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* TAS Partners, LLC (Last) (First) (Middle) 36 WOODMAN ROAD (Street) CHESTNUT HILL MA 02467 (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) 06/27/2016
	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	06/27/2016		C		506,015	A	$0	527,028	I	See Footnote(1)(5)
Common Stock	06/27/2016		C		425,874	A	$0	445,576	I	See Footnote(2)(5)
Common Stock	06/27/2016		P		710,000	A	$14	1,237,028	I	See Footnote(1)(5)

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
Series B Convertible Preferred Stock	(3)	06/27/2016		C			157,864	(3)	(3)	Common Stock	157,864	$0	0	I	See Footnote(1)(5)
Series B Convertible Preferred Stock	(3)	06/27/2016		C			157,864	(3)	(3)	Common Stock	157,864	$0	0	I	See Footnote(2)(5)
Series C Convertible Preferred Stock	(3)	06/27/2016		C			153,742	(3)	(3)	Common Stock	153,742	$0	0	I	See Footnote(1)(5)
Series C Convertible Preferred Stock	(3)	06/27/2016		C			93,954	(3)	(3)	Common Stock	93,954	$0	0	I	See Footnote(2)(5)
Series D Convertible Preferred Stock	(3)	06/27/2016		C			63,547	(3)	(3)	Common Stock	63,547	$0	0	I	See Footnote(1)(5)
Series D Convertible Preferred Stock	(3)	06/27/2016		C			51,355	(3)	(3)	Common Stock	51,355	$0	0	I	See Footnote(2)(5)
Series E Convertible Preferred Stock	(4)	06/27/2016		C			84,421	(4)	(4)	Common Stock	130,862	$0	0	I	See Footnote(1)(5)
Series E Convertible Preferred Stock	(4)	06/27/2016		C			79,156	(4)	(4)	Common Stock	122,701	$0	0	I	See Footnote(2)(5)

1. Name and Address of Reporting Person* TAS Partners, LLC (Last) (First) (Middle) 36 WOODMAN ROAD (Street) CHESTNUT HILL MA 02467 (City) (State) (Zip)

1. Name and Address of Reporting Person* Leukon Investments, LP (Last) (First) (Middle) 36 WOODMAN ROAD (Street) CHESTNUT HILL MA 02467 (City) (State) (Zip)

1. Name and Address of Reporting Person* SPRINGER TIMOTHY A (Last) (First) (Middle) 36 WOODMAN ROAD (Street) CHESTNUT HILL MA 02467 (City) (State) (Zip)

Explanation of Responses:

1. Held by Leukon Investments LP ("Leukon").

2. Held by TAS Partners, LLC ("TAS").

3. The preferred stock is convertible at any time, at the holder's election and has no expiration date. The preferred stock automatically converted into common stock on a 1-for-1 basis upon the closing of the Issuer's initial public offering.

4. The Series E Convertible Preferred Stock is convertible at any time, at the holder's election and has no expiration date. The Series E Convertible Preferred Stock automatically converted into common stock on an approximately 1-for-1.550115 basis upon the closing of the Issuer's initial public offering.

5. LKST, Inc. is the general partner of Leukon. Timothy Springer is the president of LKST, Inc. and the managing member of TAS. Each of the reporting persons disclaims beneficial ownership of the securities reported herein except to the extent of their pecuniary interest therein.

	TAS Partners, LLC By: /s/ Timothy A. Springer, Ph.D., Manager	06/29/2016
	Leukon Investments LP By: LKST, Inc., its general partner By: /s/ Timothy A. Springer, Ph.D., President	06/29/2016
	/s/ Timothy A. Springer, Ph.D.	06/29/2016
	** 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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