Company Analysis

Passage Bio, Inc. (PASG)

Nasdaq: PASG · Biological Products, (No Diagnostic Substances) · Philadelphia, PA · filing with the SEC since 2019
Grade5.1
◀ Past 5.4● Present 4.0▶ Future 6.0
6 est.

Who runs Passage Bio, Inc.

Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filed
Chief executive, as filed
Chou William
PRESIDENT AND CEO. First filing Oct 2022, latest Mar 18, 2026, 1 filing in all.
Officers reporting now
2
of 8 people with a filing in the last fifteen months
Directors reporting now
6
26 people on the record since 2020
Officerssales are open-market, Sep 30, 2025 to Sep 30, 2026
NameTitle as filedFirst filingLatest filingSales, 12 months
Chou WilliamPRESIDENT AND CEOOct 2022Mar 18, 20261 · $100,000
Borthwick KathleenCFOJul 2023Mar 18, 20261 · $0.00
Directorssales are open-market, Sep 30, 2025 to Sep 30, 2026
NameRoleFirst filingLatest filingSales, 12 months
Countouriotis AthenadirectorFeb 2020May 21, 2026none
Gowen MaxinedirectorFeb 2021May 21, 2026none
Kapadia SandipdirectorFeb 2020May 21, 2026none
Kassberg Thomas RicharddirectorOct 2024May 21, 2026none
Porter DerrelldirectorMay 2021May 21, 2026none
Sondhi DolandirectorJul 2023May 21, 2026none
Owners of more than 10% of a classsales are open-market, Sep 30, 2025 to Sep 30, 2026
NameRoleFirst filingLatest filingSales, 12 months
Lynx1 Capital Management LP10% ownerAug 2024Jun 29, 2026none
Nichols Weston10% ownerAug 2024Jun 29, 2026none
Earlier names on the record30, newest filing first
Orbimed Advisors LLC · 10% owner · last filing Jun 2025Orbimed Capital Gp Vii LLC · 10% owner · last filing Jun 2025Islam Saqib · director · last filing May 2025Cale Edgar B. · officer · last filing Mar 2025Forman Mark S · officer · last filing Mar 2024King Simona · officer · last filing Aug 2023Fotopoulos Alexandros · officer · last filing Jun 2023Kamarck Michael E. · director · last filing May 2023Woiwode Thomas · director · last filing May 2023Toernsen Monika Maria · officer · last filing Nov 2022Goldsmith Bruce A · officer · last filing Jun 2022Salinas Eliseo Oreste · officer · last filing Feb 2022Quigley Jill M. · officer · last filing Dec 2021Burkavage Brian · officer · last filing Jun 2021Ratcliffe Liam · director · last filing May 2021Yamada Tadataka · director · last filing May 2021Morris Richard Steven · officer · last filing May 2021Romano Gary · officer · last filing Mar 2021Heron Patrick J · director · last filing Mar 2020Fhmls Ix, L.L.C. · 10% owner · last filing Mar 2020Fhmls Ix, L.P. · 10% owner · last filing Mar 2020Frazier Life Sciences Ix, L.P. · 10% owner · last filing Mar 2020Topper James N · 10% owner · last filing Mar 2020Versant Vantage I Gp-Gp, LLC · 10% owner · last filing Mar 2020Versant Vantage I Gp, L.P. · 10% owner · last filing Mar 2020Versant Vantage I, L.P. · 10% owner · last filing Mar 2020Versant Venture Capital Vi, L.P. · 10% owner · last filing Mar 2020Versant Ventures Vi Gp-Gp, LLC · 10% owner · last filing Mar 2020Versant Ventures Vi Gp, L.P. · 10% owner · last filing Mar 2020Squinto Stephen P · officer · last filing Mar 2020

A person is listed as reporting now after a filing in the last fifteen months. The record shows when someone last filed; it does not say why they stopped. Each name links to the filings on sec.gov.

SI Assistanton PASG · research, not advice