TR-1: notification of major interests in shares

1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached:
Thomson Reuters Plc

2. Reason for the notification (please tick the appropriate box or boxes)

An acquisition or disposal of voting rights
Yes

An acquisition or disposal of financial instruments which may result in the acquisition of shares already issued to which voting rights are attached

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation:
Deutsche Bank AG

4. Full name of shareholder(s) (if different from 3.):
Deutsche Bank AG

Abbey Life Assurance Company Limited

Deutsche Bank Trust Company Americas

Deutsche Asset Management Investment GmbH

Deutsche Asset Management (Japan) Limited

Deutsche Investment Management Americas Inc.

DWS Investment S.A., Luxembourg

DWS Investment GmbH

Tilney Investment Management

5. Date of the transaction (and date on which the threshold is crossed or reached if different):
13/08/2008

6. Date on which issuer notified:
14/08/2008

7. Threshold(s) that is/are crossed or reached:
Direct 5%

8. Notified details

A: Voting rights attached to shares

Class/type of shares

if possible using the ISIN CODE
Situation previous to the Triggering transaction
Resulting situation after the triggering transaction

Number of Shares
Number of Voting Rights
Number of shares
Number of voting rights
% of voting rights

Direct
Indirect
Direct
Indirect

GB00B29MWZ99

9,046,053

9,046,053

9,126,560

9,005,203

121,357

5.00%

0.07%

B: Financial Instruments

Resulting situation after the triggering transaction

Type of financial instrument
Expiration date
Exercise/ Conversion Period/ Date
Number of voting rights that may be acquired if the instrument is exercised/ converted.
% of voting rights

Total (A+B)

Number of voting rights
% of voting rights

9,126,560

5.07%

9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable :

Proxy Voting:

10. Name of the proxy holder:


11. Number of voting rights proxy holder will cease to hold:


12. Date on which proxy holder will cease to hold voting rights:

This information is provided by RNS
The company news service from the London Stock Exchange

END