X0306 4 2019-02-06 0 0001264587 STEMLINE THERAPEUTICS INC STML 0001573722 Hoberman Kenneth C/O STEMLINE THERAPEUTICS, INC. 750 LEXINGTON AVENUE, ELEVENTH FLOOR NEW YORK NY 10022 0 1 0 0 Chief Operating Officer Common Stock 2019-02-06 4 A 0 135071 0 A 781723 D Common Stock 2019-02-06 4 A 0 13607 0 A 795330 D The 135,071 restricted shares will vest in three installments as follows: 45,024 shares on January 21, 2020; 45,024 shares on April 13, 2021; and 45,023 shares on March 29, 2022. Of the 781,723 shares, 604,061 shares are restricted stock. The 13,607 restricted shares will vest in two installments as follows: 6,804 shares on December 21, 2019 and 6,803 shares on December 21, 2020. Of the 795,330 shares, 617,668 shares are restricted stock. /s/ Kenneth Hoberman 2019-02-08