KJ
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 +19.2% since the trade date, from $10.11 to $12.05 (Oct 9, 2026 close).
- Traded
- Aug 13, 2026
- Disclosed
- Aug 17, 2026
- Filing delay
- 4 days
- Price since
- +19.2%
- Role
- President and CEO
- Source
- SEC Form 4
More MASS insider and Congress trades
- SellMASS · Christopher D. Brown$357KOct 9, 2026
- SellMASS · Joseph H. Griffith IV$65KOct 8, 2026
- SellMASS · Awm Investment Company, Inc.$207KOct 1, 2026
- SellMASS · Awm Investment Company, Inc.$284KSep 25, 2026
- SellMASS · Christopher D. Brown$317KSep 4, 2026
- SellMASS · Joseph H. Griffith IV$125KAug 27, 2026
From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.