Holding(s) in Company

BAE SYSTEMS PLC
06 October 2006

                   NOTIFICATION OF MAJOR INTERESTS IN SHARES



1. Name of company


BAE SYSTEMS plc



2. Name of shareholder having a major interest


FMR Corp and its direct and indirect subsidiaries, and Fidelity International
Limited and its direct and indirect subsidiaries



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


Shareholder 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


JP Morgan Bournemouth                                25,713,550
Northern Trust London                                6,765,240
State Str Bk and Tr Co Lndon                         6,182,446
HSBC Bank plc                                        3,412,930
JP Morgan Bournemouth                                2,298,300
Bank of New York Brussels                            1,142,817
Mellon Bank                                          947,000
Bankers Trust London                                 518,000
Chase Manhttn Bk AG Frankfrt                         311,800
Midland Securities Services                          240,400
Societe Generale                                     235,100
JP Morgan Chase Bank                                 171,000
Dexia Privatbank                                     35,600
Chase Manhattan London                               32,600
State Street Bank and Tr Co                          12,139,931
Brown Brothers Harriman and Co                       7,796,000
Northern Trust Co                                    4,334,268
Mellon Bank N A                                      3,109,455
JP Morgan Chase Bank                                 2,864,600
Bank of New York                                     1,563,500
CIBC Mellon Trust                                    917,996
Royal Trust - Toronto                                113,844
JP Morgan Chase Bank                                 25,971,009
State Street Bank and Tr Co                          6,374,780
Mellon Bank N.A                                      1,789,900
Northern Trust London                                498,600
Mellon Bank N.A                                      95,800
JP Morgan Bournemouth                                16,701,006
Bermuda Trust Far East HK                            957,480
JP Morgan, Bournemouth                               7,651,937
Brown Bros Harrimn Ltd Lux                           4,967,940
Chase Manhatn Bk AG Frankfrt                         1,404,100
Northern Trust London                                1,041,830
HSBC Bank plc                                        918,100
BNP Paribas, Paris                                   893,150
State Str Bk and Tr Co Lndn                          667,640
JP Morgan, Bournemouth                               618,800
State Street Bank Australia                          540,800
National Astl Bk Melbourne                           347,500
Brown Bros Harriman & Co                             328,400
Bank of New York Brussels                            311,200
Northern Trust Co                                    232,000
BNP Paribas, Paris                                   194,800
Ing Luxembourg                                       109,395
Morgan Stanley London                                96,804
Master Trust Bank of Japan                           703,500
Brown Brothers Harriman and Co                       282,520
Nomura Trust and Banking                             207,000
Trust & Cust Svcs Bk Ltd, Toko                       111,350
Bank of New York Europe Ldn                          3,809,100
CDC Finance                                          531,900
State Street Bank and Tr Co                          1,185,000
State Street Hong Kong                               70,200




5. Number of shares / amount of stock acquired


N/A



6. Percentage of issued class


N/A



7. Number of shares / amount of stock disposed


N/A



8. Percentage of issued class


N/A



9. Class of security


Ordinary shares of 2.5 pence each



10. Date of transaction


Not disclosed.  Figures given as at 5 October 2006



11. Date company informed


6 October 2006



12. Total holding following this notification


160,399,918 shares



13. Total percentage holding of issued class following this notification


4.96%



14. Any additional information


Notification received under s198 CA85



15.  Name and contact details of authorised company official responsible for
making this notification


Ann-Louise Holding, Assistant Company Secretary  (tel: [phone])



16.  Date of notification


6 October 2006




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