PTGX · Protagonist Therapeutics Inc. Common Stock
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| Dinesh V. Ph D. Patel President and CEO | ▼ Sell | Open Market | 523,478 Shares held | 8/11/2026 | View profile |
| Gupta Suneel Chief Development Officer | ▲ Buy | Option Exercise | 267,433 Shares held | 11/26/2024 | View profile |
| Liu David Y Chief Scientific Officer | ▲ Buy | Option Exercise | 167,590 Shares held | 11/16/2022 | View profile |
| Arturo Molina, MD Chief Medical Officer | ▼ Sell | Open Market | 84,115 Shares held | 3/26/2026 | View profile |
| Harold E. Selick Director | ▼ Sell | Open Market | 60,845 Shares held | 3/26/2026 | View profile |
| Asif Ali Chief Financial Officer | ▼ Sell | Open Market | 59,003 Shares held | 4/20/2026 | View profile |
| Kalkofen Donald A. Chief Financial Officer | ▲ Buy | Grant | 18,521 Shares held | 2/15/2022 | View profile |
| Bryan Giraudo COO/CFO | ▼ Sell | Open Market | 12,695 Shares held | 5/8/2026 | View profile |
| William D. Waddill Director | ▼ Sell | Open Market | 7,825 Shares held | 6/23/2026 | View profile |
| Lewis T. Williams Director | ▼ Sell | Open Market | 7,825 Shares held | 2/17/2026 | View profile |
| Sarah A. O'Dowd Director | ▲ Buy | Grant | 7,825 Shares held | 1/2/2026 | View profile |
Transaction History
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 34,239 | $739K | 8/11/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 34,239 | $5.1M | 8/11/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 65,761 | $1.4M | 8/10/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 65,761 | $9.8M | 8/10/2026 |
| William D. Waddill | ▲ Buy | Option Exercise | 9,000 | $149K | 6/23/2026 |
| William D. Waddill | ▼ Sell | Open Market | 9,000 | $1.1M | 6/23/2026 |
| William D. Waddill | ▲ Buy | Option Exercise | 3,000 | $35K | 6/10/2026 |
| William D. Waddill | ▲ Buy | Option Exercise | 6,000 | $99K | 6/10/2026 |
| William D. Waddill | ▼ Sell | Open Market | 9,000 | $969K | 6/10/2026 |
| William D. Waddill | ▲ Buy | Option Exercise | 9,000 | $106K | 5/29/2026 |
| William D. Waddill | ▼ Sell | Open Market | 9,000 | $897K | 5/29/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 75,000 | $1.6M | 5/12/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 75,000 | $7.5M | 5/12/2026 |
| Bryan Giraudo | ▼ Sell | Open Market | 6,000 | $600K | 5/8/2026 |
| Bryan Giraudo | ▼ Sell | Open Market | 5,130 | $513K | 5/8/2026 |
| Bryan Giraudo | ▼ Sell | Open Market | 36,000 | $3.6M | 5/7/2026 |
| Bryan Giraudo | ▲ Buy | Option Exercise | 24,000 | $155K | 5/7/2026 |
| Bryan Giraudo | ▲ Buy | Option Exercise | 12,000 | $84K | 5/7/2026 |
| Bryan Giraudo | ▼ Sell | Open Market | 12,000 | $1.2M | 5/7/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 1,460 | $0 | 4/23/2026 |
| Asif Ali | ▼ Sell | Open Market | 1,750 | $185K | 4/20/2026 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 15,000 | $121K | 3/26/2026 |
| Arturo Molina, MD | ▼ Sell | Open Market | 15,000 | $1.6M | 3/26/2026 |
| Harold E. Selick | ▲ Buy | Option Exercise | 24,000 | $309K | 3/26/2026 |
| Harold E. Selick | ▼ Sell | Open Market | 24,000 | $2.5M | 3/26/2026 |
