X0306 4 2018-05-16 0 0000891293 CTI BIOPHARMA CORP ctic 0001276750 KIRSKE DAVID 3101 WESTERN AVENUE SUITE 800 SEATTLE WA 98121 0 1 0 0 EVP, Chief Financial Officer Non-Qualified Stock Option (right to buy) 4.14 2018-05-16 4 A 0 83396 0 A 2028-05-16 Common Stock 83396 83396 D The stock option will vest in six equal semi-annual installments over a three-year period commencing on March 9, 2018 subject to continued employment with the Company through the applicable vesting dates, such that the option will be fully vested on March 9, 2021. David H. Kirske 2018-05-17