DOSSIER · 13F Holders · Q2 2026
FISN

DEEP FISSION INC

3 institutions still hold DEEP FISSION INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 243927100·3 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$652K
visible holders
Holders
3
filers reporting
Concentration
44.70%
Essential Investment Partners LLC #1
top holder share
AI Holders Summary · Q2 2026

3 institutions reported FISN in Q2 2026. Essential Investment Partners LLC leads at 44.7% of the visible book.

Top holders

Sorted by position value. Source: SEC EDGAR 13F-HR filings.

#HolderValueShares% port.Quarter
01
Essential Investment Partners LLC
CIK 0002145170
$291K26K0.23%Q2 2026
02
CHAPIN DAVIS, INC.
CIK 0000872098
$210K19K0.04%Q2 2026
03
TRAPHAGEN INVESTMENT ADVISORS LLC
CIK 0002023380
$151K14K0.01%Q2 2026