Otitoju Kolawole A. 4

4 · 908 Devices Inc. · Filed Apr 22, 2026

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Updated Apr 22, 2026

908 Devices (MASS) Chief Bus. & Strategy Officer Otitoju Receives Award

What Happened

Otitoju Kolawole A., Chief Business & Strategy Officer of 908 Devices (MASS), was granted two equity awards on 2026-04-21 totaling 256,982 derivative shares: 146,789 shares (derivative option) and 110,193 restricted stock units (RSUs). Both grants show an acquisition price of $0.00 in the filing (i.e., they are awards/derivatives, not cash purchases).

Key Details

Transaction date: 2026-04-21; Form 4 filed 2026-04-22 (timely filing).
Award amounts and reported price: 146,789 derivative shares @ $0.00; 110,193 derivative shares (RSUs) @ $0.00.
Shares owned after transaction: Not specified in the provided filing excerpt.
Footnotes of note:
- F1: The 146,789 grant appears to be an option with vesting: one-third vests on May 1, 2027; remaining two-thirds vest in substantially equal monthly installments over the following 24 months, subject to continued service.
- F2/F3: The 110,193 RSUs each convert to one share when vested; they vest in three substantially equal annual installments on the anniversaries following May 1, 2026 and have no expiration date.
No sales or exercises reported; these are grant/award transactions (code A), not immediate cashless exercises or open-market trades.

Context

These are compensation-related awards, not purchases or sales—so they reflect company equity compensation rather than a direct market sentiment signal. The option grant has a multi-year vesting schedule; the RSUs vest annually over three years. No immediate disposition of shares was reported.

Form 4

Period: 2026-04-21

Chief Bus. & Strategy Officer

Transactions

Award
Stock Option (right to buy)
[F1]
2026-04-21+146,789→ 146,789 total
Exercise: $7.26Exp: 2036-04-20→ Common Stock (146,789 underlying)
Award
Restricted Stock Units
[F2][F3]
2026-04-21+110,193→ 110,193 total
→ Common Stock (110,193 underlying)

Footnotes (3)

[F1]One-third of the shares underlying the option become vested and exercisable on May 1, 2027, and the remaining two-thirds of the shares underlying the option become vested and exercisable in substantially equal monthly installments over the 24 months following May 1, 2027, subject to the reporting person's continued service through the applicable vesting date.
[F2]Each restricted stock unit ("RSU") represents a contingent right to receive one share of Common Stock, par value $0.001, when vested.
[F3]These RSUs vest in three substantially equal annual installments at the three anniversary dates following May 1, 2026, 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|2026-04-22

1 file