X0708 D/A LIVE 0001843372 Duo Oncology Inc. 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 412-709-1659 DELAWARE None None Corporation true SAM ROTHSTEIN 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Executive Officer Director Promoter JING-ZHOU HOU 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Executive Officer Director Promoter STEPHEN THORNE 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Executive Officer Promoter SONG LI 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Director Promoter STANLEY MARKS 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Director LUSONG LUO 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Director JOE GATTO 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Director VICTORIA MANAX 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Director KATHERINE EICHINGER 218 OAKLAND AVE PITTSBURGH PA PENNSYLVANIA 15213 Executive Officer Pharmaceuticals Decline to Disclose 06b true 0001843372-26-000004 2025-06-02 true true true true false 25000 3500000 1625000 1875000 false 13 0 0 200000 true false Duo Oncology Inc. /s/ Sam Rothstein Sam Rothstein President and CEO 2026-08-07