RNS Number : 5809U

Thomson Reuters PLC

15 May 2008

Notification of Transactions of Directors/Persons Discharging Managerial

Responsibility or Connected Persons

NEW YORK, NY - May 15, 2008 - Thomson Reuters (NYSE: TRI; TSX: TRI; LSE: TRIL; NASDAQ: TRIN) today announced that Robert D. Daleo (EVP & Chief Financial Officer) purchased 1,600 Thomson Reuters PLC American Depositary Shares at an average price of US$185.865 per share on May 14, 2008.

Following this transaction, Mr. Daleo beneficially owns 5,105 Thomson Reuters Corporation common shares, 206,382 Thomson Reuters Corporation restricted share units, 68,442 Thomson Reuters Corporation deferred share units, 1,030,330 Thomson Reuters Corporation stock options and 1,600 Thomson Reuters PLC American Depositary Shares.

Under its dual listed company structure, Thomson Reuters has two parent companies - Thomson Reuters Corporation and Thomson Reuters PLC.

Mr. Daleo's holdings do not exceed 1% of the issued share capital of either Thomson Reuters Corporation or Thomson Reuters PLC.

Thomson Reuters was notified of this transaction on May 14, 2008.

This notification relates to a transaction notified in accordance with Disclosure Rule and Transparency Rule 3.1.4R(1)(a).

Contact:

Elizabeth Maclean

Thomson Reuters

elizabeth.maclean@thomsonreuters.com

Tel. no. +44 (0) 20 7542 6706

This information is provided by RNS

The company news service from the London Stock Exchange

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