Insider Transactions of Kevin J. McCallion at 908 Devices Inc.

Kevin J. McCallion, SVP, Products and Production at 908 Devices Inc. (MASS), executed a series of transactions on April 8th and 9th, 2026, under a Rule 10b5-1 trading plan. On April 8th, McCallion acquired 18,580 shares of Common Stock at $1.05 per share and disposed of 18,580 shares at a weighted average price of $7.05 (ranging from $7.00 to $7.25). He also exercised stock options for 18,580 shares. On April 9th, he acquired an additional 5,420 shares at $1.05 per share and disposed of 5,420 shares at a weighted average price of $7.03 (ranging from $7.00 to $7.09). McCallion also exercised stock options for 5,420 shares. Following these transactions, his post-transaction holdings of Common Stock were 44,925 shares, and he held 2,686 stock options.