SYNLOGIC, INC. — Director's Dealing 2022

Feb 8, 2022

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SYNLOGIC, INC. (SYBX)
CIK: 0001527599
Period of Report: 2022-02-04

Reporting Person: Awad Antoine (Chief Operating Officer)

Non-Derivative Transactions

Date	Security	Code	Shares	Price	A/D	Holdings After	Ownership
2022-02-04	Common Stock	A	40820	$0.00	Acquired	83820	Direct

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2022-02-04	Stock Option (right to buy)	$1.95	A	165490	Acquired	2032-02-04	Common Stock (165490)	Direct

Footnotes

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.