Download and fill in the share change forms depending on the changes you're making. Changing shareholders can be a straightforward process, but accuracy is key.Fill in the CS01 form: This form allows you to confirm and, if needed, update your company's shareholder information. The Company must obtain a "resident" designation from the Exchange Control. Forms to update shares. If any details have changed, or if any shares have been transferred, please fill in the details in the "Amended details" or "Shares transferred" column. Directors are legally required to update shareholder information at Companies House when changes occur. Read our blog to find out more. Every 8 minutes the American Red Cross responds to an emergency. Support the Red Cross.