X0306 4 2019-06-26 0 0001717452 Odonate Therapeutics, Inc. ODT 0001465837 Boxer Capital, LLC 11682 EL CAMINO REAL, SUITE 320 SAN DIEGO CA 92130 0 0 1 0 Common Stock 2019-06-26 4 P 0 384615 26.00 A 3363377 D These securities are owned directly by Boxer Capital, LLC ("Boxer Capital"), which may be deemed to be a member of a "group" for purposes of Section 13(d) of the Securities Exchange Act of 1934, as amended, consisting of (i) Boxer Capital, (ii) Boxer Asset Management Inc. ("Boxer Management"), (iii) Aaron I. Davis, and (iv) Joseph C. Lewis (collectively, the "Boxer Group"), and indirectly by Boxer Management, Joseph C. Lewis and Aaron I. Davis, by virtue of their ownership of Boxer Capital. Each member of the Boxer Group other than Boxer Capital disclaims beneficial ownership of these securities to the extent it or he does not have a pecuniary interest therein. Boxer Capital, LLC, /s/ Aaron Davis, Aaron Davis, Chief Executive Officer 2019-06-28