CHRISTOPHER BROWN plan to sell securities of 908 DEVICES INC under Form 144

CHRISTOPHER BROWN filed Form 144 to notify SEC of plan to sell 70000 units of 908 DEVICES INC securities around 2026-06-03, with aggregate market value of $619,500.00. The total outstanding units is 37813621.0. The amount planned to be sold represents 0.19% of total outstanding units; Recent transactions in past 3 months include: On 05/28/2026, sold 30000 units for $270000.00; On 05/06/2026, sold 20000 units for $144668.00; On 04/10/2026, sold 17578 units for $124192.11; On 04/09/2026, sold 7392 units for $52019.36; On 04/08/2026, sold 15030 units for $105960.75;