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Filing Details

Accession Number:: 0001144204-16-138890
Form Type:: 13G Filing
Publication Date:: 2016-12-12 12:03:51

Filed By:: Partner Fund Management
Company:: Collegium Pharmaceutical Inc
Filing Date:: 2016-12-12
SEC Url:: 13G Filing

Ownership Summary

Please notice the below summary table is generated without human intervention and may contain errors. Please refer to the complete filing displayed below for exact figures.

Name	Shared Voting Power	Percent of Class
Partner Fund Management	1,418,141	5.0%
Partner Fund Management GP	1,418,141	5.0%
Partner Investment Management	23,769	0.1%
Partner Investment Management GP	23,769	0.1%
Brian D. Grossman	1,441,910	5.0%
Christopher M. James	1,441,910	5.0%

Filing

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

Information Statement Pursuant to Rules 13d-1 and 13d-2

Under the Securities Exchange Act of 1934

(Amendment No. )*

Collegium Pharmaceutical, Inc.

(Name of Issuer)

Common stock, par value $0.001 per share

(Title of Class of Securities)

19459J104

(CUSIP Number)

December 1, 2016

Date of Event Which Requires Filing of the Statement

Check the appropriate box to designate the rule pursuant to which this Schedule is filed:

Rule 13d-1(b)

Rule 13d-1(c)

Rule 13d-1(d)

*The remainder of this cover page shall be filled out for a reporting person’s initial filing on this form with respect to the subject class of securities, and for any subsequent amendment containing information which would alter disclosures provided in a prior cover page.

The information required on the remainder of this cover page shall not be deemed to be “filed” for the purpose of Section 18 of the Securities Exchange Act of 1934 (“Act”) or otherwise subject to the liabilities of that section of the Act but shall be subject to all other provisions of the Act (however, see the Notes).

CUSIP No. 19459J104

13G

Page 2 of 13 Pages

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Partner Fund Management, L.P.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) x

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

1,418,141 shares

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

See Row 6 above

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

See Row 6 above

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

5.0%¹

12.

TYPE OF REPORTING PERSON

IA; PN

The percentages reported in this Schedule 13G are based upon 28,610,551 shares of common stock outstanding as of October 31, 2016 according to the Form 10-Q filed by the issuer with the Securities and Exchange Commission on November 10, 2016. All of the other numbers and percentages reported in this Schedule 13G are as of 9:00 a.m. (PT) on the date of filing.

CUSIP No. 19459J104

13G

Page 3 of 13 Pages

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Partner Fund Management GP, LLC

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) x

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

1,418,141 shares

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

See Row 6 above

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

See Row 6 above

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

5.0%

12.

TYPE OF REPORTING PERSON

CUSIP No. 19459J104

13G

Page 4 of 13 Pages

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Partner Investment Management, L.P.

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) x

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

23,769 shares

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

See Row 6 above

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

See Row 6 above

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

0.1%

12.

TYPE OF REPORTING PERSON

IA; PN

CUSIP No. 19459J104

13G

Page 5 of 13 Pages

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Partner Investment Management GP, LLC

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) x

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

Delaware

NUMBER OF

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

23,769 shares

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

See Row 6 above

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

See Row 6 above

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

0.1%

12.

TYPE OF REPORTING PERSON

CUSIP No. 19459J104

13G

Page 6 of 13 Pages

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Brian D. Grossman

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) x

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

U.S. Citizen

NUMBER OF

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

1,441,910 shares

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

See Row 6 above

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

See Row 6 above

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

5.0%

12.

TYPE OF REPORTING PERSON

CUSIP No. 19459J104

13G

Page 7 of 13 Pages

NAME OF REPORTING PERSON

S.S. OR I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

Christopher M. James

CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP

(a) ¨

(b) x

SEC USE ONLY

CITIZENSHIP OR PLACE OF ORGANIZATION

U.S. Citizen

NUMBER OF

BENEFICIALLY

OWNED BY

EACH

REPORTING

PERSON

WITH

SOLE VOTING POWER

SHARED VOTING POWER

1,441,910 shares

SOLE DISPOSITIVE POWER

SHARED DISPOSITIVE POWER

See Row 6 above

AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

See Row 6 above

10.

CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES ¨

11.

PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW (9)

5.0%

12.

TYPE OF REPORTING PERSON

CUSIP No. 19459J104

13G

Page 8 of 13 Pages

Item 1(a)	Name of Issuer
	Collegium Pharmaceutical, Inc.

