Knopp Kevin J.

Insider CIK 1836523 · MASS President and CEO, Director

Track record PRO

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Track record

See how this insider's past purchases performed 30 and 90 days later, and a conviction score on each buy.

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Trades across companies

Ticker	Code	Trade	Filed	Shares	Price	Value	Owned after
MASS 908 Devices Inc.	S Sale	2026-08-17	2026-08-17	20,000	$10.35	$207.0K	555,968	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-17	2026-08-17	20,000	$10.35	$207.0K	555,968	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-13	2026-08-17	7,622	$10.06	$76.7K	575,968	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-13	2026-08-17	7,622	$10.06	$76.7K	575,968	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-12	2026-08-12	2,747	$10.07	$27.7K	583,590	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-12	2026-08-12	2,747	$10.07	$27.7K	583,590	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-11	2026-08-12	115,748	$9.83	$1.14M	616,507	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-11	2026-08-12	30,170	$10.16	$306.5K	586,337	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-11	2026-08-12	30,170	$10.16	$306.5K	586,337	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-11	2026-08-12	115,748	$9.83	$1.14M	616,507	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-10	2026-08-12	348	$9.06	$3.2K	732,255	SEC↗
MASS 908 Devices Inc.	S Sale	2026-08-10	2026-08-12	348	$9.06	$3.2K	732,255	SEC↗
MASS 908 Devices Inc.	S Sale	2026-07-02	2026-07-07	222	$9.07	$2.0K	732,603	SEC↗
MASS 908 Devices Inc.	S Sale	2026-06-26	2026-06-30	2,798	$9.09	$25.4K	732,825	SEC↗
MASS 908 Devices Inc.	S Sale	2026-06-25	2026-06-25	16,388	$9.10	$149.1K	735,623	SEC↗
MASS 908 Devices Inc.	S Sale	2026-06-24	2026-06-25	40,535	$9.14	$370.5K	752,011	SEC↗
MASS 908 Devices Inc.	S Sale	2026-06-23	2026-06-25	3,422	$9.06	$31.0K	792,546	SEC↗
MASS 908 Devices Inc.	A Award deriv	2026-02-02	2026-02-03	205,978	—	$0	205,978	SEC↗
MASS 908 Devices Inc.	A Award deriv	2026-02-02	2026-02-03	90,043	—	$0	90,043	SEC↗
MASS 908 Devices Inc.	S Sale	2026-02-02	2026-02-03	34,764	$6.18	$214.8K	795,968	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2026-02-01	2026-02-03	17,007	—	$0	34,014	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2026-02-01	2026-02-03	13,449	—	$0	13,448	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2026-02-01	2026-02-03	11,255	—	$0	0	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2026-02-01	2026-02-03	66,288	—	$0	132,576	SEC↗
MASS 908 Devices Inc.	M Exercise	2026-02-01	2026-02-03	11,255	—	$0	733,988	SEC↗
MASS 908 Devices Inc.	M Exercise	2026-02-01	2026-02-03	13,449	—	$0	747,437	SEC↗
MASS 908 Devices Inc.	M Exercise	2026-02-01	2026-02-03	17,007	—	$0	764,444	SEC↗
MASS 908 Devices Inc.	M Exercise	2026-02-01	2026-02-03	66,288	—	$0	830,732	SEC↗
MASS 908 Devices Inc.	P Buy	2025-05-15	2025-05-19	15,000	$4.44	$66.6K	722,733	SEC↗
MASS 908 Devices Inc.	P Buy	2025-05-14	2025-05-14	15,000	$4.32	$64.8K	707,733	SEC↗
MASS 908 Devices Inc.	A Award deriv	2025-03-03	2025-03-05	90,518	—	$0	90,518	SEC↗
MASS 908 Devices Inc.	A Award deriv	2025-03-03	2025-03-05	198,864	—	$0	198,864	SEC↗
MASS 908 Devices Inc.	S Sale	2025-02-03	2025-02-04	4,318	$2.33	$10.1K	704,416	SEC↗
MASS 908 Devices Inc.	S Sale	2025-02-03	2025-02-04	5,159	$2.31	$11.9K	699,257	SEC↗
