Insider Screener
Real-time Form 4 Filtering Engine
| Filing Date | Trade Date | Ticker | Company Name | Reporting Person | Relationship | Industry (by SEC) | Type | Price | Qty | Total, $ | Owned After | Change, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-05-12 23:28 | 2026-05-12 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | OPT+S | $100.12 | 75,000 | $7,509,000 | 523,478 | -12.5% |
| 2026-05-12 00:25 | 2026-05-07 | PTGX | Protagonist Therapeutics, Inc | Giraudo Bryan | Director | Pharmaceutical Preparations | OPT+S | $100.10 | 59,130 | $5,918,878 | 12,695 | -82.3% |
| 2026-04-21 20:58 | 2026-04-20 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | SALE | $105.47 | 1,750 | $184,573 | 59,003 | -2.9% |
| 2026-03-27 23:33 | 2026-03-26 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | OPT+S | $104.24 | 24,765 | $2,581,504 | 60,753 | -29.0% |
| 2026-03-27 23:34 | 2026-03-26 | PTGX | Protagonist Therapeutics, Inc | SELICK HAROLD E | Director | Pharmaceutical Preparations | OPT+S | $105.00 | 24,000 | $2,520,000 | 60,845 | -28.3% |
| 2026-03-27 23:36 | 2026-03-26 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | OPT+S | $104.79 | 15,000 | $1,571,850 | 84,115 | -15.1% |
| 2026-03-25 23:23 | 2026-03-24 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | OPT+S | $101.00 | 54,700 | $5,524,700 | 524,938 | -9.4% |
| 2026-02-19 02:12 | 2026-02-17 | PTGX | Protagonist Therapeutics, Inc | Williams Lewis T | Director | Pharmaceutical Preparations | OPT+S | $82.42 | 18,000 | $1,483,560 | 7,825 | -69.7% |
| 2026-02-07 00:38 | 2026-02-06 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | OPT+S | $83.68 | 20,000 | $1,673,600 | 7,825 | -71.9% |
| 2026-01-28 05:20 | 2026-01-27 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | OPT+S | $83.13 | 46,203 | $3,841,036 | 60,320 | -43.4% |
| 2026-01-28 05:19 | 2026-01-23 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | OPT+S | $82.30 | 23,151 | $1,905,306 | 84,115 | -21.6% |
| 2026-01-28 05:21 | 2026-01-23 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | OPT+S | $84.18 | 48,273 | $4,063,742 | 574,505 | -7.8% |
| 2026-01-22 01:17 | 2026-01-20 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | SALE | $82.48 | 9,514 | $784,715 | 97,266 | -8.9% |
| 2026-01-22 01:15 | 2026-01-20 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | SALE | $82.48 | 8,588 | $708,338 | 78,077 | -9.9% |
| 2026-01-22 01:16 | 2026-01-20 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $82.48 | 34,438 | $2,840,446 | 580,505 | -5.6% |
| 2025-11-20 00:01 | 2025-11-17 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | SALE | $84.77 | 2,712 | $229,896 | 81,180 | -3.2% |
| 2025-10-14 23:01 | 2025-10-10 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | OPT+S | $81.62 | 12,000 | $979,480 | 5,130 | -70.1% |
| 2025-09-25 03:35 | 2025-09-22 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | SALE | $64.25 | 4,000 | $257,000 | 5,130 | -43.8% |
| 2025-08-30 00:30 | 2025-08-27 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | SALE | $59.25 | 4,000 | $237,000 | 9,130 | -30.5% |
| 2025-07-29 01:08 | 2025-07-25 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $54.78 | 10,415 | $570,534 | 520,603 | -2.0% |
| 2025-07-24 01:57 | 2025-07-21 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $54.92 | 52,444 | $2,880,046 | 531,018 | -9.0% |
| 2025-06-12 00:40 | 2025-06-09 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | OPT+S | $56.27 | 20,000 | $1,125,400 | 83,892 | -19.3% |
| 2025-04-23 23:30 | 2025-04-22 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | SALE | $46.00 | 1,756 | $80,776 | 61,065 | -2.8% |
| 2025-03-19 23:01 | 2025-03-17 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | SALE | $54.25 | 4,000 | $217,000 | 13,130 | -23.4% |
| 2025-03-15 01:21 | 2025-03-13 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | OPT+S | $55.74 | 30,514 | $1,700,850 | 83,892 | -26.7% |
| 2025-03-15 01:20 | 2025-03-12 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | OPT+S | $58.73 | 24,903 | $1,462,553 | 62,821 | -28.4% |
| 2025-02-21 01:25 | 2025-02-19 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $38.18 | 5,359 | $204,607 | 540,260 | -1.0% |
| 2025-01-18 01:47 | 2025-01-16 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | SALE | $0.00 | 3,640 | $0 | 83,892 | -4.2% |
| 2025-01-18 01:45 | 2025-01-16 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | SALE | $0.00 | 3,918 | $0 | 62,821 | -5.9% |
| 2024-11-28 03:11 | 2024-11-26 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | OPT+S | $44.86 | 31,529 | $1,414,404 | 46,444 | -40.4% |
| 2024-11-28 03:09 | 2024-11-25 | PTGX | Protagonist Therapeutics, Inc | Gupta Suneel | Officer; Chief Development Officer | Pharmaceutical Preparations | OPT+S | $45.96 | 122,628 | $5,635,431 | 266,983 | -31.5% |
