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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-02-26 03:11 | 2026-02-24 | XGN | EXAGEN INC. | Black Jeffrey G. | Officer; Chief Financial Officer | Services-Medical Laboratories | SALE | $3.61 | 1,584 | $5,718 | 267,442 | -0.6% |
| 2025-09-05 02:40 | 2025-09-02 | XGN | EXAGEN INC. | Black Jeffrey G. | Officer; Chief Financial Officer | Services-Medical Laboratories | SALE | $9.79 | 20,466 | $200,362 | 269,026 | -7.1% |
| 2024-11-20 03:24 | 2024-11-15 | XGN | EXAGEN INC. | Black Jeffrey G. | Officer; Chief Financial Officer | Services-Medical Laboratories | BUY | $2.98 | 22,298 | $66,448 | 274,492 | +8.8% |
| 2023-05-23 01:49 | 2023-05-18 | LAB | STANDARD BIOTOOLS INC. | Black Jeffrey G. | Officer; SVP & Chief Financial Officer | Laboratory Analytical Instruments | BUY | $2.25 | 85,984 | $193,576 | 85,984 | +100.0% |
| 2022-03-02 02:22 | 2022-02-25 | APEN | N/A | Black Jeffrey G. | Officer; Chief Financial Officer | Other | BUY | $5.73 | 40,000 | $229,100 | 265,000 | +17.8% |
| 2021-08-12 03:25 | 2021-08-11 | APEN | N/A | Black Jeffrey G. | Officer; Chief Financial Officer | Other | BUY | $8.75 | 25,000 | $218,750 | 25,000 | +100.0% |
| 2021-03-11 05:14 | 2021-03-09 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; EVP & CFO | Surgical & Medical Instruments & Apparatus | SALE | $16.69 | 7,000 | $116,830 | 620,770 | -1.1% |
| 2021-02-18 18:51 | 2021-02-16 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; EVP & CFO | Surgical & Medical Instruments & Apparatus | SALE | $16.28 | 25,000 | $407,000 | 627,770 | -3.8% |
| 2020-08-14 01:07 | 2020-08-11 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; EVP & CFO | Surgical & Medical Instruments & Apparatus | SALE | $6.42 | 5,000 | $32,100 | 652,770 | -0.8% |
| 2020-08-07 01:20 | 2020-08-04 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; EVP & CFO | Surgical & Medical Instruments & Apparatus | SALE | $5.03 | 8,929 | $44,913 | 657,770 | -1.3% |
| 2020-03-12 19:55 | 2020-03-10 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; EVP & CFO | Surgical & Medical Instruments & Apparatus | SALE | $5.08 | 6,563 | $33,307 | 505,299 | -1.3% |
| 2019-08-03 04:01 | 2019-08-02 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; EVP & CFO | Surgical & Medical Instruments & Apparatus | SALE | $4.75 | 8,929 | $42,368 | 511,862 | -1.7% |
| 2017-08-17 23:36 | 2017-08-17 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; Executive VP & CFO | Surgical & Medical Instruments & Apparatus | BUY | $1.80 | 5,000 | $9,000 | 34,000 | +17.2% |
| 2017-08-17 00:40 | 2017-08-16 | ATEC | Alphatec Holdings, Inc. | Black Jeffrey G. | Officer; Executive VP & CFO | Surgical & Medical Instruments & Apparatus | BUY | $1.75 | 4,000 | $7,000 | 79,000 | +5.3% |
| 2011-08-17 02:04 | 2011-08-15 | VRNM | N/A | Black Jeffrey G. | Officer; Chief Financial Officer | Other | BUY | $2.00 | 1,875 | $3,752 | 1,750 | +100.0% |
| 2010-08-18 21:48 | 2010-08-16 | VRNM | N/A | Black Jeffrey G. | Officer; Chief Accounting Officer | Other | BUY | $2.78 | 4,250 | $11,827 | 4,250 | +100.0% |
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.