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 *
  Mays Sandra
2. Date of Event Requiring Statement (Month/Day/Year)
08/30/2018
3. Issuer Name and Ticker or Trading Symbol
Zayo Group Holdings, Inc. [ZAYO]
(Last)
(First)
(Middle)
1821 30TH STREET, UNIT A
4. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
__X__ Officer (give title below) _____ Other (specify below)
CIO
5. If Amendment, Date Original Filed(Month/Day/Year)
(Street)

BOULDER, CO 80301
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 196,531
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
Restricted Stock Unit   (1)   (1) Common Stock 2,720 $ (2) D  
Restricted Stock Unit   (3)   (3) Common Stock 3,072 $ (4) D  
Restricted Stock Unti   (5)   (5) Common Stock 5,299 $ (2) D  
Restricted Stock Unit   (6)   (6) Common Stock 2,919 $ (4) D  
Restricted Stock Unit   (3)   (3) Common Stock 8,058 $ (2) D  
Restricted Stock Unit   (7)   (7) Common Stock 3,084 $ (4) D  
Restricted Stock Unit   (8)   (8) Common Stock 2,923 $ (4) D  
Restricted Stock Unit   (6)   (6) Common Stock 8,867 $ (2) D  

Reporting Owners

Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Mays Sandra
1821 30TH STREET
UNIT A
BOULDER, CO 80301
      CIO  

Signatures

/s/ Shira Cooks, as attorney-in-fact 08/30/2018
**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) The restricted stock units vest in full on September 30, 2018.
(2) Each Part A restricted stock unit converts into one share of Zayo Group Holdings, Inc. common stock.
(3) The restricted stock units vest in full on December 31, 2018
(4) Each Part B restricted stock unit represents a contingent right to receive one share of Zayo Group Holdings, Inc. (the "Company") common stock. The reported number of restricted stock units assumes target level stock price performance. Upon vesting, the number of shares of common stock received by the reporting person will be determined based on the Company's historical stock price performance.
(5) The restricted stock units vest 50% on September 30, 2018 and 50% on December 31, 2018.
(6) The restricted stock units vest in full on March 31, 2019.
(7) The restricted stock units vest in full on June 30, 2019.
(8) The restricted stock units vest in full on September 30, 2019.

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