Form 4: 908 Devices Director Sells Shares
Insider Transaction (Form 4)
Christopher D. Brown, a Director of 908 Devices Inc., sold 30,000 shares of common stock on October 7, 2026 for $11.89 per share.
Summary
- Open-market sale: disposed of 30,000 Common Stock at $11.89 ($356,700) on October 7, 2026; holds 745,559 after (Direct).
- Option exercise/conversion: acquired 60,000 Common Stock at $1.75 ($105,000) on October 7, 2026; holds 805,559 after (Direct).
- Option exercise/conversion: disposed of 60,000 Stock Option (option to buy) on October 7, 2026; holds 54,318 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $356,700 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Christopher D. Brown — Director
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-10-07 | Open-market sale | Common Stock | 30,000 | $12 | $356.7K | 745,559 |
| 2026-10-07 | Option exercise/conversion | Common Stock | 60,000 | $2 | $105.0K | 805,559 |
| 2026-10-07 | Option exercise/conversion | Stock Option (option to buy) | 60,000 | — | — | 54,318 |
Key Dates
| Date | Description |
|---|---|
| 2026-10-07 | Open-market sale (30,000 shares) |
| 2026-10-07 | Option exercise/conversion (60,000 shares) |
| 2026-10-07 | Option exercise/conversion (60,000 shares) |
Keywords
insider transaction, Form 4, MASS, 908 Devices Inc., bearish, Christopher D. Brown
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