Holding(s) in Company

London Stock Exchange Plc
16 March 2005

London Stock Exchange plc

16 March 2005

London Stock Exchange plc received the following letter from UBS AG on 15 March
2005.

Pursuant to Section 198 of the Companies Act 1985 we write to inform you that as
at the close of its business on 14 March 2005, UBS AG, acting through its
business group and legal entities detailed below, had a MATERIAL interest in
17,899,317 Ordinary shares of the London Stock Exchange, representing 7.03 per
cent of the issued share capital of the Company (254,571,428).

Please note henceforth, such disclosures are being made on behalf of UBS AG.

UBS business group / legal entity            Breakdown of position held (%)

UBS AG London Branch                         17,060,175 shares*           6.70%

UBS Securities LLC                           392,885 shares               0.15%

UBS Global Asset Management Life Limited     446,257 shares               0.18%

UBS AG - Total                               17,899,317 shares            7.03%


*UBS AG London Branch holds 290,052 of the Relevant Shares by virtue of section
208(5) of the Act.

London Stock Exchange plc, name of contact and telephone number for queries

Lisa Condron, Company Secretary Tel: [phone]

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

Lisa Condron, Company Secretary



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