Press Release Details

RNS Number:7962S

Thomson Reuters PLC

21 April 2008

TR-1: notification of major interests in shares

1. Identity of the issuer or the underlying THOMSON REUTERS PLC

issuer of existing shares to which voting rights

are attached:

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

An acquisition or disposal of voting rights x

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): New Exemption DTR 5.1.3 (4) & DTR 5.1.5 (1)

3. Full name of person(s) subject to the ValueAct Capital Management, LLC

notification obligation:

ValueAct Capital Management, L.P.

ValueAct Holdings GP, LLC

ValueAct Holdings L.P.

4. Full name of shareholder(s) ValueAct Capital Master Fund,

(if different from 3.): L.P.

ValueAct Capital Master Fund

III, L.P.

5. Date of the transaction (and date on which the 17 April 2008

threshold is crossed or reached if different):

6. Date on which issuer notified: 18 April 2008

7. Threshold(s) that is/are

crossed or reached: 3%

-

8. Notified details:

-

A: Voting rights attached to shares

Class/ Situation previous to the Resulting situation after the triggering

type of Triggering transaction transaction

shares

if

possible Number Number of Voting Number of Number of voting % of voting

using of Rights viii shares rights ix rights

the ISIN Shares Direct Indirect xi Direct Indir.

CODE x

(i)

Ordinary Below 3% Below 3% 7,415,224 7,415,224 3.8%

shares

B: Financial Instruments

Resulting situation after the triggering transaction xii

Type of Expiration Exercise/ Number of voting rights that may % of

financial date xiii Conversion be acquired if the instrument is voting

instrument Period/ Date exercised/ converted. rights

xiv

Total (A+B)

Number of voting rights % of voting rights

7,415,224 3.8%

9. Chain of controlled undertakings through which the voting rights and/or the

financial instruments are effectively held, if applicable xv:

The ordinary shares are held by ValueAct Capital Master Fund, L.P. (6,110,254

ordinary shares, 3.2%) and ValueAct Capital Master Fund III, L.P.

(1,304,970ordinary shares, 0.6%). VA Partners I, LLC is the general partner of

ValueAct Capital Master Fund, L.P. VA Partners III, LLC is the general partner

of ValueAct Capital Master Fund III, L.P. ValueAct Capital Management, L.P. is

the manager of ValueAct Capital Master Fund, L.P. and ValueAct Capital Master

Fund III, L.P. ValueAct Capital Management, LLC is the general partner of

ValueAct Capital Management, L.P. ValueAct Holdings, L.P. is the sole owner of

the limited partnership interests of ValueAct Capital Management, L.P. and the

membership interests of ValueAct Capital Management, LLC, and is the majority

owner of the membership interests of VA Partners I, LLC and VA Partners III,

LLC. ValueAct Holdings GP, LLC is the General Partner of ValueAct Holdings, L.P.

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

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