DOSSIER · 13F Holders · Q3 2026

GRAINGER W W INC

4 institutions still hold GRAINGER W W INC as of Q3 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 384802954·4 13F holders·last filed Sep 30, 2026
Market cap
—
13F value held
$71M
visible holders
Holders
4
filers reporting
Concentration
92.41%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q3 2026

4 institutions reported GRAINGER W W INC in Q3 2026. IMC-Chicago, LLC leads at 92.4% 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
$65M53K0.01%Q3 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$4M3K0.00%Q3 2026
03
CMT Capital Markets Trading GmbH
CIK 0001632813
$2M2K0.02%Q1 2026
04
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00—Q2 2025