile chicken eggs must be free of certain infectious agents such as certain viruses and bacteria because the presence of these contaminants can distort or compromise the quality of research results and could adversely impact human or animal health. The presence of these infectious agents in our animal production facilities and certain service operations could disrupt our contaminant-free research model and fertile egg production as well as our animal services businesses including GEMS, harm our reputation for contaminant-free production, and result in decreased sales.

If they occur, contaminations typically require cleaning up, renovating, disinfecting, retesting, and restarting production or services. Such clean-ups result in inventory loss, clean-up and start-up costs, and reduced sales as a result of lost client orders and potentially credits for prior shipments. In addition to microbiological contaminations, the potential for genetic mix-ups or mis-matings also exists and may require the restarting of the applicable colonies. While this does not require the complete clean-up, renovation, and disinfection of the room, it would likely result in inventory loss, additional start-up costs and possibly reduced sales. Contaminations also expose us to risks that clients will request compensation for damages in excess of our contractual indemnification requirements. There also exists a risk that contaminations from models that we produce may affect our client's facilities, with similar impact to them for which we could be liable for damages. In some cases, we may produce or import animals carrying infectious agents capable of causing disease in humans; and in the case of such a contamination or undiagnosed infection, there could be a possible risk of human exposure and infection.

We are also subject to similar contamination risks with respect to our large research models. While some of these models are owned by us and maintained at our facilities, others are reserved for us, and maintained at sites operated by the original provider. Accordingly, risk of contamination may be outside of our control, and we depend on the practices and protocols of third parties to ensure a contamination-free environment. A contamination may require extended CDC quarantine with subsequent reduced sales as a result of lost client orders as well as the potential for complete inventory loss and disinfection of the affected quarantine rooms. Furthermore, while we often negotiate for contractual risk indemnification, we may be exposed in the event of such contaminations if the third party does not fulfill its indemnification obligation or is unable to as a result of insolvency or other impediments.

All such contaminations described above are unanticipated and difficult to predict and could adversely impact our financial results. Many of our operations are comprised of complex mechanical systems which are subject to periodic failure, including aging fatigue. Such failures are unpredictable, and while we have made significant capital expenditures designed to create redundancy within these mechanical systems, strengthen our biosecurity, improve our operating procedures to protect against such contaminations, and replace impaired systems and equipment in advance of such events, failures and/or contaminations may still occur.

Any failure by us to comply with applicable regulations and related guidance could harm our reputation and operating results, and compliance with new regulations and guidance may result in additional costs.

Any failure on our part to comply with applicable regulations could result in the termination of ongoing research or the disqualification of data for submission on behalf of our clients to regulatory authorities. This could harm our reputation, our prospects for future work and our operating results. For example, the issuance of a notice of objectionable observations or a warning from the FDA based on a finding of a material violation affecting data integrity by us for GLP or cGMP requirements could materially and adversely affect us. If our operations are found to violate any applicable law or other governmental regulations, we might be subject to civil and criminal penalties, damages and fines. Any action against us for violation of these laws, even if we successfully defend against it, could cause us to incur significant legal expenses, divert our management's attention from the operation of our business and damage our reputation.

Regulatory monitoring authorities such as the FDA, Medicines and Healthcare Products Regulatory Agency and OECD have increased their emphasis on the management of computerized systems to ensure data integrity. New guidance related to the need for data integrity compliance programs have recently been released and we may require additional efforts for validation, audit trail review and archiving activities. To assure that we have proper regulatory oversight over our electronic records, a dedicated quality function reviews our computerized system practices to ensure that appropriate record controls are in place and that a robust audit strategy confirms requirements for compliance. In addition, the FDA’s recently applicable SEND (Standardization for Exchange of Nonclinical Data) standards which apply to our clients’ NDA and IND submissions require us to provide electronic data in specific formats that will allow for more efficient, higher quality regulatory reviews. Accordingly, our clients expect us to timely deliver their nonclinical data compliant with SEND. Notwithstanding, some of these standards require additional operating and capital expenses that will impact not only us and our industry competitors, but clients in the biomedical research community. Non-compliance with any of these expectations could lead to official action by a government authority, damage to our reputation and a potential loss of business.

In addition, regulations and guidance worldwide concerning the production and use of laboratory animals for research purposes continue to evolve. Similarly, guidance has been and continues to be developed for other areas that impact the biomedical research community on both a national and international basis including transportation, mandated contingency planning, euthanasia guidance, import and export requirements of biological materials, health monitoring requirements and the use of disinfectants.

The outsourcing trend in non-clinical (discovery and safety assessment) stages of drug discovery and development may decrease, which could impair our growth.

Over the past decade, pharmaceutical and biotechnology companies have generally increased their outsourcing of non-clinical research support activities, such as discovery and safety assessment. While many industry analysts expect the outsourcing trend to continue to increase for the next several years (although with different growth rates for different phases of drug discovery and development), decreases in such outsourcing may result in a diminished growth rate in the sales of any one or more of our service lines and may adversely affect our financial condition and results of operations. For additional discussion of the factors that we believe have recently been influencing outsourcing demand from our clients, please see the section entitled “Our Strategy” included elsewhere in this Form 10-K.

Changes in government regulation or in practices relating to the pharmaceutical or biotechnology industries, including potential healthcare reform, could decrease the need for the services we provide.

Governmental agencies throughout the world strictly regulate the drug development process. Our business involves helping pharmaceutical and biotechnology companies, among others, navigate the regulatory drug approval process. Accordingly, many regulations, and often new regulations, are expected to result in higher regulatory standards and often additional revenues for companies that service these industries. However, some changes in regulations, such as a relaxation in regulatory requirements or the introduction of streamlined or expedited drug approval procedures, or an increase in regulatory requirements that we have difficulty satisfying or that make our services less competitive, could eliminate or substantially reduce the demand for our services.

Although we believe we are currently in compliance in all material respects with national, regional, and local laws, as well as other accepted guidance used by oversight bodies (which include the USDA, the standards set by the International Air Transport Association, the Convention on International Trade in Endangered Species of Wild Fauna and Flora, U.S. Fish and Wildlife Service, The Centers for Disease Control, the Department of Transportation, the Department of State, the office of Laboratory Animal Welfare of NIH, the Drug Enforcement Agency, as well as numerous other oversight agencies in Canada, Europe, and Asia), failure to comply could subject us to denial of the right to conduct business, fines, criminal penalties, and other enforcement actions. In addition, if regulatory authorities were to mandate a significant reduction in safety assessment procedures which utilize laboratory animals (as has been advocated by certain groups), certain segments of our business could be materially adversely affected.

In March 2010, the U.S. Congress enacted healthcare reform legislation, the Patient Protection and Affordable Care Act, or the ACA, intended over time to expand health insurance coverage and impose health industry cost containment measures. In June 2012, the U.S. Supreme Court upheld the constitutionality of this legislation. The Court’s decision allowed implementation of key provisions impacting drug manufacturers going forward, including, but not limited to, (1) expansion of access to health insurance coverage, (2) expansion of the Medicaid program, (3) enactment of an industry fee on pharmaceutical companies, and (4) imposition of an excise tax on the sale of medical devices. In May 2017, the U.S. House of Representatives voted to pass the American Health Care Act (the AHCA), which would repeal many provisions of the ACA. Although the U.S. Senate considered but failed to pass the AHCA and other comparable measures, the U.S. Congress may consider further legislation to repeal or replace elements of the ACA. In addition, the Tax Cuts and Jobs Act, which President Trump signed into law in December 2017, repeals the ACA’s individual health insurance mandate, which is considered a key component of the ACA. Since the law and its implementation continue to face challenges in Congress and federal courts, and from certain state governments, opposition advocacy groups, and some small business organizations, as well as from the incoming president and his administration, we are uncertain as to the ultimate effects of this legislation on our business and are unable to predict what legislative proposals will be adopted in the future.

Implementation of healthcare reform legislation may have certain benefits, but also may contain costs that could limit the profits that can be made from the development of new drugs. This could adversely affect research and development expenditures by pharmaceutical and biotechnology companies, which could in turn decrease the business opportunities available to us both in the U.S. and abroad. In addition, new laws or regulations may create a risk of liability, increase our costs, or limit our service offerings. Furthermore, if health insurers were to change their practices with respect to reimbursements for pharmaceutical products, our clients may spend less, or reduce their growth in spending on research and development.

While it is not possible to predict whether and when any such changes will occur, changes at the local, state or federal level may significantly impact our domestic and foreign businesses and/or those of our clients. Furthermore, modifications to international trade policy, public company reporting requirements, environmental regulation and antitrust enforcement may have a material impact on us or our clients.

Our revenue generating agreements contain termination and service reduction provisions or may otherwise terminate according to their term, which may result in less contract revenue than we anticipate.

Many of our agreements with both large and small clients, including those which underlie our strategic relationships with some of our more significant clients, provide for termination or reduction in scope with little or no notice. Many of our contracts provide for services on a fixed price or fee-for-service with a cap basis and, accordingly, we bear the financial risk if we initially under-price our contracts or otherwise overrun our cost estimates. In addition, we sell our products and services to our competitors, and similarly they sell products and services to us. For instance, we have historically entered into, and currently are party to, contracts with certain of our competitors to distribute specialty research models in locations where our competitors may not have distribution capabilities.

Clients and/or competitors may elect to terminate their agreements with us for various reasons including:


•	the products being tested fail to satisfy safety requirements;


•	unexpected or undesired study results;


•	production problems resulting in shortages of the drug being tested;


•	a client's decision to forego or terminate a particular study;


•	establishment of alternative distribution channels by our competitors;


•	the loss of funding for the particular research study; or


•	general convenience/counterparty preference.

If a client or competitor terminates a contract with us, we are typically entitled under the terms of the contract to receive revenue earned to date as well as certain other costs and, in some cases, termination fees. Cancellation of a large contract or proximate delay, cancellation or conclusion of multiple contracts could materially adversely affect our business and, therefore, may adversely affect our operating results.

Several of our product and service offerings are dependent on a limited source of supply, which if interrupted could adversely affect our business.

We depend on a limited international source of supply for certain products, such as large research models. Disruptions to their continued supply may arise from health problems, export or import laws/restrictions or embargoes, international trade regulations, foreign government or economic instability, severe weather conditions, increased competition among suppliers for models, disruptions to the air travel system, activist campaigns, commercial disputes, supplier insolvency, or other normal-course or unanticipated events. Any disruption of supply could harm our business if we cannot remove the disruption or are unable to secure an alternative or secondary supply source on comparable commercial terms.

If we are not successful in selecting and integrating the businesses and technologies we acquire, or in managing our current and future divestitures, our business may suffer.

During the past sixteen years, we have steadily expanded our business through numerous acquisitions. We plan to continue to acquire businesses and technologies and form strategic alliances. However, businesses and technologies may not be available on terms and conditions we find acceptable. We risk spending time and money investigating and negotiating with potential acquisition or alliance partners, but not completing transactions.

In April 2018, we acquired MPI Research, a non-clinical CRO, providing comprehensive testing services to biopharmaceutical and medical device companies worldwide. This transaction was our largest acquisition since 2004. In February 2019, we signed a binding offer to acquire Citoxlab for €448 million in cash (or approximately $510 million based on current exchange rates). Citoxlab is a non-clinical CRO, specializing in regulated safety assessment services, non-regulated discovery services, and medical device testing.

