SEC Filing | Ocular Therapeutix, Inc.

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	UNITED STATES
	SECURITIES AND EXCHANGE COMMISSION
	Washington, D.C. 20549

SCHEDULE 13G

(Rule 13d-102)

INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT TO RULES 13d-1 (b), (c) AND (d) AND AMENDMENTS THERETO FILED PURSUANT TO 13d-2 (b)

(Amendment No. 1)*

Ocular Therapeutix, Inc.

(Name of Issuer)

Common Stock

(Title of Class of Securities)

675767A100

(CUSIP Number)

December 31, 2015

(Date of Event Which Requires Filing of this Statement)

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

o	Rule 13d-1(b)
o	Rule 13d-1(c)
x	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. 675767A100						13 G

	1	Names of Reporting Persons. Versant Side Fund III, L.P.

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization Delaware, United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 13,007 shares of Common Stock (2)

			6		Shared Voting Power 0 shares

			7		Sole Dispositive Power 13,007 shares of Common Stock (2)

			8		Shared Dispositive Power 0 shares

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 13,007 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 0.1% (3)

	12	Type of Reporting Person* PN

(1) This Schedule 13G is filed by Versant Side Fund III, L.P., a Delaware limited partnership (“VSF III”), Versant Venture Capital III, L.P., a Delaware limited partnership (“VVC III”), Versant Ventures III, LLC, a Delaware limited liability company (“VV III”), Brian G. Atwood (“BGA”), Samuel D. Colella (“SDC”), Ross A. Jaffe (“RAJ”), William J. Link (“WJL”), Donald B. Milder (“DBM”), Rebecca B. Robertson (“RBR”), Bradley J. Bolzon (“BJB”), Charles M. Warden (“CMW”), Robin L. Praeger (“RLP”) and Barbara N. Lubash (“BNL” and together with VSF III, VVC III, VV III, BGA, SDC, RAJ, WJL, DBM, RBR, BJB, CMW and RLP, collectively, the “Reporting Persons”). The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) VV III serves as the sole general partner of VSF III and owns no securities of the Issuer directly. BGA, SDC, RAJ, WJL, DBM, RBR, BJB, CMW, BNL and RLP are managing directors and/or members of VV III and share voting and dispositive power over the shares held by VSF III; however, they disclaim beneficial ownership of the shares held by VSF III except to the extent of their pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

(3) This percentage is calculated based upon 24,734,187 shares of Common Stock outstanding as of October 31, 2015 as set forth in the Issuer’s most recent 10-Q filed with the Securities and Exchange Commissions on November 10, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons. Versant Venture Capital III, L.P.

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization Delaware, United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 2,202,377 shares of Common Stock (2)

			6		Shared Voting Power 0 shares

			7		Sole Dispositive Power 2,202,377 shares of Common Stock (2)

			8		Shared Dispositive Power 0 shares

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,202,377 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 8.9% (3)

	12	Type of Reporting Person* PN

(2) VV III serves as the sole general partner of VVC III and owns no securities of the Issuer directly. BGA, SDC, RAJ, WJL, DBM, RBR, BJB, CMW, BNL and RLP are managing directors and/or members of VV III and share voting and dispositive power over the shares held by VVC III; however, they disclaim beneficial ownership of the shares held by VVC III except to the extent of their pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Versant Ventures III, LLC

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization Delaware, United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* OO

(1) This Schedule 13G is filed by Versant Side Fund III, L.P., a Delaware limited partnership (“VSF III”), Versant Venture Capital III, L.P., a Delaware limited partnership (“VVC III”), Versant Ventures III, LLC, a Delaware limited liability company (“VV III”), Brian G. Atwood (“BGA”), Samuel D. Colella (“SDC”), Ross A. Jaffe (“RAJ”), William J. Link (“WJL”), Donald B. Milder (“DBM”), Rebecca B. Robertson (“RBR”), Bradley J. Bolzon (“BJB”), Charles M. Warden (“CMW”), Robin L. Praeger (“RLP”) and Barbara N. Lubash (“BNL” and together with VSF III, VVC III, VV III, BGA, SDC, RAJ, WJL, DBM, RBR BJB, CMW and RLP, collectively, the “Reporting Persons”). The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. BGA, SDC, RAJ, WJL, DBM, RBR, BJB, CMW, BNL and RLP are managing directors and/or members of VV III and share voting and dispositive power over the shares held by VSF III and VVC III; however, they disclaim beneficial ownership of the shares held by VSF III and VVC III except to the extent of their pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Brian G. Atwood

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. BGA is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Samuel D. Colella

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 Shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 Shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. SDC is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Ross A. Jaffe

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. RAJ is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons William J. Link

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. WJL is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Donald B. Milder

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. DBM is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Rebecca B. Robertson

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. RBR is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, she disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of her pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Bradley J. Bolzon

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization Canada

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. BJB is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

	1	Names of Reporting Persons Charles M. Warden

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 6,944 shares (2)

			6		Shared Voting Power 2,215,384 shares of Common Stock (3)

			7		Sole Dispositive Power 6,944 shares (2)

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (3)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,222,328 shares of Common Stock (2)(3)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (4)

	12	Type of Reporting Person* IN

(2) Includes an option to purchase 6,944 shares of Common Stock which are exercisable within 60 day of December 31, 2015.

