DOSSIER · 13F Holders · Q2 2026

SOUTHWEST AIRLS CO

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

CUSIP 844741958·6 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$70M
visible holders
Holders
6
filers reporting
Concentration
51.47%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

6 institutions reported SOUTHWEST AIRLS CO in Q2 2026. IMC-Chicago, LLC leads at 51.5% 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
$36M701K0.01%Q2 2026
02
GROUP ONE TRADING LLC
CIK 0000932540
$18M341K0.02%Q2 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$11M221K0.01%Q2 2026
04
JPMORGAN CHASE & CO
CIK 0000019617
$4M75K0.00%Q2 2026
05
CMT Capital Markets Trading GmbH
CIK 0001632813
$1M33K0.01%Q1 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025