Schmitz William Mark (CIK 1409378) reported 1 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2025-09-09). Recent activity: Buy NONE (103,928 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2025-09-09 | DEEP FISSION, INC. (NONE) | Chief Financial Officer | Buy | 103,928 | $0 |
Source: SEC Form 4 filings · as of 2025-09-09