Director/PDMR Shareholding

18 May 2010 12:23

UNITED UTILITIES GROUP PLC

DIRECTORS' AND PDMR INTERESTS IN SHARES

United Utilities Group PLC ("the Company") announces that it received notification on 18 May 2010 that the Trustee, Equiniti Share Plan Trustees Limited, purchased ordinary shares of 5p each on behalf of the following directors and persons discharging managerial responsibility on 17 May 2010, to be held in accordance with the rules of the Company's HMRC approved share incentive plan. The shares were purchased at a price of 523.5 pence per share.

Director/PDMR No. of Shares purchased Martin Bradbury 29 Alison Clarke 28 Charlie Cornish 29 Steve Fraser 28 Philip Green 29 Tom Keevil 29 Gaynor Kenyon 29 Tim Weller 29

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Further information can be obtained from Jane Gilmore, Deputy Company Secretary 44 1 925 237052

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United Utilities Group's ordinary shares trade on the London Stock Exchange and its ADRs, each equal to two ordinary shares, trade over the counter under the Trading Symbol "UUGRY".