Item 1(b)	Address of Issuer’s Principal Executive Offices
	780 Dedham Street, Suite 800, Canton, Massachusetts 02021

Item 2(a)	Name of Person Filing
	This Schedule 13G is being jointly filed by Partner Fund Management, L.P. (“PFM”), Partner Fund Management GP, LLC (“PFM-GP”), Partner Investment Management, L.P. (“PIM”), Partner Investment Management GP, LLC (“PIM-GP”), Brian D. Grossman (“Grossman”) and Christopher M. James (“James” and, collectively with PFM, PFM-GP, PIM, PIM-GP and Grossman, the “Reporting Persons”) with respect to shares of common stock of the above-named issuer owned by PFM Healthcare Master Fund, L.P., a Cayman Islands limited partnership (“HCM”), PFM Healthcare Opportunities Master Fund, L.P., a Cayman Islands limited partnership (“HCOPP”), PFM Healthcare Principals Fund, L.P., a Delaware limited partnership (“HCP”), PFM Healthcare Emerging Growth Master Fund, L.P., a Cayman Islands limited partnership (“HEGM”), and PFM Oncology Opportunities Master Fund, L.P., a Cayman Islands limited partnership (“ONCOPP” and, collectively with HCM, HCOPP, HCP and HEGM, the “Funds”).

	PFM is the investment advisor for HCM, HCOPP, HEGM and ONCOPP. PIM is the investment advisor for HCP. PFM-GP and PIM-GP are, respectively, the general partners of PFM and PIM. Grossman is the portfolio manager for the health care strategy for the Funds. James is the chief investment officer for PIM and PFM and member manager of PFM-GP and PIM-GP.

	The filing of this statement shall not be construed as an admission that any of the Reporting Persons is the beneficial owner of any securities covered by the statement other than the securities actually owned by such person (if any).

Item 2(b)	Address of Principal Business Office
	The address of the principal business office of each of the Reporting Persons is c/o Partner Fund Management, L.P., 4 Embarcadero Center, Suite 3500, San Francisco, CA 94111.

Item 2(c)	Citizenship
	Each of PFM and PIM is organized as a limited partnership under the laws of the State of Delaware. Each of PFM-GP and PIM-GP is organized as a limited liability company under the laws of the State of Delaware. Each of Grossman and James is a U.S. citizen.

Item 2(d)	Title of Class of Securities
	Common stock, $0.001 par value

Item 2(e)	CUSIP Number
	19459J104

CUSIP No. 19459J104

13G

Page 9 of 13 Pages

Item 3	If this statement is filed pursuant to Rules 13d-1(b), or 13d-2(b) or (c), check whether the person filing is a:

	(a)	[__]	Broker or dealer registered under Section 15 of the Exchange Act;

	(b)	[__]	Bank as defined in Section 3(a)(6) of the Exchange Act;

	(c)	[__]	Insurance company as defined in Section 3(a)(19) of the Exchange Act;

	(d)	[__]	Investment company registered under Section 8 of the Investment Company Act;

	(e)	[__]	An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);

	(f)	[__]	An employee benefit plan or endowment fund in accordance with Rule 13d-1(b)(1)(ii)(F);

	(g)	[__]	A parent holding company or control person in accordance with Rule 13d-1(b)(1)(ii)(G);

	(h)	[__]	A savings association as defined in Section 3(b) of the Federal Deposit Insurance Act;

	(i)	[__]	A church plan that is excluded from the definition of an investment company under Section 3(c)(14) of the Investment Company Act;

	(j)	[__]	Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

	If filing as a non-U.S. institution in accordance with Rule 13d-1(b)(1)(ii)(J), please specify the type of institution: ____________.

CUSIP No. 19459J104

13G

Page 10 of 13 Pages

Item 4	Ownership

	A.	Partner Fund Management, L.P. and Partner Fund Management GP, LLC

		(a)	PFM and PFM-GP may be deemed to beneficially own 1,418,141 shares of Common Stock.

		(b)	The number of shares PFM and PFM-GP may be deemed to beneficially own constitutes approximately 5.0% of the Common Stock outstanding.

		(c)	Number of shares as to which such person has:

			(i)	sole power to vote or to direct the vote: 0

			(ii)	shared power to vote or to direct the vote: 1,418,141

			(iii)	sole power to dispose or to direct the disposition of: 0

			(iv)	shared power to dispose or to direct the disposition of: 1,418,141

	B.	Partner Investment Management, L.P. and Partner Investment Management GP, LLC

		(a)	PIM and PIM-GP may be deemed to beneficially own 23,769 shares of Common Stock.

