During the current period the Company has not changed its share capital but during the prior period it increased by 53,410 shares following the issue of shares in relation to the exercise of options under the Company's Sharesave Scheme. There has been no significant impact on share premium as a result of the transaction, which has remained at £151.0m (2016: £151.0m).

In total the Company received proceeds of £1.4m (2016: £2.7m) from the exercise of share options.

Potential Issue of Ordinary Shares

The Company has three employee share option schemes, which were set up following the Company's flotation. Further information regarding these schemes can be found in note 23 of the Group's financial statements.

Investment in Own Shares

At 31 March 2017 the Company held in Trust 2,097,863 (2016: 2,984,289) of its own shares with a nominal value of £20,979 (2016: £29,843). The Trust has waived any entitlement to the receipt of dividends in respect of its holding of the Company's ordinary shares. The market value of these shares at 31 March 2017 was £7.4m (2016: £11.7m). In the current period nil (2016: nil) were repurchased and transferred into the Trust, with 886,426 (2016: 1,761,344) reissued on exercise of share options.