DOSSIER · 13F Holders · Q2 2026

CIPHER MINING INC

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

CUSIP 17253J956·5 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$136M
visible holders
Holders
5
filers reporting
Concentration
44.86%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

5 institutions reported CIPHER MINING INC in Q2 2026. IMC-Chicago, LLC leads at 44.9% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
IMC-Chicago, LLC
CIK 0001452861· Market maker
$61M2.5M0.01%Q2 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$39M1.6M0.06%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$36M1.5M0.02%Q2 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$20K8000.00%Q2 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025