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* BAIN CAPITAL INVESTORS LLC (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol BRIGHT HORIZONS FAMILY SOLUTIONS INC. [ BFAM ]	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) 05/16/2017
	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	05/16/2017		S		4,124,534	D	$79.25	8,402,958	I	See Footnotes(1)(2)(3)(4)(5)(6)(7)

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* BAIN CAPITAL INVESTORS LLC (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (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* BCIP Trust Associates III-B (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (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* BCIP Associates-G (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (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* BC BRIGHTNESS SPV GP, LLC (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON MA 02116 (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* BC Brightness SPV, LP (Last) (First) (Middle) 200 CLARENDON STREET (Street) BOSTON, MA 02116 (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. Bain Capital Investors, LLC ("BCI") is the sole member of BC Brightness SPV GP, LLC ("BC SPV GP"), which is the sole general partner of BC Brightness SPV, LP ("BC SPV"). As a result, BC SPV GP may be deemed to share voting and dispositive power with respect to shares of Common Stock held by BC SPV. BC SPV GP disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein. On May 16, 2017, BC SPV sold 4,076,952 shares of Common Stock. Following such sale, BC SPV held 8,306,017 shares of Common Stock.

2. On May 16, 2017, BCIP Associates III, LLC ("BCIP III"), whose manager is BCIP Associates III ("BCIPA III"), whose managing partner is Boylston Coinvestors, LLC ("Boylston"), sold 28,583 shares of Common Stock. Following such sale, BCIP III held 58,232 shares of Common Stock. BCIPA III may be deemed to share voting and dispositive power with respect to the shares of Common Stock held by BCIP III. BCIPA III disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

3. On May 16, 2017, BCIP Associates III-B, LLC ("BCIP III-B"), whose manager is BCIP Associates III-B ("BCIPA III-B"), whose managing partner is Boylston, sold 5,189 shares of Common Stock Following such sale, BCIP III-B held 10,572 shares of Common Stock. BCIPA III-B may be deemed to share voting and dispositive power with respect to the shares of Common Stock held by BCIP III-B. BCIPA III-B disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

4. On May 16, 2017, BCIP T Associates III, LLC ("BCIPT III"), whose manager is BCIP Trust Associates III ("BCIPTA III"), whose managing partner is Boylston, sold 12,411 shares of Common Stock. Following such sale, BCIPT III held 25,285 shares of Common Stock. BCIPTA III may be deemed to share voting and dispositive power with respect to the shares of Common Stock held by BCIPT III. BCIPTA III disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

5. On May 16, 2017, BCIP T Associates III-B, LLC ("BCIPT III-B"), whose manager is BCIP Trust Associates III-B ("BCIPTA III-B"), whose managing partner is Boylston, sold 859 shares of Common Stock. Following such sale, BCIPT III-B held 1,751 shares of Common Stock. BCIPTA III-B may be deemed to share voting and dispositive power with respect to the shares of Common Stock held by BCIPT III-B. BCIPTA III-B disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

6. On May 16, 2017, BCIP Associates-G ("BCIP G" and together with BC SPV, BCIP III, BCIP III-B, BCIPT III and BCIPT III-B, the "Bain Capital Entities"), whose managing partner is Boylston, sold 540 shares of Common Stock. Following such sale, BCIP G held 1,101 shares of Common Stock.

7. The governance, investment strategy and decision-making process with respect to the investments held by the Bain Capital Entities is directed by the Global Private Equity Board of BCI. As a result, BCI may be deemed to share voting and dispositive power with respect to all of the shares of Common Stock held by the Bain Capital Entities. BCI disclaims beneficial ownership of such securities except to the extent of its pecuniary interest therein.

Remarks:

Form 2 of 2

	BCIP Trust Associates III-B, By: Boylston Coinvestors, LLC, as Managing Partner, By: /s/ David Humphrey, Name: David Humphrey, Title: Authorized Signatory	05/18/2017
	BCIP Associates-G, By: Boylston Coinvestors, LLC, as Managing Partner, By: /s/ David Humphrey, Name: David Humphrey, Title: Authorized Signatory	05/18/2017
	BC Brightness SPV GP, LLC, By: Bain Capital Investors, LLC, it's sole Member, By: /s/ David Humphrey, Name: David Humphrey, Title: Managing Director	05/18/2017
	BC BRIGHTNESS SPV, LP, By: BC Brightness SPV GP, LLC, its General Partner, By: Bain Capital Investors, LLC, its Sole Member, By: /s/ David Humphrey, Name: David Humphrey, Title: Managing Director	05/18/2017
	Bain Capital Investors, LLC, By: By: /s/ David Humphrey, Name: David Humphrey, Title: Managing Director	05/18/2017
	** Signature of Reporting Person	Date
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