Acquisitions and alliances involve numerous risks which may include:


•	difficulties in achieving business and financial success;


•	difficulties and expenses incurred in assimilating and integrating operations, services, products, technologies, or pre-existing relationships with our clients, distributors, and suppliers;


•	challenges with developing and operating new businesses, including those which are materially different from our existing businesses and which may require the development or acquisition of new internal capabilities and expertise;


•	potential losses resulting from undiscovered liabilities of acquired companies that are not covered by the indemnification we may obtain from the seller or the insurance we acquire in connection with the transaction;


•	loss of key employees;


•	the presence or absence of adequate internal controls and/or significant fraud in the financial systems of acquired companies;


•	diversion of management's attention from other business concerns;


•	becoming subject to a more expansive regulatory environment;


•	acquisitions could be dilutive to earnings, or in the event of acquisitions made through the issuance of our common stock to the shareholders of the acquired company, dilutive to the percentage of ownership of our existing shareholders;


•	risks of not being able to overcome differences in foreign business practices, customs, and importation regulations, language, and other cultural barriers in connection with the acquisition of foreign companies;


•	new technologies and products may be developed which cause businesses or assets we acquire to become less valuable; and


•	risks that disagreements or disputes with prior owners of an acquired business, technology, service, or product may result in litigation expenses and diversion of our management's attention.

In the event that an acquired business, technology, or an alliance does not meet our expectations, our results of operations may be adversely affected.

Some of the same risks exist when we decide to sell a business, site, or product line. In addition, divestitures could involve additional risks, including the following:


•	difficulties in the separation of operations, services, products, and personnel;


•	diversion of management's attention from other business concerns; and


•	the need to agree to retain or assume certain current or future liabilities in order to complete the divestiture.

We continually evaluate the performance and strategic fit of our businesses (including specific product lines and service offerings). These and any divestitures may result in significant write-offs, including those related to goodwill and other intangible assets, which could have an adverse effect on our results of operations and financial condition. In addition, we may encounter difficulty in finding buyers, or, alternative exit strategies at acceptable prices and terms, and in a timely manner. We may not be successful in managing these or any other significant risks that we encounter in divesting a business, site, or product line or service offering, and as a result, we may not achieve some or all of the expected benefits of the divestiture.

Impairment of goodwill or other intangible assets may adversely impact future results of operations.

We have intangible assets, including goodwill, on our balance sheet due to our acquisitions of businesses. The initial identification and valuation of these intangible assets and the determination of the estimated useful lives at the time of acquisition involve use of management judgments and estimates. These estimates are based on, among other factors, projections of cash flows that arise from identifiable intangible assets of acquired businesses and discount rates based on an analysis of our weighted average cost of capital, adjusted for specific risks associated with the assets. Disruptions in global financial markets and deterioration of economic conditions could, among other things, impact the discount rate and other assumptions used in the valuations and actual cash flows arising from a particular intangible asset could vary from projected cash flows, which could imply different carrying values from those established at the dates of acquisition and which could result in impairment of such assets.

If the future growth and operating results of our business are not as strong as anticipated, overall macroeconomic or industry conditions deteriorate and/or our market capitalization declines, this could impact the assumptions used in establishing the carrying value of goodwill or other intangible assets. To the extent goodwill or other intangible assets are impaired, their carrying value will be written down to their implied fair values and a charge will be made to our income from continuing

operations. Such an impairment charge could materially and adversely affect our operating results. As of December 29, 2018, the carrying amount of goodwill and other intangibles on our consolidated balance sheet was $1.9 billion.

Our business is subject to risks relating to operating internationally.

A significant part of our revenue is derived from operations outside the U.S. Our international revenue represented approximately one-half of our total revenue in recent years. We expect that international revenue will continue to account for a significant percentage of our total revenue for the foreseeable future. There are a number of risks associated with our international business including:

•

foreign currencies we receive for sales and in which we record expenses outside the U.S. could be subject to unfavorable exchange rates with the U.S. dollar and reduce the amount of revenue and cash flow (and increase the amount of expenses) that we recognize and cause fluctuations in reported financial results. The favorable effects of changes in currency exchange rates increased our 2018 revenue by approximately $24 million, or 1.3%, while unfavorable foreign currency effects decreased our 2017 revenues by less than $1 million, or less than 1%, respectively;

•

foreign currency exposure associated with differences between where we conduct business, our exposure to currency exchange rate fluctuations results from the currency translation exposure associated with the preparation of our consolidated financial statements, as well as from the exposure associated with transactions of our subsidiaries that are denominated in a currency other than the respective subsidiary's functional currency. While our financial results are reported in U.S. Dollars, the financial statements of many of our subsidiaries outside the U.S. are prepared using the local currency as the functional currency. During consolidation, these results are translated into U.S. Dollars by applying appropriate exchange rates. As a result, fluctuations in the exchange rate of the U.S. Dollar relative to the local currencies in which our foreign subsidiaries report could cause significant fluctuations in our reported results. Moreover, as exchange rates vary, revenue and other operating results may differ materially from our expectations. Adjustments resulting from financial statement translations are included as a separate component of shareholders' equity. In the year ended December 29, 2018, we recorded net losses from currency translation adjustments of $27.4 million. In the year ended December 30, 2017, we recorded net gains from currency translation adjustments of $77.1 million;


•	certain contracts, particularly in Canada, are frequently denominated in currencies other than the currency in which we incur expenses related to those contracts, and where expenses are incurred in currencies other than those in which contracts are priced, fluctuations in the relative value of those currencies could have a material adverse effect on our results of operations;


•	potentially negative consequences from changes in U.S. and/or foreign tax laws, or interpretations thereof, notably tax regulations issued and to-be-issued with respect to U.S. Tax Reform and the EU Anti-Tax Avoidance Directives I and II;


•	general economic and political conditions in the markets in which we operate, including possible implications of Brexit;


•	potential international conflicts, including terrorist acts;


•	exchange controls, adverse tax consequences, and legal restrictions on the repatriation of funds into the U.S.;


•	difficulties and costs associated with staffing and managing foreign operations, including risks of work stoppages and/or strikes, as well as violations of local laws or anti-bribery laws such as the U.S. Foreign Corrupt Practices Act (FCPA), the U.K. Bribery Act, and the OECD Convention on Combating Bribery of Foreign Public Officials in International Business Transactions;


•	unexpected changes in regulatory requirements;


•	the difficulties of compliance with a wide variety of foreign laws and regulations;


•	unfavorable labor regulations in foreign jurisdictions;


•	exposure to business disruption or property damage due to geographically unique natural disasters (including within the U.S.);


•	longer accounts receivable cycles in certain foreign countries; and


•	compliance with export controls, import requirements and other trade regulations.

These risks, individually or in the aggregate, could have an adverse effect on our results of operations and financial condition. For example, as mentioned above, we are subject to compliance with the FCPA and similar anti-bribery laws, which generally prohibit companies and their third-party intermediaries from making improper payments to foreign government officials for the purpose of obtaining or retaining business. While our employees, distributors and agents are required to comply with these laws, we cannot be sure that our internal policies and procedures will always protect us from violations of these laws despite our commitment to legal compliance and corporate ethics. The occurrence or allegation of these types of risks may adversely affect our business, performance, prospects, value, financial condition, and results of operations.

Our facilities could be damaged or disrupted by natural disasters or other catastrophic events which could adversely affect our reputation, financial position, results of operations and cash flows.

While we have taken precautions to mitigate production and service interruptions at our global facilities, a major catastrophe, such as a hurricane, tornado, earthquake, flood, wildfire or other natural disaster (or other unanticipated displacement) at or near any of our facilities could result in physical damage to our properties, including closure, resulting in a prolonged interruption of our business. A disruption resulting from any one of these events could cause significant delays in shipments of our products, reduce our capacity to provide services, eradicate unique manufacturing capabilities and, ultimately, result in the loss of revenue and clients. Any of these factors could have a material adverse effect on our reputation, financial position, results of operations, and cash flows.

New technologies may be developed, validated, and increasingly used in biomedical research that could reduce demand for some of our products and services.

The scientific and research communities continue to explore methods to develop improved cellular and animal model systems that would increase the translation to human studies and vice-versa and possibly replace or supplement the use of traditional living animals as test platforms in biomedical research. Some companies have developed techniques in these areas that may have scientific merit to improve translation between species. In addition, technological improvements to existing or new processes, such as imaging and other translational biomarker technologies, could result in the refinement and utility for the number of animal research models necessary to improve the translation from non-clinical to clinical studies. There is an increasing push to focus on in vitro technologies such that employ human biospecimens, stem cell technologies, and genome editing.

It is our strategy to explore these in vitro technologies to refine and potentially reduce the utilization of animal models as these new methods become validated. For example, our Safety and Assessment businesses have a program to evaluate the utility of induced pluripotent stems cells, advanced in vitro models, “organ-on-a-chip” technologies, artificial intelligence and machine learning in preclinical development. Successful commercialization of alternatives to traditional research models may not be sufficient to fully offset reduced sales or profits from research models. In addition, alternative research methods could decrease the need for future research models, and we may not be able to develop new products effectively or in a timely manner to replace any lost sales. Lastly, other companies or entities may develop research models with characteristics different than the ones that we produce, and which may be viewed as more desirable by some of our clients.

Negative attention from special interest groups may impair our business.

The products and services which we provide our clients are essential to the drug discovery, development and manufacturing processes, and a significant amount are mandated by law. Notwithstanding, certain special interest groups categorically object to the use of animals for valid research purposes. Historically, our core research model activities with rats, mice and other rodents have not been the subject of significant animal rights media attention. However, research activities with animals have been the subject of adverse attention, including shareholder proposals and attempts to disrupt air carriers from transporting research models, impacting the industry. This has included periodic demonstrations near facilities operated by us and at our annual meetings, as well as shareholder proposals we received for some of our past Annual Meetings of Shareholders. Any negative attention, threats or acts of vandalism directed against either our animal research activities or our third party service providers, such as our airline carriers, in the future could impair our ability to operate our business efficiently.

Our debt level could adversely affect our business and growth prospects.

As of December 29, 2018, we had $1.7 billion of debt. In connection with our intended acquisition of Citoxlab, we anticipate increasing our debt to finance a substantial portion of the purchase price of approximately €448 million in cash (or approximately $510 million based on current exchange rates). Our debt could have significant adverse effects on our business, including making it more difficult for us to obtain additional financing on favorable terms; requiring us to dedicate a substantial

portion of our cash flows from operations to the repayment of debt and the interest on this debt; limiting our ability to capitalize on significant business opportunities; and making us more vulnerable to rising interest rates. For additional information regarding our debt, please see Note 9, “Long-Term Debt and Capital Lease Obligations”, included in the Notes to Consolidated Financial Statements included elsewhere in this Form 10-K.

The drug discovery, development services and manufacturing support industries are highly competitive.

The drug discovery, non-clinical development, and manufacturing support services industries are highly competitive. We often compete for business not only with other CROs, but also with internal discovery and development departments within our larger clients, who may have greater resources than ours. We also compete with universities and teaching hospitals for outsourced services. We compete on a variety of factors, including:


•	reputation for on-time quality performance;


•	reputation for regulatory compliance;


•	expertise and experience in multiple specialized areas;


•	scope and breadth of service and product offerings across the drug discovery and development spectrum;


•	scope and breadth of service and product offerings across the manufacturing support spectrum;


•	ability to provide flexible and customized solutions to support our clients' drug discovery, non-clinical development, and manufacturing support needs;


•	broad geographic availability (with consistent quality);


•	price/value, spend and flexibility;


•	technological and scientific expertise and efficient drug development processes;


•	quality of facilities;


•	financial stability;


•	size;


•	ability to acquire, process, analyze, and report data in an accurate manner; and


•	accessibility of client data through secure portals.

If we do not compete successfully, our business will suffer. Increased competition might lead to price and other concessions that could adversely affect our operating results. The drug discovery and development services industry has continued to see a trend towards consolidation, particularly among the biotechnology companies, who are targets for each other and for larger pharmaceutical companies. If this trend continues, it is likely to produce more competition among the larger companies and CROs generally, with respect to both clients and acquisition candidates. In addition, small, specialized entities considering entering the CRO industries will continue to find lower barriers to entry, and private equity firms may determine that there are opportunities to acquire and consolidate these companies, thus further increasing possible competition. More generally, our competitors or others might develop technologies, services or products that are more effective or commercially attractive than our current or future technologies, services, or products, or that render our technologies, services, or products less competitive or obsolete. If competitors introduce superior technologies, services, or products and we cannot make enhancements to ours to remain competitive, our competitive position, and in turn our business, revenue, and financial condition, would be materially and adversely affected. In the aggregate, these competitive pressures may affect the attractiveness of our technologies, services, or products and could adversely affect our financial results.

