Brown Christopher D. 4
4 · 908 Devices Inc. · Filed Feb 3, 2026
Research Summary
AI-generated summary of this filing
908 Devices (MASS) Director Christopher D. Brown Receives RSU Shares
What Happened
Christopher D. Brown, a director of 908 Devices, had restricted stock units (RSUs) settle into common stock on February 1, 2026. Three RSU tranches converted into shares: 5,027 shares, 7,418 shares, and 10,992 shares, for a total of 23,437 shares. The Form 4 shows the derivative conversion (transaction code M) with $0.00 reported for the derivative disposition, indicating these were settled RSUs rather than a cash purchase or market sale.
Key Details
- Transaction date: February 1, 2026; Form 4 filed February 3, 2026 (appears timely).
- Specific tranches: 5,027; 7,418; and 10,992 shares — total 23,437 shares.
- Price/value: no cash exchanged for the settlement (derivative disposition listed at $0.00); acquisition price listed as N/A for the converted derivative.
- Shares owned after the transaction: not reported in the provided excerpt of the filing.
- Footnotes: These entries represent RSU settlements. Footnotes indicate the RSUs vest in four substantially equal annual installments based on grant dates (Feb 1, 2022; Feb 1, 2023; and Feb 1, 2024) and have no expiration.
Context
- This was a scheduled RSU vesting/settlement (conversion of RSU derivatives into common shares), not an open-market purchase or sale. The filing’s “Disposed” lines reflect conversion of the derivative instruments into shares rather than a sale of the underlying stock.
- Such vested RSU settlements are common compensation events and do not necessarily indicate the insider’s view on the company’s stock.
Insider Transaction Report
Form 4
908 Devices Inc.MASS
Brown Christopher D.
Director
Transactions
- Exercise/Conversion
Common Stock
[F1]2026-02-01+5,027→ 967,149 total - Exercise/Conversion
Common Stock
[F1]2026-02-01+7,418→ 974,567 total - Exercise/Conversion
Common Stock
[F1]2026-02-01+10,992→ 985,559 total - Exercise/Conversion
Restricted Stock Units
[F1][F2]2026-02-01−5,027→ 0 total→ Common Stock (5,027 underlying) - Exercise/Conversion
Restricted Stock Units
[F1][F3]2026-02-01−7,418→ 7,418 total→ Common Stock (7,418 underlying) - Exercise/Conversion
Restricted Stock Units
[F1][F4]2026-02-01−10,992→ 21,982 total→ Common Stock (10,992 underlying)
Footnotes (4)
- [F1]Each Restricted Stock Unit ("RSU") represents a contingent right to receive, at settlement, one share of Common Stock. This transaction represents the settlement of RSUs in shares of Common Stock on their scheduled vesting date.
- [F2]These RSUs vest in four substantially equal annual installments at the four anniversary dates following February 1, 2022, subject to the reporting person's continued service through the applicable vesting date. The RSUs have no expiration date.
- [F3]These RSUs vest in four substantially equal annual installments at the four anniversary dates following February 1, 2023, subject to the reporting person's continued service through the applicable vesting date. The RSUs have no expiration date.
- [F4]These RSUs vest in four substantially equal annual installments at the four anniversary dates following February 1, 2024, subject to the reporting person's continued service through the applicable vesting date. The RSUs have no expiration date.
Signature
/s/ Mark S. Levine, Attorney-in-Fact|2026-02-03