SEC Filing Summary

Kevin J. Knopp, President and CEO of 908 Devices Inc., reported the sale of 222 shares of common stock on July 2, 2026, at an average price of $9.07 per share. This transaction was executed as part of a Rule 10b5-1 trading plan. Following the sale, Knopp directly owns 732,603 shares. Additionally, Knopp may be considered the beneficial owner of 541,223 shares held indirectly through The Kevin J. Knopp Irrevocable Trust of 2018, where his brother-in-law has sole voting and dispositive control. The filing was made on Form 4, and the signature date was July 7, 2026.