| Asif Ali | ▲ Buy | Option Exercise | 19,500 | $374K | 3/26/2026 |
| Asif Ali | ▲ Buy | Option Exercise | 5,265 | $64K | 3/26/2026 |
| Asif Ali | ▼ Sell | Open Market | 24,765 | $2.6M | 3/26/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 54,641 | $469K | 3/25/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 54,641 | $5.5M | 3/25/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 59 | $506 | 3/24/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 59 | $6K | 3/24/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 50,000 | $0 | 3/23/2026 |
| Lewis T. Williams | ▲ Buy | Option Exercise | 18,000 | $195K | 2/17/2026 |
| Lewis T. Williams | ▼ Sell | Open Market | 18,000 | $1.5M | 2/17/2026 |
| William D. Waddill | ▲ Buy | Option Exercise | 20,000 | $166K | 2/6/2026 |
| William D. Waddill | ▼ Sell | Open Market | 20,000 | $1.7M | 2/6/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 4,068 | $88K | 1/27/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 4,068 | $338K | 1/27/2026 |
| Asif Ali | ▲ Buy | Option Exercise | 16,000 | $307K | 1/27/2026 |
| Asif Ali | ▲ Buy | Option Exercise | 12,000 | $146K | 1/27/2026 |
| Asif Ali | ▼ Sell | Open Market | 28,000 | $2.3M | 1/27/2026 |
| Asif Ali | ▼ Sell | Open Market | 18,203 | $1.5M | 1/27/2026 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 5,000 | $40K | 1/27/2026 |
| Arturo Molina, MD | ▼ Sell | Open Market | 5,000 | $410K | 1/27/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 10,685 | $45K | 1/26/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 10,685 | $898K | 1/26/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 14,205 | $307K | 1/26/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 14,205 | $1.2M | 1/26/2026 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 5,000 | $40K | 1/26/2026 |
| Arturo Molina, MD | ▼ Sell | Open Market | 5,000 | $411K | 1/26/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 6,000 | $0 | 1/23/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 19,315 | $81K | 1/23/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 19,315 | $1.6M | 1/23/2026 |
| Arturo Molina, MD | ▼ Sell | Open Market | 13,151 | $1.1M | 1/23/2026 |
| Arturo Molina, MD | ▼ Sell | Open Market | 9,514 | $785K | 1/20/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 34,438 | $2.8M | 1/20/2026 |
| Asif Ali | ▼ Sell | Open Market | 8,588 | $708K | 1/20/2026 |
| Harold E. Selick | ▲ Buy | Option Exercise | 14,299 | $60K | 1/9/2026 |
| Harold E. Selick | ▲ Buy | Grant | 2,695 | $0 | 1/2/2026 |
| William D. Waddill | ▲ Buy | Grant | 2,695 | $0 | 1/2/2026 |
| Bryan Giraudo | ▲ Buy | Grant | 2,695 | $0 | 1/2/2026 |
| Lewis T. Williams | ▲ Buy | Grant | 2,695 | $0 | 1/2/2026 |
| Sarah A. O'Dowd | ▲ Buy | Grant | 2,695 | $0 | 1/2/2026 |
| Dinesh V. Ph D. Patel | ▲ Buy | Grant | 95,400 | $0 | 1/2/2026 |
| Asif Ali | ▲ Buy | Grant | 25,600 | $0 | 1/2/2026 |
| Arturo Molina, MD | ▲ Buy | Grant | 25,600 | $0 | 1/2/2026 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 440 | $0 | 11/21/2025 |
| Arturo Molina, MD | ▼ Sell | Open Market | 2,712 | $230K | 11/17/2025 |