		(b)	The number of shares PIM and PIM-GP may be deemed to beneficially own constitutes approximately 0.1% of the Common Stock outstanding.

		(c)	Number of shares as to which such person has:

			(i)	sole power to vote or to direct the vote: 0

			(ii)	shared power to vote or to direct the vote: 23,769

			(iii)	sole power to dispose or to direct the disposition of: 0

			(iv)	shared power to dispose or to direct the disposition of: 23,769

CUSIP No. 19459J104

13G

Page 11 of 13 Pages

	C.	Brian D. Grossman

		(a)	Grossman may be deemed to beneficially own 1,441,910 shares of Common Stock.

		(b)	The number of shares Grossman may be deemed to beneficially own constitutes approximately 5.0% of the Common Stock outstanding.

		(c)	Number of shares as to which such person has:

			(i)	sole power to vote or to direct the vote: 0

			(ii)	shared power to vote or to direct the vote: 1,441,910

			(iii)	sole power to dispose or to direct the disposition of: 0

			(iv)	shared power to dispose or to direct the disposition of: 1,441,910

	D.	Christopher M. James

		(a)	James may be deemed to beneficially own 1,441,910 shares of Common Stock.

		(b)	The number of shares James may be deemed to beneficially own constitutes approximately 5.0% of the Common Stock outstanding.

		(c)	Number of shares as to which such person has:

			(i)	sole power to vote or to direct the vote: 0

			(ii)	shared power to vote or to direct the vote: 1,441,910

			(iii)	sole power to dispose or to direct the disposition of: 0

			(iv)	shared power to dispose or to direct the disposition of: 1,441,910

Item 5	Ownership of Five Percent or Less of a Class
	If this statement is being filed to report the fact that as of the date hereof the reporting person has ceased to be the beneficial owner of more than 5 percent of the class of securities, check the following ¨.

Item 6	Ownership of More than Five Percent on Behalf of Another Person
	Not Applicable

Item 7	Identification and Classification of the Subsidiary which Acquired the Security Being Reported on by the Parent Holding Company
	See Item 2 above

Item 8	Identification and Classification of Members of the Group
	Not Applicable

CUSIP No. 19459J104

13G

Page 12 of 13 Pages

Item 9	Notice of Dissolution of Group
	Not Applicable

Item 10	Certification
	By signing below I certify that, to the best of my knowledge and belief, the securities referred to above were not acquired and are not held for the purpose of or with the effect of changing or influencing the control of the issuer of the securities and were not acquired and are not held in connection with or as a participant in any transaction having that purpose or effect.

CUSIP No. 19459J104

13G

Page 13 of 13 Pages

After reasonable inquiry and to the best of its knowledge and belief, the undersigned certify that the information set forth in this statement is true, complete and correct.

Dated this 12^th day of December, 2016.

PARTNER FUND MANAGEMENT, L.P.

By: Partner Fund Management GP, LLC

its general partner

By: /s/ Darin Sadow

Darin Sadow, Authorized Signatory

PARTNER FUND MANAGEMENT GP, LLC

By: /s/ Darin Sadow

Darin Sadow, Authorized Signatory

PARTNER INVESTMENT MANAGEMENT, L.P.

By: Partner Investment Management GP, LLC,

its general partner

By: /s/ Darin Sadow

Darin Sadow, Authorized Signatory

PARTNER INVESTMENT MANAGEMENT GP, LLC

By: /s/ Darin Sadow

Darin Sadow, Authorized Signatory

BRIAN D. GROSSMAN

By: /s/ Darin Sadow

Darin Sadow, attorney-in-fact^*

CHRISTOPHER M. JAMES

By: /s/ Darin Sadow

Darin Sadow, attorney-in-fact^**

Darin Sadow is signing on behalf of Brian Grossman as attorney-in-fact pursuant to a power of attorney dated August 4, 2011, and incorporated by reference herein. The power of attorney was filed as an attachment to a filing by certain of the Reporting Persons on Schedule 13G for K-V Pharmaceutical Company on August 5, 2011.

^**

Darin Sadow is signing on behalf of Christopher M. James as attorney-in-fact pursuant to a power of attorney dated August 4, 2011, and incorporated by reference herein. The power of attorney was filed as an attachment to a filing by certain of the Reporting Persons on Schedule 13G for K-V Pharmaceutical Company on August 5, 2011.