Atrium Therapeutics, Inc.·4

Mar 2, 6:00 PM ET

Boyce Sarah 4

4 · Atrium Therapeutics, Inc. · Filed Mar 2, 2026

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Atrium Therapeutics (RNA) Director Sarah Boyce Receives 20,000-Share Award

What Happened
Sarah Boyce, a director of Atrium Therapeutics, received a derivative award on February 27, 2026 covering 20,000 shares. The Form 4 reports the acquisition at $0.00 (i.e., a grant of options/awards rather than a cash purchase). No immediate cash value or exercise price is listed on the reported transaction.

Key Details

  • Transaction date: 2026-02-27 (Form 4 filed 2026-03-02). No late filing flag indicated.
  • Transaction type: Award/Grant of a derivative security (options) for 20,000 shares; acquisition price reported as $0.00.
  • Vesting: Shares underlying the options vest in equal monthly installments over three years, subject to continuous service (footnote).
  • Shares owned after transaction: Not specified in the provided filing.
  • No 10b5-1 plan, tax withholding, or immediate sale reported in this filing.

Context
This was a standard equity compensation grant to a board member rather than an open-market purchase or sale. Such awards are commonly used for long-term incentive pay and do not, by themselves, indicate buying or selling sentiment. The vesting schedule means the shares/options become exercisable incrementally over three years, contingent on continued service.

Insider Transaction Report

Form 4
Period: 2026-02-27
Boyce Sarah
Director
Transactions
  • Award

    Stock Option (Right to Buy)

    [F1]
    2026-02-27+20,00020,000 total
    Exercise: $14.75Exp: 2036-02-27Common Stock (20,000 underlying)
Footnotes (1)
  • [F1]The options were granted on February 27, 2026 and the shares underlying the options vest in equal monthly installments over the three years following the grant date, subject to the Reporting Person's continuous service to the Issuer on each such vesting date.
Signature
/s/ Adam Grajewski, Attorney-in-Fact|2026-03-02

Documents

1 file
  • 4
    ownership.xmlPrimary

    4