Potential Changes in U.S. and International Tax Law.

On December 22, 2017, President Trump signed into law significant U.S. tax law changes (U.S. Tax Reform) which reduced the U.S. federal statutory tax rate, broadened the corporate tax base through the elimination or reduction of deductions, exclusions, and credits, limited the ability of U.S. corporations to deduct interest expense, and transitioned to a territorial tax system which allows for the repatriation of foreign earnings to the U.S. with a 100% federal dividends received deduction prospectively. In addition, U.S. Tax Reform required a one-time transitional tax on foreign cash equivalents and previously unremitted earnings. Several of the new provisions enacted as part of U.S. Tax Reform require clarification and guidance from the Internal Revenue

Service (IRS) and Treasury Department. These or other changes in U.S. tax laws could impact our profits, effective tax rate, and cash flows.

We have substantial operations in Canada, Ireland and the United Kingdom which currently benefit from favorable corporate tax arrangements. We receive substantial tax credits in Canada, from both the Canadian federal and Quebec governments, and the U.K. Any reduction in the availability or amount of these tax credits or increase to tax rates due to tax law changes or outcomes of tax controversies could have a material adverse effect on our profits, cash flows, and effective tax rate.

The OECD has developed an action plan to address concerns regarding base erosion and profit shifting (BEPS). This initiative resulted in proposed and enacted changes to tax laws in various countries including France, Germany, Luxembourg, Netherlands and the U.K. Future changes to tax laws or interpretation of tax laws resulting from the BEPS project could increase our effective tax rate, which would affect our profitability.

Contract research services create a risk of liability.

As a CRO, we face a range of potential liabilities which may include:


•	errors or omissions in reporting of study detail in non-clinical studies that may lead to inaccurate reports, which may undermine the usefulness of a study or data from the study, or which may potentially advance studies absent the necessary support or inhibit studies from proceeding to the next level of testing;


•	risks associated with our possible failure to properly care for our clients' property, such as research models and samples, study compounds, records, work in progress, other archived materials, or goods and materials in transit, while in our possession;


•	risks that models in our breeding facilities or in facilities that we manage may be infected with diseases that may be harmful and even lethal to them or humans, despite preventive measures contained in our policies for the quarantine and handling of imported animals; and

•

risks that we may have errors and omissions and/or product liabilities related to our products designed to conduct lot release testing of medical devices, injectable drugs, food, beverages, and home and beauty products (primarily through our Microbial Solutions business), or in the testing of biologics and other services performed by our Biologics business, which could result in us or our clients failing to identify unsafe or contaminated materials.

While we attempt to mitigate these risks through a variety of methods, it is impossible to completely eradicate such risks. In our RMS business, we mitigate these risks to the best of our abilities through our regimen of animal testing, quarantine procedures, and veterinary staff vigilance, through which we seek to control the exposure of animal related disease or infections. In our DSA and Manufacturing businesses, we attempt to reduce these risks by contractual risk transfer provisions entitling us to be indemnified by our clients and subject to a limitation of liability, by insurance maintained by our clients and/or by us, and by various regulatory requirements we must follow in connection with our business.

Contractual risk transfer indemnifications generally do not protect us against liability arising from certain of our own actions, such as negligence or misconduct. We could be materially and adversely affected if we are required to pay damages or bear the costs of defending any claim that is outside any contractual indemnification provision, or if a party does not fulfill its indemnification obligations, or the damage is beyond the scope or level of insurance coverage. We also often contractually indemnify our clients (subject to a limitation of liability), similar to the way they indemnify us, and we may be materially adversely affected if we have to fulfill our indemnity obligations. Furthermore, there can be no assurance that neither we nor a party required to indemnify us will be able to maintain such insurance coverage (either at all or on terms acceptable to us).

Upgrading and integrating our business systems could result in implementation issues and business disruptions.

In recent years, we have been updating and consolidating systems and automating processes in many parts of our business with a variety of systems. The expansion and ongoing implementation of the systems may occur at a future date based on value to the business. In general, the process of planning and preparing for these types of integrated, wide-scale implementations is extremely complex and we are required to address a number of challenges including data conversion, system cutover, and user training. Problems in any of these areas could cause operational problems during implementation including delayed shipments, missed sales, billing and accounting errors. There have been numerous, well-publicized instances of companies experiencing difficulties with the implementation of similar large-scale systems, which resulted in negative business consequences.

The drug discovery and development industry has a history of patent and other intellectual property litigation, and we might be involved in costly intellectual property lawsuits.

The drug discovery and development industry has a history of patent and other intellectual property litigation and these lawsuits will likely continue. Legal proceedings relating to intellectual property are expensive, take significant time, and divert management's attention from other business concerns, whether we win or lose. If we do not prevail in an infringement lawsuit brought against us, we might have to pay substantial damages, including treble damages, and we could be required to stop the infringing activity or obtain a license to use technology on unfavorable terms.

We may not be able to successfully develop and market new services and products.

We may seek to develop and market new services and products that complement or expand our existing business or service offerings. We believe our ability to in-license new technologies from third parties will be critical to our ability to offer new products and services to our clients. Our ability to gain access to technologies that we need for new products and services depends, in part, on our ability to convince inventors and their agents or assignees that we can successfully commercialize their inventions. We cannot guarantee that we will be able to identify new technologies of interest to our clients. Even if we are able to identify new technologies of interest, we may not be able to negotiate license agreements on acceptable terms, or at all. If we are unable to develop new services and products and/or create demand for those newly developed services and products, our future business, results of operations, financial condition, and cash flows could be adversely affected.

The decision by British voters to exit the European Union may adversely affect our business.

The U.K. is currently negotiating the terms of its exit from the European Union (“Brexit”) scheduled for March 29, 2019. In November 2018, the U.K. and the European Union agreed upon a draft Withdrawal Agreement that sets out the terms of the U.K.’s departure, including commitments on citizen rights after Brexit, a financial settlement from the U.K., and a transition period from March 29, 2019 through December 31, 2020 to allow time for a future trade deal to be agreed. On January 15, 2019, the draft Withdrawal Agreement was rejected by the U.K. Parliament creating significant uncertainty about the terms (and timing) under which the U.K. will leave the European Union.

Given the uncertainty concerning the terms of the UK’s departure from the EU, including the possibility of no negotiated agreement, we have formed a committee (comprised of senior managers across our business functions) to address the three main risks: (1) trade and customs, (2) employees and immigration, and (3) strategy and business planning.

In the absence of a future trade deal, the U.K.’s trade with the European Union and the rest of the world would be subject to tariffs and duties set by the World Trade Organization. Additionally, the movement of goods between the U.K. and the remaining member states of the European Union will be subject to additional inspections and documentation checks, leading to possible delays at ports of entry and departure. These changes to the trading relationship between the U.K and European Union would likely result in increased cost of goods imported into and exported from the U.K. and may decrease the profitability of our U.K. and other operations. Additional currency volatility could drive a weaker British pound, which increases the cost of goods imported into our U.K. operations and may decrease the profitability of our U.K. operations. A weaker British pound versus the U.S. dollar also causes local currency results of our U.K. operations to be translated into fewer U.S. dollars during a reporting period. Although efforts are being undertaken to mitigate for risks within our control, other factors outside our control could adversely affect our business, business opportunities, results of operations, financial condition and cash flows.

We depend on key personnel and may not be able to retain these employees or recruit additional qualified personnel, which would harm our business.

Our success depends to a significant extent on the continued services of our senior management and other members of management. James C. Foster, our Chief Executive Officer and President since 1992 and Chairman since 2000, has held various positions with us for four decades. While we entered into an employment agreement with Mr. Foster in 2018, most members of our senior management do not have employment agreements. If Mr. Foster or other members of senior management do not continue in their present positions, our business may suffer.

Because of the specialized scientific nature of our business, we are highly dependent upon attracting and retaining qualified scientific, technical, and managerial personnel. While we have a strong record of employee retention, and we strive to reduce the impact of the potential loss of existing employees by having an established organizational talent review process which identifies successors and potential talent needs, there is still significant competition for qualified personnel in the veterinary, pharmaceutical, and biotechnology fields. Therefore, we may not be able to attract and retain the qualified personnel necessary for the development of our business. The loss of the services of existing personnel, as well as the failure to recruit additional key scientific, technical, and managerial personnel in a timely manner, could harm our business.

Our quarterly operating results may vary, which could negatively affect the market price of our common stock.

Our results of operations in any quarter may vary from quarter to quarter and are influenced by such factors as:


•	changes in the general global economy;


•	the number and scope of ongoing client engagements;


•	the commencement, postponement, delay, progress, completion, or cancellation of client contracts in the quarter;


•	changes in the mix of our products and services;


•	competitive pricing pressures;


•	the extent of cost overruns;


•	holiday buying patterns of our clients;


•	budget cycles of our clients;


•	changes in tax laws, rules, regulations, and tax rates in the locations in which we operate;


•	the timing and charges associated with completed acquisitions and other events;


•	the financial performance of our venture capital investments;


•	the occasional extra week (“53^rdweek”) that we recognize in a fiscal year (and fourth fiscal quarter thereof) due to our fiscal year ending on the last Saturday in December; and


•	exchange rate fluctuations.

We believe that operating results for any particular quarter are not necessarily a meaningful indication of future results. Nonetheless, fluctuations in our quarterly operating results could negatively affect the market price of our common stock.

Since we do not expect to pay any cash dividends for the foreseeable future, our shareholders will benefit from an investment in our common stock only if it appreciates in value.

We have not declared or paid any cash dividends on our common stock, and do not anticipate that we will pay any dividends to holders of our common stock for the foreseeable future. Any payment of cash dividends will be at the discretion of our Board of Directors and will depend on our financial condition, capital requirements, legal requirements, earnings and other factors. Consequently, our shareholders should not rely on dividends to receive a return on their investment.

Item 1B. Unresolved Staff Comments

There are no unresolved comments to be reported in response to Item 1B.

Item 2. Properties

We own or lease the land and buildings where we have facilities. We own large facilities (facilities over 50,000 square feet) for our DSA businesses in Canada, France, Ireland, Netherlands, Scotland, and the U.S. and lease large facilities in England and the U.S. We own large RMS facilities in Canada, France, Germany, Italy, Japan, England, and the U.S. We lease large RMS facilities in China. We own large Manufacturing facilities in the U.S. and China. None of our leases is individually material to our business operations. Many of our leases have an option to renew, and we believe that we will be able to successfully renew expiring leases on terms satisfactory to us. We believe that our facilities in each of our reportable segments are adequate for our operations and that suitable additional space will be available when needed. For additional information, see Note 9, “Long-Term Debt and Capital Lease Obligations” and Note 16, “Commitments and Contingencies” included in Item 8, “Financial Statements and Supplementary Data” in this Annual Report on Form 10-K.

We track room utilization on an ongoing basis and depending on the needs of our clients at given times, we may need to execute on contingent plans for expansion, which average between six and fifteen months to complete.

We may also expand at specific sites in order to accommodate needs resulting from any consolidation strategy. We continue to employ a master site planning strategy to proactively evaluate our real estate needs. In certain circumstances, we dispose of or consolidate operations, which could result in impairment charges. In situations where the associated real estate is leased, and depending on the resolution of these situations, we may be encumbered with the remaining real estate lease obligations.

Item 3. Legal Proceedings

We are not party to any material legal proceedings, other than ordinary routine litigation incidental to our business that is not material to our business or financial condition.

Item 4. Mine Safety Disclosures

Not applicable.

