X0306 4 2022-06-09 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) 4.85 2022-06-09 4 A 0 13419 0.00 A 2032-06-09 Common Stock 13419 13419 D This option shall vest in full upon the earlier of (i) June 9, 2023 or (ii) the date of the next annual meeting, all vesting shall cease if the Reporting Person, a director of the Issuer, resigns from the Board or otherwise ceases to service as a director. The Reporting Person is a member of Atlas Venture Associates X, LLC and is obligated to transfer the economic benefit, if any, received upon the sale of the shares issuable upon exercise of the option to Atlas Venture Life Science Advisors, LLC. 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 2022-06-13