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* Nestle Health Science US Holdings, Inc. (Last) (First) (Middle) C/O NESTLE USA, INC. 383 MAIN AVE., 5TH FLOOR (Street) NORWALK CT 06851 (City) (State) (Zip)	2. Issuer Name and Ticker or Trading Symbol Seres Therapeutics, Inc. [ MCRB ]	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) 07/01/2015
	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, $0.001 par value	07/01/2015		A		1,333,333	A	$18	6,888,888	I	See Footnote(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* Nestle Health Science US Holdings, Inc. (Last) (First) (Middle) C/O NESTLE USA, INC. 383 MAIN AVE., 5TH FLOOR (Street) NORWALK CT 06851 (City) (State) (Zip)

1. Name and Address of Reporting Person* NESTLE SA (Last) (First) (Middle) AVE NESTLE 55, CH-1800 (Street) VEVEY V8 (City) (State) (Zip)

1. Name and Address of Reporting Person* NIMCO US, Inc. (Last) (First) (Middle) 383 MAIN AVE., 5TH FLOOR (Street) NORWALK CT 06851 (City) (State) (Zip)

Explanation of Responses:

1. Held by Nestle Health Science US Holdings, Inc. Nestle Health Science US Holdings, Inc. is a wholly owned subsidiary of NIMCO US, Inc., which is a wholly ownd subsidiary of Nestle S.A., a publically traded company. Each of these entities may be deemed to share voting and investment power with respect to all shares held by Nestle Health Science US Holdings, Inc. Each of the filing entities disclaims beneficial ownership of such shares except to the extent of its pecuniary interest therein.

Remarks:

	NESTLE HEALTH SCIENCE US HOLDINGS, INC., By: /s/ James Pepin, Name: James Pepin, Title: President	07/01/2015
	NIMCO US, INC., By: /s/ Yun Au, Name: Yun Au, Title: Chief Legal Officer	07/01/2015
	NESTLE S.A., By: /s/ David P. Frick, Name: David P. Frick, Title: Secretary to the Board of Directors	07/01/2015
	** 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).
** Intentional misstatements or omissions of facts constitute Federal Criminal Violations See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).
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