AlphaYouJH
Insider selling
Joseph H. Griffith IV sold $65K of 908 Devices Inc. (MASS) stock
Joseph H. Griffith IV, Chief Financial Officer of 908 Devices Inc. (MASS), sold 5,000 shares of MASS stock worth $65K, per an SEC Form 4 filed Oct 8, 2026.
The sale was pre-arranged (a 10b5-1 plan or an option exercise), not a fresh decision.
The trade happened on Oct 6, 2026, 2 days before it was made public.
MASS has moved -4.5% since the trade date, from $12.33 to $11.78 (Oct 7, 2026 close).
- Traded
- Oct 6, 2026
- Disclosed
- Oct 8, 2026
- Filing delay
- 2 days
- Price since
- -4.5%
- Role
- Chief Financial Officer
- Source
- SEC Form 4
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From a public SEC Form 4, linked above. Not investment advice, and not a recommendation to buy or sell.