Common use of Assignment; Binding Effect; Amendment Clause in Contracts

Assignment; Binding Effect; Amendment. This Agreement and the rights of the parties hereunder may not be assigned (except by operation of law or to the transferee of Parent Stock in a private transaction among family members or otherwise for estate planning purposes) and shall be binding upon and shall inure to the benefit of the parties hereto, the successors of the corporate parties hereto, and the respective heirs and legal representatives of Stockholders. This Agreement, upon execution and delivery, constitutes a valid and binding agreement of the parties hereto enforceable in accordance with its terms and may be modified or amended only by a written instrument executed by all parties hereto.