Rule 8.3- BAE Systems PLC

RNS Number:0446B
GLG Partners LP
05 April 2006


                                                                        FORM 8.3


    DEALINGS BY PERSONS WITH INTERESTS IN SECURITIES REPRESENTING 1% OR MORE
             (Rule 8.3 of the City Code on Takeovers and Mergers)
 
1.     KEY INFORMATION

Name of person dealing  (Note 1)     GLG PARTNERS LP   

Company dealt in                     BAE SYSTEMS PLC

Class of relevant security
to which the dealings 
being disclosed relate (Note 2)      ORDINARY

Date of dealing                      4.4.2006
 

2.     INTERESTS, SHORT POSITIONS AND RIGHTS TO SUBSCRIBE
 
(a)    Interests and short positions (following dealing) in the class of 
       relevant security dealt in (Note 3)
 
                                              Long               Short
                                              Number     (%)     Number    (%)

(1) Relevant securities                          98730   .0030
(2) Derivatives (other than options)          12093779   .3756   12061960  .3746   
(3) Options and agreements to purchase/sell                    
Total                                         12192509   .3786   12061960  .3746  
 
(b)   Interests and short positions in relevant securities of the company,
      other than the class dealt in (Note 3)

Class of relevant security:                    Long              Short     
                                               Number     (%)    Number     (%)

(1) Relevant securities                        24950000   .7748
(2) Derivatives (other than options)                    
(3) Options and agreements to purchase/sell                    
Total                                          24950000   .7748
 
(c)     Rights to subscribe (Note 3)
 
Class of relevant security:     Details

     

3.     DEALINGS (Note 4)
 
(a)     Purchases and sales
 
Purchase/sale      Number of securities     Price per unit (Note 5)

          
 
(b)     Derivatives transactions (other than options)
 
Product name,     Long/short     Number of securities     Price per unit 
e.g. CFD          (Note 6)       (Note 7)                 (Note 5)

CFD               Long           450,000                  4.31388
CFD               Long           400,000                  4.37874
CFD               Long             4,219                  4.36750
CFD               Long           300,000                  4.35870
CFD               Short          236,960                  4.40251
CFD               Short          250,000                  4.39000            

               
(c)     Options transactions in respect of existing securities
(i)     Writing, selling, purchasing or varying


Product   Writing,       Number of    Exercise  Type, e.g.  Expiry  Option money
name,     selling,       securities   price     American,   date    paid/
e.g.      purchasing,    to which               European            received                
call      varying etc.   the option             etc.                per unit  
option                   relates                                    (Note 5) 
                         (Note 7) 

                             
 
 
(ii)     Exercising
 
Product name, e.g.     Number of securities      Exercise price per unit 
call option                                      (Note 5)
          
 
(d)     Other dealings (including new securities)(Note 4)
 
Nature of transaction      Details               Price per unit 
(Note 8)                                         (if applicable) (Note 5)
          

4.     OTHER INFORMATION

Agreements, arrangements or understandings relating to options or derivatives

Full details of any agreement, arrangement or understanding between the person
disclosing and any other person relating to the voting rights of any relevant
securities under any option referred to on this form or relating to the voting
rights or future acquisition or disposal of any relevant securities to which any
derivative referred to on this form is referenced.  If none, this should be
stated.

                                 N/A


Is a Supplemental Form 8 attached? (Note 9)       NO
 
 
Date of disclosure                                5.4.2006

Contact name                                      DAVID HOBBS

Telephone number                                  020-7016-7422

If a connected EFM, name of 
offeree/offeror with which connected              N/A

If a connected EFM, state nature of 
connection (Note 10)                              N/A

Notes

The Notes on Form 8.3 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk 



                      This information is provided by RNS
            The company news service from the London Stock Exchange

END

RETIAMITMMMMBLF