X0206 3 2025-09-02 0 0001844505 QT IMAGING HOLDINGS, INC. QTIH 0001685730 Jennings Jay Walter C/O QT IMAGING HOLDINGS, INC. 3 HAMILTON LANDING SUITE 160 NOVATO CA 94949 0 1 0 0 Chief Financial Officer Stock Option (right to buy) 1.9 2035-09-02 Common Stock 325000 D One-third of the grant will vest on August 15, 2026, and the remaining two-thirds will vest in eight equal quarterly installments on each subsequent November 15, February 15, May 15, and August 15, such that the grant will be fully vested on August 15, 2028, subject to your continued service with the Company through each vesting date. /s/ Jay Walter Jennings 2025-09-02