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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-27 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% |
| 2026-01-28 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% |
| 2026-01-22 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% |
| 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% |
| 2025-06-12 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% |
| 2025-03-15 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% |
| 2025-01-18 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% |
| 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% |
| 2024-11-20 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% |
| 2024-01-05 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% |
| 2020-05-15 00:27 | 2020-05-14 | STRO | SUTRO BIOPHARMA, INC. | MOLINA ARTURO MD | Officer; Chief Medical Officer | Biological Products, (No Diagnostic Substances) | BUY | $7.75 | 6,451 | $49,995 | 12,083 | +114.5% |
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.