Cartesian Therapeutics, Inc. — Director's Dealing 2017

Apr 18, 2017

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SELECTA BIOSCIENCES INC (SELB)
CIK: 0001453687
Period of Report: 2017-04-17

Reporting Person: Johnston Lloyd P. (COO AND SVP, R&D)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2017-04-17	Common Stock	M	13205	$0.39	Acquired	14811	Direct
2017-04-17	Common Stock	S	13205	$13.95	Disposed	1606	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2017-04-17	Employee Stock Option (right to buy)	$0.39	M	13205	Disposed	2018-07-06	Common Stock (13205)	Direct

Footnotes

F1: 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.

F2: All shares underlying this option are fully vested.