X0306 4 2021-12-21 0 0001835579 Ikena Oncology, Inc. IKNA 0001030575 FORMELA JEAN FRANCOIS C/O IKENA ONCOLOGY, INC. 645 SUMMER STREET, SUITE 101 BOSTON MA 02210 1 0 0 0 Stock Option (Right to Buy) 14.92 2021-12-21 4 A 0 13419 0.00 A 2031-12-21 Common Stock 13419 13419 D This option shall vest (1) 25% on December 21, 2022, and the remaining shall vest in equal monthly installments over the next 36 months. This option was granted to the Reporting Person, a director of the Issuer. The proceeds of any sale of shares of common stock issued to the Reporting Person upon exercise of this option will be transferred to Atlas Venture Life Science Advisors, LLC and as such, the Reporting Person disclaims beneficial ownership of the securities reported herein for purposes of Section 16 of the Securities Exchange Act of 1934, as amended, except to the extent of his pecuniary interest therein, if any. /s/ Ommer Chohan, as Attorney-in-Fact for Jean Francois Formela 2021-12-23