X0306 4 2018-12-21 0 0001717452 Odonate Therapeutics, Inc. ODT 0001465837 Boxer Capital, LLC 11682 EL CAMINO REAL, SUITE 320 SAN DIEGO CA 92130 1 0 1 0 0001465836 Boxer Asset Management Inc. C/O CAY HOUSE EP TAYLOR DRIVE N7776, LYFORD CAY NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 0001015747 LEWIS JOSEPH C/O CAY HOUSE EP TAYLOR DRIVE N7776, LYFORD CAY NEW PROVIDENCE C5 BAHAMAS 0 0 1 0 Common Stock 2018-12-21 4 P 0 25000 13.4565 A 2878762 D Common Stock 2018-12-21 4 P 0 75000 13.4747 A 2953762 D Common Stock 2018-12-26 4 P 0 25000 12.4726 A 2978762 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"). 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. These securities are owned indirectly by Boxer Management and Joseph C. Lewis, by virtue of their ownership of Boxer Capital. Boxer Capital, LLC, By: /s/ Aaron Davis, Aaron Davis, Chief Executive Officer 2018-12-27 Boxer Asset Management Inc., By: /s/ Jason Callender, Jason Callender, Director 2018-12-27 Joseph C. Lewis, /s/ Joseph C. Lewis, Joseph C. Lewis 2018-12-27