William Mark Schmitz
Chief Financial Officer · DEEP FISSION, INC.
Individual
- 2025
- Mar 10, 2026
- 3
Filings (90d)
Other insiders active in the same stocks
Insiders who have reported open-market trades at the same companies as William Mark Schmitz. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
- Mark N. Tompkins - $3 in FISN purchases and sales on record
- Ian Seth Jacobs - $3 in FISN purchases and sales on record
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Frequently asked questions
Who is William Mark Schmitz?
William Mark Schmitz is a corporate insider, tracked as Chief Financial Officer of DEEP FISSION, INC. (FISN). InsiderAlpha holds 3 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
When did William Mark Schmitz last file a Form 4?
The most recent primary Form 4 on record is dated 10 March 2026, one of 3 filings going back to 2025.
