According to recent filings covering the 90 days ending December 12, 2025, the three most significant insider holders at Protagonist Therapeutics are President And CEO Dinesh V Ph D Patel (519.54K shares), Chief Medical Officer Arturo Md Molina (81.18K shares), Director Harold E Selick (43.85K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Dinesh V Ph D Patel | President And CEO | 519,543 | 24 Nov, 2025 |
| Suneel Gupta | Chief Development Officer | 267,433 | 27 Nov, 2024 |
| David Y Liu | Chief R&D Strategy Officer | 167,590 | 17 Nov, 2022 |
| Arturo Md Molina | Chief Medical Officer | 81,180 | 19 Nov, 2025 |
| Asif Ali | Chief Financial Officer | 61,065 | 23 Apr, 2025 |
| Harold E Selick | 43,851 | 30 Apr, 2025 | |
| Donald A. Kalkofen | Chief Financial Officer | 18,521 | 17 Feb, 2022 |
| Bryan Giraudo | 15,130 | 06 Jan, 2025 | |
| Samuel R Saks | Chief Medical Officer | 14,000 | 26 Feb, 2021 |
| William D. Waddill | 5,130 | 14 Oct, 2025 | |
| Lewis T Williams | 5,130 | 06 Jan, 2025 | |
| Sarah A O'Dowd | 5,130 | 06 Jan, 2025 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 21 Nov, 2025 | Dinesh V Ph D Patel | Common Stock | D | 440 | $0.00 | 519,543 | D | G |
| 17 Nov, 2025 | Arturo Md Molina | Common Stock | D | 2,712 | $84.77 | 81,180 | D | S |
| 10 Oct, 2025 | William D. Waddill | Common Stock | A | 12,000 | $6.98 | 17,130 | D | M |
| 10 Oct, 2025 | William D. Waddill | Common Stock | D | 4,000 | $69.25 | 13,130 | D | S |
| 10 Oct, 2025 | William D. Waddill | Common Stock | D | 8,000 | $87.81 | 5,130 | D | S |
| 22 Sep, 2025 | William D. Waddill | Common Stock | D | 4,000 | $64.25 | 5,130 | D | S |
| 16 Sep, 2025 | Dinesh V Ph D Patel | Common Stock | D | 620 | $0.00 | 519,983 | D | G |
| 27 Aug, 2025 | William D. Waddill | Common Stock | D | 4,000 | $59.25 | 9,130 | D | S |
| 25 Jul, 2025 | Dinesh V Ph D Patel | Common Stock | D | 10,415 | $54.78 | 520,603 | D | S |
| 21 Jul, 2025 | Dinesh V Ph D Patel | Common Stock | A | 25,000 | $0.00 | 583,462 | D | A |
| 21 Jul, 2025 | Dinesh V Ph D Patel | Common Stock | D | 12,859 | $54.86 | 570,603 | D | S |
| 22 Jul, 2025 | Dinesh V Ph D Patel | Common Stock | D | 22,065 | $55.05 | 548,538 | D | S |
| 23 Jul, 2025 | Dinesh V Ph D Patel | Common Stock | D | 17,520 | $54.79 | 531,018 | D | S |
| 16 Jul, 2025 | Dinesh V Ph D Patel | Common Stock | D | 5,000 | $0.00 | 558,462 | D | G |
| 13 Jun, 2025 | Dinesh V Ph D Patel | Common Stock | D | 670 | $0.00 | 563,590 | D | G |
| 16 Jun, 2025 | Dinesh V Ph D Patel | Common Stock | D | 685 | $0.00 | 562,905 | D | G |
| 09 Jun, 2025 | Arturo Md Molina | - | - | 93,892 | D | |||
| 09 Jun, 2025 | Arturo Md Molina | Common Stock | A | 10,000 | $8.04 | 93,892 | D | M |
| 09 Jun, 2025 | Arturo Md Molina | - | - | 83,892 | D | |||
| 09 Jun, 2025 | Arturo Md Molina | Common Stock | D | 10,000 | $55.51 | 83,892 | D | S |