DOSSIER · 13F Holders · Q2 2026

THOMSON REUTERS CORP

4 institutions still hold THOMSON REUTERS CORP as of Q2 2026. Tracked across SEC 13F-HR filings, with insider and 13D/G activity surfaced alongside.

CUSIP 884903901·4 13F holders·last filed Jun 30, 2026
Market cap
13F value held
$6M
visible holders
Holders
4
filers reporting
Concentration
49.38%
IMC-Chicago, LLC #1
top holder share
AI Holders Summary · Q2 2026

4 institutions reported THOMSON REUTERS CORP in Q2 2026. IMC-Chicago, LLC leads at 49.4% 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
$3M36K0.00%Q2 2026
02
SIMPLEX TRADING, LLC
CIK 0001488542
$2M27K0.00%Q2 2026
03
GROUP ONE TRADING LLC
CIK 0000932540
$645K8K0.00%Q2 2026
04
NATIONAL BANK OF CANADA /FI/
CIK 0000926171
$180K220.00%Q2 2026