Riese Richard J. [Rocket]

Date	Name	Symbol	Type	Security	Shares	Price	Value	Reported
03/10/2021	SYNLOGIC, INC.	SYBX	Grant	Stock Option (right to buy)	70k	$3.50	$245k	03/10/2021
03/10/2021	SYNLOGIC, INC.	SYBX	Grant	Common Stock	17.5k	$0.00	$0	03/10/2021
03/10/2020	SYNLOGIC, INC.	SYBX	Grant	Common Stock	13.5k	$0.00	$0	03/10/2020
03/10/2020	SYNLOGIC, INC.	SYBX	Grant	Stock Option (right to buy)	54k	$1.70	$91.8k	03/10/2020
12/31/2019	SYNLOGIC, INC.	SYBX	Grant	Stock Option (right to buy)	150k	$2.58	$387k	12/31/2019
09/23/2019	SYNLOGIC, INC.	SYBX	Grant	Common Stock	8k	$0.00	$0	09/23/2019