MASS - 908 Devices Inc. - Insider Stock Trading

Filing Date	T Date	Ticker	Sector	Ind	Industry	Owner	oSt	Rel	Title	T	TVal	Price	Qty	oc	Own	H
2/2/24 19:10	2/1/24	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.dm	-109	7.06	-15	-16	80	D
2/2/24 16:40	2/1/24	MASS	Electr	LabEq	Measuring & Controlling Devic	Turner Michael S.	MA	O	Chief Le	S.d	-37	6.99	-5	-36	9	D
2/2/24 16:39	2/1/24	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S.d	-63	7.00	-9	-1	953	D
2/2/24 16:37	2/1/24	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	Chief Pr	S.d	-28	7.01	-4	0	886	D
1/2/24 17:01	12/28/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S	-72	12.08	-6	-7	80	D
12/21/23 16:47	12/19/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S	-51	9.08	-6	-6	86	D
12/21/23 16:46	12/19/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	Chief Pr	S.m	-182	9.10	-20	-2	878	D
6/9/23 16:17	6/7/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	Chief Pr	S	-45	10.03	-4	0	898	D
5/25/23 16:12	5/23/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-100	10.02	-10	-1	892	D
5/25/23 16:08	5/23/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-607	10.12	-60	-6	909	D
2/17/23 16:06	2/15/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S.m	-205	10.25	-20	-2	969	D
2/3/23 17:17	2/1/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Turner Michael S.	MA	O	VP,GC	S.dm	-43	9.72	-4	-100	0	D
2/3/23 17:16	2/1/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S.dm	-458	10.40	-44	-4	989	D
2/3/23 17:16	2/1/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.dm	-50	9.72	-5	-5	92	D
2/3/23 17:15	2/1/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Fitzpatrick Maura	MA	O	VP,Produ	S.d	-15	9.20	-2	-36	3	D
2/3/23 17:14	2/1/23	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S.dm	-115	9.91	-12	-1	902	D
11/17/22 16:25	11/15/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-221	11.04	-20	-2	1,022	D
10/19/22 17:07	10/17/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S.m	-452	15.08	-30	-3	1,042	D
9/19/22 16:21	9/15/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-508	16.94	-30	-3	1,072	D
9/14/22 16:27	9/12/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-392	19.58	-20	-2	909	D
8/18/22 16:22	8/17/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Turner Michael S.	MA	O	VP,GC	S.d	-91	18.15	-5	-100	0	D
8/17/22 16:18	8/15/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-578	19.27	-30	-3	1,102	D
8/5/22 16:18	8/3/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.dm	-325	24.39	-13	-13	92	D
8/3/22 16:16	8/2/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Turner Michael S.	MA	O	VP,GC	S.d	-240	23.96	-10	-100	0	D
8/1/22 17:11	7/28/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S.m	-854	22.28	-38	-3	1,158	D
7/25/22 16:16	7/21/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-4	22.04	0	0	1,196	D
7/19/22 16:30	7/15/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-521	17.37	-30	-2	1,197	D
7/8/22 16:37	7/6/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-213	21.28	-10	-1	929	D
7/8/22 16:35	7/6/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S.m	-32	22.07	-1	0	1,227	D
7/1/22 16:11	6/29/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Turner Michael S.	MA	O	VP,GC	S	-100	20.03	-5	-100	0	D
7/1/22 16:10	6/29/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S.m	-407	20.20	-20	-2	939	D
6/27/22 17:00	6/24/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.dm	-348	19.12	-18	-17	92	D
6/27/22 17:00	6/23/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Turner Michael S.	MA	O	VP,GC	S.d	-179	17.90	-10	-67	5	D
6/22/22 16:08	6/17/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.dm	-135	15.06	-9	-9	92	D
6/22/22 16:07	6/21/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-139	15.07	-9	-1	1,228	D
6/17/22 16:13	6/15/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.d	-15	15.02	-1	-1	92	D
6/17/22 16:12	6/15/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-305	14.66	-21	-2	1,237	D
6/15/22 16:20	6/13/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.d	-181	13.54	-13	-13	92	D
4/14/22 16:20	4/12/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-198	20.07	-10	-100	0	D
4/14/22 16:20	4/12/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-197	20.06	-10	-1	959	D
4/13/22 16:11	4/12/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.d	-296	19.74	-15	-17	75	D
