SYNLOGIC, INC. — Director's Dealing 2018

Nov 1, 2018

SEC Form 4 — Statement of Changes in Beneficial Ownership

Issuer: SYNLOGIC, INC. (SYBX)
CIK: 0001527599
Period of Report: 2018-10-31

Reporting Person: Brennan Aoife (Director, President and CEO)

Derivative Transactions

Date	Security	Exercise Price	Code	Shares	A/D	Expiration	Underlying	Ownership
2018-10-31	Stock Option (right to buy)	$7.91	A	150000	Acquired	2028-10-31	Common Stock (150000)	Direct

Footnotes

F1: The option vests and becomes exercisable as to one-fourth (1/4) of the shares on October 2, 2019, and the remainder will vest at one-forty-eighth (1/48th) of the shares per month thereafter, subject to the Reporting Person continuing to provide services to the Issuer as President and Chief Executive Officer through each such vesting date.