Joseph H. Griffith IV sold $125K of MASS stock

Joseph H. Griffith IV, Chief Financial Officer of 908 Devices Inc. (MASS), sold 11,459 shares of MASS stock worth $125K, per an SEC Form 4 filed Aug 27, 2026.

The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.

The trade happened on Aug 25, 2026, 2 days before it was made public.

MASS has moved -4.0% since the trade date, from $11.00 to $10.56 (Nov 6, 2026 close).