AlphaYouKJ
Insider selling
Kevin J. Knopp sold $1.5M of 908 Devices Inc. (MASS) stock
Kevin J. Knopp, President and CEO of 908 Devices Inc. (MASS), sold 149,013 shares of MASS stock worth $1.5M, per an SEC Form 4 filed Aug 12, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Aug 10, 2026, 2 days before it was made public.
MASS has moved +27.0% since the trade date, from $8.80 to $11.18 (Sep 22, 2026 close).
- Traded
- Aug 10, 2026
- Disclosed
- Aug 12, 2026
- Filing delay
- 2 days
- Price since
- +27.0%
- Role
- President and CEO
- Source
- SEC Form 4
More MASS insider and Congress trades
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.