Exhibit 99.1
JOINT FILING AGREEMENT
The undersigned hereby agree that Amendment No. 5 to the Schedule 13G, dated as of February 14, 2019, with respect to the Common Stock of Karyopharm Therapeutics Inc. is, and any amendments thereto, any Schedule 13D with respect to such Common Stock, and any amendments thereto, signed by each of the undersigned shall be, filed on behalf of each of us pursuant to and in accordance with the provisions of Rule 13d-1(d) under the Securities Exchange Act of 1934.
Dated: February 14, 2020 | |
Chione Ltd., by/s/ Simon Prisk, | |
as attorney-in-fact | |
Marcin Czernik, by/s/ Simon Prisk, | |
as attorney-in-fact | |
Andreas Hadjimichael, by/s/ Simon Prisk, | |
as attorney-in-fact | |
George Hadjimichael, by/s/ Simon Prisk, | |
as attorney-in-fact | |
Anastasios Nikolaou, by/s/ Simon Prisk, | |
as attorney-in-fact | |
Wiaczeslaw Smolokowski, by/s/ Simon Prisk, | |
as attorney-in-fact |