A Stock Transfer Agreement is a legally binding document that sets out the terms of an agreement between two or more parties for the transfer of stocks or other securities. It outlines who will own the stocks, and how much they will pay for them. The agreement also defines any restrictions on the use of the stocks, such as limits on when they can be sold or mortgaged. In addition, it details all the responsibilities of the buyers and sellers, including the payment process and what happens if either party violates the terms of the agreement. In short, a Stock Transfer Agreement is designed to protect the interests of both parties involved in a stock transaction.