In closely held corporations, transfer restrictions on common stock are essential to controlling ownership and preventing unwanted third parties from acquiring shares of the company. Unlike publicly traded companies, where shares can be freely bought and sold on secondary markets, shareholders in a closely held private corporation often have stringent negotiated contractual limitations on how and to whom they can transfer their shares. These restrictions protect existing shareholders, maintain business continuity, and ensure ownership remains aligned with the company’s (and/or founder’s) strategic interests.