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* ONTARIO TEACHERS PENSION PLAN BOARD (Last) (First) (Middle) 5650 YONGE STREET (Street) TORONTO A6 M2M 4H5 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol INC Research Holdings, Inc. [ INCR ]	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) 11/13/2014
	4. If Amendment, Date of Original Filed (Month/Day/Year) 11/17/2014	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
Class A Common Stock, par value $0.01 per share(1)	11/13/2014		J(2)		496,724	A	(2)	14,846,912(1)	D(1)
Class B Common Stock, par value $0.01 per share(1)(3)	11/13/2014		J(2)		496,724	D	(2)	10,033,994(1)(3)	D(1)

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* ONTARIO TEACHERS PENSION PLAN BOARD (Last) (First) (Middle) 5650 YONGE STREET (Street) TORONTO A6 M2M 4H5 (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* 1829356 Ontario Ltd (Last) (First) (Middle) 5650 YONGE STREET, SUITE 300 (Street) TORONTO A6 M2M 4H5 (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. The reported securities are owned by 1829356 Ontario Limited, a wholly-owned subsidiary of Ontario Teachers' Pension Plan Board ("OTPP"). Each of Messrs. Terry Woodward and Steve Faraone may be deemed to have the power to dispose of the shares held by OTPP because of a delegation of authority from the Board of Directors of OTPP, and each expressly disclaims beneficial ownership of such shares.

2. Effective upon the consummation of the initial public offering (the "IPO") of the Class A common stock, par value $0.01 per share, of INC Research Holdings, Inc. (the "Issuer"), the Issuer converted 496,724 shares of the Issuer's Class B common stock, par value $0.01 per share, held by OTPP, into an equal number of shares of the Issuer's Class A common stock, par value $0.01 per share.

3. OTPP may, at any time, elect to convert shares of Class B common stock into an equal number of shares of Class A common stock, or convert shares of Class A common stock into an equal number of shares of Class B common stock.

Remarks:

This Form 4/A amends the Form 4 filed on November 17, 2014 to add 1829356 Ontario Limited as an additional reporting person.

	/s/ Rossana Di Lieto, Chief Compliance Officer	02/11/2015
	** Signature of Reporting Person	Date
Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
* If the form is filed by more than one reporting person, see Instruction 4 (b)(v).
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