Michael S. Turner

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
1 Mar 24	MASS 908 Devices	RSU Common Stock, par value $0.001	Grant	Acquire A	No	No	0	43,334	0.00	43,334
1 Mar 24	MASS 908 Devices	Stock Option (option to buy) Common Stock, par value $0.001	Grant	Acquire A	No	No	7.35	59,201	435.13 k	59,201
1 Feb 24	MASS 908 Devices	Common Stock	Sell	Dispose S	No	No	6.9701	3,616	25.20 k	9,105
1 Feb 24	MASS 908 Devices	Common Stock	Sell	Dispose S	No	No	7.0265	1,616	11.35 k	12,721
1 Feb 24	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	0	9,910	0.00	14,337
1 Feb 24	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	0	4,427	0.00	4,427
1 Feb 24	MASS 908 Devices	RSU Common Stock	Option exercise	Dispose M	No	No	0	9,910	0.00	29,728
1 Feb 24	MASS 908 Devices	RSU Common Stock	Option exercise	Dispose M	No	No	0	4,427	0.00	8,854

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