144 0001397960 XXXXXXXX LIVE 0001075124 THOMSON REUTERS CORP /CAN/ 001-31349 19 Duncan Street Toronto A6 M5H 3H1 416-687-7500 The Woodbridge Company Limited 10% Stockholder Common Shares BMO Capital Markets Corp.

151 West 42nd Street New York NY 10036

600000 57678000 444962490 03/18/2026 Nasdaq Common Shares 04/17/2008 Various. See Note (2) See Note (2) N 452082798 04/17/2008 See Note (2) Y (1) The 444,962,490 Common Shares of the Issuer outstanding are as of December 31, 2025. (2) April 17, 2008 refers to the date on which The Thomson Corporation completed its acquisition of Reuters Group PLC and renamed the surviving company as Thomson Reuters Corporation. Subsequent to such date, Common Shares have been (i) acquired pursuant to dividend reinvestment and other immaterial transactions; and (ii) disposed of by way of sales on the Toronto Stock Exchange ("TSX") and in connection with the Issuer's Substantial Issuer Bid/Tender Offer in October 2018. The Issuer's announced stock consolidations also had the effect of reducing the number of Common Shares owned by the reporting person. 03/16/2026 By: /s/ Michael Medline, Title: CEO & President