AlphaYouKJ
Insider selling
Kevin J. Knopp sold $284K of 908 Devices Inc. (MASS) stock
Kevin J. Knopp, President and CEO of 908 Devices Inc. (MASS), sold 27,622 shares of MASS stock worth $284K, per an SEC Form 4 filed Aug 17, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Aug 13, 2026, 4 days before it was made public.
MASS has moved +10.6% since the trade date, from $10.11 to $11.18 (Sep 22, 2026 close).
- Traded
- Aug 13, 2026
- Disclosed
- Aug 17, 2026
- Filing delay
- 4 days
- Price since
- +10.6%
- 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.