(3) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. CMW is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

(4) This percentage is calculated based upon 24,734,187 shares of Common Stock outstanding as of October 31, 2015 as set forth in the Issuer’s most recent 10-Q filed with the Securities and Exchange Commissions on November 10, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Barbara N. Lubash

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(1) This Schedule 13G is filed by Versant Side Fund III, L.P., a Delaware limited partnership (“VSF III”), Versant Venture Capital III, L.P., a Delaware limited partnership (“VVC III”), Versant Ventures III, LLC, a Delaware limited liability company (“VV III”), Brian G. Atwood (“BGA”), Samuel D. Colella (“SDC”), Ross A. Jaffe (“RAJ”), William J. Link (“WJL”), Donald B. Milder (“DBM”), Rebecca B. Robertson (“RBR”), Bradley J. Bolzon (“BJB”), Charles M. Warden (“CMW”), Robin L. Praeger (“RLP”) and Barbara N. Lubash (“BNL” and together with VSF III, VVC III, VV III, BGA, SDC, RAJ, WJL, DBM, RBR BJB, CMW and RLP, collectively, the “Reporting Persons”). The Reporting Persons expressly disclaim status as a “group” for purposes of this Schedule 13G.

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. BNL is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, she disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of her pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

CUSIP No. 675767A100						13 G

	1	Names of Reporting Persons Robin L. Praeger

	2	Check the Appropriate Box if a Member of a Group*
		(a)		o
		(b)		x (1)

	3	SEC Use Only

	4	Citizenship or Place of Organization United States of America

Number of Shares Beneficially Owned by Each Reporting Person With			5		Sole Voting Power 0 shares

			6		Shared Voting Power 2,215,384 shares of Common Stock (2)

			7		Sole Dispositive Power 0 shares

			8		Shared Dispositive Power 2,215,384 shares of Common Stock (2)

	9	Aggregate Amount Beneficially Owned by Each Reporting Person 2,215,384 shares of Common Stock (2)

	10	Check Box if the Aggregate Amount in Row (9) Excludes Certain Shares* o

	11	Percent of Class Represented by Amount in Row 9 9% (3)

	12	Type of Reporting Person* IN

(2) Includes: (i) 13,007 shares held by VSF III; and (ii) 2,202,377 shares held by VVC III. VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. RLP is a managing director and/or member of VV III and shares voting and dispositive power over the shares held by VSF III and VVC III; however, he disclaims beneficial ownership of the shares held by VSF III and VVC III except to the extent of his pecuniary interests therein. The information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015.

Introductory Note: This Statement on Schedule 13G is filed on behalf of the Reporting Persons, in respect of shares of Common Stock, par value $0.0001 per share (“Common Stock”), of Ocular Therapeutix, Inc. (the “Issuer”).

Item 1
		(a)	Name of Issuer: Ocular Therapeutix, Inc.
			Address of Issuer’s Principal Executive Offices: 34 Crosby Drive, Suite 105 Bedford, MA 01730

Item 2
		(a)	Name of Person(s) Filing: Versant Side Fund III, L.P. (“VSF III”) Versant Venture Capital III, L.P. (“VVC III”) Versant Ventures III, LLC (“VV III”) Brian G. Atwood (“BGA”) Samuel D. Colella (“SDC”) Ross A. Jaffe (“RAJ”) William J. Link (“WJL”) Donald B. Milder (“DBM”) Rebecca B. Robertson (“RBR”) Bradley J. Bolzon (“BJB”) Charles M. Warden (“CMW”) Barbara N. Lubash (“BNL”) Robin L. Praeger (“RLP”)
		(b)	Address of Principal Business Office: c/o Versant Venture Management, LLC One Sansome Street, Suite 3630 San Francisco, CA 94104
		(b)	Citizenship:
			Entities:	VSF III	-	Delaware, United States of America
				VVC III	-	Delaware, United States of America
				VV III	-	Delaware, United States of America
			Individuals:	BGA	-	United States of America
				SDC	-	United States of America
				RAJ	-	United States of America
				WJL	-	United States of America
				DBM	-	United States of America
				RBR	-	United States of America
				BJB	-	Canada
				CMW	-	United States of America
				BNL	-	United States of America
				RLP	-	United States of America

		(d)	Title of Class of Securities: Common Stock
		(e)	CUSIP Number: 675767A100

Item 3	Not applicable.

