DOSSIER · 13F Holders · Q3 2026

SL GREEN RLTY CORP

6 institutions still hold SL GREEN RLTY CORP as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 78440X907·6 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$36M
visible holders
Holders
6
filers reporting
Concentration
41.97%
GROUP ONE TRADING LLC #1
top holder share
AI Holders Summary · Q3 2026

6 institutions reported SL GREEN RLTY CORP in Q3 2026. GROUP ONE TRADING LLC leads at 42.0% of the visible book.

Top holders

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

#HolderValueShares% port.Quarter
01
GROUP ONE TRADING LLC
CIK 0000932540
$15M306K0.02%Q3 2026
02
IMC-Chicago, LLC
CIK 0001452861· Market maker
$9M193K0.00%Q3 2026
03
LANDMARK INVESTMENT PARTNERS, L.P.
CIK 0002023551
$7M127K1.76%Q2 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$3M57K0.00%Q3 2026
05
JPMORGAN CHASE & CO
CIK 0000019617
$1M30K0.00%Q3 2026
06
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025