DOSSIER · 13F Holders · Q3 2026

PLAINS GP HLDGS L P

6 institutions still hold PLAINS GP HLDGS L P as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 72651A957·6 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$25M
visible holders
Holders
6
filers reporting
Concentration
33.63%
HRT FINANCIAL LP #1
top holder share
AI Holders Summary · Q3 2026

6 institutions reported PLAINS GP HLDGS L P in Q3 2026. HRT FINANCIAL LP leads at 33.6% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
HRT FINANCIAL LP
CIK 0001475597
$8M323K0.01%Q3 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$8M312K0.00%Q3 2026
03
SIMPLEX TRADING, LLC
CIK 0001488542
$5M202K0.00%Q3 2026
04
GROUP ONE TRADING LLC
CIK 0000932540
$3M123K0.00%Q3 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$5K2000.00%Q3 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025