RNS Number:0457U

Thomson Reuters PLC

08 May 2008

Thomson Reuters PLC

Notification of Significant Shareholder

NEW YORK, NY - May 8, 2008 - Thomson Reuters (NYSE: TRI; TSX: TRI; LSE: TRIL:

NASDAQ: TRIN) today announced that its controlling shareholder, The Woodbridge

Company Limited and other companies affiliated with it (Woodbridge), received

1,473,778 common shares of Thomson Reuters Corporation at a price of CAD$36.26

per share on May 1, 2008 pursuant to Thomson Reuters Corporation's dividend

reinvestment plan. Woodbridge also acquired 150 common shares of Thomson Reuters

Corporation at a price of CAD$37.16 on May 6, 2008. Thomson Reuters was notified

of these transactions on May 7, 2008.

Following these transactions, Woodbridge owns 452,082,798 Thomson Reuters

Corporation common shares or 70% of the outstanding common shares of Thomson

Reuters Corporation. Based on the issued share capital of Thomson Reuters

Corporation and Thomson Reuters PLC as of May 7, 2008, Woodbridge has a voting

interest in Thomson Reuters of approximately 54%.

Thomson Reuters is voluntarily making this notification relating to securities

of Thomson Reuters Corporation. Under its dual listed company structure, Thomson

Reuters has two parent companies - Thomson Reuters Corporation and Thomson

Reuters PLC.

Contact:

David W. Binet

Secretary to the Board

Thomson Reuters

david.binet@thomsonreuters.com

+1 416.681.0474

This information is provided by RNS

The company news service from the London Stock Exchange

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