Mark Spoto

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
13 Jun 24	MASS 908 Devices	Stock Option (option to buy) Common Stock	Grant	Acquire A	No	No	5.94	15,996	95.02 k	15,996
13 Jun 24	MASS 908 Devices	RSU Common Stock	Grant	Acquire A	No	No	0	11,364	0.00	11,364
12 Jun 24	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	0	7,777	0.00	52,971
12 Jun 24	MASS 908 Devices	RSU Common Stock	Option exercise	Dispose M	No	No	0	7,777	0.00	0
15 Jun 23	MASS 908 Devices	Stock Option (option to buy) Common Stock	Grant	Acquire A	No	No	8.68	12,076	104.82 k	12,076
15 Jun 23	MASS 908 Devices	RSU Common Stock	Grant	Acquire A	No	No	0	7,777	0.00	7,777
14 Jun 23	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	0	4,771	0.00	45,194
14 Jun 23	MASS 908 Devices	RSU Common Stock	Option exercise	Dispose M	No	No	0	4,771	0.00	0

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