Protagonist Therapeutics, Inc. (PTGX)
Nasdaq: PTGX · Pharmaceutical Preparations · Newark, CA · filing with the SEC since 2006
Grade5.7
◀ Past 4.3● Present 7.6▶ Future 4.9
Who runs Protagonist Therapeutics, Inc.
Officers and directors as they report to the SEC on Forms 3, 4 and 5, named as filedChief executive, as filed
Patel Dinesh V Ph D
President and CEO. First filing Aug 2016, latest Sep 10, 2026, 23 filings in all.
Officers reporting now
3
of 8 people with a filing in the last fifteen months
Directors reporting now
5
23 people on the record since 2016
Officerssales are open-market, Oct 2, 2025 to Oct 2, 2026
| Name | Title as filed | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Ali Asif | Chief Financial Officer | Apr 2022 | Oct 2, 2026 | 7 · $15.6M |
| Patel Dinesh V Ph D | President and CEO | Aug 2016 | Sep 10, 2026 | 14 · $60.6M |
| Molina Arturo Md | Chief Medical Officer | Nov 2022 | Mar 27, 2026 | 6 · $4.5M |
Directorssales are open-market, Oct 2, 2025 to Oct 2, 2026
| Name | Role | First filing | Latest filing | Sales, 12 months |
|---|---|---|---|---|
| Waddill William D. | director | Aug 2016 | Jun 25, 2026 | 6 · $5.6M |
| Giraudo Bryan | director | May 2017 | May 11, 2026 | 4 · $5.9M |
| Selick Harold E | director | Aug 2016 | Mar 27, 2026 | 1 · $2.5M |
| Williams Lewis T | director | Jun 2017 | Feb 18, 2026 | 1 · $1.5M |
| O'Dowd Sarah A | director | Aug 2020 | Jan 6, 2026 | none |
Earlier names on the record26, newest filing first
Gupta Suneel · officer · last filing Nov 2024Swisher Daniel N Jr · director · last filing Oct 2023Noonberg Sarah B. · director · last filing Jan 2023Liu David Y · officer · last filing Nov 2022Kalkofen Donald A. · officer · last filing Feb 2022Saks Samuel R · officer · last filing Feb 2021Khosla Chaitan Phd · director · last filing Aug 2020Shames Richard S. · officer · last filing Mar 2019Murphy Niall · officer · last filing Jan 2019O'Neil Thomas P. · officer · last filing Aug 2018Shanafelt Armen · director · last filing Jun 2018Canaan Partners X LLC · director · last filing May 2018Canaan X L.P. · director · last filing May 2018Adage Capital Advisors, L.L.C. · 10% owner · last filing Jan 2018Adage Capital Partners Gp, L.L.C. · 10% owner · last filing Jan 2018Adage Capital Partners, L.P. · 10% owner · last filing Jan 2018Atchinson Robert · 10% owner · last filing Jan 2018Gross Phillip · 10% owner · last filing Jan 2018Papanek Julie · director · last filing May 2017Hodder William A · officer · last filing Oct 2016Johnson & Johnson · 10% owner · last filing Aug 2016Johnson & Johnson Innovation - Jjdc, Inc. · 10% owner · last filing Aug 2016Hall Steven Edward · 10% owner · last filing Aug 2016Lilly Ventures Fund I LLC · 10% owner · last filing Aug 2016Lv Management Group, LLC · 10% owner · last filing Aug 2016Torres S. Edward · 10% owner · last filing Aug 2016
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.