Holding(s) in Company

3i Group PLC
29 December 2005

                                  SCHEDULE 10

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES

1. Name of company

3i Group plc


2. Name of shareholders having a major interest

FMR Corp and its direct and indirect subsidiaries, and Fidelity International Limited (FIL) and its direct
and indirect subsidiaries, both being non-beneficial holders, and Mr Edward C Johnson 3d as a principal
shareholder of FMR Corp and FIL.


3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18
In respect of those named in 2 above


4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them

              Shares Held         Management Company                                             Nominee/Registered Name

                   10,635                    FIA(K)L                                              State Street Hong Kong
                  140,423                       FICL                                         State Street Bank and Tr Co
                  109,600                     FIGEST                                                  BNP Paribas, Paris
                  218,821                        FIJ                                          Master Trust Bank of Japan
                   89,016                        FIJ                                            Nomura Trust and Banking
                   57,356                        FIJ                                       Trust & Cust Svcs Bk Ltd,Toko
                  416,916                        FIL                                              JP Morgan, Bournemouth
                  190,411                        FIL                                           Bank of New York Brussels
                  576,101                        FIL                                          Brown Bros Harrimn Ltd Lux
                  689,897                        FIL                                         Chase Manhttn Bk AG Frnkfrt
                   54,163                        FIL                                                      ING Luxembourg
                  138,600                        FIL                                                JPMorgan Bournemouth
                  167,113                        FIL                                          National Astl Bk Melbourne
                  116,500                        FIL                                                   Northern Trust Co
                  236,839                        FIL                                               Northern Trust London
                  294,730                        FIL                                         State Str Bk and Tr Co Lndn
                  261,684                        FIL                                         State Street Bank Australia
                  507,769                     FIM HK                                           Bermuda Trust Far East HK
                1,027,659                       FISL                                              JP Morgan, Bournemouth
                   49,000                        FMR                                                    Mellon Bank N.A.
                    4,200                      FMRCO                                                JP Morgan Chase Bank
                   95,841                      FMRCO                                               Northern Trust London
                1,718,869                      FMRCO                                         State Street Bank and Tr Co
                   30,023                      FMRCO                                                    Mellon Bank N.A.
                  509,487                       FMTC                                                    Bank of New York
                3,197,863                       FMTC                                      Brown Brothers Harriman and Co
                  474,158                       FMTC                                                   CIBC Mellon Trust
                1,248,153                       FMTC                                                 JPMorgan Chase Bank
                1,787,347                       FMTC                                                    Mellon Bank N.A.
                2,206,213                       FMTC                                                   Northern Trust Co
                   63,898                       FMTC                                               Royal Trust - Toronto
                7,291,462                       FMTC                                         State Street Bank and Tr Co
                  674,408                        FPM                                           Bank of New York Brussels
                   48,117                        FPM                                                Bankers Trust London
                    8,723                        FPM                                              Chase Manhattan London
                   70,298                        FPM                                         Chase Manhttn BK AG Frnkfrt
                   45,600                        FPM                                                 Clydesdale Bank plc
                    7,740                        FPM                                                    Dexia Privatbank
                  687,887                        FPM                                                       HSBC Bank plc
                2,353,355                        FPM                                              JP Morgan, Bournemouth
                   38,211                        FPM                                                JP Morgan Chase Bank
                  226,984                        FPM                                                         Mellon Bank
                   21,903                        FPM                                         Midland Securities Services
                1,918,281                        FPM                                               Northern Trust London
                   74,141                        FPM                                                    Societe Generale
                2,602,050                        FPM                                         State Str Bk and Tr Co Lndn
                   52,507                        FPM                                                 State Street Munich

5. Number of shares / amount of stock acquired

not known


6. Percentage of issued class

not known



7. Number of shares / amount of stock disposed

not known


8. Percentage of issued class

not known


9. Class of security

Ordinary Shares of 53 1/8p each


10. Date of transaction

not known


11. Date company informed

29 December 2005


12. Total holding following this notification

32,810,952


13. Total percentage holding of issued class following this notification

5.96%



14. Any additional information

FMR Corp is the parent holding company of Fidelity Management & Research Company (FMRCO), investment
manager for US mutual funds, and Fidelity Management Trust Company (FMTC), a US state chartered bank which
acts as a trustee or investment manager of various pension and trust accounts.

Fidelity International Limited (FIL) is the parent holding company for various direct and indirect
subsidiaries, including Fidelity Investment Services Ltd (FISL) and Fidelity Pension Management (FPM),
investment managers for various non-US investment companies and institutional clients.


15. Name of contact and telephone number for queries

Ceris Stafford - 020 7975 3414


16. Name and signature of authorised company official responsible for making
this notification

Robin Jack-Kee - Manager


Date of notification

29 December 2005






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