X0609 4 2026-06-09 0 0002023658 Bicara Therapeutics Inc. BCAX 0001608601 Bowden Christopher false BICARA THERAPEUTICS INC. 116 HUNTINGTON AVENUE, SUITE 703 BOSTON MA 02116 1 0 0 0 0 Stock Option (Right to Buy) 20.56 2026-06-09 4 A 0 19475 0 A 2036-06-09 Common Stock 19475 19475 D The shares underlying this stock option vest upon the earlier of (i) June 9, 2027 or (ii) the date of the next Annual Meeting of Stockholders of Bicara Therapeutics Inc., subject to the Reporting Person's continued service on such vesting date. /s/ Ryan Cohlhepp, Attorney-in-Fact 2026-06-10