{"url_path":"/sec/pasg/10-q/2026/item-6","section_key":"item-6","section_title":"Item 6 Exhibits.","topic":"sec","document":{"doc_type":"10-Q","doc_date":"2026-05-12","source_url":"https://www.sec.gov/Archives/edgar/data/1787297/0001104659-26-058987-index.html","accession_number":"0001104659-26-058987","cik":"0001787297","ticker":"PASG","issuer_name":"Passage BIO, Inc.","edgar_url":"https://www.sec.gov/Archives/edgar/data/1787297/0001104659-26-058987-index.html","primary_entity_key":"0001787297","primary_entity_name":"Passage BIO, Inc."},"word_count":614,"has_tables":true,"body_markdown":"Item 6. Exhibits.\n\nThe exhibits filed or furnished as part of this Quarterly Report on Form 10-Q are set forth on the Exhibit Index below.\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n**Exhibit********Number**\n\n  ​ ​\n\n**Description**\n\n**  ​ ​ ​**\n\n**Form**\n\n**  ​ ​ ​ ​**\n\n**File No.**\n\n**  ​ ​ ​**\n\n**Exhibit********Filing********Date**\n\n**  ​ ​ ​**\n\n**Filed/Furnished********Herewith**\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n31.1\n\n​\n\n[Certification of Principal Executive Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](pasg-20260331xex31d1.htm)\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n31.2\n\n​\n\n[Certification of Principal Financial Officer Pursuant to Rules 13a-14(a) and 15d-14(a) under the Securities Exchange Act of 1934, as Adopted Pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.](pasg-20260331xex31d2.htm)\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n32.1*\n\n​\n\n[Certification of Principal Executive Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](pasg-20260331xex32d1.htm)\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n32.2*\n\n​\n\n[Certification of Principal Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.](pasg-20260331xex32d2.htm)\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n101.INS\n\n​\n\nInline XBRL Instance Document\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n101.SCH\n\n​\n\nInline XBRL Taxonomy Extension Schema Document\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n101.CAL\n\n​\n\nInline XBRL Taxonomy Extension\n\nCalculation Linkbase Document\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n101.DEF\n\n​\n\nInline XBRL Taxonomy Extension\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\n​\n\nDefinition Linkbase Document\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n101.LAB\n\n​\n\nInline XBRL Taxonomy Extension Label\n\nLinkbase Document\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n101.PRE\n\n​\n\nInline XBRL Taxonomy Extension\n\nPresentation Linkbase Document\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n104\n\n​\n\nCover Page Interactive Data File (formatted\n\nas Inline XBRL and contained in Exhibit 101)\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nX\n\n​\n\nad\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n*\n\n​\n\nThis certification is deemed not filed for purposes of Section 18 of the Exchange Act or otherwise subject to the liability of that section, nor shall it be deemed incorporated by reference into any filing under the Securities Act or the Exchange Act.\n\n​\n\n​\n\n42\n\n[Table of Contents](#TOC)\n\nSIGNATURES\n\nPursuant to the requirements of the Securities Exchange Act of 1934, as amended, the registrant has duly caused this report to be signed on its behalf by the undersigned thereunto duly authorized.\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nPASSAGE BIO, INC.\n\n​\n\n​\n\n​\n\n​\n\nDate: May 12, 2026\n\n​\n\nBy:\n\n/s/ William Chou, M.D.\n\n​\n\n​\n\n​\n\nWilliam Chou, M.D.\n\n​\n\n​\n\n​\n\nPresident and Chief Executive Officer\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\nDate: May 12, 2026\n\n​\n\nBy:\n\n/s/ Kathleen Borthwick\n\n​\n\n​\n\n​\n\nKathleen Borthwick\n\n​\n\n​\n\n​\n\nChief Financial Officer\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n​\n\n43"}