Christopher D. Brown

Date	Company	Security	Transaction	Code	Indirect	10b5-1	$Price	#Shares	$Value	#Remaining
3 Feb 25	MASS 908 Devices	Common Stock	Sell	Dispose S	No	No	2.3349	3,641	8.50 k	962,122
3 Feb 25	MASS 908 Devices	Common Stock	Sell	Dispose S	No	No	2.3436	2,459	5.76 k	965,763
3 Feb 25	MASS 908 Devices	Common Stock	Sell	Dispose S	No	No	2.3554	1,667	3.93 k	968,222
1 Feb 25	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	0	10,991	0.00	969,889
1 Feb 25	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	0	7,418	0.00	958,898
1 Feb 25	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	0	5,027	0.00	951,480
1 Feb 25	MASS 908 Devices	RSU Common Stock	Option exercise	Dispose M	No	No	0	10,991	0.00	32,974
1 Feb 25	MASS 908 Devices	RSU Common Stock	Option exercise	Dispose M	No	No	0	7,418	0.00	14,836
1 Feb 25	MASS 908 Devices	RSU Common Stock	Option exercise	Dispose M	No	No	0	5,027	0.00	5,027
19 Dec 24	MASS 908 Devices	Common Stock	Option exercise	Acquire M	No	No	1.58	55,131	87.11 k	946,453

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