Antoine Awad - Feb 4, 2022 Form 4 Insider Report for SYNLOGIC, INC. (SYBX)

Role: Chief Operating Officer
Signature: /s/ Antoine Awad
Stock symbol: SYBX
Transactions as of: Feb 4, 2022
Transactions value $: $0
Form type: 4
Date filed: 2/8/2022, 03:05 PM
Next filing: Apr 6, 2022

Transactions Table

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Ownership	Footnotes
transaction	SYBX	Common Stock	Award	$0	+40.8K	+94.93%	$0.00	83.8K	Feb 4, 2022	Direct	F1

Derivative Securities (e.g., puts, calls, warrants, options, convertible securities)

Type	Sym	Class	Transaction	Value $	Shares	Change %	* Price $	Shares After	Date	Underlying Class	Amount	Exercise Price	Ownership	Footnotes
transaction	SYBX	Stock Option (right to buy)	Award	$0	+165K		$0.00	165K	Feb 4, 2022	Common Stock	165K	$1.95	Direct	F2

* An asterisk sign (*) next to the price indicates that the price is likely invalid.

Explanation of Responses:

Id	Content
F1	The shares of restricted stock were granted on February 4, 2022, and will vest beginning on April 1, 2022 (the "Vesting Start Date") in four equal annual installments on each anniversary of the Vesting Start Date, subject to the Reporting Person continuing to provide services to the Issuer as Chief Operating Officer through each such vesting date.
F2	The option will vest and become exercisable in equal monthly installments for forty-eight months beginning on the date of the grant, which is February 4, 2022, subject to the Reporting Person continuing to provide services to the Issuer as Chief Operating Officer through each such vesting date.