Real time insider trading transaction history:
- Insiders are prohibited from making short-swing profits by trading their shares within 6 months of the registration or acquiring the shares.
"Insiders might sell their shares for any number of reasons, but they buy them for only one: they think the price will rise"
- Peter Lynch
What is insider trading>>
- Peter Lynch
What is insider trading>>

Common stock purchase or sale:
Transaction Date | Reported DateTime | Company | Symbol | Insider Relationship | Shares Traded | Average Price | Total Amount | Shares Owned | Filing |
2021-12-21 Sale | 2021-12-23 4:17 pm | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 15,000 | $32.14 | $482,171 | 477,158 (Direct) | View |
2021-08-17 Sale | 2021-08-19 5:49 pm | Protagonist Therapeutics Inc | PTGX | Liu David Y Chief Scientific Officer | 14,779 | $47.56 | $702,889 | 72,021 (Direct) | View |
2021-02-10 Sale | 2021-02-12 6:36 pm | Protagonist Therapeutics Inc | PTGX | Noonberg Sarah B. Director | 8,400 | $25.3 | $212,555 | 10,900 (Direct) | View |
2021-01-19 Sale | 2021-01-20 8:20 pm | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 24,846 | $24.6 | $611,105 | 591,886 (Direct) | View |
2020-08-11 Sale | 2020-08-12 5:38 pm | Protagonist Therapeutics Inc | PTGX | KHOSLA CHAITAN PHD Director | 2,499 | $17.19 | $42,952 | 7,499 (Direct) | View |
Stock options: Exercise, Award, Grant, Conversion
Transaction Date | Reported DateTime | Exercisable Expiration | Company | Symnbol | Insider Relationship | Shares Traded | Conversion Price | Shares Owned | Filing |
2022-05-26 Option Award | 2022-05-27 4:02 pm | N/A 2032-05-26 | Protagonist Therapeutics Inc | PTGX | Waddill William D. Director | 20,000 | $0 | 20,000 (Direct) | View |
2022-05-26 Option Award | 2022-05-27 4:02 pm | N/A 2032-05-26 | Protagonist Therapeutics Inc | PTGX | O'Dowd Sarah A Director | 20,000 | $0 | 20,000 (Direct) | View |
2022-05-26 Option Award | 2022-05-27 4:01 pm | N/A 2032-05-26 | Protagonist Therapeutics Inc | PTGX | Noonberg Sarah B. Director | 20,000 | $0 | 20,000 (Direct) | View |
2022-05-26 Option Award | 2022-05-27 4:01 pm | N/A 2032-05-26 | Protagonist Therapeutics Inc | PTGX | Williams Lewis T Director | 20,000 | $0 | 20,000 (Direct) | View |
2022-05-26 Option Award | 2022-05-27 4:00 pm | N/A 2032-05-26 | Protagonist Therapeutics Inc | PTGX | SELICK HAROLD E Director | 20,000 | $0 | 20,000 (Direct) | View |
2022-05-26 Option Award | 2022-05-27 4:00 pm | N/A 2032-05-26 | Protagonist Therapeutics Inc | PTGX | Giraudo Bryan Director | 20,000 | $0 | 20,000 (Direct) | View |
2022-05-03 Exercise | 2022-05-04 8:41 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | Waddill William D. Director | 12,000 | $8.59 | 12,000 (Direct) | View |
2022-05-03 Exercise | 2022-05-04 8:41 pm | N/A 2027-05-25 | Protagonist Therapeutics Inc | PTGX | Waddill William D. Director | 12,000 | $0 | 12,000 (Direct) | View |
2022-05-04 Exercise | 2022-05-04 8:33 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 15,742 | $4.21 | 664,048 (Direct) | View |
