Discontinued Disposition. By its acquisition of Registrable Securities, each Holder agrees that, upon receipt of a notice from ​ of the occurrence of any event of the kind described in [Section 3.4(iii) through (vi)], such Holder will forthwith discontinue disposition of such Registrable Securities under a Registration Statement until it is advised in writing (the “Advice”) by ​ that the use of the applicable Prospectus (as it may have been supplemented or amended) may be resumed. ​ will use its best efforts to ensure that the use of the Prospectus may be resumed as promptly as is practicable. ​ agrees and acknowledges that any periods during which the Holder is required to discontinue the disposition of the Registrable Securities hereunder shall be subject to the provisions of [Section 2.4].