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66 National Grid Gas plc Annual Report and Accounts 2010/11
29. Share options and reward plans continued
Share options - Sharesave scheme and Executive Share Option Plan
Sharesave Executive Plan Total
scheme options options options
Weighted Weighted
average average
price price
£ millions £ millions millions
A
t 31 March 2009 4.86 12.0 4.57 0.1 12.1
Granted 5.20 2.4 - - 2.4
Lapsed - expired 5.41 (0.6) - - (0.6)
Exercised 3.96 (2.4) - - (2.4)
A
t 31 March 2010 5.10 11.4 4.59 0.1 11.5
Impact of rights issue - 1.4 - - 1.4
Granted 4.45 2.7 - - 2.7
Lapsed - expired 4.63 (0.8) - - (0.8)
Exercised 5.11 (2.1) - - (2.1)
At 31 March 2011 4.43 12.6 3.80 0.1 12.7
Exercisable
At 31 March 2011 4.84 0.9 3.80 0.1 1.0
A
t 31 March 2010 5.15 0.5 4.41 0.1 0.6
Weighted average share price at exercise date
Year ended 31 March 2011 5.53 2.1 - - 2.1
Year ended 31 March 2010 5.74 2.4 - - 2.4
The weighted average remaining contractual life of options in the employee Sharesave scheme at 31 March 2011 was 2 years and 1 month.
These options have exercise prices between £3.80 and £5.73 per ordinary share. The aggregate intrinsic value of all options outstanding and
exercisable at 31 March 2011 amounted to £54m and £1m respectively.