| William D. Waddill | ▲ Buy | Option Exercise | 12,000 | $84K | 10/10/2025 |
| William D. Waddill | ▼ Sell | Open Market | 4,000 | $277K | 10/10/2025 |
| William D. Waddill | ▼ Sell | Open Market | 8,000 | $702K | 10/10/2025 |
| William D. Waddill | ▼ Sell | Open Market | 4,000 | $257K | 9/22/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 620 | $0 | 9/16/2025 |
| William D. Waddill | ▼ Sell | Open Market | 4,000 | $237K | 8/27/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 10,415 | $571K | 7/25/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 17,520 | $960K | 7/23/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 22,065 | $1.2M | 7/22/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 12,859 | $705K | 7/21/2025 |
| Dinesh V. Ph D. Patel | ▲ Buy | Grant | 25,000 | $0 | 7/21/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 5,000 | $0 | 7/16/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 685 | $0 | 6/16/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 670 | $0 | 6/13/2025 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 10,000 | $80K | 6/10/2025 |
| Arturo Molina, MD | ▼ Sell | Open Market | 10,000 | $570K | 6/10/2025 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 10,000 | $80K | 6/9/2025 |
| Arturo Molina, MD | ▼ Sell | Open Market | 10,000 | $555K | 6/9/2025 |
| Harold E. Selick | ▲ Buy | Option Exercise | 10,725 | $12K | 4/28/2025 |
| Asif Ali | ▼ Sell | Open Market | 1,756 | $81K | 4/22/2025 |
| William D. Waddill | ▼ Sell | Open Market | 4,000 | $217K | 3/17/2025 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 28,437 | $666K | 3/13/2025 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 2,077 | $81K | 3/13/2025 |
| Arturo Molina, MD | ▼ Sell | Open Market | 30,514 | $1.7M | 3/13/2025 |
| Asif Ali | ▲ Buy | Option Exercise | 15,203 | $185K | 3/12/2025 |
| Asif Ali | ▲ Buy | Option Exercise | 9,700 | $186K | 3/12/2025 |
| Asif Ali | ▼ Sell | Open Market | 24,903 | $1.5M | 3/12/2025 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 24,000 | $101K | 3/5/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 5,359 | $205K | 2/19/2025 |
| Arturo Molina, MD | ▼ Sell | Open Market | 388 | $0 | 1/16/2025 |
| Arturo Molina, MD | ▼ Sell | Open Market | 3,252 | $0 | 1/16/2025 |
| Asif Ali | ▼ Sell | Open Market | 1,317 | $0 | 1/16/2025 |
| Asif Ali | ▼ Sell | Open Market | 2,601 | $0 | 1/16/2025 |
| Dinesh V. Ph D. Patel | ▼ Sell | Tax Withholding | 12,636 | $0 | 1/15/2025 |
| William D. Waddill | ▲ Buy | Grant | 5,130 | $0 | 1/2/2025 |
| Sarah A. O'Dowd | ▲ Buy | Grant | 5,130 | $0 | 1/2/2025 |
| Lewis T. Williams | ▲ Buy | Grant | 5,130 | $0 | 1/2/2025 |
| Harold E. Selick | ▲ Buy | Grant | 5,130 | $0 | 1/2/2025 |
| Dinesh V. Ph D. Patel | ▲ Buy | Grant | 149,800 | $0 | 1/2/2025 |
| Bryan Giraudo | ▲ Buy | Grant | 5,130 | $0 | 1/2/2025 |
| Arturo Molina, MD | ▲ Buy | Grant | 41,088 | $0 | 1/2/2025 |
| Asif Ali | ▲ Buy | Grant | 31,779 | $0 | 1/2/2025 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 10,000 | $80K | 11/27/2024 |
