Joseph H. Griffith IV, Chief Financial Officer at 908 Devices Inc. (MASS), sold 2,800 shares at $39.08 ($109K) on 2021-11-05, disclosed to the SEC on 2021-11-05.
Open-market sale of $109k MASS by Chief Financial Officer. Not flagged as scheduled, tax-driven, or recurring — but no specific bearish signal from our filters. Reasons for insider sales vary widely.
Something here stands out, but not much.
| Filing → |
| MASS | SELL | 2026-02-03 | $143K | — | Filing → |
| MASS | SELL | 2025-10-06 | $45K | — | Filing → |
| MASS | SELL | 2025-09-23 | $35K | — | Filing → |