Holding(s) in Company

BAE SYSTEMS PLC
06 December 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                                                             11,651,120
State Str Bk and Tr Co Lndon                                                       5,535,776
Northern Trust London                                                              4,676,740
HSBC Bank plc                                                                      3,686,930
JP Morgan Bournemouth                                                              2,172,700
Bank of New York Brussels                                                          1,091,817
Mellon Bank                                                                          887,200
Bankers Trust London                                                                 396,700
Chase Manhttn Bk AG Frankfrt                                                         290,700
Midland Securities Services                                                          219,900
JP Morgan Chase Bank                                                                 159,400
Dexia Privatbank                                                                      33,200
State Street Bank and Tr Co                                                        8,741,291
Northern Trust Co                                                                  4,131,776
Mellon Bank N.A.                                                                   3,162,955
Bank of New York                                                                   1,560,600
JP Morgan Chase Bank                                                               1,514,000
CIBC Mellon Trust                                                                    541,796
Brown Brothers Harriman and Co                                                       207,300
Royal Trust - Toronto                                                                113,844
JP Morgan Chase Bank                                                              35,493,709
State Str Bk and Tr Co                                                             2,122,080
Brown Bros Harriman & Co                                                           2,001,100
Northern Trust London                                                                292,400
Northern Trust Co                                                                    201,800
Mellon Bank N.A                                                                      129,700
Mellon Bank N.A                                                                       95,800
JP Morgan Bournemouth                                                             12,295,906
Bermuda Trust Far East HK                                                            976,480
JP Morgan Bournemouth                                                              7,796,937
Brown Bros Harrimn Ltd Lux                                                         4,434,835
Northern Trust London                                                              1,018,030
HSBC Bank plc                                                                        967,900
BNP Paribas, Paris                                                                   895,850
JP Morgan, Bournemouth                                                               683,600
Brown Brothers Harriman and Co                                                       328,400
Northern Trust Co                                                                    265,400
BNP Paribas, Paris                                                                   194,800
State Str Bk and Tr Co Lndn                                                          120,200
ING Luxembourg                                                                       109,395
Morgan Stanley London                                                                 96,804
Master Trust Bank of Japan                                                           420,400
Brown Brothers Harriman and Co                                                       305,360
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                                                        1,104,900
State Street Hong Kong                                                                65,400



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 December 2006



11. Date company informed


6 December 2006



12. Total holding following this notification


127,802,281 shares



13. Total percentage holding of issued class following this notification


3.96%



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 December 2006




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