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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 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% |
| 2019-08-09 01:17 | 2019-08-06 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | SALE | $8.85 | 3,395 | $30,044 | 49,802 | -6.4% |
| 2019-03-05 02:35 | 2019-03-01 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | SALE | $8.03 | 810 | $6,504 | 51,197 | -1.6% |
| 2019-02-09 01:30 | 2019-02-06 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | SALE | $7.74 | 3,821 | $29,562 | 37,007 | -9.4% |
| 2018-03-13 23:48 | 2018-03-12 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $21.29 | 3,500 | $74,500 | 15,028 | -18.9% |
| 2018-03-03 03:17 | 2018-03-02 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $20.00 | 875 | $17,500 | 13,322 | -6.2% |
| 2018-01-18 00:34 | 2018-01-16 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $20.00 | 875 | $17,500 | 3,822 | -18.6% |
| 2017-12-21 05:13 | 2017-12-18 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $20.00 | 875 | $17,500 | 3,822 | -18.6% |
| 2017-12-02 02:56 | 2017-11-30 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $20.00 | 875 | $17,500 | 3,822 | -18.6% |
| 2017-11-16 03:14 | 2017-11-13 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $16.97 | 7,000 | $118,761 | 3,822 | -64.7% |
| 2017-08-30 02:48 | 2017-08-28 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $15.00 | 3,500 | $52,500 | 2,000 | -63.6% |
| 2017-07-13 00:55 | 2017-07-10 | PTGX | Protagonist Therapeutics, Inc | Liu David Y | Officer; Chief Scientific Officer | Pharmaceutical Preparations | OPT+S | $12.68 | 3,500 | $44,380 | 2,000 | -63.6% |
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.