2022-05-04 Exercise | 2022-05-04 8:33 pm | N/A 2026-04-29 | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 15,742 | $0 | 664,048 (Direct) | View |
2022-04-26 Exercise | 2022-04-26 9:42 pm | N/A 2029-01-14 | Protagonist Therapeutics Inc | PTGX | Gupta Suneel Chief Development Officer | 40,000 | $0 | 187,561 (Direct) | View |
2022-04-26 Exercise | 2022-04-26 9:42 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | Gupta Suneel Chief Development Officer | 40,000 | $7.38 | 187,561 (Direct) | View |
2022-04-26 Exercise | 2022-04-26 9:34 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 30,000 | $4.21 | 664,048 (Direct) | View |
2022-04-26 Exercise | 2022-04-26 9:34 pm | N/A 2026-04-29 | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 30,000 | $0 | 664,048 (Direct) | View |
2022-04-18 Option Award | 2022-04-19 7:48 pm | N/A 2032-04-18 | Protagonist Therapeutics Inc | PTGX | Ali Asif CFO | 96,250 | $0 | 96,250 (Direct) | View |
2022-04-14 Exercise | 2022-04-14 8:09 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO 10% Owner | 34,087 | $1.89 | 537,847 (Direct) | View |
2022-04-14 Exercise | 2022-04-14 8:09 pm | N/A 2024-10-22 | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO 10% Owner | 34,087 | $0 | 537,847 (Direct) | View |
2022-02-28 Tax Withholding | 2022-03-02 8:40 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | Gupta Suneel Chief Development Officer | 649 | $24.28 | 77,007 (Direct) | View |
2022-02-28 Tax Withholding | 2022-03-02 8:39 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 4,648 | $24.28 | 503,760 (Direct) | View |
2022-02-28 Tax Withholding | 2022-03-02 8:38 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | Liu David Y Chief Scientific Officer | 2,119 | $24.28 | 66,538 (Direct) | View |
2022-02-15 Option Award | 2022-02-17 7:26 pm | N/A 2032-02-14 | Protagonist Therapeutics Inc | PTGX | Kalkofen Donald A. CFO | 52,500 | $0 | 63,521 (Direct) | View |
2022-02-15 Option Award | 2022-02-17 7:25 pm | N/A 2032-02-14 | Protagonist Therapeutics Inc | PTGX | Liu David Y Chief Scientific Officer | 70,000 | $0 | 128,657 (Direct) | View |
2022-02-15 Option Award | 2022-02-17 7:24 pm | N/A 2032-02-14 | Protagonist Therapeutics Inc | PTGX | Gupta Suneel Chief Development Officer | 87,500 | $0 | 152,656 (Direct) | View |
2022-02-15 Option Award | 2022-02-17 7:23 pm | N/A 2032-02-14 | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 218,750 | $0 | 695,908 (Direct) | View |
2021-09-21 Exercise | 2021-09-21 9:45 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 40,000 | $4.21 | 617,900 (Direct) | View |
2021-09-21 Exercise | 2021-09-21 9:45 pm | N/A 2026-04-29 | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 40,000 | $0 | 617,900 (Direct) | View |
2021-08-17 Exercise | 2021-08-19 5:49 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | Liu David Y Chief Scientific Officer | 10,000 | $0.87 | 72,021 (Direct) | View |
2021-08-17 Exercise | 2021-08-19 5:49 pm | N/A 2023-09-26 | Protagonist Therapeutics Inc | PTGX | Liu David Y Chief Scientific Officer | 10,000 | $0 | 72,021 (Direct) | View |
