Matthew R. Henn

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
18 Feb 25	MCRB Seres Therapeutics	Common Stock	Sell	Dispose S	No	Yes	0.8104	3,953	3.20 k	84,443
15 Feb 25	MCRB Seres Therapeutics	Common Stock	Option exercise	Acquire M	No	No	0	7,813	0.00	88,396
15 Feb 25	MCRB Seres Therapeutics	Common Stock	Option exercise	Acquire M	No	No	0	2,813	0.00	80,583
15 Feb 25	MCRB Seres Therapeutics	RSU Common Stock	Option exercise	Dispose M	No	No	0	7,813	0.00	23,437
15 Feb 25	MCRB Seres Therapeutics	RSU Common Stock	Option exercise	Dispose M	No	No	0	2,813	0.00	22,500
7 Feb 25	MCRB Seres Therapeutics	Stock Option Common Stock	Grant	Acquire A	No	No	0.782	650,000	508.30 k	650,000
18 Nov 24	MCRB Seres Therapeutics	Common Stock	Sell	Dispose S	No	Yes	0.5407	927	501.23	77,770
15 Nov 24	MCRB Seres Therapeutics	Common Stock	Option exercise	Acquire M	No	No	0	2,812	0.00	78,697
15 Nov 24	MCRB Seres Therapeutics	RSU Common Stock	Option exercise	Dispose M	No	No	0	2,812	0.00	25,313
28 Oct 24	MCRB Seres Therapeutics	Common Stock	Sell	Dispose S	No	Yes	0.6901	3,984	2.75 k	75,885

Data from 3, 4 and 5 filings. Values as filed, not updated for current price.