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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-03-05 03:31 | 2026-03-02 | PEN | Penumbra Inc | Yuen Maggie | Officer; Chief Financial Officer | Surgical & Medical Instruments & Apparatus | SALE | $342.30 | 2,432 | $832,474 | 18,353 | -11.7% |
| 2025-11-25 17:01 | 2025-11-21 | ATRC | AtriCure, Inc. | Yuen Maggie | Director | Surgical & Medical Instruments & Apparatus | SALE | $35.72 | 3,000 | $107,160 | 11,371 | -20.9% |
| 2025-08-16 02:49 | 2025-08-13 | PEN | Penumbra Inc | Yuen Maggie | Officer; Chief Financial Officer | Surgical & Medical Instruments & Apparatus | OPT+S | $250.00 | 2,000 | $500,000 | 12,943 | -13.4% |
| 2025-05-07 02:30 | 2025-05-02 | PEN | Penumbra Inc | Yuen Maggie | Officer; Chief Financial Officer | Surgical & Medical Instruments & Apparatus | OPT+S | $299.01 | 2,000 | $598,020 | 13,957 | -12.5% |
| 2025-03-06 03:35 | 2025-03-03 | PEN | Penumbra Inc | Yuen Maggie | Officer; Chief Financial Officer | Surgical & Medical Instruments & Apparatus | OPT+S | $286.00 | 2,000 | $571,995 | 15,243 | -11.6% |
| 2024-08-19 15:46 | 2024-08-15 | ATRC | AtriCure, Inc. | Yuen Maggie | Director | Surgical & Medical Instruments & Apparatus | SALE | $24.07 | 3,500 | $84,245 | 8,970 | -28.1% |
| 2023-05-30 23:05 | 2023-05-26 | ATRC | AtriCure, Inc. | Yuen Maggie | Director | Surgical & Medical Instruments & Apparatus | SALE | $47.04 | 4,313 | $202,884 | 4,682 | -47.9% |
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.