DOSSIER · 13F Holders · Q3 2026

ROCKET COS INC

9 institutions still hold ROCKET COS INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 77311W901·9 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$109M
visible holders
Holders
9
filers reporting
Concentration
37.29%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

9 institutions reported ROCKET COS INC in Q3 2026. IMC-Chicago, LLC leads at 37.3% 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
$41M3.5M0.01%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$31M2.7M0.02%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$18M1.6M0.03%Q3 2026
04
HRT FINANCIAL LP
CIK 0001475597
$17M1.4M0.03%Q3 2026
05
LANDMARK INVESTMENT PARTNERS, L.P.
CIK 0002023551
$2M177K0.61%Q2 2026
06
JPMORGAN CHASE & CO
CIK 0000019617
$140K12K0.00%Q3 2026
07
Cane Capital Partners, LLC
CIK 0002086121
$89K27K0.03%Q3 2026
08
Capricorn Fund Managers Ltd
CIK 0001901361
$70K10K0.01%Q3 2026
09
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025