DOSSIER · 13F Holders · Q3 2026

EXTRA SPACE STORAGE INC

5 institutions still hold EXTRA SPACE STORAGE INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 30225T902·5 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$10M
visible holders
Holders
5
filers reporting
Concentration
68.10%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

5 institutions reported EXTRA SPACE STORAGE INC in Q3 2026. IMC-Chicago, LLC leads at 68.1% 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
$7M54K0.00%Q3 2026
02
HRT FINANCIAL LP
CIK 0001475597
$3M22K0.00%Q3 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$368K3K0.00%Q3 2026
04
SIMPLEX TRADING, LLC
CIK 0001488542
$132K1K0.00%Q3 2026
05
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025