Ownership Submission
FORM 3
 UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549

INITIAL STATEMENT OF BENEFICIAL OWNERSHIP OF SECURITIES

Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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(Print or Type Responses)
1. Name and Address of Reporting Person *
  Bonello Michael J.
 2. Date of Event Requiring Statement (Month/Day/Year)
05/01/2018		 3. Issuer Name and Ticker or Trading Symbol
PRA Health Sciences, Inc. [PRAH]
(Last)
(First)
(Middle)
C/O PRA HEALTH SCIENCES, INC., 4130 PARKLAKE AVENUE, SUITE 400		 4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
Exec VP & CFO
 5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

RALEIGH, NC 27612		 6. Individual or Joint/Group Filing(Check Applicable Line)
_X_ Form filed by One Reporting Person
___ Form filed by More than One Reporting Person
(City)
(State)
(Zip)
Table I - Non-Derivative Securities Beneficially Owned
1.Title of Security
(Instr. 4)		 2. Amount of Securities Beneficially Owned
(Instr. 4)		 3. Ownership Form: Direct (D) or Indirect (I)
(Instr. 5)		 4. Nature of Indirect Beneficial Ownership
(Instr. 5)
Common Stock 18,000 (1)
D
 

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly. SEC 1473 (7-02)
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Table II - Derivative Securities Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security
(Instr. 4)		 2. Date Exercisable and Expiration Date
(Month/Day/Year)		 3. Title and Amount of Securities Underlying Derivative Security
(Instr. 4)		 4. Conversion or Exercise Price of Derivative Security 5. Ownership Form of Derivative Security: Direct (D) or Indirect (I)
(Instr. 5)		 6. Nature of Indirect Beneficial Ownership
(Instr. 5)
Date Exercisable Expiration Date Title Amount or Number of Shares
Stock Option (Right to Buy)   (2) 12/20/2023 Common Stock 20,736 $ 11.73 D  
Stock Option (Right to Buy)   (3) 12/20/2023 Common Stock 12,636 $ 11.73 D  
Stock Option (Right to Buy)   (4) 08/29/2027 Common Stock 20,000 $ 75.81 D  
Stock Option (Right to Buy)   (5) 04/26/2028 Common Stock 80,000 $ 81.61 D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Bonello Michael J.
C/O PRA HEALTH SCIENCES, INC.
4130 PARKLAKE AVENUE, SUITE 400
RALEIGH, NC 27612		       Exec VP & CFO  

Signatures

/s/ Timothy J. McClain, by power of attorney 05/01/2018
**Signature of Reporting Person Date

Explanation of Responses:

* If the form is filed by more than one reporting person, see Instruction 5(b)(v).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
(1) Represents shares of restricted stock granted on April 26, 2018 under the issuer's 2014 Omnibus Incentive Plan (the "2014 Plan"), of which two-thirds will vest on the second anniversary of the grant date and the remaining one-third will vest on the third anniversary of the grant date, subject to the holder's continued service through such dates.
(2) The options were granted on December 20, 2013 under the issuer's 2013 Stock Incentive Plan (the "2013 Plan"). 3,681 options vested on September 23, 2016, 8,527 options vested on September 23, 2017, and the remaining 8,528 options will vest on September 23, 2018, subject to the holder's continued service through such date.
(3) The options were granted on December 20, 2013 under the 2013 Plan. The options vested on November 16, 2016, based on the achievement of specified performance targets.
(4) The options were granted on August 29, 2017 under the 2014 Plan and vest as follows: (a) 20% on each of August 29, 2018 and August 29, 2019 and (b) 30% on each of August 29, 2020 and August 29, 2021, subject to the holder's continued service through such dates.
(5) The options were granted on April 26, 2018 under the 2014 Plan and vest 25% each year starting on the first anniversary of the grant date, subject to the holder's continued service through such dates.
 
Remarks:
Exhibit 24.1 - Power of Attorney

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