PART II

Item 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities

Our common stock began trading on the New York Stock Exchange on June 23, 2000 under the symbol “CRL.” There were no equity securities that were not registered under the Securities Act of 1933, as amended, sold during fiscal year 2018.

Shareholders

As of January 25, 2019, there were 92 registered shareholders of the outstanding shares of common stock.

Issuer Purchases of Equity Securities

The following table provides information relating to our purchases of shares of our common stock during the fourth quarter of fiscal 2018:



	Total Number of Shares Purchased	Average Price Paid per Share		Total Number of Shares Purchased as Part of Publicly Announced Plans or Programs	Approximate Dollar Value of Shares That May Yet Be Purchased Under the Plans or Programs
					(in thousands)
September 30, 2018 to October 27, 2018	173	$	133.55	—	$	129,105
October 28, 2018 to November 24, 2018	46	121.82		—	129,105
November 25, 2018 to December 29, 2018	194	134.85		—	129,105
Total	413			—

In July 2010, our Board of Directors authorized a $500.0 million stock repurchase program, and subsequently approved increases to the program of $250.0 million in fiscal year 2010, $250.0 million in fiscal year 2013, $150.0 million in fiscal year 2014, and $150.0 million in fiscal year 2017, for an aggregate authorization of $1.3 billion. During the fourth quarter of fiscal year 2018, we did not repurchase any shares of common stock under our stock repurchase program or in open market trading. As of December 29, 2018, we had $129.1 million remaining on the authorized stock repurchase program.

Additionally, our stock-based compensation plans permit the netting of common stock upon vesting of restricted stock, restricted stock units, and performance share units in order to satisfy individual statutory tax withholding requirements.

Comparison of 5-Year Cumulative Total Return

The following stock performance graph compares the annual percentage change in the Company’s cumulative total shareholder return on its Common Stock during a period commencing on December 28, 2013 and ending on December 29, 2018 (as measured by dividing (1) the sum of (A) the cumulative amount of dividends for the measurement period, assuming dividend reinvestment, and (B) the difference between the Company’s share price at the end and the beginning of the measurement period; by (2) the share price at the beginning of the measurement period) with the cumulative total return of the S&P 500 Index and the S&P 500 Health Care Index during such period. The Company has not paid any dividends on the Common Stock, and no dividends are included in the representation of the Company’s performance. The stock price performance on the graph below is not necessarily indicative of future price performance. The graph is not “soliciting material,” is not deemed filed with the Securities and Exchange Commission and is not to be incorporated by reference in any filing of the Company under the Securities Act of 1933 or the Securities Exchange Act of 1934 whether made before or after the date hereof and irrespective of any general incorporation language in any such filing. Information used in the graph was obtained from Standards & Poor’s Institutional Market Services, a source believed to be reliable, but the Company is not responsible for any errors or omissions in such information

COMPARISON OF 5-YEAR CUMULATIVE TOTAL RETURN

Among Charles River Laboratories International, Inc., The S&P 500 Index and

The S&P 500 Health Care Index



	Fiscal Year
	2013		2014		2015		2016		2017		2018
Charles River Laboratories International, Inc.	$	100	$	121	$	150	$	143	$	205	$	209
S&P 500	100		114		115		129		157		150
S&P 500 Health Care	100		125		134		130		159		169

Item 6. Selected Consolidated Financial Data

The selected financial data presented below is derived from our audited consolidated financial statements and should be read in conjunction with “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in Item 7 and “Financial Statements and Supplementary Data” contained in Item 8 of this Annual Report on Form 10-K. Our fiscal year is typically based on 52-weeks, with each quarter composed of 13 weeks ending on the last Saturday on, or closest to, March 31, June 30, September 30, and December 31. A 53^rdweek was included in the fourth quarter of fiscal year 2016, which is occasionally necessary to align with a December 31 calendar year-end.



	Fiscal Year
	2018		2017			2016		2015			2014
	(in thousands, except per share amounts)
Statement of Income Data
Total revenue	$	2,266,096	$	1,857,601		$	1,681,432	$	1,363,302		$	1,297,662
Income from continuing operations, net of income taxes	227,218		125,586			156,086		152,037			129,924
Income (loss) from discontinued operations, net of income taxes	1,506		(137		)	280		(950		)	(1,726		)
Common Share Data
Earnings per common share from continuing operations:
Basic	$	4.69	$	2.60		$	3.28	$	3.23		$	2.76
Diluted	$	4.59	$	2.54		$	3.22	$	3.15		$	2.70
Other Data
Depreciation and amortization	$	161,779	$	131,159		$	126,658	$	94,881		$	96,445
Capital expenditures	140,054		82,431			55,288		63,252			56,925
Balance Sheet Data (as of period end)
Cash and cash equivalents	$	195,442	$	163,794		$	117,626	$	117,947		$	160,023
Total assets	3,855,879		2,929,922			2,711,800		2,068,497			1,870,578
Long-term debt, net and capital leases	1,636,598		1,114,105			1,207,696		845,997			740,557
Redeemable noncontrolling interest	18,525		16,609			14,659		28,008			28,419

Refer to Note 2, “Business Acquisitions and Divestiture” included in Item 8, “Financial Statements and Supplementary Data” in this Annual Report on Form 10-K for additional information concerning the impact of our recent acquisitions.

Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations

The following discussion should be read in conjunction with our consolidated financial statements and related notes appearing in Item 8, “Financial Statements and Supplementary Data” in this Annual Report on Form 10-K. The following discussion contains forward-looking statements. Actual results may differ significantly from those projected in the forward-looking statements. Factors that might cause future results to differ materially from those projected in the forward-looking statements include, but are not limited to, those discussed in Item 1A, “Risk Factors” and elsewhere in this Annual Report on Form 10-K. Certain percentage changes may not recalculate due to rounding.

Overview

We are a full service, early-stage contract research organization (CRO). For over 70 years, we have been in the business of providing the research models required in research and development of new drugs, devices, and therapies. Over this time, we have built upon our original core competency of laboratory animal medicine and science (research model technologies) to develop a diverse portfolio of discovery and safety assessment services, both Good Laboratory Practice (GLP) and non-GLP, that enable us to support our clients from target identification through non-clinical development. We also provide a suite of products and services to support our clients’ manufacturing activities. Utilizing our broad portfolio of products and services enables our clients to create a more flexible drug development model, which reduces their costs, enhances their productivity and effectiveness, and increases speed to market.

Our client base includes all major global biopharmaceutical companies, many biotechnology companies, CROs, agricultural and industrial chemical companies, life science companies, veterinary medicine companies, contract manufacturing companies, medical device companies, and diagnostic and other commercial entities, as well as leading hospitals, academic institutions, and government agencies around the world. We currently operate in over 80 facilities and in approximately 20 countries worldwide, which numbers exclude our Insourcing Solutions (IS) sites.

Segment Reporting

Our three reportable segments are Research Models and Services (RMS), Discovery and Safety Assessment (DSA), and Manufacturing Support (Manufacturing). Our RMS reportable segment includes the Research Models and Research Model Services businesses. Research Models includes the commercial production and sale of small research models, as well as the supply of large research models. Research Model Services includes: Genetically Engineered Models and Services (GEMS), which performs contract breeding and other services associated with genetically engineered research models; Research Animal Diagnostic Services (RADS), which provides health monitoring and diagnostics services related to research models; and Insourcing Solutions (IS), which provides colony management of our clients’ research operations (including recruitment, training, staffing, and management services). Our DSA reportable segment includes services required to take a drug through the early development process including discovery services, which are non-regulated services to assist clients with the identification, screening, and selection of a lead compound for drug development, and regulated and non-regulated (GLP and non-GLP) safety assessment services. Our Manufacturing reportable segment includes Microbial Solutions, which provides in vitro (non-animal) lot-release testing products, microbial detection products, and species identification services; Biologics Testing Services (Biologics), which performs specialized testing of biologics; Avian Vaccine Services (Avian), which supplies specific-pathogen-free chicken eggs and chickens; and contract development and manufacturing (CDMO) services, which, until we divested this business on February 10, 2017, allowed us to provide formulation design and development, manufacturing, and analytical and stability testing for small molecules.

Recent Acquisitions and Divestiture

Our strategy is to augment internal growth of existing businesses with complementary acquisitions. We continued to make strategic acquisitions designed to expand our portfolio of services to support the drug discovery and development continuum and position us as a market leader in the outsourced discovery services market. Our recent acquisitions and divestiture are described below.

On February 13, 2019, we announced that we signed a binding offer to acquire Citoxlab for €448 million in cash (or approximately $510 million based on current exchange rates), subject to customary closing adjustments. Citoxlab is a non-clinical CRO, specializing in regulated safety assessment services, non-regulated discovery services, and medical device testing. With operations in Europe and North America, the proposed acquisition of Citoxlab would further strengthen our position as the leading, global, early-stage CRO by expanding our scientific portfolio and geographic footprint, which would enhance our ability to partner with clients across the drug discovery and development continuum. The proposed transaction is expected to close in the second quarter of 2019, subject to labor consultations, regulatory requirements, and customary closing

conditions. Upon completion of the labor consultations, Citoxlab’s shareholders are expected to enter into a definitive purchase agreement. The proposed acquisition and associated fees are expected to be financed through our existing revolving credit facility and cash. In the event the agreement is terminated under specified circumstances, we may be required to pay a termination fee of €18.2 million. This business is expected to be reported as part of our DSA reportable segment.

On April 3, 2018, we acquired MPI Research, a non-clinical CRO providing comprehensive testing services to biopharmaceutical and medical device companies worldwide. The acquisition enhances our position as a leading global early-stage CRO by strengthening our ability to partner with clients across the drug discovery and development continuum. The purchase price for MPI Research was $829.7 million in cash, subject to certain post-closing adjustments. The acquisition was funded by borrowings on our $2.3 billion credit facility ($2.3B Credit Facility) as well as the issuance of $500.0 million of our senior notes. The MPI Research business is reported as part of our DSA reportable segment.

On January 11, 2018, we acquired KWS BioTest Limited (KWS BioTest), a CRO specializing in in vitro and in vivo discovery testing services for immuno-oncology, inflammatory and infectious diseases. The acquisition enhances our discovery expertise, with complementary offerings that provide our customers with additional tools in the active therapeutic research areas of oncology and immunology. The purchase price for KWS BioTest was $20.3 million in cash, subject to certain post-closing adjustments. In addition to the initial purchase price, the transaction includes aggregate, undiscounted contingent payments of up to £3.0 million (approximately $3.8 million based on recent exchange rates), based on future performance. During the three months ended September 29, 2018, the terms of these contingent payments were amended, resulting in a fixed payment of £2.0 million (approximately $2.5 million based on recent exchange rates), due in the first quarter of fiscal year 2019. The KWS BioTest business is reported as part of our DSA reportable segment.

On August 4, 2017, we acquired Brains On-Line, a leading CRO providing critical data that advances novel therapeutics for the treatment of central nervous system (CNS) diseases. Brains On-Line strategically expands our existing CNS capabilities and establishes us as a single-source provider for a broad portfolio of discovery CNS services. The purchase price for Brains On-Line was $21.3 million in cash. In addition to the initial purchase price, the transaction includes aggregate, undiscounted contingent payments of up to €6.7 million (approximately $7.7 million based on recent exchange rates), based on future performance and due in the first quarter of fiscal year 2019 if achieved. The Brains On-Line business is reported as part of our DSA reportable segment.

On February 10, 2017, we completed the divestiture of our CDMO business to Quotient Clinical Ltd., based in London, England for $75.0 million in proceeds, net of cash, cash equivalents, and working capital adjustments. The CDMO business was acquired in April 2016 as part of the acquisition of WIL Research and was reported in our Manufacturing reportable segment.

Fiscal Quarters

Our fiscal year is typically based on 52-weeks, with each quarter composed of 13 weeks ending on the last Saturday on, or closest to, March 31, June 30, September 30, and December 31. A 53^rdweek was included in the fourth quarter of fiscal year 2016, which is occasionally necessary to align with a December 31 calendar year-end.

