Form 4 Filing for Bicara Therapeutics Inc.

This Form 4 filing details a stock option grant to Jake Simson, a director at Bicara Therapeutics Inc. The option, for 19,475 shares of Common Stock, was granted on June 9, 2026, with an exercise price of $20.56. The shares underlying the option vest on the earlier of June 9, 2027, or the next Annual Meeting of Stockholders, contingent upon Simson's continued service. Notably, Simson holds this option for the benefit of RA Capital Management, L.P. and its associated funds, RA Capital Healthcare Fund, L.P. and RA Capital Nexus Fund III, L.P. He is obligated to transfer any net proceeds from exercising the option to the adviser, which will offset advisory fees. Consequently, Simson disclaims beneficial ownership of the option and the underlying shares.