UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 6-K

REPORT OF FOREIGN PRIVATE ISSUER

PURSUANT TO RULE 13a-16 OR 15d-16

UNDER THE SECURITIES EXCHANGE ACT OF 1934

THOMSON REUTERS CORPORATION

(Translation of registrant’s name into English)

333 Bay Street, Suite 400

Toronto, Ontario M5H 2R2, Canada

(Address of principal executive office)

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F  ☐             Form 40-F  ☒

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(1):  ☐

Indicate by check mark if the registrant is submitting the Form 6-K in paper as permitted by Regulation S-T Rule 101(b)(7):  ☐

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

Date: November 20, 2018

EXHIBIT INDEX

Exhibit 99.1

Thomson Reuters Receives Court Approval

for Return of Capital Transaction

TORONTO, November 20, 2018 – Thomson Reuters (TSX/NYSE: TRI) announced that the Ontario Superior Court of Justice (Commercial List) issued a final order today approving a plan of arrangement to implement the company’s proposed return of capital transaction. Yesterday, Thomson Reuters received shareholder approval for the return of capital transaction at a special meeting held in Toronto.

The return of capital transaction is one of several ways that the company is returning US$10 billion of proceeds from its recently closed Financial & Risk transaction to its shareholders. The return of capital transaction consists of a distribution of US$4.45 in cash per common share (approximately US$2.5 billion in the aggregate) and a consolidation of the company’s outstanding common shares (or reverse stock split) on a basis that is proportional to the cash distribution.

Timeline/Next Steps

Further details of the proposed return of capital transaction are described in the company’s management proxy circular dated October 16, 2018 and related materials, which are available on www.thomsonreuters.com in the “Investor relations” section. The return of capital documents were previously filed with the Canadian securities regulatory authorities on SEDAR and are available at www.sedar.com. The documents were also furnished to the U.S. Securities and Exchange Commission through EDGAR and are available at www.sec.gov.

Thomson Reuters

Thomson Reuters (TSX/NYSE: TRI) is the world’s leading provider of news and information-based tools to professionals. Our worldwide network of journalists and specialist editors keep customers up to speed on global developments, with a particular focus on legal, regulatory and tax changes. Thomson Reuters shares are listed on the Toronto and New York Stock Exchanges. For more information on Thomson Reuters, visit tr.com and for the latest world news, reuters.com.

Thomson Reuters Receives Court Approval for Return of Capital Transaction

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SPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTS

Certain statements in this news release are forward-looking, including statements relating to the timing of the return of capital transaction. These forward-looking statements are based on certain assumptions and reflect our company’s current expectations. As a result, forward-looking statements are subject to a number of risks and uncertainties that could cause actual results or events to differ materially from current expectations, including other factors discussed in materials that Thomson Reuters from time to time files with, or furnishes to, the Canadian securities regulatory authorities and the U.S. Securities and Exchange Commission. There is no assurance that the return of capital transaction will be completed or that other events described in any forward-looking statement will materialize. Except as may be required by applicable law, Thomson Reuters disclaims any obligation to update or revise any forward-looking statements.

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