MASS 908 Devices Inc.	S Sale	2025-02-03	2025-02-04	6,524	$2.32	$15.1K	692,733	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2025-02-01	2025-02-04	13,448	—	$0	26,897	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2025-02-01	2025-02-04	11,254	—	$0	11,255	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2025-02-01	2025-02-04	17,007	—	$0	51,021	SEC↗
MASS 908 Devices Inc.	M Exercise	2025-02-01	2025-02-04	17,007	—	$0	708,734	SEC↗
MASS 908 Devices Inc.	M Exercise	2025-02-01	2025-02-04	11,254	—	$0	678,279	SEC↗
MASS 908 Devices Inc.	M Exercise	2025-02-01	2025-02-04	13,448	—	$0	691,727	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2024-12-13	2024-12-16	110,626	—	$0	0	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2024-12-13	2024-12-16	47,418	—	$0	0	SEC↗
MASS 908 Devices Inc.	M Exercise	2024-12-13	2024-12-16	110,626	$1.58	$174.8K	667,025	SEC↗
MASS 908 Devices Inc.	M Exercise	2024-12-13	2024-12-16	47,418	$1.75	$83.0K	556,399	SEC↗
MASS 908 Devices Inc.	P Buy	2024-05-13	2024-05-13	10,000	$6.42	$64.2K	508,981	SEC↗
MASS 908 Devices Inc.	P Buy	2024-05-10	2024-05-10	10,000	$5.77	$57.7K	498,981	SEC↗
MASS 908 Devices Inc.	P Buy	2024-05-09	2024-05-09	10,000	$5.83	$58.3K	488,981	SEC↗
MASS 908 Devices Inc.	P Buy	2024-05-08	2024-05-08	10,000	$5.72	$57.2K	478,981	SEC↗
MASS 908 Devices Inc.	P Buy	2024-05-07	2024-05-07	10,000	$5.60	$56.0K	468,981	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2024-04-16	2024-04-16	47,000	—	$0	47,418	SEC↗
MASS 908 Devices Inc.	M Exercise	2024-04-16	2024-04-16	47,000	$1.75	$82.3K	458,981	SEC↗
MASS 908 Devices Inc.	A Award deriv	2024-03-01	2024-03-05	92,937	—	$0	92,937	SEC↗
MASS 908 Devices Inc.	A Award deriv	2024-03-01	2024-03-05	68,028	—	$0	68,028	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2024-02-01	2024-02-02	13,449	—	$0	40,345	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2024-02-01	2024-02-02	11,255	—	$0	22,509	SEC↗
MASS 908 Devices Inc.	M Exercise	2024-02-01	2024-02-02	13,449	—	$0	421,052	SEC↗
MASS 908 Devices Inc.	M Exercise	2024-02-01	2024-02-02	11,255	—	$0	407,603	SEC↗
MASS 908 Devices Inc.	S Sale	2024-02-01	2024-02-02	4,972	$7.02	$34.9K	411,981	SEC↗
MASS 908 Devices Inc.	S Sale	2024-02-01	2024-02-02	4,099	$6.97	$28.6K	416,953	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2023-06-05	2023-06-05	28,500	$1.75	$49.9K	94,418	SEC↗
MASS 908 Devices Inc.	M Exercise	2023-06-05	2023-06-05	28,500	$1.75	$49.9K	396,348	SEC↗
MASS 908 Devices Inc.	S Sale	2023-05-23	2023-05-25	60,000	$10.12	$607.2K	367,848	SEC↗
MASS 908 Devices Inc.	A Award deriv	2023-03-01	2023-03-16	53,794	—	$0	53,794	SEC↗
MASS 908 Devices Inc.	A Award deriv	2023-03-01	2023-03-16	53,794	—	$0	53,794	SEC↗
MASS 908 Devices Inc.	S Sale	2023-02-16	2023-02-17	4,842	$10.12	$49.0K	427,848	SEC↗
MASS 908 Devices Inc.	S Sale	2023-02-15	2023-02-17	15,158	$10.29	$156.0K	432,690	SEC↗
MASS 908 Devices Inc.	S Sale	2023-02-02	2023-02-03	40,000	$10.51	$420.4K	447,848	SEC↗
MASS 908 Devices Inc.	M Exercise deriv	2023-02-01	2023-02-03	11,255	—	$0	33,764	SEC↗
MASS 908 Devices Inc.	M Exercise	2023-02-01	2023-02-03	11,255	—	$0	491,897	SEC↗
MASS 908 Devices Inc.	S Sale	2023-02-01	2023-02-03	4,049	$9.36	$37.9K	487,848	SEC↗
MASS 908 Devices Inc.	S Sale	2022-11-15	2022-11-17	1,013	$12.40	$12.6K	480,642	SEC↗
MASS 908 Devices Inc.	S Sale	2022-11-15	2022-11-17	6,619	$11.76	$77.8K	481,655	SEC↗
MASS 908 Devices Inc.	S Sale	2022-11-15	2022-11-17	12,368	$10.54	$130.4K	488,274	SEC↗
MASS 908 Devices Inc.	S Sale	2022-10-18	2022-10-19	18,800	$15.32	$288.0K	500,642	SEC↗
MASS 908 Devices Inc.	S Sale	2022-10-17	2022-10-19	11,200	$14.68	$164.4K	519,442	SEC↗
MASS 908 Devices Inc.	S Sale	2022-09-15	2022-09-19	30,000	$16.94	$508.2K	530,642	SEC↗
