Holding(s) in Company

IP Group PLC
29 April 2008



TR-1(i): NOTIFICATION OF MAJOR INTERESTS IN SHARES


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

IP Group Plc


2. Reason for the notification (please state Yes/No): ( )


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: ( No )


An event changing the breakdown of voting rights: ( No )


Other (please specify) :


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

Lehman Brothers International (Europe)


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

N/A


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

25 April 2008


6. Date on which issuer notified:

28 April 2008


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

9%


8. Notified details:


A: Voting rights attached to shares

Class/type of shares if possible        Situation previous to the
using the ISIN CODE                    Triggering transaction (vi)
                                   Number of    Number of voting
                                   shares       Rights (viii)

GB00B128J450                       24,387,721   24,387,721



Resulting situation after the triggering transaction (vii)

Class/type of shares Number of shares  Number of voting rights    % of voting rights
if possible using                      (ix)
the ISIN CODE
                     Direct            Direct (x) Indirect (xi)   Direct    Indirect

GB00B128J450         38,392,568        38,392,568 N/A             15.33%    N/A


B: Financial Instruments

Resulting situation after the triggering transaction (xii)

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

                                     N/A



Total (A+B)
Number of voting       % of voting
rights                 rights

38,392,568             15.33%


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

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:

N/A


14. Contact name:

Greg Smith


15. Contact telephone number:

020 7444 0070




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