0001843372-26-000005.txt : 20260807 0001843372-26-000005.hdr.sgml : 20260807 20260807133541 ACCESSION NUMBER: 0001843372-26-000005 CONFORMED SUBMISSION TYPE: D/A PUBLIC DOCUMENT COUNT: 1 ITEM INFORMATION: Rule 506(b) provides a "safer harbor" for a private offering FILED AS OF DATE: 20260807 DATE AS OF CHANGE: 20260807 EFFECTIVENESS DATE: 20260807 FILER: COMPANY DATA: COMPANY CONFORMED NAME: Duo Oncology Inc. CENTRAL INDEX KEY: 0001843372 ORGANIZATION NAME: EIN: 851909864 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 FILING VALUES: FORM TYPE: D/A SEC ACT: 1933 Act SEC FILE NUMBER: 021-548506 FILM NUMBER: 261253140 BUSINESS ADDRESS: STREET 1: 218 OAKLAND AVE CITY: PITTSBURGH STATE: PA ZIP: 15213 BUSINESS PHONE: 412-709-1659 MAIL ADDRESS: STREET 1: 218 OAKLAND AVE CITY: PITTSBURGH STATE: PA ZIP: 15213 D/A 1 primary_doc.xml 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