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☐ ☑ UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington , D.C. 20549 FORM 40 - F REGISTRATION STATEMENT PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 OR ANNUAL REPORT PURSUANT TO SECTION 13 ( a ) OR 15 ( d ) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31 , 2020 Commission File Number : 1-31349 THOMSON REUTERS CORPORATION ( Exact name of Registrant as specified in its charter ) N / A ( Translation of Registrant's name into English ( if applicable ) ) Province of Ontario , Canada ( Province or other jurisdiction of incorporation or organization ) 2741 ( Primary Standard Industrial Classification Code Number ( if applicable ) ) 98-0176673 ( I.R.S. Employer Identification Number ( if applicable ) ) 333 Bay Street , Suite 300 Toronto , Ontario M5H 2R2 , Canada Telephone : ( 647 ) 480-7000 ( Address and telephone number of Registrant's principal executive offices ) Thomson Reuters Holdings Inc. Attn : Legal Department 3 Times Square New York , New York 10036 Telephone : ( 646 ) 540-3000 ( Name , address ( including zip code ) and telephone number ( including area code ) of agent for service in the United States ) Securities registered or to be registered pursuant to Section 12 ( b ) of the Act : Title of Each Class Common shares Trading Symbol TRI Name of Each Exchange on Which Registered New York Stock Exchange Securities registered or to be registered pursuant to Section 12 ( g ) of the Act : None Securities for which there is a reporting obligation pursuant to Section 15 ( d ) of the Act : Debt Securities of Thomson Reuters Corporation and Guarantees of Debt Securities of TR Finance LLC For annual reports , indicate by check mark the information filed with this Form : × Annual information form > Audited annual financial statements