Knopp Kevin J. (CIK 1836523) reported 18 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-07-07). Recent activity: Sell MASS (222 shares), Sell MASS (2,798 shares), Sell MASS (3,422 shares), Sell MASS (40,535 shares), Sell MASS (16,388 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-07-07 | 908 Devices Inc. (MASS) | President and CEO | Sell | 222 | $2,014 |
| 2026-06-30 | 908 Devices Inc. (MASS) | President and CEO | Sell | 2,798 | $25,434 |
| 2026-06-25 | 908 Devices Inc. (MASS) | President and CEO | Sell | 3,422 | $31,003 |
| 2026-06-25 | 908 Devices Inc. (MASS) | President and CEO | Sell | 40,535 | $370,490 |
| 2026-06-25 | 908 Devices Inc. (MASS) | President and CEO | Sell | 16,388 | $149,131 |
| 2026-02-03 | 908 Devices Inc. (MASS) | President and CEO | Buy | 11,255 | $0 |
| 2026-02-03 | 908 Devices Inc. (MASS) | President and CEO | Buy | 13,449 | $0 |
| 2026-02-03 | 908 Devices Inc. (MASS) | President and CEO | Buy | 17,007 | $0 |
| 2026-02-03 | 908 Devices Inc. (MASS) | President and CEO | Buy | 66,288 | $0 |
| 2026-02-03 | 908 Devices Inc. (MASS) | President and CEO | Sell | 34,764 | $214,842 |
| 2025-05-19 | 908 Devices Inc. (MASS) | President and CEO | Buy | 15,000 | $66,600 |
| 2025-05-14 | 908 Devices Inc. (MASS) | President and CEO | Buy | 15,000 | $64,800 |
| 2025-02-04 | 908 Devices Inc. (MASS) | President and CEO | Buy | 11,254 | $0 |
| 2025-02-04 | 908 Devices Inc. (MASS) | President and CEO | Buy | 13,448 | $0 |
| 2025-02-04 | 908 Devices Inc. (MASS) | President and CEO | Buy | 17,007 | $0 |
| 2025-02-04 | 908 Devices Inc. (MASS) | President and CEO | Sell | 4,318 | $10,061 |
| 2025-02-04 | 908 Devices Inc. (MASS) | President and CEO | Sell | 5,159 | $11,917 |
| 2025-02-04 | 908 Devices Inc. (MASS) | President and CEO | Sell | 6,524 | $15,136 |
Source: SEC Form 4 filings · as of 2026-07-07