EPT Disclosure

Citigroup Global Markets UK EqtyLtd
18 May 2006

                                   FORM 38.5



                 DEALINGS BY CONNECTED EXEMPT PRINCIPAL TRADERS

             (Rule 38.5 of the City Code on Takeovers and Mergers)





Amendment



1.         KEY INFORMATION


Name of exempt principal trader                Citigroup Global Markets UK Equity Limited
Company dealt in                               BAA plc
Class of relevant security to which the        Ord/Equity
dealings being disclosed relate (Note 1)

Date of dealing                                17 May 2006






2.            DEALINGS (Note 2)



(a)            Purchases and sales


Total number of securities purchased   Highest price paid (Note 3)           Lowest price paid (Note 3)


15,004                                 GBP 8.3800                            GBP 8.3250






Total number of securities sold        Highest price received (Note 3)       Lowest price received (Note 3)


305,692                                GBP 8.3800                            GBP 8.3250





(b)            Derivatives transactions (other than options)


Product name,         Long/short (Note 4)       Number of securities (Note 5)        Price per unit (Note 3)

e.g. CFD
CFD                   Long                      250,000                              GBP 8.3572







(c)            Options transactions in respect of existing securities

(i)            Writing, selling, purchasing or varying


Product name,         Writing, selling, Number of securities  Exercise   Type, e.g.      Expiry     Option money
                        purchasing,     to which the option              American,
e.g. call option      varying etc.      relates (Note 5)      price      European etc.   date       paid/received per
                                                                                                    unit (Note 3)





(ii)            Exercising


Product name, e.g. call option         Number of securities                  Exercise price per unit (Note 3)








3.            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.











Date of disclosure                                                18 May 2006

Contact name                                                      Nicola Hall

Telephone number                                                  020 7508 9553

Name of offeree/offeror with which connected                      Airport Development and Investment Limited
Nature of connection (Note 6)                                     Financial Advisor






Notes



The Notes on Form 38.5 can be viewed on the Takeover Panel's website at
www.thetakeoverpanel.org.uk




















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