DOSSIER · 13F Holders · Q2 2026

WATSCO INC

3 institutions still hold WATSCO INC as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 942622950·3 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$4M
visible holders
Holders
3
filers reporting
Concentration
97.78%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

3 institutions reported WATSCO INC in Q2 2026. IMC-Chicago, LLC leads at 97.8% 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
$4M9K0.00%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$83K2000.00%Q2 2026
03
CONCOURSE FINANCIAL GROUP SECURITIES, INC.
CIK 0000752798
$00Q2 2025