Neither Party may assign this Agreement without the prior written consent of the other Party, which consent shall not be unreasonably withheld, conditioned or delayed, except that such consent shall not be required in connection with any assignment to an Affiliate of the assigning Party, or to a Third Party in connection with a sale or transfer of the business to which this Agreement relates, or to any successor Person resulting from any merger or consolidation of such Party with or into such Person, provided that the assignee shall have agreed in writing to assume all of the assignor’s obligations hereunder, and provided ,   further , that the other Party shall be notified promptly after such assignment has been effected. Any such assignment shall not relieve the assigning Party of any liabilities or obligations owed to the other Party hereunder, including in the case of Jazz, the payment of any amounts described in Article 6, and in the case of ImmunoGen, the payment of any amounts described in Article 11. Any purported assignment of this Agreement in violation of this Section 14.8 shall be null and void.