Business Trends

The demand for our products and services increased meaningfully in fiscal year 2018. Our pharmaceutical and biotechnology clients continued to intensify their use of strategic outsourcing to improve their operating efficiency and to access capabilities that they do not maintain internally. Many of our large biopharmaceutical clients have continued to increase investments in their drug discovery and early-stage development efforts and have strengthened their relationships with both CROs, like Charles River, and biotechnology companies to assist them in bringing new drugs to market. In addition, small and mid-size biopharmaceutical clients benefited from the continued strength in the biotechnology funding environment in fiscal year 2018, from capital markets, partnering with large biopharmaceutical companies, and investment by venture capital. Our full service, early-stage portfolio continued to lead to additional client discussions and new business opportunities in fiscal year 2018, as clients seek to outsource larger portions of their early-stage drug research programs to us.

The primary result of these trends was robust demand for our Safety Assessment services in fiscal year 2018, particularly from biotechnology clients. As a result of this improvement, our Safety Assessment facilities remained well utilized in fiscal year 2018. In order to accommodate increasing client demand, we continued to open modest amounts of capacity at legacy sites, and gained additional capacity through the acquisition of MPI Research in April 2018. Price also improved slightly in fiscal year 2018, as we believe industry capacity utilization continued to increase, as well. We believe our scientific expertise, quality, and responsiveness remain key criteria when our clients make the decision to outsource to us. As our clients continue to pursue their

goal of more efficient and effective drug research, they are evaluating outsourcing new areas of their research programs, such as discovery services. We have enhanced our Discovery Services capabilities over the past five years to enable us to work with clients at the earliest stages of the discovery process. In fiscal year 2018, demand in our Discovery Services business also increased meaningfully, driven by biotechnology clients as many of these clients either initiated or continued to work with us on integrated programs and other projects. Our efforts to enhance our sales strategies and become a trusted scientific partner for our clients’ early-stage programs have been successful, and enabled us to attract new clients for our early discovery services, including a growing base of biotechnology clients. Demand from large biopharmaceutical companies also increased. These clients continue to have significant internal discovery capabilities, on which they can choose to rely. In order for large biopharmaceutical clients to increasingly outsource more work to us, we must continue to demonstrate that our services can augment and accelerate our clients’ drug discovery processes. Demand for our in vivo discovery services continued to increase in fiscal year 2018, and we acquired KWS BioTest in January 2018 to enhance our discovery expertise and provide immuno-oncology capabilities to our clients.

Demand for our products and services that support our clients’ manufacturing activities was also robust in fiscal year 2018. Demand for our Microbial Solutions business remained strong as manufacturers continued to increase their use of our rapid microbial testing solutions. Our Biologics business continued to benefit from increased demand for services associated with the growing proportion of biologic drugs in the pipeline and on the market. To support this increased demand, we continue to expand the capacity of our Biologics business.

Demand for our Research Models and Services increased in fiscal year 2018, driven by strong demand for research models in China, higher revenue for research model services, and improved pricing. Demand for research models in China continued to be robust in fiscal year 2018, as clients in this growing market continue to value our high-quality research models and we expanded our geographic footprint. Demand for research models services also improved in fiscal year 2018, particularly for our IS and GEMS businesses. The IS business further benefited from being awarded a five-year, $95.7 million contract from the National Institute of Allergy and Infectious Diseases, or NIAID, which commenced in September 2018. The continued effect of the consolidation of internal infrastructure within our large biopharmaceutical clients and a longer-term trend towards more efficient use of research models has led to reduced demand for research models outside of China. We are confident that research models and services will remain essential tools for our clients’ drug discovery and early-stage development efforts, and the RMS business will continue to be an important source of cash flow generation for us.

Overview of Results of Operations and Liquidity

Revenue for fiscal year 2018 was $2.3 billion compared to $1.9 billion in fiscal year 2017. The 2018 increase as compared to the corresponding period in 2017 was $408.5 million, or 22.0%, and was primarily due to both growth in our DSA and Manufacturing segments, as discussed in the above “Business Trends” section, as well as the recent acquisitions of MPI Research, KWS BioTest, and Brains On-Line. The positive effect of changes in foreign currency exchange rates increased revenue by $23.7 million, or 1.3%, when compared to the corresponding period in 2017.

In fiscal year 2018, our operating income and operating income margin were $331.4 million and 14.6%, respectively, compared with $288.3 million and 15.5%, respectively, in fiscal year 2017. The increase in operating income was primarily due to our recent acquisitions and increased demand from biotechnology and global biopharmaceutical clients. The decrease in operating income margin was primarily due to increased amortization expense and costs related to our recent acquisitions; as well as continued investments to support future growth of the Company, which includes increased investments in personnel (staffing levels and hourly wage increase), facility expansions (primarily in the RMS, Microbial Solutions, and Biologics businesses), and company-wide IT and infrastructure projects. Offsetting the decreases in operating income margin were the realization of improved volume, mix, and pricing across our products and services portfolio as well as the impact of recent productivity initiatives across all businesses.

Net income attributable to common shareholders increased to $226.4 million in fiscal year 2018, from $123.4 million in the corresponding period of 2017. The increase in net income attributable to common shareholders of $103.0 million was primarily due to the increase in operating income discussed above and a lower effective tax rate driven primarily by net benefits of U.S. Tax Reform; partially offset by lower gains on our venture capital and life insurance policy investments, higher interest expense related to higher debt balances to support our recent acquisitions, and the absence of a gain recorded in other income, net on the CDMO divestiture in 2017.

During fiscal year 2018, our cash flows from operations was $441.1 million compared with $318.1 million for fiscal year 2017. The increase was primarily driven by an increase in income from continuing operations and positive changes in operating assets

and liabilities resulting from an increase in our deferred revenue and customer contract deposits as well as improved collections of our receivables.

On March 26, 2018, we amended and restated our credit facility creating a $2.3B Credit Facility. The $2.3B Credit Facility provides for a $750.0 million term loan and a $1.55 billion multi-currency revolving facility. The term loan facility matures in 19 quarterly installments with the last installment due March 26, 2023. The revolving facility matures on March 26, 2023, and requires no scheduled payment before that date. Under specified circumstances, we have the ability to increase the term loan and/or revolving facility by up to $1.0 billion in the aggregate.

On April 3, 2018, we issued $500.0 million of 5.5% Senior Notes (Senior Notes) due in 2026 in an unregistered offering. Interest on the Senior Notes is payable semi-annually on April 1 and October 1 of each year, beginning on October 1, 2018.

Critical Accounting Policies and Estimates

Our discussion and analysis of our financial condition and results of operations is based upon our consolidated financial statements prepared in accordance with generally accepted accounting principles in the United States (U.S.). The preparation of these financial statements requires us to make certain estimates and assumptions that may affect the reported amounts of assets and liabilities, the reported amounts of revenues and expenses during the reported periods and related disclosures. These estimates and assumptions are monitored and analyzed by us for changes in facts and circumstances, and material changes in these estimates could occur in the future. We base our estimates on our historical experience, trends in the industry, and various other factors that are believed to be reasonable under the circumstances. Actual results may differ from our estimates under different assumptions or conditions.

We believe that the application of our accounting policies, each of which require significant judgments and estimates on the part of management, are the most critical to aid in fully understanding and evaluating our reported financial results. Our significant accounting policies are more fully described in Note 1, “Description of Business and Summary of Significant Accounting Policies”, to our consolidated financial statements contained in Item 8, “Financial Statements and Supplementary Data” in this Annual Report on Form 10-K.

We believe the following represent our critical accounting policies and estimates used in the preparation of our financial statements:

Revenue Recognition

Revenue is recognized when, or as, obligations under the terms of a contract are satisfied, which occurs when control of the promised products or services is transferred to customers. Revenue is measured as the amount of consideration we expect to receive in exchange for transferring products or services to a customer (“transaction price”).

To the extent the transaction price includes variable consideration, we estimate the amount of variable consideration that should be included in the transaction price utilizing the amount to which we expect to be entitled. Variable consideration is included in the transaction price if, in our judgment, it is probable that a significant future reversal of cumulative revenue under the contract will not occur. Estimates of variable consideration and determination of whether to include estimated amounts in the transaction price are based largely on an assessment of our anticipated performance and all information (historical, current and forecasted) that is reasonably available. Sales, value add, and other taxes collected on behalf of third parties are excluded from revenue.

When determining the transaction price of a contract, an adjustment is made if payment from a customer occurs either significantly before or significantly after performance, resulting in a significant financing component. Generally, we do not extend payment terms beyond one year. Applying the practical expedient, we do not assess whether a significant financing component exists if the period between when we perform our obligations under the contract and when the customer pays is one year or less. None of our contracts contained a significant financing component during fiscal year 2018.

Contracts with customers may contain multiple performance obligations. For such arrangements, the transaction price is allocated to each performance obligation based on the estimated relative standalone selling prices of the promised products or services underlying each performance obligation. We determine standalone selling prices based on the price at which the performance obligation is sold separately. If the standalone selling price is not observable through past transactions, we estimate the standalone selling price taking into account available information such as market conditions and internally approved pricing guidelines related to the performance obligations.

Contracts are often modified to account for changes in contract specifications and requirements. Contract modifications exist when the modification either creates new, or changes existing, enforceable rights and obligations. Generally, when contract modifications create new performance obligations, the modification is considered to be a separate contract and revenue is

recognized prospectively. When contract modifications change existing performance obligations, the existing transaction price and measure of progress for the performance obligation to which it relates is generally recognized as an adjustment to revenue (either as an increase in or a reduction of revenue) on a cumulative catch-up basis.

Product revenue is generally recognized when the customer obtains control of our product, which occurs at a point in time, and may be upon shipment or upon delivery based on the contractual shipping terms of a contract. Service revenue is generally recognized over time as the services are delivered to the customer based on the extent of progress towards completion of the performance obligation. The selection of the method to measure progress towards completion requires judgment and is based on the nature of the products or services to be provided. Depending on which better depicts the transfer of value to the customer, we generally measure our progress using either cost-to-cost (input method) or right-to-invoice (output method). We use the cost-to-cost measure of progress when it best depicts the transfer of value to the customer which occurs as we incur costs on our contract, generally related to fixed fee service contracts. Under the cost-to-cost measure of progress, the extent of progress towards completion is measured based on the ratio of costs incurred to date to the total estimated costs at completion of the performance obligation. The costs calculation includes variables such as labor hours, allocation of overhead costs, research model costs, and subcontractor costs. Revenue is recorded proportionally as costs are incurred. The right-to-invoice measure of progress is generally related to rate per unit contracts, as the extent of progress towards completion is measured based on discrete service or time-based increments, such as samples tested or labor hours incurred. Revenue is recorded in the amount invoiced since that amount corresponds directly to the value of our performance to date.

Accounting Standard Codification Topic 606, “Revenue from Contracts with Customers” (ASC 606) became effective for us on December 31, 2017 and was adopted using the modified retrospective method for all contracts not completed as of the date of adoption. For contracts that were modified before the effective date, we reflected the aggregate effect of all modifications when identifying performance obligations and allocating transaction price in accordance with the practical expedient, which did not have a material effect on the cumulative impact of adopting ASC 606. The reported results for fiscal year 2018 reflect the application of ASC 606 guidance while the historical results for fiscal years 2017 and 2016 were prepared under the guidance of ASC 605, “Revenue Recognition” (ASC 605).

The cumulative effect of applying ASC 606 to all contracts with customers that were not completed as of December 30, 2017 was immaterial. There is no material difference in the reporting of revenue during fiscal year 2018 in accordance with ASC 606 when compared to ASC 605.

