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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-05-15 23:46 | 2025-04-18 | SCND | SCIENTIFIC INDUSTRIES INC | NICOLS JOHN J | Director | Laboratory Analytical Instruments | BUY | $1.00 | 15,000 | $15,000 | 30,000 | +100.0% |
| 2024-07-31 23:55 | 2023-12-13 | SCND | SCIENTIFIC INDUSTRIES INC | NICOLS JOHN J | Director | Laboratory Analytical Instruments | BUY | $2.00 | 15,000 | $30,000 | 15,000 | +100.0% |
| 2023-04-19 23:18 | 2023-04-17 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $4.19 | 71,428 | $299,255 | 783,965 | -8.4% |
| 2023-03-17 23:29 | 2023-03-15 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $4.10 | 71,428 | $292,812 | 783,965 | -8.4% |
| 2023-02-28 00:08 | 2023-02-23 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $5.11 | 75,499 | $385,875 | 783,965 | -8.8% |
| 2023-01-26 00:13 | 2023-01-23 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $6.50 | 75,499 | $490,940 | 823,750 | -8.4% |
| 2022-12-14 00:09 | 2022-12-09 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $5.67 | 75,499 | $427,815 | 863,535 | -8.0% |
| 2022-11-18 00:06 | 2022-11-15 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $6.59 | 75,500 | $497,553 | 903,320 | -7.7% |
| 2022-11-01 00:16 | 2022-10-27 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $5.61 | 75,502 | $423,566 | 943,106 | -7.4% |
| 2022-10-07 23:07 | 2022-10-05 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $6.02 | 75,503 | $454,234 | 982,892 | -7.1% |
| 2022-08-16 23:03 | 2022-08-12 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director | Industrial Organic Chemicals | OPT+S | $8.70 | 77,500 | $674,351 | 1,022,679 | -7.0% |
| 2022-05-13 23:04 | 2022-05-11 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $10.31 | 77,000 | $793,878 | 1,022,679 | -7.0% |
| 2022-03-12 01:43 | 2022-03-09 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $19.11 | 77,000 | $1,471,724 | 1,022,679 | -7.0% |
| 2021-11-13 00:21 | 2021-11-10 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $39.32 | 73,500 | $2,890,336 | 1,022,679 | -6.7% |
| 2021-08-16 23:06 | 2021-08-12 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $24.15 | 70,000 | $1,690,339 | 1,022,679 | -6.4% |
| 2021-05-19 23:11 | 2021-05-17 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $18.45 | 70,385 | $1,298,786 | 1,022,679 | -6.4% |
| 2019-08-23 04:32 | 2019-08-20 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | BUY | $13.30 | 10,000 | $133,000 | 1,082,679 | +0.9% |
| 2019-03-21 00:30 | 2019-03-18 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $20.83 | 55,072 | $1,147,221 | 1,072,679 | -4.9% |
| 2018-12-11 01:36 | 2018-12-06 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $21.78 | 43,812 | $954,041 | 1,072,679 | -3.9% |
| 2018-10-02 04:52 | 2018-09-27 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $17.57 | 80,000 | $1,405,672 | 1,072,679 | -6.9% |
| 2018-08-17 00:28 | 2018-08-14 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $15.14 | 14,259 | $215,940 | 1,072,679 | -1.3% |
| 2018-06-13 02:11 | 2018-06-08 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $15.18 | 9,007 | $136,700 | 1,072,679 | -0.8% |
| 2018-03-24 03:30 | 2018-03-22 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President and CEO | Industrial Organic Chemicals | OPT+S | $11.57 | 22,465 | $259,828 | 1,072,679 | -2.1% |
| 2013-03-12 00:56 | 2013-03-08 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President & CEO | Industrial Organic Chemicals | BUY | $2.42 | 27,000 | $65,402 | 911,000 | +3.1% |
| 2013-03-08 02:15 | 2013-03-06 | CDXS | CODEXIS, INC. | NICOLS JOHN J | Director, Officer; President & CEO | Industrial Organic Chemicals | BUY | $2.22 | 54,000 | $119,621 | 884,000 | +6.5% |
| 2012-04-24 23:46 | 2012-04-20 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; Sr VP, Strat Dev & Catalysts | Plastic Materials, Synth Resins & Nonvulcan Elastomers | OPT+S | $63.73 | 95,443 | $6,082,630 | 0 | -100.0% |
| 2011-08-31 22:49 | 2011-08-08 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; VP Catalysts | Plastic Materials, Synth Resins & Nonvulcan Elastomers | BUY | $53.92 | 2,292 | $123,585 | 20,427 | +12.6% |
| 2010-05-04 00:07 | 2010-04-29 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; VP Catalysts | Plastic Materials, Synth Resins & Nonvulcan Elastomers | SALE | $46.48 | 15,651 | $727,479 | 15,171 | -50.8% |
| 2007-10-31 21:44 | 2007-10-29 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; VP Catalysts | Plastic Materials, Synth Resins & Nonvulcan Elastomers | SALE | $46.51 | 26,626 | $1,238,319 | 133 | -99.5% |
| 2007-02-21 19:50 | 2007-02-20 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; VP Catalysts | Plastic Materials, Synth Resins & Nonvulcan Elastomers | OPT+S | $83.91 | 6,000 | $503,456 | 13,441 | -30.9% |
| 2006-06-13 21:20 | 2006-06-12 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; VP Fine Chemicals | Plastic Materials, Synth Resins & Nonvulcan Elastomers | OPT+S | $45.00 | 12,000 | $540,014 | 8,368 | -58.9% |
| 2005-11-08 00:24 | 2005-11-03 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; VP Fine Chemicals | Plastic Materials, Synth Resins & Nonvulcan Elastomers | OPT+S | $35.93 | 11,400 | $409,602 | 3,147 | -78.4% |
| 2004-11-12 16:49 | 2004-11-09 | ALB | Albemarle Corporation | NICOLS JOHN J | Officer; VP Fine Chemicals | Plastic Materials, Synth Resins & Nonvulcan Elastomers | OPT+S | $36.66 | 21,500 | $788,121 | 2,647 | -89.0% |
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.