| Arturo Molina, MD | ▼ Sell | Open Market | 10,000 | $445K | 11/27/2024 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 16,000 | $129K | 11/27/2024 |
| Arturo Molina, MD | ▼ Sell | Open Market | 16,000 | $717K | 11/27/2024 |
| Arturo Molina, MD | ▲ Buy | Option Exercise | 5,529 | $44K | 11/26/2024 |
| Arturo Molina, MD | ▼ Sell | Open Market | 5,529 | $252K | 11/26/2024 |
| Gupta Suneel | ▲ Buy | Option Exercise | 30,000 | $365K | 11/26/2024 |
| Gupta Suneel | ▼ Sell | Open Market | 19,191 | $873K | 11/26/2024 |
| Gupta Suneel | ▲ Buy | Option Exercise | 450 | $5K | 11/26/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 21,480 | $993K | 11/26/2024 |
| Gupta Suneel | ▲ Buy | Option Exercise | 45,000 | $332K | 11/25/2024 |
| Gupta Suneel | ▲ Buy | Option Exercise | 45,000 | $361K | 11/25/2024 |
| Gupta Suneel | ▲ Buy | Option Exercise | 85,000 | $663K | 11/25/2024 |
| Gupta Suneel | ▼ Sell | Open Market | 103,437 | $4.8M | 11/25/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 78,520 | $3.7M | 11/25/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 7,000 | $0 | 11/25/2024 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 1,727 | $37K | 11/25/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 1,000 | $0 | 11/19/2024 |
| Arturo Molina, MD | ▼ Sell | Open Market | 1,906 | $78K | 11/15/2024 |
| Asif Ali | ▼ Sell | Open Market | 2,203 | $98K | 9/11/2024 |
| Asif Ali | ▲ Buy | Option Exercise | 6,000 | $115K | 9/11/2024 |
| Asif Ali | ▲ Buy | Option Exercise | 6,000 | $73K | 9/11/2024 |
| Asif Ali | ▼ Sell | Open Market | 12,000 | $534K | 9/11/2024 |
| William D. Waddill | ▲ Buy | Option Exercise | 8,000 | $103K | 9/10/2024 |
| William D. Waddill | ▼ Sell | Open Market | 8,000 | $360K | 9/10/2024 |
| William D. Waddill | ▲ Buy | Option Exercise | 8,000 | $103K | 7/24/2024 |
| William D. Waddill | ▼ Sell | Open Market | 8,000 | $320K | 7/24/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 1,000 | $0 | 6/13/2024 |
| William D. Waddill | ▲ Buy | Option Exercise | 8,000 | $103K | 6/7/2024 |
| William D. Waddill | ▼ Sell | Open Market | 8,000 | $280K | 6/7/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 35,000 | $1.2M | 6/7/2024 |
| Asif Ali | ▼ Sell | Open Market | 1,234 | $31K | 4/18/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 25,000 | $708K | 4/1/2024 |
| Harold E. Selick | ▲ Buy | Option Exercise | 6,490 | $12K | 3/7/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 30,000 | $949K | 3/1/2024 |
| William D. Waddill | ▲ Buy | Option Exercise | 12,975 | $79K | 3/1/2024 |
| William D. Waddill | ▼ Sell | Open Market | 12,975 | $407K | 3/1/2024 |
| Asif Ali | ▲ Buy | Option Exercise | 12,000 | $146K | 3/1/2024 |
| Asif Ali | ▼ Sell | Open Market | 12,000 | $387K | 3/1/2024 |
| Asif Ali | ▼ Sell | Open Market | 2,248 | $73K | 3/1/2024 |
| Asif Ali | ▼ Sell | Open Market | 7,850 | $240K | 2/29/2024 |
| Asif Ali | ▼ Sell | Open Market | 2,089 | $65K | 2/29/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Tax Withholding | 10,915 | $322K | 2/26/2024 |
| Gupta Suneel | ▼ Sell | Tax Withholding | 4,282 | $126K | 2/26/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Tax Withholding | 3,717 | $105K | 2/15/2024 |
