Holding(s) in Company

TR-1: NOTIFICATION OF MAJOR INTEREST IN SHARES

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

IP Group 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

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 thenotification obligation: iii

Prudential plc group of companies

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

See attached schedule

5. Date of the transaction and date onwhich the threshold is crossed orreached: v

25 October 2010

6. Date on which issuer notified:

26 October 2010

7. Threshold(s) that is/are crossed orreached: vi, vii

See item 13

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

GB00B128J450

12,874,520

12,874,520

12,831,500

12,831,500

5.01%

B: Qualifying Financial Instruments

Resulting situation after the triggering transaction

Type of financialinstrument

Expirationdate xiii

Exercise/Conversion Period xiv

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

% of votingrights

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

Resulting situation after the triggering transaction

Type of financialinstrument

Exercise price

Expiration date xvii

Exercise/Conversion period xviii

Number of voting rights instrument refers to

% of voting rights xix, xx

Nominal

Delta

Total (A+B+C)

Number of voting rights

Percentage of voting rights

12,831,500

5.01%

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

Prudential plc (parent Company)

M&G Group Limited (wholly owned subsidiary of Prudential plc)

M&G Limited (wholly owned subsidiary of M&G Group Limited)

Proxy Voting:

10. Name of the proxy holder:

N/A

11. Number of voting rights proxy holder will ceaseto hold:

N/A

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

N/A

13. Additional information:

M&G Investment Management Limited (wholly owned subsidiary of M&G Limited) no longer has a notifiable holding

14. Contact name:

Ryan Dowling / Mark Thomas

M&G Investment Management Limited

15. Contact telephone number:

020 7548 2979 / 020 7548 3266

Registered Holder

Holding

Voting rights

% of votingrights

Prudential plc

12,831,500

5.01

PRUCLT HSBC GIS NOM(UK) PPL AC

NORTRUST NOMS LTD

NORTRUST NOMS LTD A/C PUQ01

NORTRUST NOMS LTD A/C PUC01

NORTRUST NOMINEE LTD A/C MKM01

NORTRUST NOMINEE LTD A/C MHF01

81,952

1,896,823

5,000,000

298,275

5,500,000

54,450

81,952

1,896,823

5,000,000

298,275

5,500,000

54,450

M&G Group Limited

12,831,500

5.01

PRUCLT HSBC GIS NOM(UK) PPL AC

NORTRUST NOMS LTD

NORTRUST NOMS LTD A/C PUQ01

NORTRUST NOMS LTD A/C PUC01

NORTRUST NOMINEE LTD A/C MKM01

NORTRUST NOMINEE LTD A/C MHF01

81,952

1,896,823

5,000,000

298,275

5,500,000

54,450

81,952

1,896,823

5,000,000

298,275

5,500,000

54,450

M&G Limited

12,831,500

5.01

PRUCLT HSBC GIS NOM(UK) PPL AC

NORTRUST NOMS LTD

NORTRUST NOMS LTD A/C PUQ01

NORTRUST NOMS LTD A/C PUC01

NORTRUST NOMINEE LTD A/C MKM01

NORTRUST NOMINEE LTD A/C MHF01

81,952

1,896,823

5,000,000

298,275

5,500,000

54,450

81,952

1,896,823

5,000,000

298,275

5,500,000

54,450