DEEP FISSION, INC.·4

Mar 10, 5:31 PM ET

Schmitz William Mark 4

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

Research Summary

AI-generated summary of this filing

Updated

Deep Fission CFO William Schmitz Receives 223,000-Share Award

What Happened

  • William Schmitz, Chief Financial Officer of Deep Fission, Inc., was granted a derivative award of 223,000 shares on March 9, 2026. The filing shows an acquisition at $0.00 (no cash paid at grant) and lists the instrument as a derivative security (e.g., stock options or RSUs). No immediate sale or open-market purchase occurred.

Key Details

  • Transaction date and price: 2026-03-09; acquired 223,000 derivative shares at $0.00.
  • Shares owned after transaction: Not disclosed in the excerpted filing.
  • Footnote (F1): Vesting schedule — one‑fourth of the total vests on the first vesting date shown, then an additional one‑thirty‑sixth vests each month thereafter until fully vested.
  • Filing timeliness: Reported on 2026-03-10 for a 2026-03-09 transaction (no late filing indicated in the provided info).

Context

  • This was an award of derivative securities (commonly stock options or RSUs) as compensation, which vests over time; it is not an immediate market purchase or sale. Such grants are typically part of executive compensation and do not by themselves signal a buy/sell decision by the insider.

Insider Transaction Report

Form 4
Period: 2026-03-09
Schmitz William Mark
Chief Financial Officer
Transactions
  • Award

    Employee Stock Option (right to buy)

    [F1]
    2026-03-09+223,000223,980 total
    Exercise: $15.00From: 2027-03-09Exp: 2036-03-09Common Stock (223,000 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/ Jon Gordon, as Attorney-in-Fact for William A. Schmitz|2026-03-10

Documents

1 file
  • 4
    tm268353-10_4seq1.xmlPrimary

    OWNERSHIP DOCUMENT