X0306 4 2020-09-28 0 0001717452 Odonate Therapeutics, Inc. ODT 0001178579 TANG KEVIN C 4747 EXECUTIVE DRIVE SUITE 210 SAN DIEGO CA 92121 1 1 1 0 Chief Executive Officer 0001191935 TANG CAPITAL PARTNERS LP 4747 EXECUTIVE DRIVE SUITE 210 SAN DIEGO CA 92121 0 0 1 0 0001232621 TANG CAPITAL MANAGEMENT LLC 4747 EXECUTIVE DRIVE SUITE 210 SAN DIEGO CA 92121 0 0 1 0 0001495904 Lemkey John G 4747 EXECUTIVE DRIVE SUITE 210 SAN DIEGO CA 92121 0 1 0 0 Chief Operating Officer 0001759910 Hearne Michael S 4747 EXECUTIVE DRIVE SUITE 210 SAN DIEGO CA 92121 0 1 0 0 Chief Financial Officer Common Stock 2020-09-28 4 P 0 100000 13.0571 A 15227900 I By LP Common Stock 2020-09-29 4 P 0 10882 13.8484 A 15238782 I By LP The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $12.71 to $13.19. The Reporting Persons undertake to provide the Issuer, any security holder of the Issuer or the SEC Staff, upon request, full information regarding the number of shares purchased at each price within the ranges set forth in footnotes 1 and 3 herein. The securities are beneficially owned by Tang Capital Partners, LP ("TCP"). Kevin Tang is the sole manager of Tang Capital Management, LLC ("TCM"), which is the general partner of TCP. The shares reported as beneficially owned by TCP include a total of 154,285 shares of common stock that are held of record by Odonate Holdings, LLC ("Holdings"). Holdings has granted a proxy to TCP giving TCP the sole authority to vote such shares. John Lemkey is the Chief Operating Officer of Odonate Therapeutics, Inc., as well as Chief Operating Officer of TCM. Michael Hearne is the Chief Financial Officer of Odonate Therapeutics, Inc., as well as Chief Financial Officer of TCM. Mr. Tang, Mr. Lemkey and Mr. Hearne each have a pecuniary interest in a portion of the shares beneficially held by TCP. The prices reported in Column 4 are weighted-average prices. These shares were purchased in multiple transactions at prices ranging from $13.66 to $13.90. /s/ Kevin Tang 2020-09-30 /s/ Kevin Tang, Managing Member of Tang Capital Management, LLC, General Partner 2020-09-30 /s/ Kevin Tang, Managing Member 2020-09-30 /s/ John Lemkey 2020-09-30 /s/ Michael Hearne 2020-09-30