Sec Form 4/A Filing - Aunins John G. @ Seres Therapeutics, Inc. - 2017-12-19

Insider filing report for Changes in Beneficial Ownership
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FORM 4/A
Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).
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, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940
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1. Name and Address of Reporting Person
Aunins John G.
2. Issuer Name and Ticker or Trading Symbol
Seres Therapeutics, Inc. [ MCRB]
5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
_____ Director _____ 10% Owner
X __ Officer (give title below) _____ Other (specify below)
See Remarks
(Last) (First) (Middle)
C/O SERES THERAPEUTICS, INC., 200 SIDNEY STREET
3. Date of Earliest Transaction (MM/DD/YY)
12/19/2017
(Street)
CAMBRIDGE, MA02139
4. If Amendment, Date Original Filed (MM/DD/YY)
12/20/2017
6. Individual or Joint/Group Filing (Check Applicable Line)
__ X __ Form filed by One Reporting Person
_____ Form filed by More than One Reporting Person
(City) (State) (Zip)
Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned
1.Title of Security
(Instr. 3)
2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 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 12/19/2017 M 5,000 A 197,125 ( 2 ) D
COMMON STOCK 12/19/2017 S 1,623 D $ 10.14 195,502 ( 2 ) D
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 (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 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
(MM/DD/YY)
7. Title and Amount of Underlying Securities
(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 of Derivative Security: 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
Reporting Owners
Reporting Owner Name / Address Relationships
Director 10% Owner Officer Other
Aunins John G.
C/O SERES THERAPEUTICS, INC.
200 SIDNEY STREET
CAMBRIDGE, MA02139
See Remarks
Signatures
/s/ Thomas J. DesRosier, Attorney-in-Fact 01/30/2018
Signature of Reporting Person Date
Explanation of Responses:
( 1 )Each restricted stock unit represents a contingent right to receive one share of Issuer common stock.
( 2 )Due to a clerical error, the reporting person's original Form 4 filed on December 20, 2017 set forth an incorrect amount of common stock beneficially owned by the reporting person following the reported transaction. This Form 4/A corrects the error and presents the correct number of common stock beneficially owned by the reporting person following the reported transaction.

Remarks:
Chief Technology Officer and EVP

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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