DOSSIER · 13F Holders · Q2 2026

FERMI INC

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

CUSIP 314911958·3 13F holders·last filed Jun 30, 2026
Market cap
—
13F value held
$25M
visible holders
Holders
3
filers reporting
Concentration
45.88%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q2 2026

3 institutions reported FERMI INC in Q2 2026. GROUP ONE TRADING LLC leads at 45.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
GROUP ONE TRADING LLC
CIK 0000932540
$12M1.3M0.02%Q2 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$8M915K0.00%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$5M573K0.00%Q2 2026