Vann Brandi C 4

What Happened
Brandi C. Vann, a director of 908 Devices, was granted two restricted stock unit (RSU) awards on June 11, 2026: 13,656 RSUs and 6,209 RSUs, for a total of 19,865 RSUs. Each RSU represents a contingent right to one share of common stock when vested. The filing records the acquisition price as $0.00 per RSU (derivative award), so the reported acquisition value is $0.

Key Details

• Transaction date: 2026-06-11 (reported in Form 4 filed 2026-06-12) — timely filing.
• Transaction code: A (award/grant); reported as a derivative instrument (RSUs).
• Award amounts: 13,656 RSUs and 6,209 RSUs (total 19,865 RSUs) at $0.00 each.
• Vesting (per footnote): RSUs become fully vested on June 11, 2027 or the day prior to the 2027 annual meeting, whichever is earlier, subject to continued service; prorated vesting applies if service terminates. RSUs have no expiration date. (See footnotes F1 and F2.)
• Shares owned after transaction: not disclosed in this filing.
• Footnote F3 outlines a separate option vesting schedule (monthly over 12 months after June 11, 2026) if applicable to other awards.

Context
This filing documents an equity award (acquisition of RSUs), not a cash purchase or sale of shares. RSU grants are common compensation for executives and directors; they only convert into actual shares when vested, so they do not immediately change outstanding share count. No sale or exercise was reported here.