Link Asset Services manages Sigma’s shareholder register, and can advise you accordingly.

Your share certificate should be kept in a safe place. It is evidence of your share ownership and you will need it if you want to sell all or some of your shares in the future. We recommend that you keep a separate record of the certificate number and the number of shares your certificate covers in case of loss or damage. Share certificates are posted to shareholders at their own risk.

If you have several share certificates for Sigma shares, you can ask for your certificates to be consolidated into one, by sending them to Sigma’s Registrar, Link Asset Services, together with a covering letter. There is no charge to private shareholders for this service.

When you first buy shares you are given a unique reference number. This number is shown on share certificates and on dividend counterfoils and documents, and should be quoted in all correspondence. We recommend that you keep a separate record of your reference number.

If you buy shares in the Company at different times, the name and address you supply to the Registrar may differ, even slightly, from the existing details held, in which case another account may be created. If this happens and you want the accounts combined you should contact the Registrar, otherwise you may receive more than one copy of shareholder documents.

In the event that you lose your share certificate, please contact Sigma’s Registrar, Link Asset Services. Link Asset Services will carry out the appropriate checks and issue a replacement.

Please write to Link Asset Services giving:

  • your old name;
  • your new name; and
  • a copy of any legal documentation, such as a marriage certificate or deed poll.

Further information can be obtained from Link Asset Services

To notify a change of address, please write to our Registrar, Link Asset Services. You will need to quote both your old and new address.

Please write to Link Asset Services. You will need to enclose a completed dividend mandate form.

Details of the procedures involved can be obtained from Link Asset Services on its website.

Sigma’s shares are listed on the London Stock Exchange’s AIM market.