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

REUTERS GROUP PLC

2. Reason for the notification:

	An acquisition or disposal of voting rights
	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:

Credit Suisse Securities (Europe) Limited

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

Credit Suisse Securities (Europe) Limited
Credit Suisse international

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

12 December 2007

6. Date on which issuer notified:

14 December 2007

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

8%

8. Notified details:

A: Voting rights attached to shares

Class/type of shares	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		Percentage of voting rights
			Direct	Direct	Indirect	Direct	Indirect
ORD - GB0002369139	102,040,379	102,040,379	99,076,304	99,076,304	N/A	7.83%	N/A

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	Percentage of voting rights
Option	Dec 21 2007	N/A	135,000	0.0107%

Total (A+B)

Number of voting rights	Percentage of voting rights
99,211,304	7.84%

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