Insider holders · CIK 0001377121
Protagonist Therapeutics, Inc · PTGX
Every insider with a reported Table I holding at this company, ranked by their last-reported share count. A balance is only as fresh as its filing — the report date sits next to every row on purpose. ← Back to activity
| Insider | Direct shares | Indirect shares | Total reported | Last report (ET) | From |
|---|---|---|---|---|---|
| Julie PapanekDirector | — | 2,453,255 | 2,453,255 | Aug 16, 2016 · 6:30 pm EDT | Form 4 |
| Johnson & Johnson Innovation - JJDC, Inc.10% Owner | — | 2,449,183 | 2,449,183 | Aug 18, 2016 · 5:11 pm EDT | Form 4 |
| JOHNSON & JOHNSON10% Owner | — | 2,449,183 | 2,449,183 | Aug 18, 2016 · 5:11 pm EDT | Form 4 |
| Canaan Partners X LLC10% Owner | 2,116,552 | — | 2,116,552 | May 21, 2018 · 4:34 pm EDT | Form 4 |
| CANAAN X L.P.10% Owner | 2,116,552 | — | 2,116,552 | May 21, 2018 · 4:34 pm EDT | Form 4 |
| LV Management Group, LLC10% Owner | — | 2,099,482 | 2,099,482 | Aug 16, 2016 · 6:19 pm EDT | Form 4 |
| Armen ShanafeltDirector | — | 2,099,482 | 2,099,482 | Aug 16, 2016 · 6:20 pm EDT | Form 4 |
| Steven Edward Hall10% Owner | — | 2,099,482 | 2,099,482 | Aug 16, 2016 · 6:19 pm EDT | Form 4 |
| Lilly Ventures Fund I LLC10% Owner | — | 2,099,482 | 2,099,482 | Aug 16, 2016 · 6:19 pm EDT | Form 4 |
| S. Edward Torres10% Owner | — | 2,099,482 | 2,099,482 | Aug 16, 2016 · 6:19 pm EDT | Form 4 |
| Phillip Gross10% Owner | — | 2,056,076 | 2,056,076 | Jun 1, 2017 · 4:10 pm EDT | Form 3 |
| Robert Atchinson10% Owner | — | 2,056,076 | 2,056,076 | Jun 1, 2017 · 4:10 pm EDT | Form 3 |
| Adage Capital Advisors, L.L.C.10% Owner | — | 2,056,076 | 2,056,076 | Jun 1, 2017 · 4:10 pm EDT | Form 3 |
| ADAGE CAPITAL PARTNERS GP, L.L.C.10% Owner | — | 2,056,076 | 2,056,076 | Jun 1, 2017 · 4:10 pm EDT | Form 3 |
| Adage Capital Partners, L.P.10% Owner | — | 2,056,076 | 2,056,076 | Jun 1, 2017 · 4:10 pm EDT | Form 3 |
| Dinesh V Ph D PatelPresident and CEO | 522,968 | — | 522,968 | Sep 10, 2026 · 9:17 pm EDT | Form 4 |
| David Y LiuChief Scientific Officer | 51,197 | — | 51,197 | Mar 4, 2019 · 6:35 pm EST | Form 4 |
| Richard S. ShamesChief Medical Officer | 32,021 | — | 32,021 | Mar 4, 2019 · 6:29 pm EST | Form 4 |
| Thomas P. O'NeilChief Financial Officer | 30,560 | — | 30,560 | Aug 17, 2018 · 8:29 pm EDT | Form 4 |
| Suneel GuptaEVP Clinical Operations | 17,500 | — | 17,500 | Mar 4, 2019 · 6:27 pm EST | Form 4 |
| Bryan GiraudoDirector | 10,000 | — | 10,000 | May 17, 2018 · 5:48 pm EDT | Form 4 |
| William A HodderSr. VP - Corporate Development | 7,943 | — | 7,943 | Aug 10, 2016 · 8:06 pm EDT | Form 3 |
| William D. WaddillDirector | 7,825 | — | 7,825 | Jun 25, 2026 · 4:10 pm EDT | Form 4 |
| Samuel R SaksChief Development Officer | 2,500 | — | 2,500 | Mar 4, 2019 · 6:32 pm EST | Form 4 |
Balances come from each insider’s most recent filing that reports a Table I holding; an insider who left the company years ago still appears with their last-known figure and its date. Indirect totals collapse multiple vehicles (trusts, LLCs) into one number — open the filing for the breakdown. Shares as filed, not split-adjusted.