Kevin J. Knopp

MASS

Kevin J. Knopp serves as President and CEO at 908 Devices Inc. (MASS). This page tracks their complete SEC Form 4 insider trading history including stock purchases and sales.

Total Buys

7 trades

$424.8K

Total Sells

21 trades

$9.01M

Net Position

Net Seller

$8.59M

Companies Traded

MASS

Active Period

Aug 2021 – Feb 2026

28 total trades

Most Recent

Sell MASS

Feb 1, 2026 · $214.8K

Kevin J. Knopp's Insider Trading at 908 Devices Inc. (MASS)

Buys

7 · $424.8K

Sells

21 · $9.01M

Total Shares Bought

80,000

Total Shares Sold

515,081

MASS Price Chart

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Date	Type	Shares	Avg Price	Value	Shares After
Feb 1, 2026	Sell	34,764	$6.18	$214.8K	0
May 15, 2025	Buy	15,000	$4.44	$66.6K	0
May 14, 2025	Buy	15,000	$4.32	$64.8K	0
Feb 4, 2025	Sell	16,001	$2.32	$37.1K	704,416
May 13, 2024	Buy	10,000	$6.42	$64.2K	508,981
May 10, 2024	Buy	10,000	$5.77	$57.7K	498,981
May 9, 2024	Buy	10,000	$5.83	$58.3K	488,981
May 8, 2024	Buy	10,000	$5.72	$57.2K	478,981
May 7, 2024	Buy	10,000	$5.60	$56.0K	468,981
Feb 2, 2024	Sell	9,071	$7.00	$63.5K	416,953
May 25, 2023	Sell	60,000	$10.12	$607.2K	367,848
Feb 17, 2023	Sell	20,000	$10.25	$205.0K	432,690
Feb 3, 2023	Sell	44,049	$10.40	$458.3K	487,848
Nov 17, 2022	Sell	20,000	$11.04	$220.8K	488,274
Oct 19, 2022	Sell	30,000	$15.08	$452.4K	519,442
Sep 19, 2022	Sell	30,000	$16.94	$508.2K	530,642
Aug 17, 2022	Sell	30,000	$19.27	$578.1K	563,015
Aug 9, 2022	Sell	26,196	$25.32	$663.2K	590,928
Aug 1, 2022	Sell	38,347	$22.28	$854.4K	649,485
Jul 25, 2022	Sell	200	$22.04	$4.4K	655,185
Jul 19, 2022	Sell	30,000	$17.37	$521.1K	673,616
Jul 8, 2022	Sell	1,453	$22.07	$32.1K	685,838
Jun 22, 2022	Sell	9,200	$15.07	$138.6K	686,838
Jun 17, 2022	Sell	20,800	$14.66	$304.9K	698,038
Nov 2, 2021	Sell	20,000	$34.62	$692.4K	732,941
Oct 5, 2021	Sell	20,000	$33.65	$673.0K	747,139
Sep 3, 2021	Sell	20,000	$35.91	$718.2K	771,239
Aug 18, 2021	Sell	35,000	$30.46	$1.07M	808,395