Transaction #15711 · Form 4 · 0001104659-25-118369

DEEP FISSION, INC. · Stock award · Employee Stock Option (right to buy)

DEEP FISSION, INC. · Transacted November 7, 2025 · Filed December 4, 2025

Original SEC filing ↗

What does this filing report?

An SEC Form 4 filing for DEEP FISSION, INC. records a stock award involving Employee Stock Option (right to buy) on November 7, 2025. The reported quantity was 85,000. The filing date is December 4, 2025. This is one transaction record; amounts are not allocated among any joint reporting owners.

The acquisition category describes how securities were received. It does not by itself establish a cash purchase of common stock. Read the transaction code definitionsand the original filing before interpreting the amounts.

Transaction details

Company CIK
0001918102
Security type
Derivative
Acquisition type
Stock award · Code A
Quantity acquired
85,000
Reported price
0
Reference value
0
Currency
Currency not specified
Ownership
Direct
Holdings after transaction
85,000
Ownership description
Not reported
SEC acceptance time
Dec 4, 2025, 12:33 PM EST
10b5-1 indication
Not indicated

Reference value is reported quantity × reported price. It is not a confirmed cash payment or an estimate of a derivative's economic value. A missing currency is not assumed to be USD.

Reporting owners

These are the reporting owners named in the filing. Quantities and amounts are not allocated among co-reporters. Roles reflect this filing, not a current profile.

Company listings

FISN · Nasdaq

This transaction is not mapped to a specific company listing.

Derivative terms

Underlying security
Common Stock
Underlying quantity
85,000
Conversion / exercise price
2.73
Exercise date
October 7, 2026
Expiration date
November 7, 2035

Filing footnotes & remarks

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.

Remarks

General Counsel & Secretary (Section 16 Officer). Represents the grant of an employee stock option approved by the Issuer's Compensation Committee pursuant to Rule 16b-3.

Footnotes are reproduced as plain text from the current source filing. For the full context, read the original SEC filing.

This record was updated Eastern Time. This is the stored record update time, not the transaction date. Report a correction.