Income Taxes

We prepare and file income tax returns based on our interpretation of each jurisdiction’s tax laws and regulations. In preparing our consolidated financial statements, we estimate our income tax liability in each of the jurisdictions in which we operate by estimating our actual current tax expense together with assessing temporary differences resulting from differing treatment of items for tax and financial reporting purposes. These differences result in deferred tax assets and liabilities, which are included in our consolidated balance sheets. Significant management judgment is required in assessing the realizability of our deferred tax assets. In performing this assessment, we consider whether it is more likely than not that some portion or all of the deferred tax assets will not be realized. The ultimate realization of deferred tax assets is dependent upon the generation of future taxable income during the periods in which those temporary differences become deductible. In making this determination, under the applicable financial accounting standards, we are allowed to consider the scheduled reversal of deferred tax liabilities, projected future taxable income, and the effects of tax planning strategies. In the event that actual results differ from our estimates, we adjust our estimates in future periods and we may need to establish a valuation allowance, which could materially impact our financial position and results of operations.

We account for uncertain tax positions using a “more-likely-than-not” threshold for recognizing and resolving uncertain tax positions. We evaluate uncertain tax positions on a quarterly basis and consider various factors, that include, but are not limited to, changes in tax law, the measurement of tax positions taken or expected to be taken in tax returns, the effective settlement of matters subject to audit, information obtained during in process audit activities and changes in facts or circumstances related to a tax position. We adjust the level of the liability to reflect any subsequent changes in the relevant facts surrounding the uncertain positions. Our liabilities for uncertain tax positions can be relieved only if the contingency becomes legally extinguished through either payment to the taxing authority or the expiration of the statute of limitations, the recognition of the benefits associated with the position meet the “more-likely-than-not” threshold or the liability becomes effectively settled through the controversy process. We consider matters to be effectively settled once the taxing authority has completed all of its required or expected examination procedures, including all appeals and administrative reviews; we have no plans to appeal or litigate any aspect of the tax position; and we believe that it is highly unlikely that the taxing authority would re-examine the

related tax position. We also accrue for potential interest and penalties related to unrecognized tax benefits in income tax expense.

On December 22, 2017, the U.S. government enacted comprehensive tax legislation commonly referred to as U.S. Tax Reform. U.S. Tax Reform makes broad and complex changes to the U.S. tax code, including, but not limited to, (i) reducing the U.S. federal statutory tax rate from 35% to 21%; (ii) requiring companies to pay a one-time transition tax (Transition Tax) on certain unrepatriated earnings of foreign subsidiaries; (iii) generally eliminating U.S federal income taxes on dividends from foreign subsidiaries; (iv) requiring a current inclusion in U.S. federal taxable income of certain earnings of controlled foreign corporations; (v) eliminating the corporate alternative minimum tax (AMT) and changing how existing AMT credits can be realized; (vi) subjecting certain foreign earnings to U.S. taxation through base erosion anti-abuse tax (BEAT) and global intangible low-taxed income (GILTI); (vii) creating a new limitation on deductible interest expense; (viii) changing rules related to uses and limitations of net operating loss carryforwards created in tax years beginning after December 31, 2017, and (ix) modifying the officer’s compensation limitation.

Our accounting for the elements of U.S. Tax Reform is complete. We have made an accounting policy election to treat taxes due on the GILTI inclusion as a current period expense. See Note 11, “Income Taxes” for further discussion.

In March 2018, the Financial Accounting Standards Board (FASB) issued Accounting Standards Update (ASU) 2018-05, “Income Taxes (Topic 740) - Amendments to SEC Paragraphs Pursuant to SEC Staff Accounting Bulletin No. 118 (SAB 118).” This standard amends Accounting Standards Codification 740, Income Taxes (ASC 740) to provide guidance on accounting for the tax effects of U.S. Tax Reform pursuant to SAB 118, which allows companies to complete the accounting under ASC 740 within a one-year measurement period from the enactment date of U.S. Tax Reform. This standard is effective upon issuance and we have complied with the amendments.

In February 2018, the FASB issued ASU 2018-02, “Income Statement - Reporting Comprehensive Income (Topic 220) Reclassification of Certain Tax Effects from Accumulated Other Comprehensive Income.” The standard allows for reclassification from accumulated other comprehensive income to retained earnings for the stranded tax effects arising from the change in the reduction of the U.S. federal statutory income tax rate to 21% from 35%. We elected to early adopt this standard in fiscal year 2018 as permitted on a prospective basis, resulting in a reclassification of $3.3 million from Accumulated other comprehensive income to Retained earnings as a result of remeasuring our deferred tax liabilities related to our pension and other post-retirement benefit plan gains and losses. Our policy is to release material stranded tax effects on a specific identification basis.

Goodwill and Intangible Assets

We use assumptions and estimates in determining the fair value of assets acquired and liabilities assumed in a business combination. The determination of the fair value of intangible assets, which represent a significant portion of the purchase price in many of our acquisitions, requires the use of significant judgment with regard to (i) the fair value; and (ii) whether such intangibles are amortizable or non-amortizable and, if the former, the period and the method by which the intangible asset will be amortized. We utilize commonly accepted valuation techniques, such as the income approach and the cost approach, as appropriate, in establishing the fair value of intangible assets. Typically, key assumptions include projections of cash flows that arise from identifiable intangible assets of acquired businesses as well as discount rates based on an analysis of our weighted average cost of capital, adjusted for specific risks associated with the assets.

We review definite-lived intangible assets for impairment when indication of potential impairment exists, such as a significant reduction in cash flows associated with the assets. Actual cash flows arising from a particular intangible asset could vary from projected cash flows which could imply different carrying values from those established at the dates of acquisition and which could result in impairment of such asset.

We evaluate goodwill for impairment annually, during the fourth quarter, and when events occur or circumstances change that may reduce the fair value of the asset below its carrying amount. Events or circumstances that might require an interim evaluation include unexpected adverse business conditions, economic factors, unanticipated technological changes or competitive activities, loss of key personnel and acts by governments and courts. Estimates of future cash flows require assumptions related to revenue and operating income growth, asset-related expenditures, working capital levels and other factors. Different assumptions from those made in our analysis could materially affect projected cash flows and our evaluation of goodwill for impairment.

We have the option to first assess qualitative factors to determine whether it is necessary to perform the two-step goodwill impairment test. If we elect this option and believe, as a result of the qualitative assessment, that it is more-likely-than-not that

the carrying value of goodwill is not recoverable, the quantitative two-step impairment test is required; otherwise, no further testing is required. Alternatively, we may elect to not first assess qualitative factors and immediately perform the quantitative two-step impairment test. In the first step, we compare the fair value of our reporting units to their carrying values. If the carrying values of the net assets assigned to the reporting units exceed the fair values of the reporting units, then the second step of the impairment test is performed in order to determine the implied fair value of our goodwill. If the carrying value of the reporting unit’s goodwill exceeds its implied fair value, then we would record an impairment loss equal to the difference.

In fiscal years 2018, 2017 and 2016, we elected to perform the quantitative first step of the two-step goodwill impairment test for our reporting units. Fair value was determined by using a weighted combination of a market-based approach and an income approach, as this combination was deemed to be the most indicative of our fair value in an orderly transaction between market participants. Under the market-based approach, we utilized information about our Company as well as publicly available industry information to determine earnings multiples and sales multiples that are used to value our reporting units. Under the income approach, we determined fair value based on the estimated future cash flows of each reporting unit, discounted by an estimated weighted-average cost of capital, which reflects the overall level of inherent risk of the reporting unit and the rate of return an outside investor would expect to earn.

Our 2018, 2017 and 2016 impairment tests indicated that goodwill was not impaired.

Valuation and Impairment of Long-Lived Assets

Long-lived assets to be held and used, including property, plant, and equipment, are reviewed for impairment whenever events or changes in circumstances indicate that the carrying amount of the assets or asset group may not be recoverable. Factors we consider important which could trigger an impairment review include, but are not limited to, the following:


•	significant underperformance relative to expected historical or projected future operating results;


•	significant negative industry or economic trends; or


•	significant changes or developments in strategy or operations that negatively affect the utilization of our long-lived assets.

Determination of recoverability is based on an estimate of undiscounted future cash flows resulting from the use of the asset, net of any sublease income, if applicable, and its eventual disposition. In the event that such cash flows are not expected to be sufficient to recover the carrying amount of the assets, the assets are written-down to their fair values. We measure any impairment based on a projected discounted cash flow method using a discount rate determined by management to be commensurate with the risk inherent in our current business model. Significant judgments are required to estimate future cash flows, including the selection of appropriate discount rates and other assumptions. We may also estimate fair value based on market prices for similar assets, as appropriate. Changes in these estimates and assumptions could materially affect the determination of fair value for these assets.

In fiscal 2017, we recognized $17.7 million of asset impairment and accelerated depreciation charges on the RMS facility in Frederick, Maryland in connection with our global RMS restructuring initiatives.

Pension and Other Post-Retirement Benefit Plans

Several of our U.S. and non-U.S. subsidiaries sponsor defined benefit pension and other post-retirement benefit plans. We recognize the funded status of our defined benefit pension and other postretirement benefit plans as an asset or liability. This amount is defined as the difference between the fair value of plan assets and the benefit obligation. We measure plan assets and benefit obligations as of the date of our fiscal year end.

The cost and obligations of these arrangements are calculated using many assumptions to estimate the benefits that the employee earns while working, the amount of which cannot be completely determined until the benefit payments cease. Major assumptions used in the accounting for these employee benefit plans include the expected return on plan assets, withdrawal and mortality rates, discount rate, and rate of increase in employee compensation levels. Assumptions are determined based on our data and appropriate market indicators, and are evaluated each year as of the plans’ measurement date. Should any of these assumptions change, they would have an effect on net periodic pension costs and the unfunded benefit obligation.

The expected long-term rate of return on plan assets reflects the average rate of earnings expected on the funds invested, or to be invested, to provide for the benefits included in the projected benefit obligations. In determining the expected long-term rate of return on plan assets, we consider the relative weighting of plan assets, the historical performance of total plan assets and individual asset classes and economic and other indicators of future performance.

The discount rate reflects the rate we would have to pay to purchase high-quality investments that would provide cash sufficient to settle our current pension obligations. A 25 basis point change in the discount rate changes the projected benefit obligation by approximately $16 million to $17 million for all our plans.

The rate of compensation increase reflects the expected annual salary increases for the plan participants based on historical experience and the current employee compensation strategy.

In fiscal year 2018, new mortality improvement scales were issued in the U.S. and U.K reflecting a decline in longevity projection from the 2017 releases that we adopted, which decreased our benefit obligations by $1.7 million as of December 29, 2018. In fiscal year 2017, new mortality improvement scales were issued in the U.S. and U.K. reflecting a decline in longevity projection from the 2016 releases that we adopted, which decreased our benefit obligations by $5.2 million as of December 30, 2017.

On January 31, 2019, we commenced the process to terminate The Charles River Laboratories, Inc. Pension Plan (U.S. Pension Plan) and expect to complete the termination process over the next two years. As part of the planned termination, we re-balanced assets to a target asset allocation of 100% fixed income investments. The change in U.S. Pension Plan investments is intended to provide for a better matching of assets to the characteristics of the liabilities. We intend to take further actions to reduce the volatility of the value of pension assets relative to pension liabilities and to settle remaining liabilities. This includes making such contributions to the U.S. Pension Plan as may be necessary to settle all liabilities, including making lump sum distributions to U.S. Pension Plan participants and purchasing annuity contracts to cover vested benefits for participants who decline to elect a lump sum distribution.

Stock-Based Compensation

We grant stock options, restricted stock, restricted stock units (RSUs), and performance share units (PSUs) to employees, and stock options, restricted stock, and RSUs to non-employee directors under stock-based compensation plans. We make certain assumptions in order to value and record expense associated with awards made under our stock-based compensation arrangements. Changes in these assumptions may lead to variability with respect to the timing and amount of expense we recognize in connection with share-based payments. Stock-based compensation is recognized as an expense in the consolidated statements of income based on the grant date fair value, adjusted for forfeitures when they occur, over the requisite service period.