2021-05-27 Option Award | 2021-05-28 7:06 pm | N/A 2031-05-26 | Protagonist Therapeutics Inc | PTGX | Williams Lewis T Director | 18,000 | $0 | 18,000 (Direct) | View |
2021-05-27 Option Award | 2021-05-28 7:02 pm | N/A 2031-05-26 | Protagonist Therapeutics Inc | PTGX | Waddill William D. Director | 18,000 | $0 | 18,000 (Direct) | View |
2021-05-27 Option Award | 2021-05-28 7:00 pm | N/A 2031-05-26 | Protagonist Therapeutics Inc | PTGX | SELICK HAROLD E Director | 18,000 | $0 | 18,000 (Direct) | View |
2021-05-27 Option Award | 2021-05-28 6:50 pm | N/A 2031-05-26 | Protagonist Therapeutics Inc | PTGX | O'Dowd Sarah A Director | 18,000 | $0 | 18,000 (Direct) | View |
2021-05-27 Option Award | 2021-05-28 6:43 pm | N/A 2031-05-26 | Protagonist Therapeutics Inc | PTGX | Noonberg Sarah B. Director | 18,000 | $0 | 18,000 (Direct) | View |
2021-05-27 Option Award | 2021-05-28 6:39 pm | N/A 2031-05-26 | Protagonist Therapeutics Inc | PTGX | Giraudo Bryan Director | 18,000 | $0 | 18,000 (Direct) | View |
2021-02-26 Option Award | 2021-02-26 6:35 pm | N/A 2031-02-25 | Protagonist Therapeutics Inc | PTGX | Saks Samuel R Chief Medical Officer | 102,000 | $0 | 104,000 (Direct) | View |
2021-02-26 Option Award | 2021-02-26 6:33 pm | N/A 2031-02-25 | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 250,000 | $0 | 676,144 (Direct) | View |
2021-02-26 Option Award | 2021-02-26 6:31 pm | N/A 2031-02-25 | Protagonist Therapeutics Inc | PTGX | Liu David Y Chief Scientific Officer | 75,000 | $0 | 127,427 (Direct) | View |
2021-02-26 Option Award | 2021-02-26 6:29 pm | N/A 2031-02-25 | Protagonist Therapeutics Inc | PTGX | Kalkofen Donald A. CFO | 62,500 | $0 | 65,386 (Direct) | View |
2021-02-26 Option Award | 2021-02-26 6:27 pm | N/A 2031-02-25 | Protagonist Therapeutics Inc | PTGX | Gupta Suneel Chief Development Officer | 92,000 | $0 | 143,987 (Direct) | View |
2021-02-10 Option Award | 2021-02-12 6:36 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | Noonberg Sarah B. Director | 8,400 | $6.98 | 10,900 (Direct) | View |
2021-02-10 Exercise | 2021-02-12 6:36 pm | N/A 2028-05-28 | Protagonist Therapeutics Inc | PTGX | Noonberg Sarah B. Director | 8,400 | $0 | 10,900 (Direct) | View |
2021-01-19 Exercise | 2021-01-20 8:20 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 13,000 | $4.21 | 591,886 (Direct) | View |
2021-01-19 Exercise | 2021-01-20 8:20 pm | N/A 2026-04-29 | Protagonist Therapeutics Inc | PTGX | PATEL DINESH V PH D CEO | 13,000 | $0 | 591,886 (Direct) | View |
2020-08-17 Option Award | 2020-08-18 5:33 pm | N/A 2030-08-16 | Protagonist Therapeutics Inc | PTGX | O'Dowd Sarah A Director | 30,000 | $0 | 30,000 (Direct) | View |
2020-08-11 Exercise | 2020-08-12 5:38 pm | N/A N/A | Protagonist Therapeutics Inc | PTGX | KHOSLA CHAITAN PHD Director | 2,499 | $1.89 | 7,499 (Direct) | View |
2020-08-11 Exercise | 2020-08-12 5:38 pm | N/A 2024-10-22 | Protagonist Therapeutics Inc | PTGX | KHOSLA CHAITAN PHD Director | 2,499 | $0 | 7,499 (Direct) | View |
2020-05-28 Option Award | 2020-05-29 6:21 pm | N/A 2030-05-27 | Protagonist Therapeutics Inc | PTGX | Williams Lewis T Director | 15,000 | $0 | 15,000 (Direct) | View |