Item 4	Ownership.
The following information with respect to the ownership of the Common Stock by the Reporting Persons filing this statement on Schedule 13G is provided as of December 31, 2015:

Reporting Persons (1)	Shares Held Directly	Sole Voting Power	Shared Voting Power	Sole Dispositive Power	Shared Dispositive Power	Beneficial Ownership	Percentage of Class (2)
VSF III	13,007	13,007	0	13,007	0	13,007	0.1	%
VVC III	2,202,377	2,202,377	0	2,202,377	0	2,202,377	8.9	%
VV III	0	0	2,215,384	0	2,215,384	2,215,384	9	%
BGA	0	0	2,215,384	0	2,215,384	2,215,384	9	%
SDC	0	0	2,215,384	0	2,215,384	2,215,384	9	%
RAJ	0	0	2,215,384	0	2,215,384	2,215,384	9	%
WJL	0	0	2,215,384	0	2,215,384	2,215,384	9	%
DBM	0	0	2,215,384	0	2,215,384	2,215,384	9	%
RBR	0	0	2,215,384	0	2,215,384	2,215,384	9	%
BJB	0	0	2,215,384	0	2,215,384	2,215,384	9	%
CMW	6,944	6,944	2,215,384	6,944	2,215,384	2,222,328	9	%
BNL	0	0	2,215,384	0	2,215,384	2,215,384	9	%
RLP	0	0	2,215,384	0	2,215,384	2,215,384	9	%

(1) VV III serves as the sole general partner of VSF III and VVC III and owns no securities of the Issuer directly. BGA, SDC, RAJ, WJL, DBM, RBR, BJB, CMW, BNL and RLP are managing directors and/or members of VV III and share voting and dispositive power over the shares held by VSF III and VVC III; however, they disclaim beneficial ownership of the shares held by VSF III and VVC III except to the extent of their pecuniary interests therein.
(2) This percentage is calculated based upon 24,734,187 shares of Common Stock outstanding as of October 31, 2015.

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 Persons have ceased to be the beneficial owner of more than five percent of the class of securities, check the following: o

Item 6	Ownership of More than Five Percent on Behalf of Another Person.
See Items 2(a) and 4.

Item 7	Identification and Classification of the Subsidiary Which Acquired the Security Being Reported on By the Parent Holding Company.
Not applicable.

Item 8	Identification and Classification of Members of the Group.
Not applicable.

Item 9	Notice of Dissolution of Group.
Not applicable.

Item 10	Certification.
	Not applicable.

SIGNATURE

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

Dated: February 9, 2016

Versant Side Fund III, L.P.

By:	Versant Ventures III, LLC
Its:	General Partner

By:	/s/ Robin L. Praeger
	Authorized Representative

Versant Venture Capital III, L.P.

By:	Versant Ventures III, LLC
Its:	General Partner

By:	/s/ Robin L. Praeger
	Authorized Representative

Versant Ventures III, LLC


By:	/s/ Robin L. Praeger
	Managing Member


/s/ Robin L. Praeger as attorney in fact
Brian G. Atwood

/s/ Robin L. Praeger as attorney in fact
Samuel D. Colella

/s/ Robin L. Praeger as attorney in fact
Ross A. Jaffe

/s/ Robin L. Praeger as attorney in fact
William J. Link

/s/ Robin L. Praeger as attorney in fact
Donald B. Milder

/s/ Robin L. Praeger as attorney in fact
Rebecca B. Robertson

/s/ Robin L. Praeger as attorney in fact
Bradley J. Bolzon

/s/ Robin L. Praeger as attorney in fact
Charles M. Warden

/s/ Robin L. Praeger as attorney in fact
Barbara N. Lubash

/s/ Robin L. Praeger
Robin L. Praeger

Exhibit(s):

A - Joint Filing Statement

EXHIBIT A

JOINT FILING STATEMENT

We, the undersigned, hereby express our agreement that the attached Schedule 13G (or any amendments thereto) relating to the Common Stock of Ocular Therapeutix, Inc. is filed on behalf of each of us.

Dated: February 9, 2015

Versant Side Fund III, L.P.

By:	Versant Ventures III, LLC
Its:	General Partner

By:	/s/ Robin L. Praeger
	Authorized Representative

Versant Venture Capital III, L.P.

By:		Versant Ventures III, LLC
Its:		General Partner

By:		/s/ Robin L. Praeger
		Authorized Representative

Versant Ventures III, LLC


By:		/s/ Robin L. Praeger
		Managing Member


/s/ Robin L. Praeger as attorney in fact
Brian G. Atwood

/s/ Robin L. Praeger as attorney in fact
Samuel D. Colella

/s/ Robin L. Praeger as attorney in fact
Ross A. Jaffe

/s/ Robin L. Praeger as attorney in fact
William J. Link

/s/ Robin L. Praeger as attorney in fact
Donald B. Milder

/s/ Robin L. Praeger as attorney in fact
Rebecca B. Robertson

/s/ Robin L. Praeger as attorney in fact
Bradley J. Bolzon

/s/ Robin L. Praeger as attorney in fact
Charles M. Warden


/s/ Robin L. Praeger as attorney in fact
Barbara N. Lubash

/s/ Robin L. Praeger
Robin L. Praeger