Determining the appropriate valuation model and related assumptions requires judgment. The fair value of stock options granted is calculated using the Black-Scholes option-pricing model and the fair value of PSUs is estimated using a lattice model with a Monte Carlo simulation, both of which require the use of subjective assumptions including volatility and expected term, among others.

Determining the appropriate amount to expense based on the anticipated achievement of PSU’s performance targets requires judgment, including forecasting the achievement of future financial targets. The estimate of expense is revised periodically based on the probability of achieving the required performance targets. The cumulative impact of any changes to our estimates is reflected in the period of change.

New Accounting Pronouncements

For a discussion of new accounting pronouncements, refer to Note 1, “Description of Business and Summary of Significant Accounting Policies” to our consolidated financial statements contained in Item 8, “Financial Statements and Supplementary Data,” in this Annual Report on Form 10-K.

Results of Operations

Fiscal Year 2018 Compared to Fiscal Year 2017

Revenue and Operating Income

The following tables present consolidated revenue by type and by reportable segment:



	Fiscal Year
	2018		2017		$ change		% change
	(in millions, except percentages)
Service revenue	$	1,687.9	$	1,298.3	$	389.6	30.0	%
Product revenue	578.2		559.3		18.9		3.4	%
Total revenue	$	2,266.1	$	1,857.6	$	408.5	22.0	%



	Fiscal Year
	2018		2017		$ change		% change		Impact of FX
	(in millions, except percentages)
RMS	$	519.7	$	493.6	$	26.1	5.3	%	1.6	%
DSA	1,316.9		980.0		336.9		34.4	%	1.1	%
Manufacturing	429.5		384.0		45.5		11.9	%	1.4	%
Total revenue	$	2,266.1	$	1,857.6	$	408.5	22.0	%	1.3	%

The following table presents operating income by reportable segment:



	Fiscal Year
	2018			2017			$ change			% change
	(in millions, except percentages)
RMS	$	136.5		$	114.6		$	21.9		19.1	%
DSA	227.6			182.8			44.8			24.5	%
Manufacturing	136.2			123.9			12.3			9.9	%
Unallocated corporate	(168.9		)	(133.0		)	(35.9		)	27.0	%
Total operating income	$	331.4		$	288.3		$	43.1		15.0	%

The following presents the results from operating income by each of our reportable segments:

RMS



	Fiscal Year
	2018			2017			$ change			% change		Impact of FX
	(in millions, except percentages)
Revenue	$	519.7		$	493.6		$	26.1		5.3	%	1.6	%
Cost of revenue (excluding amortization of intangible assets)	319.8			317.1			2.7			0.9	%
Selling, general and administrative	61.8			60.2			1.6			2.7	%
Amortization of intangible assets	1.6			1.7			(0.1		)	(5.4	)%
Operating income	$	136.5		$	114.6		$	21.9		19.1	%
Operating income % of revenue	26.3		%	23.2		%				3.1	%

RMS revenue increased $26.1 million due primarily to higher research model product revenue in China and higher revenue for research model services. Research model services benefited from a large government contract in the IS business and strong client demand in the GEMS business resulting from increased research and development activity conducted across biotechnology, global biopharmaceutical, and academic institutional clients, and the effect of changes in foreign currency exchange rates; partially offset by lower research model product revenue outside of China.

RMS operating income increased $21.9 million compared to the corresponding period in 2017. RMS operating income as a percentage of revenue for fiscal year 2018 was 26.3%, an increase of 3.1% from 23.2% for the corresponding period in 2017. Operating income and operating income as a percentage of revenue increased due primarily to lower amount of costs associated

with the realignment of our research model production site in Maryland in 2018 compared to 2017. Restructuring costs (recorded primarily within cost of revenue) incurred during 2017 were $18.1 million, which primarily related to non-cash asset impairments and accelerated depreciation charges. Restructuring costs incurred during 2018 were $2.0 million, which primarily related to cash payments for severance and transition costs. Additionally, operating income and operating income as a percentage of revenue increased due to the increased revenue discussed above; partially offset by continued investments to support future growth, including increased investments in personnel (staffing levels and hourly wage increases), and facility expansions (primarily in China) as well as lower operating income margins on the aforementioned large government contract.

DSA



	Fiscal Year
	2018			2017			$ change		% change		Impact of FX
	(in millions, except percentages)
Revenue	$	1,316.9		$	980.0		$	336.9	34.4	%	1.1	%
Cost of revenue (excluding amortization of intangible assets)	903.9			661.7			242.2		36.6	%
Selling, general and administrative	131.2			105.6			25.6		24.3	%
Amortization of intangible assets	54.2			29.9			24.3		81.4	%
Operating income	$	227.6		$	182.8		$	44.8	24.5	%
Operating income % of revenue	17.3		%	18.7		%			(1.4	)%

DSA revenue increased $336.9 million due primarily to the recent acquisitions of MPI Research, KWS BioTest, and Brains On-Line, which contributed $209.5 million, $8.6 million and $6.0 million to service revenue growth, respectively. Additionally, service revenue increased in both the Safety Assessment and Discovery Services businesses due to demand from both biotechnology and global biopharmaceutical clients and favorable pricing and mix of services. The effect of changes in foreign currency exchange rates also increased revenue.

DSA operating income increased $44.8 million compared to the corresponding period in 2017. DSA operating income as a percentage of revenue for fiscal year 2018 was 17.3%, a decrease of 1.4% from 18.7% for the corresponding period in 2017. The increase to operating income was primarily attributable to contributions from recent acquisitions of MPI Research, KWS BioTest, and Brains On-Line. These increases were partially offset by increased costs to support the growth of the Company, which include costs due to the acquisitions, including a higher service cost base, an increase in compensation, benefits, and other employee-related expenses recorded within both cost of revenue and selling, general, and administrative expense, and higher amortization of intangible assets as substantially all of our acquisitions in fiscal year 2018 are included within the DSA reportable segment. These increased costs collectively decreased operating income as a percentage of revenue in 2018 compared to 2017.

Manufacturing



	Fiscal Year
	2018			2017			$ change			% change		Impact of FX
	(in millions, except percentages)
Revenue	$	429.5		$	384.0		$	45.5		11.9	%	1.4	%
Cost of revenue (excluding amortization of intangible assets)	202.3			177.8			24.5			13.8	%
Selling, general and administrative	82.0			72.5			9.5			13.0	%
Amortization of intangible assets	9.0			9.8			(0.8		)	(7.9	)%
Operating income	$	136.2		$	123.9		$	12.3		9.9	%
Operating income % of revenue	31.7		%	32.3		%				(0.6	)%

Manufacturing revenue increased $45.5 million due primarily to higher demand for endotoxin products and species identification services in the Microbial Solutions business, higher service revenue in the Biologics business, higher product revenue in the Avian business, and the effect of changes in foreign currency exchange rates; partially offset by the absence of $1.8 million of service revenue related to the CDMO business.

Manufacturing operating income increased $12.3 million compared to the corresponding period in 2017. Manufacturing operating income as a percentage of revenue for fiscal year 2018 was 31.7%, a decrease of 0.6% from 32.3% for the corresponding period in 2017. The increase to operating income was due primarily to the increase in revenue. This increase was partially offset by increased costs to support the growth of the Company, including increased investments in personnel (staffing

levels and hourly wage increase), facility expansions (primarily in Microbial Solutions and Biologics), and increased investments in technology to support research and development efforts (primarily in Microbial Solutions). Increased costs are recorded in cost of revenue and selling, general, and administrative expenses and these higher costs decreased operating income as a percentage of revenue in 2018 compared to 2017.

Unallocated Corporate



	Fiscal Year
	2018		2017		$ change		% change
	(in millions, except percentages)
Unallocated corporate	$	168.9	$	133.0	$	35.9	27.0	%

Unallocated corporate costs consist of selling, general and administrative expenses that are not directly related or allocated to the reportable segments. The increase in unallocated corporate costs of $35.9 million is consistent with the allocated selling, general, and administrative expense increases discussed above and are primarily related to an increase in compensation, benefits, and other employee-related expenses and an increase in costs associated with the evaluation and integration of our recent acquisitions to support the growth of the Company. Costs as a percentage of revenue for fiscal year 2018 was 7.5%, an increase of 0.3% from 7.2% for the corresponding period in 2017.

Interest Income Interest income, which represents earnings on cash, cash equivalents, and time deposits remained consistent at $0.8 million and $0.7 million for fiscal years 2018 and 2017, respectively.

Interest Expense Interest expense for fiscal year 2018 was $63.8 million, an increase of $34.0 million, or 114.2%, compared to $29.8 million for fiscal year 2017. The increase was due primarily to higher debt to fund our recent acquisitions.

Other Income, Net Other income, net, was $13.3 million for fiscal year 2018, a decrease of $24.5 million, or 64.9%, compared to $37.8 million for fiscal year 2017. The decrease in other income, net was driven by a decrease of $7.0 million in gains recognized related to our venture capital investments, a decrease of $6.0 million in gains related to certain life insurance policies, and the absence of a $10.6 million gain recognized as a result of the CDMO business.

Income Taxes Income tax expense was $54.5 million for fiscal year 2018, a decrease of $116.9 million, compared to $171.4 million for fiscal year 2017. Our effective tax rate was 19.3% for fiscal year 2018, compared to 57.7% for fiscal year 2017. The decrease was primarily driven by the net effects of U.S. Tax Reform, including the reduction of the U.S. federal statutory tax rate from 35% in 2017 to 21% in 2018, as well as the impact of the one-time Transition Tax and change of our assertion of indefinite reinvestment of foreign earnings in 2017. In addition, 2017 includes the impact of the gain on the divestiture of the CDMO business.

Fiscal Year 2017 Compared to Fiscal Year 2016

Revenue and Operating Income

The following tables present consolidated revenue by type and by reportable segment:



	Fiscal Year
	2017		2016		$ change		% change
	(in millions, except percentages)
Service revenue	$	1,298.3	$	1,130.7	$	167.6	14.8	%
Product revenue	559.3		550.7		8.6		1.6	%
Total revenue	$	1,857.6	$	1,681.4	$	176.2	10.5	%



	Fiscal Year
	2017		2016		$ change			% change		Impact of FX
	(in millions, except percentages)
RMS	$	493.6	$	494.0	$	(0.4	)	(0.1	)%	(0.2	)%
DSA	980.0		836.6		143.4			17.1	%	(0.2	)%
Manufacturing	384.0		350.8		33.2			9.5	%	0.7	%
Total revenue	$	1,857.6	$	1,681.4	$	176.2		10.5	%	0.0	%

The following table presents operating income by reportable segment:



	Fiscal Year
	2017			2016			$ change			% change
	(in millions, except percentages)
RMS	$	114.6		$	136.4		$	(21.8	)	(16.0	)%
DSA	182.8			135.4			47.4			35.0	%
Manufacturing	123.9			104.6			19.3			18.5	%
Unallocated corporate	(133.0		)	(138.8		)	5.8			4.2	%
Total operating income	$	288.3		$	237.6		$	50.7		21.3	%

The following presents the results from operating income by each of our reportable segments:

RMS



	Fiscal Year
	2017			2016			$ change			% change		Impact of FX
	(in millions, except percentages)
Revenue	$	493.6		$	494.0		$	(0.4	)	(0.1	)%	(0.2	)%
Cost of revenue (excluding amortization of intangible assets)	317.1			292.8			24.3			8.3	%
Selling, general and administrative	60.2			62.5			(2.3		)	(3.7	)%
Amortization of intangible assets	1.7			2.3			(0.6		)	(26.1	)%
Operating income	$	114.6		$	136.4		$	(21.8	)	(16.0	)%
Operating income % of revenue	23.2		%	27.6		%				(4.4	)%

RMS revenue decreased $0.4 million due to lower research model revenue outside of China, lower service revenue in the RADS business, and the negative effect of changes in foreign currency exchange rates; partially offset by higher research model product revenue in China, and higher research model services revenue attributable to the IS and GEMS businesses.

