DEEP FISSION INC

Historical 13F Holders

Symbol
FISN
CUSIP
243927100
All holders as of
Q2 2026
Type
Equity
Class
COM
Reported Value, Excluding Options
Total Shares Held, Excluding Options
Total Filers

13D/G Filers

Each filer's latest filing for 243927100 since 12/18/2024, largest first.

Filer % of Class Filed
Muller Elizabeth 13D 20.6% 9/23/2025
Event 9/5/2025
Muller Richard 13D 10.6% 9/23/2025
Event 9/5/2025
Mark N.Tompkins 13G/A 5.6% 5/15/2026
Event 3/31/2026
EE Holdings Ltd 13G
5.5% 11/3/2025
Event 9/30/2025

13F Holders by Quarter

Period Filers Shares, Excl. Options Value, Excl. Options
2026 Q3 14 1.05 M $5.41M
2026 Q2 22 2.29 M $25.2M