MASS 908 Devices Inc.	S Sale	2022-08-15	2022-08-17	27,627	$19.23	$531.3K	563,015	SEC↗
MASS 908 Devices Inc.	S Sale	2022-08-15	2022-08-17	2,373	$19.72	$46.8K	560,642	SEC↗
MASS 908 Devices Inc.	S Sale	2022-08-08	2022-08-09	286	$25.17	$7.2K	590,642	SEC↗
MASS 908 Devices Inc.	S Sale	2022-08-05	2022-08-09	25,910	$25.32	$656.0K	590,928	SEC↗
MASS 908 Devices Inc.	S Sale	2022-08-01	2022-08-01	14,647	$22.46	$329.0K	616,838	SEC↗
MASS 908 Devices Inc.	S Sale	2022-07-29	2022-08-01	18,000	$22.22	$400.0K	631,485	SEC↗
MASS 908 Devices Inc.	S Sale	2022-07-28	2022-08-01	5,700	$22.01	$125.5K	649,485	SEC↗
MASS 908 Devices Inc.	S Sale	2022-07-21	2022-07-25	200	$22.04	$4.4K	655,185	SEC↗
MASS 908 Devices Inc.	S Sale	2022-07-15	2022-07-19	11,769	$16.80	$197.7K	673,616	SEC↗
MASS 908 Devices Inc.	S Sale	2022-07-15	2022-07-19	18,231	$17.74	$323.4K	655,385	SEC↗
MASS 908 Devices Inc.	S Sale	2022-07-08	2022-07-08	453	$22.06	$10.0K	685,385	SEC↗
MASS 908 Devices Inc.	S Sale	2022-07-06	2022-07-08	1,000	$22.07	$22.1K	685,838	SEC↗
MASS 908 Devices Inc.	S Sale	2022-06-21	2022-06-22	9,200	$15.07	$138.6K	686,838	SEC↗
MASS 908 Devices Inc.	S Sale	2022-06-15	2022-06-17	2,000	$15.01	$30.0K	696,038	SEC↗
MASS 908 Devices Inc.	S Sale	2022-06-15	2022-06-17	18,800	$14.62	$274.9K	698,038	SEC↗
MASS 908 Devices Inc.	A Award deriv	2022-03-01	2022-03-03	45,019	—	$0	45,019	SEC↗
MASS 908 Devices Inc.	A Award deriv	2022-03-01	2022-03-03	74,776	—	$0	74,776	SEC↗
MASS 908 Devices Inc.	S Sale	2021-11-01	2021-11-02	8,328	$35.27	$293.7K	716,838	SEC↗
MASS 908 Devices Inc.	S Sale	2021-11-01	2021-11-02	7,775	$34.38	$267.3K	725,166	SEC↗
MASS 908 Devices Inc.	S Sale	2021-11-01	2021-11-02	3,897	$33.71	$131.4K	732,941	SEC↗
MASS 908 Devices Inc.	S Sale	2021-10-01	2021-10-05	4,829	$33.73	$162.9K	742,310	SEC↗
MASS 908 Devices Inc.	S Sale	2021-10-01	2021-10-05	9,699	$32.89	$319.0K	747,139	SEC↗
MASS 908 Devices Inc.	S Sale	2021-10-01	2021-10-05	5,472	$34.93	$191.1K	736,838	SEC↗
MASS 908 Devices Inc.	S Sale	2021-09-01	2021-09-03	5,599	$35.40	$198.2K	771,239	SEC↗
MASS 908 Devices Inc.	S Sale	2021-09-01	2021-09-03	10,818	$36.02	$389.7K	760,421	SEC↗
MASS 908 Devices Inc.	S Sale	2021-09-01	2021-09-03	3,583	$36.37	$130.3K	756,838	SEC↗
MASS 908 Devices Inc.	S Sale	2021-08-18	2021-08-18	12,000	$30.44	$365.3K	776,838	SEC↗
MASS 908 Devices Inc.	S Sale	2021-08-17	2021-08-18	4,000	$30.01	$120.0K	788,838	SEC↗
MASS 908 Devices Inc.	S Sale	2021-08-16	2021-08-18	3,443	$31.22	$107.5K	808,395	SEC↗
MASS 908 Devices Inc.	S Sale	2021-08-16	2021-08-18	6,035	$30.76	$185.6K	802,360	SEC↗
MASS 908 Devices Inc.	S Sale	2021-08-16	2021-08-18	9,522	$30.22	$287.8K	792,838	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2021-04-30	8,459	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2021-04-30	2,638	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2021-04-30	12,688	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2021-04-30	37,845	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2021-04-30	25,229	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2021-04-30	1,758	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion	2020-12-22	2021-04-30	35,446	—	$0	541,223	SEC↗
MASS 908 Devices Inc.	C Conversion	2020-12-22	2021-04-30	53,171	—	$0	811,838	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2020-12-22	21,147	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2020-12-22	63,074	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion deriv	2020-12-22	2020-12-22	4,396	—	$0	0	SEC↗
MASS 908 Devices Inc.	C Conversion	2020-12-22	2020-12-22	88,617	—	$0	1,353,061	SEC↗