X0508 4 2025-04-21 0001844505 QT IMAGING HOLDINGS, INC. QTIH 0001116229 GREENE JAMES S C/O UPHEALTH, INC. 14000 S. MILITARY TRAIL #203 DELRAY BEACH FL 33484 1 0 0 0 0 Stock Option (right to buy) 0.665 2025-04-21 4 A 0 212500 0 A 2035-04-21 Common Stock 212500 212500 D The grant will vest in four equal quarterly installments beginning on May 15, 2025, and continuing on August 15, 2025, November 15, 2025 and February 15, 2026, such that the grant will be fully vested on February 15, 2026, subject to continued service with the Issuer through each vesting date. /s/ James S. Greene 2025-04-23