RNS Number : 7228J

Thomson Reuters PLC

08 December 2008

Notification of Transactions of Directors/Persons Discharging Managerial Responsibility or Connected Persons

NEW YORK, NY - December 8, 2008 - Thomson Reuters (NYSE: TRI; TSX: TRI; LSE: TRIL; NASDAQ: TRIN) today announced that Thomas H. Glocer (Chief Executive Officer) exercised 3,369,432 options granted to him under the former Reuters Discretionary Share Option Plan (DSOP) in 2005-2007. Mr. Glocer exercised these options as they were due to expire.

For each option exercised, Mr. Glocer received 0.16 Thomson Reuters PLC ordinary shares and 352.5 pence per share, in accordance with the terms of the Reuters acquisition agreement applicable to all holders of DSOP awards. Mr. Glocer applied all of the cash consideration received towards his exercise price. In addition, Mr. Glocer sold 342,052 of the 539,109 Thomson Reuters PLC ordinary shares issued to him through his transaction solely to pay the remaining amount of the aggregate exercise price for his options, plus applicable taxes and commissions. As such, Mr. Glocer retained the fullest possible economic interest in shares through his transaction. The net amount of Thomson Reuters PLC ordinary shares acquired as a result of the transaction was 197,057. The average price per share sold was £13.08. Mr. Glocer's transaction took place on December 5, 2008.

Following this transaction, Mr. Glocer beneficially owns 650,231 Thomson Reuters PLC ordinary shares, 755,023 Thomson Reuters Corporation restricted share units and 303,210 Thomson Reuters Corporation stock options.

Under its dual listed company structure, Thomson Reuters has two parent companies - Thomson Reuters Corporation and Thomson Reuters PLC. Mr. Glocer's holdings do not exceed 1% of the issued share capital of either Thomson Reuters Corporation or Thomson Reuters PLC. This notification relates to a transaction notified in accordance with Disclosure Rule and Transparency Rule 3.1.4R(1)(a).

Contacts:

Fred Hawrysh Frank Golden

Senior Vice President, Senior Vice President, Investor

Corporate Affairs Relations

1.646 223 5285 1.646 223 5288

fred.hawrysh@thomsonreuters. frank.golden@thomsonreuters.com

com

Victoria Brough

Head of Corporate

Communications, EMEA

+44 (0) 207 542 8763

victoria.brough@

thomsonreuters.com

This information is provided by RNS

The company news service from the London Stock Exchange

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