3i Group PLC 18 April 2008 NOTIFICATION OF MAJOR INTERESTS IN SHARES On 17 April 2008 3i Group plc ("the Issuer") was notified of the following details relating to a major interest in its shares. 1. Identity of the issuer or the underlying issuer of existing shares to which voting rights are attached: 3i Group plc 2. Reason for the notification: An acquisition or disposal of voting rights 3. Full name of person(s) subject to the notification obligation: AXA S.A, 25 Avenue Matignon, 75008 Paris and its group of companies 4. Full name of shareholder(s) (if different from 3): 5. Date of the transaction (and date on which the threshold is crossed or reached if different): 16/04/2008 6. Date on which issuer notified: 17/04/2008 7. Threshold(s) that is/are crossed or reached: 11% 8. Notified details: A: Voting rights attached to shares Class/type Situation previous to the Resulting situation after the triggering transaction of shares triggering transaction if possible Number of Shares Number of Voting Number of Number of voting rights % of voting rights using the Rights shares ISIN CODE Direct Direct Indirect Direct Indirect GB00B1YW4409 41,846,585 41,846,585 7,125,301 7,125,301 37,663,311 1.86 9.84 B: Financial Instruments Resulting situation after the triggering transaction Type of financial Expiration date Exercise/ Number of voting % of voting rights instrument Conversion Period rights that may be / Date acquired if the instrument is exercised/ converted. Total (A+B) Number of voting rights % of voting rights 44,788,612 11.70% 9. Chain of controlled undertakings through which the voting rights and/or the financial instruments are effectively held, if applicable: Name of Company/Fund Number of % of issued Shares share capital AXA Sun Life plc 214,397 0.05602 (fmly Axa Equity & Law Life Assurance Society plc) Sun Life Unit Assurance Ltd A/c X 74,460 0.01945 Sun Life Unit Assurance Ltd A/c X 2,235,499 0.58408 Sun Life Unit Assurance Ltd A/c X 338,460 0.08843 PPP Healthcare Group plc 20,700 0.00541 Sun Life Pensions Management Ltd 50,000 0.01306 Sun Life Pensions Management Ltd A/c 875,500 0.22874 Sun Life Assurance Society Plc 145,164 0.03793 AXA Insurance UK 87,800 0.02294 AXA Financial, Inc* 3,326,993 0.86925 AXA Colonia Konzern 1,771,608 0.46287 AXA France* 311,534 0.08140 AXA Rosenberg* 2,381,824 0.62231 AXA Financial, Inc* 31,635,441 8.26549 Sun Life Pensions Management Ltd 31,428 0.00821 Sun Life Pensions Management Ltd 3,647 0.00095 Sun Life Unit Assurance Ltd 75,000 0.01960 LTAV UK Equity Sun Life Unit Assurance Ltd 61,675 0.01611 FTSE All Share Tracker Sun Life Pensions Management 290,000 0.07577 LTAV UK Equity Sun Life Pensions Management 339,841 0.08879 FTSE All Share Tracker Framlington onshore private clients* 7,519 0.00196 AXA Winterthur 98,753 0.02580 Axa Sun Life With Profits Passive 274,093 0.07161 Axa Sun Life With Profits Passive 137,276 0.03587 Total Direct 7,125,301 1.86165 Total Indirect 37,663,311 9.84041 Total 44,788,612 11.70207 * Indirect holding 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: 13. Additional information: Issuer contact details: Jackie Harper, Group Secretariat Telephone: 020 7975 3530 This information is provided by RNS The company news service from the London Stock Exchange