Holding(s) in Company

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

Interserve Plc

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

X

An acquisition or disposal of instruments with similar economic effect to qualifying financial instruments

An event changing the breakdown of voting rights

Other (please specify):

3. Full name of person(s) subject to the notification obligation: iii

Old Mutual Plc

4. Full name of shareholder(s)

(if different from 3.): iv

5. Date of the transaction and date on which the threshold is crossed or reached: v

19.09.14

6. Date on which issuer notified:

22.09.14

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

reached: vi, vii

Crossed 8%

8. Notified details:

A: Voting rights attached to shares viii, ix

Class/type ofshares

if possible usingthe ISIN CODE

Situation previousto the triggeringtransaction

Resulting situation after the triggering transaction

NumberofShares

NumberofVotingRights

Numberof shares

Number of votingrights

% of voting rights x

Direct

Direct xi

Indirect xii

Direct

Indirect

GB0001528156

9,140,222

9,140,222

10,476,216

7.28%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/ConversionPeriod xiv

Number of votingrights that may beacquired if theinstrument isexercised/ converted.

% of votingrights

 CFD

1,132,208

0.79%

C: Financial Instruments with similar economic effect to Qualifying Financial Instruments xv, xvi

Resulting situation after the triggering transaction

Type of financialinstrument

Exerciseprice

Expirationdate xvii

Exercise/Conversionperiod xviii

Number of votingrights instrumentrefers to

% of voting rights xix, xx

 N/A

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

 11,608,424

8.07%

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

N/A

Proxy Voting:

10. Name of the proxy holder:

 N/A

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

 N/A

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

 N/A

13. Additional information:

14. Contact name:

 Trevor Bradbury

15. Contact telephone number:

01189 602328