Shares held by a broker to can be transferred to Direct Registration electronically by contacting a stockbroker and instructing the broker to transfer all or some of your shares through the Direct Registration System.
The assignor must agree to assign their rights and duties under the contract to the assignee. The assignee must agree to accept, or "assume," those contractual rights and duties. The other party to the initial contract must consent to the transfer of rights and obligations to the assignee.
The biggest difference is that an SPA is the sale of all shares, and an APA is the sale of selected assets. Therefore, they are both different transactions and have different procedures. 2. With a SPA, all shareholders in the company must be consulted and agree to sell their shares in the company.