Muller Elizabeth 4
4 · DEEP FISSION, INC. · Filed Mar 10, 2026
Research Summary
AI-generated summary of this filing
Deep Fission CEO Elizabeth Muller Receives 2.6M Option Award
What Happened
Elizabeth Muller, CEO of Deep Fission, was granted a derivative equity award to acquire 2,600,000 shares on 2026-03-09. The Form 4 reports an acquisition at $0.00 per share (derivative instrument), meaning no cash was paid by the insider in this transaction. This was an award/grant (transaction code A), not a market purchase or sale.
Key Details
- Transaction date: 2026-03-09; Form 4 filed 2026-03-10 (timely filing).
- Instrument/price: Derivative award reported at $0.00 per share for 2,600,000 shares.
- Vesting: Footnote F1 — one-fourth of the total options vest on the first vesting date, then 1/36th each month thereafter until fully vested.
- Shares owned after transaction: not specified in the filing.
- No sale or exercise reported here; this is an equity compensation grant (not a 10b5-1 sale, gift, or tax withholding).
Context
This is a time-vested equity award (options or RSUs) that grants potential future ownership as it vests; it does not represent an immediate market purchase or sale. Such awards are common as executive compensation and align long-term incentives, but they do not by themselves indicate near-term buying or selling in the market.
Insider Transaction Report
- Award
Employee Stock Option (right to buy)
[F1]2026-03-09+2,600,000→ 4,150,300 totalExercise: $15.00From: 2027-03-09Exp: 2036-03-09→ Common Stock (2,600,000 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.