Data spanning the past 90 days through February 07, 2026 reveals that Protagonist Therapeutics's three principal insider shareholders consist of President And Ceo Dinesh V Ph D Patel (574.50K shares), Chief Development Officer Suneel Gupta (267.43K shares), Chief R&D Strategy Officer David Y Liu (167.59K shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Dinesh V Ph D Patel | President And Ceo | 574,505 | 27 Jan, 2026 |
| 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 | 84,115 | 27 Jan, 2026 |
| Harold E Selick | 60,845 | 13 Jan, 2026 | |
| Asif Ali | Chief Financial Officer | 60,320 | 27 Jan, 2026 |
| Donald A. Kalkofen | Chief Financial Officer | 18,521 | 17 Feb, 2022 |
| Bryan Giraudo | 17,825 | 06 Jan, 2026 | |
| William D. Waddill | 7,825 | 06 Feb, 2026 | |
| Lewis T Williams | 7,825 | 06 Jan, 2026 | |
| Sarah A O'Dowd | 7,825 | 06 Jan, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 06 Feb, 2026 | William D. Waddill | Common Stock | D | 20,000 | $83.68 | 7,825 | D | S |
| 06 Feb, 2026 | William D. Waddill | Common Stock | A | 20,000 | $8.31 | 27,825 | D | M |
| 27 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | D | 4,068 | $83.19 | 574,505 | D | S |
| 27 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | A | 4,068 | $21.58 | 578,573 | D | M |
| 27 Jan, 2026 | Arturo Md Molina | Common Stock | A | 5,000 | $8.04 | 89,115 | D | M |
| 27 Jan, 2026 | Arturo Md Molina | Common Stock | D | 5,000 | $82.00 | 84,115 | D | S |
| 27 Jan, 2026 | Asif Ali | Common Stock | D | 28,000 | $83.13 | 78,523 | D | S |
| 27 Jan, 2026 | Asif Ali | Common Stock | A | 12,000 | $12.17 | 106,523 | D | M |
| 27 Jan, 2026 | Asif Ali | Common Stock | D | 18,203 | $83.14 | 60,320 | D | S |
| 27 Jan, 2026 | Asif Ali | Common Stock | A | 16,000 | $19.19 | 94,523 | D | M |
| 26 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | D | 14,205 | $84.05 | 574,505 | D | S |
| 26 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | D | 10,685 | $84.00 | 574,505 | D | S |
| 26 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | A | 10,685 | $4.21 | 585,190 | D | M |
| 26 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | A | 14,205 | $21.58 | 588,710 | D | M |
| 26 Jan, 2026 | Arturo Md Molina | Common Stock | A | 5,000 | $8.04 | 89,115 | D | M |
| 26 Jan, 2026 | Arturo Md Molina | Common Stock | D | 5,000 | $82.28 | 84,115 | D | S |
| 23 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | A | 19,315 | $4.21 | 593,820 | D | M |
| 23 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | D | 6,000 | $0.00 | 574,505 | D | G |
| 23 Jan, 2026 | Dinesh V Ph D Patel | Common Stock | D | 19,315 | $84.59 | 574,505 | D | S |
| 23 Jan, 2026 | Arturo Md Molina | Common Stock | D | 13,151 | $82.42 | 84,115 | D | S |