144 0001965735 XXXXXXXX LIVE 0001075124 Thomson Reuters Corporation 001-31349 19 DUNCAN STREET TORONTO A6 M5H 3H1 4163648700 MICHAEL EASTWOOD Officer Common Shares UBS Financial Services Inc

1000 Harbor Blvd 3rd Floor Weehawken NJ 07086

35613 6614758.62 450437777 05/02/2025 Nasdaq Common Shares 05/02/2025 Exercise of Stock Options Thomson Reuters Corporation N 8980 05/02/2025 Cashless Exercise Common Shares 05/02/2025 Exercise of Stock Options Thomson Reuters Corporation N 1552 05/02/2025 Cashless Exercise Common Shares 05/02/2025 Exercise of Stock Options Thomson Reuters Corporation N 5011 05/02/2025 Cashless Exercise Common Shares 05/02/2025 Exercise of Stock Options Thomson Reuters Corporation N 4108 05/02/2025 Cashless Exercise Common Shares 05/02/2025 Exercise of Stock Options Thomson Reuters Corporation N 3762 05/02/2025 Cashless Exercise Common Shares 03/10/2021 Vesting of Restricted Share Units Thomson Reuters Corporation N 2530 05/02/2025 NA Common Shares 03/10/2022 Vesting of Restricted Share Units Thomson Reuters Corporation N 2370 05/02/2025 NA Common Shares 03/10/2025 Vesting of Performance Share Units Thomson Reuters Corporation N 4845 05/02/2025 NA Common Shares 03/10/2025 Vesting of Restricted Share Units Thomson Reuters Corporation N 2455 05/02/2025 NA Y The 450,437,777 Common Shares of Thomson Reuters Corporation outstanding are as of April 11, 2025, as indicated in Exhibit 99.1 to Thomson Reuters Corporation's Form 6-K dated April 16, 2025. 05/02/2025 /s/JOSEPH CASSIDY UBS Financial Services Inc, as attorney-in-fact for MICHAEL EASTWOOD