Muller Richard 4

What Happened
Richard Muller, Chief Technology Officer of Deep Fission, was granted 223,000 derivative shares (reported as an award/acquisition, transaction code A) on 2026-03-09 at a reported price of $0.00. The Form 4 was filed on 2026-03-10. Because this is a grant (not a cash purchase or sale), no immediate cash changed hands; the award is typically compensation or incentive pay rather than a market purchase.

Key Details

• Transaction date: 2026-03-09; filing date: 2026-03-10 (Form 4 appears timely).
• Security: 223,000 derivative shares reported at $0.00 per share (award/grant).
• Shares owned after transaction: not disclosed on the Form 4.
• Footnote: Vesting schedule — one-fourth of the total vests on the first vesting date, with an additional one‑thirty‑six of the total vesting each month thereafter until fully vested (see F1).
• Transaction code: A (award/grant of derivative securities).

Context
This filing documents a compensation-related award, which is common for executives and is different from an open-market purchase (a more direct signal of personal investment). The award will become exercisable/vest over the stated schedule, meaning the shares/options are not all immediately tradable. Investors should treat grants as part of pay/retention programs and focus on purchases or sales for clearer signals of insider sentiment.