| 2024-11-28 03:08 | 2024-11-25 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | OPT+S | $46.81 | 100,000 | $4,680,750 | 408,455 | -19.7% |
| 2024-11-20 02:49 | 2024-11-15 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | SALE | $40.98 | 1,906 | $78,108 | 46,444 | -3.9% |
| 2024-09-13 23:35 | 2024-09-11 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | OPT+S | $44.49 | 14,203 | $631,872 | 34,960 | -28.9% |
| 2024-09-13 02:38 | 2024-09-10 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | OPT+S | $45.00 | 8,000 | $360,000 | 12,000 | -40.0% |
| 2024-07-26 23:31 | 2024-07-24 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | OPT+S | $40.00 | 8,000 | $320,000 | 12,000 | -40.0% |
| 2024-06-11 23:30 | 2024-06-07 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | OPT+S | $35.00 | 8,000 | $280,000 | 12,000 | -40.0% |
| 2024-06-11 23:30 | 2024-06-07 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $35.19 | 35,000 | $1,231,650 | 515,415 | -6.4% |
| 2024-04-20 03:05 | 2024-04-18 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | SALE | $25.11 | 1,234 | $30,986 | 37,163 | -3.2% |
| 2024-04-03 03:29 | 2024-04-01 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $28.31 | 25,000 | $707,750 | 549,590 | -4.4% |
| 2024-03-02 04:45 | 2024-03-01 | PTGX | Protagonist Therapeutics, Inc | Waddill William D. | Director | Pharmaceutical Preparations | OPT+S | $31.34 | 12,975 | $406,637 | 12,000 | -52.0% |
| 2024-03-02 04:45 | 2024-02-29 | PTGX | Protagonist Therapeutics, Inc | Ali Asif | Officer; Chief Financial Officer | Pharmaceutical Preparations | OPT+S | $31.60 | 24,187 | $764,365 | 38,397 | -38.6% |
| 2024-03-02 04:46 | 2024-03-01 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $31.62 | 30,000 | $948,600 | 574,590 | -5.0% |
| 2024-01-12 04:00 | 2024-01-09 | PTGX | Protagonist Therapeutics, Inc | Gupta Suneel | Officer; Chief Development Officer | Pharmaceutical Preparations | OPT+S | $25.00 | 5,000 | $125,000 | 187,567 | -2.6% |
| 2024-01-05 04:09 | 2023-11-15 | PTGX | Protagonist Therapeutics, Inc | MOLINA ARTURO MD | Officer; Chief Medical Officer | Pharmaceutical Preparations | SALE | $16.24 | 1,848 | $30,012 | 22,527 | -7.6% |
| 2023-12-16 00:30 | 2023-12-13 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $20.08 | 75,000 | $1,506,000 | 534,347 | -12.3% |
| 2021-12-24 00:17 | 2021-12-21 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | SALE | $32.14 | 15,000 | $482,171 | 477,158 | -3.0% |
| 2021-08-20 00:49 | 2021-08-17 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $47.56 | 14,779 | $702,889 | 58,254 | -20.2% |
| 2021-02-13 02:36 | 2021-02-10 | PTGX | Protagonist Therapeutics, Inc | Noonberg Sarah B. | Director | Pharmaceutical Preparations | OPT+S | $25.30 | 8,400 | $212,555 | 0 | -100.0% |
| 2021-01-21 04:20 | 2021-01-19 | PTGX | Protagonist Therapeutics, Inc | PATEL DINESH V PH D | Director, Officer; President and CEO | Pharmaceutical Preparations | OPT+S | $24.60 | 24,846 | $611,105 | 426,144 | -5.5% |
Strategic Signal Filtering
Our screener allows you to cut through the noise of routine stock grants and small trades. By focusing on high-value transactions from C-suite executives (CEO/CFO), you can identify where the "Smart Money" is being deployed with maximum conviction.
Investing Without Illusions
Insider data is not a magic wand, but it is the most honest indicator available. While insiders sell for many reasons (taxes, personal needs), they generally buy for only one: they believe the stock price is undervalued. We provide the tools to track these skin-in-the-game moves.
UNDERSTANDING THE DATA
FILING DATE: The date and time when the transaction was reported to the SEC. This is when the public first receives the information.
TRADE DATE: The actual day the insider executed the purchase or sale in the market.
INDUSTRY: The specific market sector the company operates in. Useful for identifying broader institutional capital flows across sectors.
OWNED AFTER: The total number of shares held by the insider following the transaction. This highlights the insider's remaining conviction in the company.
CHANGE %: The percentage increase or decrease of the insider's total position. Large percentage changes often carry more weight than the dollar amount alone.
TRADE TYPES DEFINITIONS
BUY: An open market purchase. Typically indicates an insider's belief that the stock is undervalued or poised for growth.
SELL: An open market sale. While often used for diversification or liquidity, large or unexpected sales can be a warning signal.
OPT+S (OPTION EXERCISE & SALE): This occurs when an insider exercises their stock options and sells them immediately. Often part of a structured compensation plan.