DOSSIER · 13F Holders · Q3 2026

DEFI DEVELOPMENT CORP

4 institutions still hold DEFI DEVELOPMENT CORP as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 47100L901·4 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$3M
visible holders
Holders
4
filers reporting
Concentration
84.73%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q3 2026

4 institutions reported DEFI DEVELOPMENT CORP in Q3 2026. GROUP ONE TRADING LLC leads at 84.7% 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
$3M498K0.00%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$303K79K0.00%Q3 2026
03
IMC-Chicago, LLC
CIK 0001452861· Market maker
$179K33K0.00%Q3 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025