A corporation is owned by its shareholders. An ownership interest in a corporation is represented by a share or stock certificate. A certificate of stock or share certificate evidences the shareholder's ownership of stock. The ownership of shares may be transferred by delivery of the certificate of stock endorsed by its owner in blank or to a specified person. Ownership may also be transferred by the delivery of the certificate along with a separate assignment. This form is a sample of the transfer of ownership of stock by a separate instrument.