X0306 4 2018-11-01 0 0001717452 Odonate Therapeutics, Inc. ODT 0001178579 TANG KEVIN C 4747 EXECUTIVE DRIVE SUITE 510 SAN DIEGO CA 92121 1 1 1 0 Chief Executive Officer 0001191935 TANG CAPITAL PARTNERS LP 4747 EXECUTIVE DRIVE SUITE 510 SAN DIEGO CA 92121 0 0 1 0 0001232621 TANG CAPITAL MANAGEMENT LLC 4747 EXECUTIVE DRIVE SUITE 510 SAN DIEGO CA 92121 0 0 1 0 0001495904 Lemkey John G 4747 EXECUTIVE DRIVE SUITE 510 SAN DIEGO CA 92121 0 1 0 0 Chief Financial Officer Common Stock 2018-11-01 4 P 0 10000 14.8727 A 12722338 I By LP The price reported in Column 4 is a weighted-average price. These shares were purchased in multiple transactions at prices ranging from $14.64 to $15.00. 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 range set forth herein. The securities are beneficially owned by Tang Capital Partners, LP ("TCP"). Kevin C. 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 G. Lemkey is the Chief Financial Officer of Odonate Therapeutics, Inc., as well as Chief Operating Officer of TCM. Mr. Tang and Mr. Lemkey both have a pecuniary interest in a portion of the shares beneficially held by TCP. /s/ Kevin C. Tang 2018-11-05 /s/ Kevin C. Tang, Managing Member of Tang Capital Management, LLC, General Partner 2018-11-05 /s/ Kevin C. Tang, Managing Member 2018-11-05 /s/ John G. Lemkey 2018-11-05