Updated Jul 16, 2026
Knopp Kevin J. has filed 3 SEC Form 4 filings across 1 company in the last 90 days — selling. Lifetime open-market sales: $793K.
| Date | Ticker | Company | Code | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-07 | MASS | 908 Devices Inc. | S — Open-market sale | 222 | $9.07 | $2K |
| 2026-06-30 | MASS | 908 Devices Inc. | S — Open-market sale | 2.8K | $9.09 | $25K |
| 2026-06-25 | MASS | 908 Devices Inc. | S — Open-market sale | 16.4K | $9.10 | $149K |
| 2026-06-25 | MASS | 908 Devices Inc. | S — Open-market sale | 40.5K | $9.14 | $370K |
| 2026-06-25 | MASS | 908 Devices Inc. | S — Open-market sale | 3.4K | $9.06 | $31K |
| 2026-02-04 | MASS | 908 Devices Inc. | S — Open-market sale | 34.8K | $6.18 | $215K |
| 2026-02-04 | MASS | 908 Devices Inc. | M — Option exercise | 66.3K | — | |
| 2026-02-04 | MASS | 908 Devices Inc. | M — Option exercise | 17.0K | — | |
| 2026-02-04 | MASS | 908 Devices Inc. | M — Option exercise | 13.4K | — | |
| 2026-02-04 | MASS | 908 Devices Inc. | M — Option exercise | 11.3K | — | |
| 2024-12-16 | MASS | 908 Devices Inc. | M — Option exercise | 110.6K | $1.58 | $175K |
| 2024-12-16 | MASS | 908 Devices Inc. | M — Option exercise | 47.4K | $1.75 | $83K |
Knopp Kevin J. is a corporate insider — currently tracked as Insider of 908 Devices Inc. (MASS). InsiderAlpha tracks every SEC Form 4 filing in real time.
3 primary Form 4 filings in the last 90 days, covering 1 company.
Recorded transactions: 0 open-market purchases () and 6 open-market sales ($793K) across all tracked filings.
All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.
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