Leonhart Michele M. 4
4 · 908 Devices Inc. · Filed Jun 25, 2026
Research Summary
AI-generated summary of this filing
908 Devices (MASS) Director Michele M. Leonhart Converts RSUs
What Happened
- Michele M. Leonhart, a director of 908 Devices Inc. (MASS), had 6,486 restricted stock units (RSUs) converted into 6,486 shares of common stock on June 25, 2026. The filing shows a simultaneous disposition of 6,486 shares at $0.00. No cash proceeds are reported for the disposition.
Key Details
- Transaction date: 2026-06-25.
- Conversion/Acquisition: 6,486 shares (from RSUs); price not applicable for acquisition.
- Disposition: 6,486 shares at $0.00 (reported value $0).
- Shares owned after transaction: not specified in the provided filing excerpt.
- Footnotes: F1 explains each RSU converts to one share when vested; F2 notes RSUs vest in substantially equal annual installments over three years beginning June 25, 2024, subject to continued service; RSUs have no expiration.
- Filing timeliness: not indicated in the provided data.
Context
- This was a derivative conversion (RSUs → common stock), not an open-market buy or sale. The $0.00 disposition often reflects shares surrendered or transferred for tax withholding or net settlement, but the filing excerpt does not state the reason. The RSUs are subject to a multi-year vesting schedule (see F2).
Insider Transaction Report
Form 4
908 Devices Inc.MASS
Leonhart Michele M.
Director
Transactions
- Exercise/Conversion
Common Stock
[F1]2026-06-25+6,486→ 27,054 total - Exercise/Conversion
Restricted Stock Units
[F1][F2]2026-06-25−6,486→ 6,485 total→ Common Stock (6,486 underlying)
Footnotes (2)
- [F1]Each Restricted Stock Unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.
- [F2]The RSUs become vested in substantially equal annual installments over the 3 years following June 25, 2024, subject to the reporting person's continued service through the applicable vesting date, provided that, if the reporting person terminates their service for any reason, then a prorated number of RSUs will vest. The RSUs have no expiration date.
Signature
/s/ Mark S. Levine, Attorney-in-Fact|2026-06-25