SEC Form 4

FORM 4		UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934 or Section 30(h) of the Investment Company Act of 1940	OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response: 0.5
	Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

1. Name and Address of Reporting Person* GTCR FUND X/A LP (Last) (First) (Middle) 300 NORTH LASALLE STREET, SUITE 5600 (Street) CHICAGO IL 60654 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Zayo Group Holdings, Inc. [ ZAYO ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 11/27/2017
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) Form filed by One Reporting Person X Form filed by More than One Reporting Person

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1. Title of Security (Instr. 3)	2. Transaction Date (Month/Day/Year)	2A. Deemed Execution Date, if any (Month/Day/Year)	3. Transaction Code (Instr. 8)		4. Securities Acquired (A) or Disposed Of (D) (Instr. 3, 4 and 5)			5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4)	6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	7. Nature of Indirect Beneficial Ownership (Instr. 4)
			Code	V	Amount	(A) or (D)	Price
Common Stock	11/27/2017		J(1)		300,000	D	$0.00	27,123,334	I	See footnotes(2)(3)

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned (e.g., puts, calls, warrants, options, convertible securities)
1. Title of Derivative Security (Instr. 3)	2. Conversion or Exercise Price of Derivative Security	3. Transaction Date (Month/Day/Year)	3A. Deemed Execution Date, if any (Month/Day/Year)	4. Transaction Code (Instr. 8)		5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5)		6. Date Exercisable and Expiration Date (Month/Day/Year)		7. Title and Amount of Securities Underlying Derivative Security (Instr. 3 and 4)		8. Price of Derivative Security (Instr. 5)	9. Number of derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4)	10. Ownership Form: Direct (D) or Indirect (I) (Instr. 4)	11. Nature of Indirect Beneficial Ownership (Instr. 4)
				Code	V	(A)	(D)	Date Exercisable	Expiration Date	Title	Amount or Number of Shares

1. Name and Address of Reporting Person* GTCR FUND X/A LP (Last) (First) (Middle) 300 NORTH LASALLE STREET, SUITE 5600 (Street) CHICAGO IL 60654 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GTCR FUND X/C LP (Last) (First) (Middle) 300 NORTH LASALLE STREET, SUITE 5600 (Street) CHICAGO IL 60654 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GTCR Investors (CII) LP (Last) (First) (Middle) 300 NORTH LASALLE STREET, SUITE 5600 (Street) CHICAGO IL 60654 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GTCR Partners X/A&C LP (Last) (First) (Middle) 300 NORTH LASALLE STREET, SUITE 5600 (Street) CHICAGO IL 60654 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GTCR CO-INVEST X LP (Last) (First) (Middle) 300 NORTH LASALLE STREET, SUITE 5600 (Street) CHICAGO IL 60654 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

1. Name and Address of Reporting Person* GTCR Investment X LLC (Last) (First) (Middle) 300 NORTH LASALLE STREET, SUITE 5600 (Street) CHICAGO IL 60654 (City) (State) (Zip) Relationship of Reporting Person(s) to Issuer Director X 10% Owner Officer (give title below) Other (specify below)

Explanation of Responses:

1. Represents a distribution of an aggregate of 300,000 shares of Common Stock to certain affiliates of the GTCR Shareholders for no value.

2. Consists of (i) 13,445,346 shares held of record by GTCR Fund X/A LP; (ii) 3,848,427 shares held of record by GTCR Fund X/C LP; (iii) 118,737 shares held of record by GTCR Co-Invest X LP; and (iv) 9,710,824 shares held of record by GTCR Investors (CII) LP (collectively, the "GTCR Shareholders"). GTCR Partners X/A&C LP is the general partner of each of GTCR Fund X/A LP, GTCR Fund X/C LP and GTCR Investors (CII) LP. GTCR Investment X LLC is the general partner of each of GTCR Co-Invest X LP and GTCR Partners X/A&C LP. GTCR Investment X LLC is managed by an eight-member board of managers (the "GTCR Board of Managers"). (continued)

3. (continued from footnote 1) Each of the foregoing entities and the individual members of the GTCR Board of Managers disclaims beneficial ownership of the shares held of record by the GTCR Shareholders, except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that the reporting person is the beneficial owner of the securities for purposes of Section 16 or for any other purpose.

Remarks:

	GTCR FUND X/A LP, By: GTCR Partners X/A&C LP, its general partner, By: GTCR Investment X LLC, its general partner, By: /s/ Jeffrey S. Wright, Principal and Associate General Counsel	11/28/2017
	GTCR INVESTORS (CII) LP, By: GTCR Partners X/A&C LP, its general partner, By: GTCR Investment X LLC, its general partner, By: /s/ Jeffrey S. Wright, Principal and Associate General Counsel	11/28/2017
	GTCR PARTNERS X/A&C LP, By: GTCR Investment X LLC, its general partner, By: /s/ Jeffrey S. Wright, Principal and Associate General Counsel	11/28/2017
	GTCR INVESTMENT X LLC, By: /s/ Jeffrey S. Wright, Principal and Associate General Counsel	11/28/2017
	GTCR FUND X/C LP, By: GTCR Partners X/A&C LP, its general partner, By: GTCR Investment X LLC, its general partner, By: /s/ Jeffrey S. Wright, Principal and Associate General Counsel	11/28/2017
	GTCR CO-INVEST X LP, By: GTCR Investment X LLC, its general partner, By: /s/ Jeffrey S. Wright, Principal and Associate General Counsel	11/28/2017
	** Signature of Reporting Person	Date
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