Cartesian Therapeutics, Inc. — Director's Dealing 2016

Jun 22, 2016

SEC Form 3 — Initial Statement of Beneficial Ownership

Issuer: SELECTA BIOSCIENCES INC (SELB)
CIK: 0001453687
Period of Report: 2016-06-21

Reporting Person: Siewers David (Chief Financial Officer)

Holdings (Non-Derivative)

Security	Shares	Ownership
Common Stock	6923	Direct

Holdings (Derivative)

Security	Exercise Price	Expiration	Underlying	Shares	Ownership
Employee Stock Option (right to buy)	$7.02	2026-03-08	Common Stock (15383)		Direct
Employee Stock Option (right to buy)	$9.36	2025-02-20	Common Stock (10256)		Direct
Employee Stock Option (right to buy)	$8.97	2024-04-07	Common Stock (5128)		Direct
Employee Stock Option (right to buy)	$2.77	2023-06-13	Common Stock (7692)		Direct
Employee Stock Option (right to buy)	$3.44	2022-03-29	Common Stock (8974)		Direct
Employee Stock Option (right to buy)	$2.77	2021-05-09	Common Stock (12307)		Direct
Employee Stock Option (right to buy)	$0.63	2021-02-16	Common Stock (19230)		Direct
Employee Stock Option (right to buy)	$0.63	2020-09-06	Common Stock (15384)		Direct
Employee Stock Option (right to buy)	$0.47	2019-09-19	Common Stock (3846)		Direct

Footnotes

F1: The option vests as to 25% of the shares on February 1, 2017. The remainder of the shares will vest in 36 substantially equal monthly installments thereafter.

F2: The option vested as to 25% of the shares on January 1, 2016. The remainder of the shares vested or will vest in 36 substantially equal monthly installments thereafter.

F3: The option vested as to 25% of the shares on January 1, 2015. The remainder of the shares vested or will vest in 36 substantially equal monthly installments thereafter.

F4: The option vested as to 25% of the shares on January 1, 2014. The remainder of the shares vested or will vest in 36 substantially equal monthly installments thereafter.

F5: All shares underlying this option are fully vested.