3/21/22 16:43	3/18/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-399	20.06	-20	-100	0	D
3/21/22 16:39	3/18/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-399	20.06	-20	-2	969	D
3/15/22 16:32	3/11/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-2	20.00	0	0	989	D
3/15/22 16:32	3/11/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-2	20.00	0	-100	0	D
3/15/22 16:29	3/14/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.d	-265	17.66	-15	-20	60	D
2/16/22 16:21	2/14/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.dm	-228	15.18	-15	-25	45	D
1/14/22 16:20	1/12/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.d	-291	19.43	-15	-25	45	D
1/12/22 16:36	1/10/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.dm	-201	20.14	-10	-100	0	D
1/7/22 16:09	1/5/22	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-237	23.67	-10	-1	989	D
12/3/21 16:12	12/1/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-239	23.86	-10	-1	999	D
11/18/21 16:13	11/16/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-303	30.32	-10	-100	0	D
11/5/21 16:37	11/5/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S	-109	39.08	-3	-3	89	D
11/4/21 16:18	11/3/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-493	32.86	-15	-1	1,009	D
11/2/21 16:21	11/1/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-692	34.62	-20	-2	1,258	D
10/19/21 16:18	10/18/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-322	32.22	-10	-100	0	D
10/7/21 16:16	10/6/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-485	32.31	-15	-1	1,024	D
10/5/21 18:05	10/1/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-673	33.65	-20	-2	1,278	D
9/27/21 21:37	9/23/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.ad	-226	37.70	-6	-15	35	D
9/24/21 17:15	9/23/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S	-226	37.70	-6	-17	29	D
9/17/21 16:43	9/16/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-366	36.61	-10	-100	0	D
9/10/21 16:22	9/9/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Turner Michael S.	MA	O	VP,GC	S.d	-796	36.41	-22	-81	5	D
9/10/21 16:22	9/8/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S.d	-1,877	37.61	-50	-35	92	D
9/3/21 16:21	9/1/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S	-718	35.91	-20	-2	1,298	D
9/3/21 16:15	9/1/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-539	35.92	-15	-1	1,039	D
8/30/21 16:29	8/27/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.d	-70	34.96	-2	-5	35	D
8/25/21 18:47	8/23/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.dm	-1,272	34.38	-37	-51	35	D
8/18/21 16:57	8/16/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Knopp Kevin J.	MA	DO	P,CEO	S.m	-1,066	30.46	-35	-3	1,318	D
8/17/21 16:19	8/16/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-305	30.45	-10	-100	0	D
8/6/21 16:26	8/4/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-488	32.54	-15	-1	1,054	D
7/27/21 21:02	7/23/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.d	-677	32.25	-21	-38	35	D
7/23/21 19:08	6/23/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP,Corpo	S.adm	-1,666	39.67	-42	-89	5	D
7/20/21 17:43	7/16/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-323	32.27	-10	-100	0	D
7/8/21 18:54	7/7/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Brown Christopher D.	MA	O	CTO	S	-1,177	33.63	-35	-3	1,069	D
6/25/21 21:49	6/23/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Barthelemy Nicolas	MA	DO	VP,Corpo	S.dm	-516	39.72	-13	-49	14	M
6/25/21 21:47	6/23/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Basarsky Trent A.	MA	O	VP Corpo	S.dm	-1,666	39.67	-42	-100	0	D
6/21/21 08:05	6/16/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Griffith Joseph H. IV	MA	O	CFO	S	-700	39.32	-18	-16	92	D
6/21/21 08:05	6/16/21	MASS	Electr	LabEq	Measuring & Controlling Devic	Kenneweg John	MA	O	VP,Gover	S.d	-393	39.27	-10	-100	0	D

D	Derivative transaction in filing (usually option exercise)
M	Multiple transactions in filing; earliest reported transaction date and weighted average transaction price
A	Amended filing
E	Error detected in filing

S - Sale	Sale of securities on an exchange or to another person
S - Sale+OE	Sale of securities on an exchange or to another person (after option exercise)
F - Tax	Payment of exercise price or tax liability using portion of securities received from the company
P - Purchase	Purchase of securities on an exchange or from another person

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