Cartesian Therapeutics (RNAC) Form 4/A SELECTA BIOSCIENCES / Lloyd P. Johnston ownership change

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^*

Johnston Lloyd P.

(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)

	Director	10% Owner
X	Officer (give title below)	Other (specify below)
COO and SVP, R&D

3. Date of Earliest Transaction (Month/Day/Year)
06/15/2017

4. If Amendment, Date of Original Filed (Month/Day/Year)
06/19/2017

6. Individual or Joint/Group Filing (Check Applicable Line)

X	Form filed by One Reporting Person
	Form filed by More than One Reporting Person

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	06/15/2017		M		10,512(1)	A	$0.47	12,118	D
Common Stock	06/15/2017		S(2)		10,512(1)	D	$17.0416(3)	1,606	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 (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
Employee Stock Option (right to buy)	$0.47	06/15/2017		M			10,512(1)	(4)	07/23/2019	Common Stock	10,512	$0	10,000	D

Explanation of Responses:

1. On June 19, 2017, the reporting person filed a Form 4 reporting the June 15, 2017 exercise and sale of 20,512 shares of common stock pursuant to a 10b5-1 plan. The reporting person's broker subsequently acknowledged that 10,000 of such 20,512 shares were erroneously exercised and sold by the broker. The exercise and sale of the 10,000 shares was unwound through the broker's error account and therefore did not occur for purposes of the reporting person's account. This Form 4 amends and restates, in their entirety, the transactions reported in the June 19, 2017 Form 4.

2. The sales reported in this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on December 21, 2016.

3. The price reported in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $16.96 to $17.10, inclusive. The reporting person undertakes to provide to Issuer, any security holder of Issuer, or the staff of the Securities and Exchange Commission, upon request, full information regarding the number of shares sold at each separate price within the ranges set forth herein.

4. All shares underlying this option are fully vested.

Remarks:

	/s/ David J. Abraham, Attorney-in-Fact	07/10/2017
	** 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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