| Arturo Molina, MD | ▼ Sell | Tax Withholding | 427 | $11K | 1/16/2024 |
| Asif Ali | ▼ Sell | Tax Withholding | 1,452 | $36K | 1/16/2024 |
| Gupta Suneel | ▲ Buy | Option Exercise | 5,000 | $37K | 1/9/2024 |
| Gupta Suneel | ▼ Sell | Open Market | 5,000 | $125K | 1/9/2024 |
| Dinesh V. Ph D. Patel | ▲ Buy | Grant | 84,875 | $0 | 1/2/2024 |
| Arturo Molina, MD | ▲ Buy | Grant | 26,250 | $0 | 1/2/2024 |
| Asif Ali | ▲ Buy | Grant | 21,000 | $0 | 1/2/2024 |
| Gupta Suneel | ▲ Buy | Grant | 19,250 | $0 | 1/2/2024 |
| Dinesh V. Ph D. Patel | ▼ Sell | Open Market | 75,000 | $1.5M | 12/13/2023 |
| Arturo Molina, MD | ▼ Sell | Open Market | 1,848 | $30K | 11/15/2023 |
| Gupta Suneel | ▲ Buy | Option Exercise | 20,000 | $148K | 10/19/2023 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 6,000 | $25K | 10/18/2023 |
| Gupta Suneel | ▲ Buy | Grant | 12,000 | $0 | 5/31/2023 |
| Gupta Suneel | ▼ Sell | Tax Withholding | 4,150 | $108K | 5/31/2023 |
| Dinesh V. Ph D. Patel | ▲ Buy | Grant | 30,000 | $0 | 5/31/2023 |
| Dinesh V. Ph D. Patel | ▼ Sell | Tax Withholding | 12,165 | $317K | 5/31/2023 |
| Asif Ali | ▲ Buy | Grant | 12,000 | $0 | 5/31/2023 |
| Asif Ali | ▼ Sell | Tax Withholding | 4,150 | $108K | 5/31/2023 |
| Asif Ali | ▼ Sell | Tax Withholding | 1,189 | $28K | 4/18/2023 |
| Harold E. Selick | ▲ Buy | Option Exercise | 6,196 | $5K | 4/10/2023 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 10,000 | $0 | 2/22/2023 |
| Gupta Suneel | ▲ Buy | Grant | 20,625 | $0 | 1/16/2023 |
| Asif Ali | ▲ Buy | Grant | 10,625 | $0 | 1/16/2023 |
| Arturo Molina, MD | ▲ Buy | Grant | 3,125 | $0 | 1/16/2023 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 3,116 | $0 | 12/28/2022 |
| Liu David Y | ▲ Buy | Option Exercise | 13,767 | $12K | 11/16/2022 |
| Liu David Y | ▲ Buy | Option Exercise | 9,726 | $18K | 11/16/2022 |
| Liu David Y | ▲ Buy | Option Exercise | 5,999 | $11K | 11/16/2022 |
| Liu David Y | ▲ Buy | Option Exercise | 35,656 | $41K | 11/16/2022 |
| Liu David Y | ▲ Buy | Option Exercise | 35,331 | $149K | 11/16/2022 |
| Arturo Molina, MD | ▲ Buy | Grant | 21,250 | $0 | 11/15/2022 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 20,000 | $84K | 8/23/2022 |
| Dinesh V. Ph D. Patel | ▼ Sell | Gift | 3,000 | $0 | 5/4/2022 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 15,742 | $66K | 5/4/2022 |
| William D. Waddill | ▲ Buy | Option Exercise | 12,000 | $103K | 5/3/2022 |
| Gupta Suneel | ▲ Buy | Option Exercise | 40,000 | $295K | 4/26/2022 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 30,000 | $126K | 4/26/2022 |
| Asif Ali | ▲ Buy | Grant | 13,750 | $0 | 4/18/2022 |
| Dinesh V. Ph D. Patel | ▲ Buy | Option Exercise | 34,087 | $64K | 4/14/2022 |
| Gupta Suneel | ▼ Sell | Tax Withholding | 649 | $16K | 2/28/2022 |
| Dinesh V. Ph D. Patel | ▼ Sell | Tax Withholding | 4,648 | $113K | 2/28/2022 |
| Liu David Y | ▼ Sell | Tax Withholding | 2,119 | $51K | 2/28/2022 |
| Kalkofen Donald A. | ▲ Buy | Grant | 7,500 | $0 | 2/15/2022 |
| Liu David Y | ▲ Buy | Grant | 10,000 | $0 | 2/15/2022 |