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SEC FORM 4 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 		 
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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*
BARABE TIMOTHY C
(Last) (First) (Middle)
C/O SELECTA BIOSCIENCES, INC.
480 ARSENAL WAY
(Street)
WATERTOWN MA 02472
(City) (State) (Zip)
2. Issuer Name and Ticker or Trading Symbol
SELECTA BIOSCIENCES INC [ SELB ] 		5. Relationship of Reporting Person(s) to Issuer
(Check all applicable)
X Director 10% Owner
Officer (give title below) Other (specify below)
3. Date of Earliest Transaction (Month/Day/Year)
06/14/2019
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
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
Stock Option (Right to Buy) $2.1 06/14/2019 A 10,000 (1) 06/13/2029 Common Stock 10,000 $0 10,000 D
Explanation of Responses:
1. The option vests in full on the earlier of June 14, 2020 or the day immediately prior to the company's 2020 annual meeting of stockholders.
Remarks:
Exhibit 24 - Power of Attorney
/s/ Elona Kogan, J.D., Attorney-in-Fact for Timothy C. Barabe 06/18/2019
** 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).
Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB Number.
POWER OF ATTORNEY

       With respect to holdings of and transactions in securities issued by Selecta Biosciences, Inc. (the
"Company"), the undersigned hereby constitutes and appoints Peter Handrinos, Elona Kogan, Matthew
Bartholomae, Nicole McNeil and Ann K. Donohue to act as the undersigned's true and lawful attorney-in-fact to:

1.              prepare, execute in the undersigned's name and on the undersigned's behalf, and submit to the United
States Securities and Exchange Commission (the "SEC") a Form ID, including amendments thereto,
and any other documents necessary or appropriate to obtain and/or regenerate codes and passwords
enabling the undersigned to make electronic filings with the SEC of reports required by
Section 16(a) of the Securities Exchange Act of 1934, as amended, or any rule or regulation of the
SEC;

2.              execute for and on behalf of the undersigned, Forms 3, 4, and 5 in accordance with Section 16 of the
Securities Exchange Act of 1934, as amended, and the rules thereunder;

3.              do and perform any and all acts for and on behalf of the undersigned which may be necessary or
desirable to complete and execute any such Form 3, 4, or 5, complete and execute any amendment or
amendments thereto, and timely file such form with the SEC and any stock exchange or similar
authority; and

4.              take any other action of any type whatsoever in connection with the foregoing which, in the opinion of
such attorney-in-fact, may be of benefit to, in the best interest of, or legally required by, the
undersigned, it being understood that the documents executed by such attorney-in-fact on behalf of the
undersigned pursuant to this Power of Attorney shall be in such form and shall contain such terms and
conditions as such attorney-in-fact may approve in such attorney-in-fact's discretion.

       The undersigned hereby grants to each such attorney-in-fact full power and authority to do and perform any
and every act and thing whatsoever requisite, necessary, or proper to be done in the exercise of any of the rights and
powers herein granted, as fully to all intents and purposes as the undersigned might or could do if personally present,
with full power of substitution and resubstitution or revocation, hereby ratifying and confirming all that such
attorney-in-fact, or such attorneys-in-fact substitute or substitutes, shall lawfully do or cause to be done by virtue of
this Power of Attorney and the rights and powers herein granted.

       The undersigned acknowledges that the foregoing attorneys-in-fact, in serving in such capacity at the
request of the undersigned, are not assuming, nor is the Company assuming, any of the undersigned's
responsibilities to comply with Section 16 of the Securities Exchange Act of 1934, as amended.

       This Power of Attorney shall remain in full force and effect until the undersigned is no longer required to
file Forms 3, 4, and 5 with respect to the undersigned's holdings of and transactions in securities issued by Selecta
Biosciences, Inc., unless earlier revoked by the undersigned in a signed writing delivered to the foregoing attorneys-
in-fact.

       IN WITNESS WHEREOF, the undersigned has caused this Power of Attorney to be executed as of this
17th day of June, 2019.


Signature:
/s/ Timothy C. Barabe

Print Name:
Timothy C. Barabe