DEEP FISSION, INC.·4

Mar 10, 5:25 PM ET

Brasel Michael Allen 4

4 · DEEP FISSION, INC. · Filed Mar 10, 2026

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Deep Fission COO Michael Brasel Receives 445,000-Share Award

What Happened Michael Brasel, Chief Operating Officer of Deep Fission, was granted a derivative award on March 9, 2026 representing 445,000 shares. The grant was reported as acquired at $0.00 per share (no cash paid), and the filing classifies the transaction as an award/grant (code A). This is not a sale or open-market purchase — it’s a compensation award that vests over time.

Key Details

  • Transaction date: 2026-03-09; Form 4 filed 2026-03-10 (timely filing).
  • Type: Grant / award of derivative securities (code A); acquisition price reported $0.00.
  • Number of shares/units: 445,000 (derivative securities representing common stock).
  • Vesting: One-fourth of the total vests on the first vesting date, then an additional one thirty-sixth vests each month thereafter until fully vested (per footnote).
  • Post-transaction beneficial ownership: Not specified in the provided filing.
  • No sale or immediate cashless exercise noted — this appears to be a standard long-term incentive grant.

Context Derivative awards like this are commonly used as long-term incentive compensation for executives. Because the grant was recorded at $0.00, it does not reflect an immediate cash outlay or open-market purchase; its value to the executive depends on future vesting and the company’s stock price. This filing does not indicate any immediate disposition of shares.

Insider Transaction Report

Form 4
Period: 2026-03-09
Brasel Michael Allen
Chief Operating Officer
Transactions
  • Award

    Employee Stock Option (right to buy)

    [F1]
    2026-03-09+445,000530,000 total
    Exercise: $15.00From: 2027-03-09Exp: 2036-03-09Common Stock (445,000 underlying)
Footnotes (1)
  • [F1]Date at which first vesting occurs is indicated. One-fourth of the total number of options to purchase the Company's common stock vests on the first vesting date shown and an additional one-thirty sixth on each month thereafter until fully vested.
Signature
/s/ Michael Allen Brasel|2026-03-10

Documents

1 file
  • 4
    tm268353-3_4seq1.xmlPrimary

    OWNERSHIP DOCUMENT