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* Freund John Gordon (Last) (First) (Middle) C/O SKYLINE VENTURE PARTNERS V, L.P. 525 UNIVERSITY AVE. (Street) PALO ALTO CA 94301 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol COLLEGIUM PHARMACEUTICAL, INC [ COLL ]	5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X Director X 10% Owner Officer (give title below) Other (specify below)
	3. Date of Earliest Transaction (Month/Day/Year) 05/12/2015
	4. If Amendment, Date of Original Filed (Month/Day/Year)	6. Individual or Joint/Group Filing (Check Applicable Line) X Form filed by One Reporting Person 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	05/12/2015		C		1,552,795	A	(1)	1,552,795(2)	I	By Skyline Venture Partners V, L.P.(3)
Common Stock	05/12/2015		C		382,323	A	(1)	1,935,118(2)	I	By Skyline Venture Partners V, L.P.(3)
Common Stock	05/12/2015		C		864,798	A	(1)	2,799,916(2)	I	By Skyline Venture Partners V, L.P.(3)
Common Stock	05/12/2015		P		150,000	A	$12	2,949,916	I	By Skyline Venture Partners V, L.P.(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
Series B Convertible Stock	(1)	05/12/2015		C			10,714,286	(1)	(1)	Common Stock	1,552,795(2)	$0	0	I	By Skyline Venture Partners V, L.P.(3)
Series C Convertible Stock	(1)	05/12/2015		C			2,638,030	(1)	(1)	Common Stock	382,323(2)	$0	0	I	By Skyline Venture Partners V, L.P.(3)
Series D Convertible Stock	(1)	05/12/2015		C			5,881,724	(1)	(1)	Common Stock	864,798(2)	$0	0	I	By Skyline Venture Partners V, L.P.(3)

Explanation of Responses:

1. All series of Convertible Preferred Stock automatically converted into Collegium Pharmaceutical, Inc. common stock on a 1-for-6.9 basis immediately prior to the closing of the initial public offering and had no expiration date.

2. Reflects the conversion of preferred stock into Collegium Pharmaceutical, Inc. common stock on a 1-for-6.9 basis which became effective on May 12, 2015.

3. The shares are held by Skyline Venture Partners V, L.P. The general partner of Skyline Venture Partners V, L.P. is Skyline Venture Management V, LLC. John G. Freund and Yasunori Kaneko are managers of Skyline Venture Management V, LLC. These individuals share voting and investment power over the shares held by Skyline Venture Management, LLC. Dr. Freund disclaims beneficial ownership of all the shares held by Skyline Venture Partners V, L.P. except to the extent of his proportionate pecuniary interest therein.

Remarks:

	/s/ Paul Brannelly as Attorney-In-Fact For John G. Freund, MD	05/13/2015
	** Signature of Reporting Person	Date
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