Exhibit 99.1
UNITED UTILITIES PLC
DIRECTORS’ AND PDMR’S SHAREHOLDINGS
13 FEBRUARY 2007
Performance Share Plan
Under the rules of the performance share plan, the awards are subject to uplift for notional dividends made or paid during the performance period. Accordingly, the dividend shares shown below have been notionally added to and form part of the award in respect of the interim dividend of 14.63 pence per share paid on 12 February 2007. The figures reflect the maximum number of shares over which the option might be exercised. The actual number will depend upon the extent to which the established performance conditions are satisfied over the performance period. The awards are issued for nil consideration and may be exercised at nil cost to the participant.
Awarded 8 September 2006 — Performance period 1 April 2006 to 31 March 2009
| | | | | | | | | |
| | | | | Added at | | | | |
| | | | date of | | | | |
| Name of director/senior | | No. of | | award for | | Added for | | |
| manager discharging | | Ordinary | | dividend | | dividend | | |
| managerial | | shares | | paid 25 Aug | | paid 12 Feb | | |
| responsibilities | | awarded | | 2006 | | 2007 | | Balance |
| | | | | | | | | |
| Philip Green | | 82,249 | | 3,617 | | 1,623 | | 87,489 |
| Tim Weller | | 47,338 | | 2,082 | | 934 | | 50,354 |
| Charlie Cornish | | 40,237 | | 1,769 | | 793 | | 42,799 |
| Tom Drury | | 37,787 | | 1,662 | | 745 | | 40,194 |
| Linda Booth | | 19,944 | | 877 | | 393 | | 21,214 |
| Gaynor Kenyon | | 11,539 | | 507 | | 227 | | 12,273 |
| Tim Rayner | | 19,106 | | 840 | | 377 | | 20,323 |
Philip Green — Retention Award — 16 January 2007
As part of the terms of Philip Green’s recruitment, the company established a matched share incentive scheme for him as sole participant by which the company undertook to match an investment of 100,000 shares made by Mr Green himself upon his appointment provided he remains with the group until 12 February 2011. The award is subject to a dividend enhancement mechanism by which further shares are notionally added to the award on each intervening dividend payment date.
| | | | | |
| | | No of shares | |
| Original award 16 January 2007 | | | 100,000 | |
| Added at award date re dividend paid 25 August 2006 | | | 4,398 | |
| Dividend shares added re dividend paid 12 February 2007 | | | 1,973 | |
| Balance carried forward | | | 106,371 | |
Share Incentive Plan
Notification has been received today that the Trustee, Hill Samuel ESOP Trustees Limited, purchased ordinary shares of £1 each on behalf of the following directors on 12 February 2007, as dividend reinvestment in accordance with the rules of the Company’s Inland Revenue approved share incentive plan (“the SIP”). The shares were purchased at a price of 776.865p per share.
| | | | | |
| | | No. of Shares | |
| Director | | purchased | |
| | | | |
| Philip Green | | | 9 | |
| Tim Rayner | | | 27 | |
| Linda Booth | | | 16 | |
Further information can be obtained from Paul Davies, Assistant Company Secretary 44 1 925 237051.
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United Utilities’ ordinary shares trade on the London Stock Exchange and its ADRs, each equal to two ordinary shares, trade on the New York Stock Exchange under the Trading Symbol “UU”.
