DOSSIER · 13F Holders · Q2 2026

GENERAL MTRS CO

10 institutions still hold GENERAL MTRS CO as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 37045V900·10 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$165M
visible holders
Holders
10
filers reporting
Concentration
53.91%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

10 institutions reported GENERAL MTRS CO in Q2 2026. IMC-Chicago, LLC leads at 53.9% 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
$89M1.2M0.02%Q2 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$34M445K0.05%Q2 2026
03
Optiver Holding B.V.
CIK 0001859606· Market maker
$15M201K0.00%Q2 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$13M163K0.01%Q2 2026
05
Capital Markets Trading UK LLP
CIK 0001719165
$6M86K0.08%Q1 2026
06
Maven Securities LTD
CIK 0001633046
$3M38K0.06%Q2 2026
07
CMT Capital Markets Trading GmbH
CIK 0001632813
$2M25K0.02%Q1 2026
08
SG Americas Securities, LLC
CIK 0001313360
$1M153K0.00%Q1 2026
09
HRT FINANCIAL LP
CIK 0001475597
$886K11K0.00%Q4 2025
10
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025