908 Devices Inc (MASS) insider trading
Every open-market stock purchase and sale by 908 Devices Inc executives, directors, large shareholders and members of Congress, from SEC Form 4 filings. Sector: Other.
Insider activity at a glance
- Kevin J. Knopp (CEO) and 4 others sold $4.7M in the last 90 days.
- Last insider buy: Kevin J. Knopp (CEO), $66.6K, 17 months ago.
Last 12 months: insiders bought $0 (0 buys) and sold $10M (38 sales). Last close $11.35 on Oct 22, 2026.
Recent MASS insider trades
| Date | Insider | Trade | Value |
|---|---|---|---|
| Oct 7, 2026 | Christopher D. Brown (Insider) | Sold | $357K |
| Oct 7, 2026 | Christopher D. Brown (Insider) | Bought (not open market) | $105K |
| Oct 7, 2026 | Christopher D. Brown (Insider) | Bought (not open market) | — |
| Oct 6, 2026 | Joseph H. Griffith IV (CFO) | Sold | $65.2K |
| Sep 29, 2026 | AWM Investment Company Inc. (10% owner) | Sold | $207K |
| Sep 24, 2026 | AWM Investment Company Inc. (10% owner) | Sold | $273K |
| Sep 23, 2026 | AWM Investment Company Inc. (10% owner) | Sold | $11.3K |
| Sep 17, 2026 | John Kenneweg (VP) | Sold | $53.7K |
| Sep 17, 2026 | John Kenneweg (VP) | Bought (not open market) | — |
| Sep 16, 2026 | John Kenneweg (VP) | Sold | $216K |
| Sep 16, 2026 | John Kenneweg (VP) | Bought (not open market) | — |
| Sep 15, 2026 | John Kenneweg (VP) | Sold | $10K |
| Sep 15, 2026 | John Kenneweg (VP) | Bought (not open market) | — |
| Sep 2, 2026 | Christopher D. Brown (Insider) | Sold | $317K |
| Aug 25, 2026 | Joseph H. Griffith IV (CFO) | Sold | $125K |
| Aug 21, 2026 | AWM Investment Company Inc. (10% owner) | Sold | $441K |
| Aug 20, 2026 | AWM Investment Company Inc. (10% owner) | Sold | $88.6K |
| Aug 17, 2026 | Kevin J. Knopp (CEO) | Sold | $207K |
| Aug 13, 2026 | Kevin J. Knopp (CEO) | Sold | $76.7K |
| Aug 12, 2026 | Kevin J. Knopp (CEO) | Sold | $27.7K |
| Aug 11, 2026 | Kevin J. Knopp (CEO) | Sold | $1.1M |
| Aug 11, 2026 | Kevin J. Knopp (CEO) | Sold | $307K |
| Aug 11, 2026 | Christopher D. Brown (Insider) | Sold | $77.1K |
| Aug 10, 2026 | Christopher D. Brown (Insider) | Sold | $85.3K |
| Aug 10, 2026 | Kevin J. Knopp (CEO) | Sold | $3.2K |
Who's trading MASS
- Christopher D. Brown, Insider: sold $2.2M (15 sales), last Oct 7, 2026
- Joseph H. Griffith IV, CFO: sold $397K (4 sales), last Oct 6, 2026
- AWM Investment Company Inc., 10% owner: sold $4.2M (18 sales), last Sep 29, 2026
- John Kenneweg, VP: sold $481K (5 sales), last Sep 17, 2026
- Kevin J. Knopp, CEO: sold $2.6M (12 sales), last Aug 17, 2026
- Brandi C Vann, Insider: other filings, last Aug 1, 2026
- Michele M. Leonhart, Insider: other filings, last Jun 25, 2026
- E Kevin Hrusovsky, Insider: other filings, last Jun 11, 2026
- Anthony Hunt, Insider: other filings, last Jun 11, 2026
- Fenel M Eloi, Insider: other filings, last Jun 11, 2026
- Keith Crandell, Insider: other filings, last Jun 11, 2026
- Mark Spoto, Insider: other filings, last Jun 11, 2026
- Kolawole A. Otitoju, Officer: other filings, last Apr 21, 2026
- Kevin J. McCallion, VP: sold $188K (5 sales), last Apr 10, 2026
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