RMS operating income decreased $21.8 million compared to the corresponding period in 2016. RMS operating income as a percentage of revenue for fiscal year 2017 was 23.2%, a decrease of 4.4% from 27.6% for the corresponding period in 2016. Operating income and operating income as a percentage of revenue decreased due primarily to higher restructuring costs (recorded primarily within cost of revenue) associated with the planned closure of our production facility in Maryland; increased employee compensation costs to support the growth of the business; and increased facility investments in China.

DSA



	Fiscal Year
	2017			2016			$ change		% change		Impact of FX
	(in millions, except percentages)
DSA	$	980.0		$	836.6		$	143.4	17.1	%	(0.2	)%
Cost of revenue (excluding amortization of intangible assets)	661.7			575.1			86.6		15.1	%
Selling, general and administrative	105.6			98.3			7.3		7.4	%
Amortization of intangible assets	29.9			27.8			2.1		7.6	%
Operating income	$	182.8		$	135.4		$	47.4	35.0	%
Operating income % of revenue	18.7		%	16.2		%			2.5	%

DSA revenue increased $143.4 million due primarily to increased demand from mid-tier biotechnology clients and global biopharmaceuticals clients. The Safety Assessment business had higher service revenue as a result of the WIL Research acquisition, which contributed $62.5 million to service revenue growth, as well as growth of the legacy business, including favorable volume, mix of services, and pricing; and the Discovery Services business had higher service revenue, primarily as a result of the acquisitions of Agilux and Brains On-Line that contributed $28.6 million and $4.9 million to service revenue growth, respectively; partially offset by the negative effect of changes in foreign currency exchange rates.

DSA operating income increased $47.4 million compared to the corresponding period in 2016. DSA operating income as a percentage of revenue for fiscal year 2017 was 18.7%, an increase of 2.5% from 16.2% for the corresponding period in 2016. The increase to operating income was due primarily to the contributions from the acquisitions of WIL Research, Agilux, and Brains On-line. The increase in operating income as a percentage of revenue resulted from the lower restructuring costs

compared to costs incurred in 2016 associated with site consolidations to help improve productivity, lower acquisition costs compared to 2016; partially offset by increased costs to support the growth of the business primarily relating to compensation, benefits, and other employee-related expenses.

Manufacturing



	Fiscal Year
	2017			2016			$ change			% change		Impact of FX
	(in millions, except percentages)
Revenue	$	384.0		$	350.8		$	33.2		9.5	%	0.7	%
Cost of revenue (excluding amortization of intangible assets)	177.8			169.5			8.3			4.9	%
Selling, general and administrative	72.5			65.1			7.4			11.4	%
Amortization of intangible assets	9.8			11.6			(1.8		)	(15.5	)%
Operating income	$	123.9		$	104.6		$	19.3		18.5	%
Operating income % of revenue	32.3		%	29.8		%				2.5	%

Manufacturing revenue increased $33.2 million due primarily to higher demand for endotoxin products in the Microbial Solutions business; increased demand in the Biologics business, which included the acquisition of Blue Stream that contributed $3.5 million to service revenue growth; and positive effect of changes in foreign current exchange rates; partially offset by the absence of $10.9 million of service revenue related to the CDMO business; and lower product revenue in the Avian business.

Manufacturing operating income increased $19.3 million compared to the corresponding period in 2016. Manufacturing operating income as a percentage of revenue for fiscal year 2017 was 32.3%, an increase of 2.5% from 29.8% for the corresponding period in 2016. The increase to operating income and operating income as a percentage of revenue was due primarily to the increase in revenue; partially offset by increased costs to support the growth of the business including an increase in compensation, benefits, and other employee-related expenses.

Unallocated Corporate



	Fiscal Year
	2017		2016		$ change			% change
	(in millions, except percentages)
Unallocated corporate	$	133.0	$	138.8	$	(5.8	)	(4.2	)%

The decrease in unallocated corporate costs of $5.8 million was primarily related to a decrease in costs associated with the evaluation and integration of acquisitions, and decrease in information technology infrastructure related expenses; partially offset by an increase in compensation, benefits, and other employee-related expenses. Costs as a percentage of revenue for fiscal year 2017 was 7.2%, a decrease of 1.1% from 8.3% for the corresponding period in 2016.

Interest Income Interest income, which represents earnings on cash, cash equivalents, and time deposits was $0.7 million for fiscal year 2017, a decrease of $0.6 million, or 47.5%, compared to $1.3 million for fiscal year 2016.

Interest Expense Interest expense for fiscal year 2017 was $29.8 million, an increase of $2.1 million, or 7.5%, compared to $27.7 million for fiscal year 2016. The increase was due primarily to higher average balances outstanding and higher average interest rates under our $1.65B Credit Facility; partially offset by the increase in fiscal year 2016 attributed to the write-off of a portion of debt issuance costs in connection with the modification of our prior $1.3B Credit Facility.

Other Income, Net Other income, net, was $37.8 million for fiscal year 2017, an increase of $26.0 million, or 221.0%, compared to $11.8 million for fiscal year 2016. The increase in other income, net was driven by an increase of $12.6 million in gains recognized related to our venture capital investments, a $10.6 million gain recognized as a result of the divestiture of the CDMO business, and higher net gains on life insurance policy investments of $2.0 million.

Income Taxes Income tax expense was $171.4 million for fiscal year 2017, an increase of $104.6 million, compared to $66.8 million for fiscal year 2016. Our effective tax rate was 57.7% for fiscal year 2017, compared to 30.0% for fiscal year 2016. The increase was primarily driven by the one-time Transition Tax mandated by U.S. Tax Reform, the change of our assertion of indefinite reinvestment of foreign earnings, and a gain on the divestiture of the CDMO business. These increases are net of decreases relating to the excess tax benefits from stock-based compensation due to the adoption of ASU 2016-09, as well as the revaluation of U.S. net deferred tax liabilities to 21% based on enacted U.S. Tax Reform.

Liquidity and Capital Resources

We currently require cash to fund our working capital needs, capital expansion, acquisitions, and to pay our debt and pension obligations. Our principal sources of liquidity have been our cash flows from operations, supplemented by long-term borrowings. Based on our current business plan, we believe that our existing funds, when combined with cash generated from operations and our access to financing resources, are sufficient to fund our operations for the foreseeable future.

The following table presents our cash, cash equivalents and investments:



	December 29, 2018		December 30, 2017
	(in millions)
Cash and cash equivalents:
Held in U.S. entities	$	67.3	$	30.6
Held in non-U.S. entities	128.1		133.2
Total cash and cash equivalents	195.4		163.8
Investments:
Held in non-U.S. entities	0.9		28.5
Total cash, cash equivalents and investments	$	196.3	$	192.3

Borrowings

On March 26, 2018, we amended and restated our $1.65 billion credit facility, creating our $2.3B Credit Facility which extended the maturity date for the credit facility. The $2.3B Credit Facility provides for a $750.0 million term loan and a $1.55 billion multi-currency revolving facility. The term loan facility matures in 19 quarterly installments with the last installment due March 26, 2023. The revolving facility matures on March 26, 2023, and requires no scheduled payment before that date.

On April 3, 2018, we entered into an indenture (Indenture) with MUFG Union Bank, N.A., in connection with the offering of $500.0 million in aggregate principal amount of the Company’s 5.5% Senior Notes (Senior Notes) due in 2026 in an unregistered offering. Under the terms of the Indenture, interest on the Senior Notes is payable semi-annually on April 1 and October 1 of each year, beginning on October 1, 2018.

Amounts outstanding under our credit facilities and Senior Notes were as follows:



	December 29, 2018		December 30, 2017
	(in millions)
Term loans	$	731.3	$	601.3
Revolving facility	397.5		501.0
Senior Notes	500.0		—
Total	$	1,628.8	$	1,102.3

Under specified circumstances, we have the ability to increase the term loan and/or revolving facility by up to $1.0 billion in the aggregate. The interest rates applicable to the term loan and revolving facility under the $2.3B Credit Facility are, at our option, equal to either the base rate (which is the higher of (1) the prime rate, (2) the federal funds rate plus 0.50%, or (3) the one-month adjusted LIBOR rate plus 1.0%) or the adjusted LIBOR rate, plus an interest rate margin based upon our leverage ratio.

The intended acquisition of Citoxlab along with the associated fees are expected to be financed through our existing revolving credit facility and cash.

Repurchases of Common Stock

On May 9, 2017, our Board of Directors increased the stock repurchase authorization by $150.0 million, to an aggregate amount of $1.3 billion. During fiscal year 2018, we did not repurchase any shares under our authorized stock repurchase program. As of December 29, 2018, we had $129.1 million remaining on the authorized stock repurchase program. Our stock-based compensation plans permit the netting of common stock upon vesting of restricted stock, restricted stock units, and performance share units in order to satisfy individual statutory tax withholding requirements. During fiscal year 2018, we acquired 0.1 million shares for $13.8 million through such netting.

Cash Flows

The following table presents our net cash provided by operating activities:



	Fiscal Year
	2018		2017		2016
	(in millions)
Income from continuing operations	$	227.2	$	125.6	$	156.1
Adjustments to reconcile net income from continuing operations to net cash provided by operating activities	199.1		186.6		174.3
Changes in assets and liabilities	14.8		5.9		(13.5		)
Net cash provided by operating activities	$	441.1	$	318.1	$	316.9

Net cash provided by cash flows from operating activities represents the cash receipts and disbursements related to all of our activities other than investing and financing activities. Operating cash flow is derived by adjusting our income from continuing operations for (1) non-cash operating items such as depreciation and amortization, stock-based compensation, deferred income taxes, gains on venture capital investments and divestiture, and impairment charges, as well as (2) changes in operating assets and liabilities, which reflect timing differences between the receipt and payment of cash associated with transactions and when they are recognized in our results of operations. Net cash provided by operating activities increased from fiscal year 2017 to 2018. The increase was primarily driven by an increase in income from continuing operations and positive changes in operating assets and liabilities resulting from an increase in our deferred revenue (primarily due to a one-time up-front payment received in connection with a strategic agreement), an increase in customer contract deposits, as well as improved collections of our receivables. The increase in net cash provided by operating activities from fiscal year 2016 to 2017 was primarily driven by positive changes in operating assets and liabilities due to the recognition of a tax payable in connection with U.S. Tax Reform, and the timing of our accounts payable and accrued compensation payments. These increases were partially offset by a decrease in income from continuing operations.

The following table presents our net cash used in investing activities:



	Fiscal Year
	2018			2017			2016
	(in millions)
Acquisition of businesses and assets, net of cash acquired	$	(824.9	)	$	(25.0	)	$	(648.5	)
Capital expenditures	(140.1		)	(82.4		)	(55.3		)
Investments, net	10.7			(37.2		)	7.4
Proceeds from divestiture	—			72.5			—
Other, net	(0.7		)	(0.5		)	3.7
Net cash used in investing activities	$	(955.0	)	$	(72.6	)	$	(692.7	)

The primary use of cash used in investing activities in fiscal year 2018 related to our acquisitions of MPI Research and KWS BioTest, and our capital expenditures to support the growth of the business; partially offset by proceeds from net investments, which primarily relate to short-term investments held by our U.K. operations. The primary use of cash in fiscal year 2017 related to our capital expenditures to support the growth of the business, net investment activity, and our acquisition of Brains On-Line, partially offset by the proceeds from the divestiture of the CDMO business. The primary use of cash in fiscal year 2016 related to our acquisitions of WIL Research for $577.4 million, net of cash acquired; Agilux for $62.0 million, net of cash acquired; and Blue Stream for $8.7 million, net of cash acquired; as well as our capital expenditures; partially offset by proceeds from net investments.

The following table presents our net cash provided by (used in) financing activities:



	Fiscal Year
	2018		2017		2016
	(in millions)
Proceeds from long-term debt and revolving credit facility	$	2,755.0	$	236.8	$	1,044.7