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, % |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2025-12-18 01:00 | 2025-12-16 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $38.98 | 5,000 | $194,900 | 218,913 | +2.3% |
| 2020-08-27 01:15 | 2020-08-25 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $13.43 | 10,000 | $134,300 | 168,092 | +6.3% |
| 2020-03-17 00:54 | 2020-03-13 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $11.81 | 20,000 | $236,200 | 149,203 | +15.5% |
| 2019-12-10 02:10 | 2019-12-06 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $38.82 | 10,000 | $388,200 | 129,203 | +8.4% |
| 2019-11-21 01:24 | 2019-11-19 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $38.09 | 6,000 | $228,540 | 119,203 | +5.3% |
| 2019-11-13 01:49 | 2019-11-08 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $39.31 | 12,000 | $471,720 | 113,203 | +11.9% |
| 2019-10-01 01:29 | 2019-09-27 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $45.54 | 5,000 | $227,700 | 101,203 | +5.2% |
| 2019-08-14 00:12 | 2019-08-12 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $44.96 | 5,000 | $224,800 | 96,203 | +5.5% |
| 2019-06-12 02:03 | 2019-06-10 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $48.22 | 10,000 | $482,200 | 91,203 | +12.3% |
| 2018-08-15 01:14 | 2018-08-13 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $78.55 | 5,000 | $392,750 | 77,963 | +6.9% |
| 2017-08-10 23:46 | 2017-08-09 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $61.58 | 10,000 | $615,800 | 70,692 | +16.5% |
| 2016-12-27 20:52 | 2016-12-23 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $72.15 | 10,000 | $721,500 | 57,940 | +20.9% |
| 2016-11-16 01:52 | 2016-11-14 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $64.89 | 10,000 | $648,900 | 47,940 | +26.4% |
| 2015-08-06 18:04 | 2015-08-05 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $69.48 | 10,000 | $694,800 | 35,729 | +38.9% |
| 2014-11-18 00:05 | 2014-11-13 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director | Petroleum Refining | SALE | $49.94 | 37,943 | $1,894,817 | 901,761 | -4.0% |
| 2014-11-14 00:05 | 2014-11-12 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director | Petroleum Refining | SALE | $51.33 | 20,000 | $1,026,618 | 1,043,400 | -1.9% |
| 2014-08-19 23:02 | 2014-08-15 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director | Petroleum Refining | SALE | $53.22 | 57,893 | $3,081,112 | 1,063,400 | -5.2% |
| 2014-03-26 21:55 | 2014-03-25 | OXY | OCCIDENTAL PETROLEUM CORP /DE/ | KLESSE WILLIAM R | Director | Crude Petroleum & Natural Gas | BUY | $94.70 | 5,000 | $473,520 | 16,838 | +42.2% |
| 2014-03-20 23:15 | 2014-03-19 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB and CEO | Petroleum Refining | SALE | $54.57 | 51,659 | $2,819,047 | 1,166,475 | -4.2% |
| 2014-03-19 23:20 | 2014-03-17 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB and CEO | Petroleum Refining | OPT+S | $54.69 | 80,000 | $4,374,976 | 1,218,134 | -6.2% |
| 2014-03-11 01:09 | 2014-03-06 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB and CEO | Petroleum Refining | OPT+S | $52.72 | 133,926 | $7,060,498 | 1,218,134 | -9.9% |
| 2013-04-01 23:12 | 2013-03-28 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB & CEO | Petroleum Refining | OPT+S | $45.49 | 50,000 | $2,274,365 | 1,017,804 | -4.7% |
| 2013-03-06 00:06 | 2013-03-04 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB & CEO | Petroleum Refining | OPT+S | $48.29 | 46,175 | $2,229,985 | 1,017,804 | -4.3% |
| 2013-02-21 00:26 | 2013-02-19 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB & CEO | Petroleum Refining | OPT+S | $47.17 | 100,000 | $4,717,460 | 1,017,804 | -8.9% |
| 2013-02-14 00:27 | 2013-02-12 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB & CEO | Petroleum Refining | OPT+S | $45.47 | 100,000 | $4,546,740 | 1,017,804 | -8.9% |
| 2013-02-01 00:15 | 2013-01-30 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB & CEO | Petroleum Refining | OPT+S | $42.90 | 68,000 | $2,916,860 | 1,017,804 | -6.3% |
| 2012-12-19 00:06 | 2012-12-14 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB, CEO & President | Petroleum Refining | OPT+S | $33.46 | 108,000 | $3,613,918 | 877,486 | -11.0% |
| 2010-12-23 00:09 | 2010-12-20 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB, CEO & President | Petroleum Refining | OPT+S | $22.28 | 53,640 | $1,195,308 | 803,083 | -6.3% |
| 2010-12-17 00:17 | 2010-12-14 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB, CEO & President | Petroleum Refining | OPT+S | $21.31 | 90,984 | $1,938,742 | 803,083 | -10.2% |
| 2010-12-11 00:05 | 2010-12-09 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB, CEO & President | Petroleum Refining | OPT+S | $20.99 | 102,392 | $2,149,136 | 803,083 | -11.3% |
| 2009-12-18 00:08 | 2009-12-15 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB, CEO & President | Petroleum Refining | SALE | $16.73 | 100,000 | $1,673,240 | 834,276 | -10.7% |
| 2009-12-04 23:27 | 2009-12-03 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB, CEO & President | Petroleum Refining | OPT+S | $16.06 | 100,000 | $1,605,600 | 934,276 | -9.7% |
| 2009-12-03 00:06 | 2009-12-01 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB, CEO & President | Petroleum Refining | OPT+S | $16.06 | 100,000 | $1,605,600 | 934,276 | -9.7% |
| 2008-03-12 23:13 | 2008-03-10 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB and CEO | Petroleum Refining | OPT+S | $52.32 | 100,000 | $5,232,190 | 593,579 | -14.4% |
| 2007-06-07 23:16 | 2007-06-06 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB and CEO | Petroleum Refining | OPT+S | $74.04 | 104,560 | $7,741,622 | 560,786 | -15.7% |
| 2007-05-17 00:20 | 2007-05-14 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Director, Officer; COB and CEO | Petroleum Refining | OPT+S | $73.59 | 141,328 | $10,400,455 | 580,786 | -19.6% |
| 2005-07-29 23:11 | 2005-07-27 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Officer; EVP and COO | Petroleum Refining | OPT+S | $82.72 | 75,000 | $6,204,000 | 239,514 | -23.8% |
| 2005-03-01 01:50 | 2005-02-25 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Officer; EVP and COO | Petroleum Refining | SALE | $72.10 | 13,400 | $966,153 | 239,514 | -5.3% |
| 2005-03-01 01:44 | 2005-02-25 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Officer; EVP and COO | Petroleum Refining | SALE | $72.19 | 86,600 | $6,251,360 | 252,914 | -25.5% |
| 2004-08-04 23:02 | 2004-08-03 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Officer; EVP and COO | Petroleum Refining | OPT+S | $75.12 | 8,175 | $614,087 | 145,783 | -5.3% |
| 2004-03-18 23:41 | 2004-03-17 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Officer; EVP and COO | Petroleum Refining | OPT+S | $56.66 | 13,406 | $759,568 | 123,097 | -9.8% |
| 2004-02-28 00:41 | 2004-02-26 | VLO | VALERO ENERGY CORP/TX | KLESSE WILLIAM R | Officer; EVP and COO | Petroleum Refining | OPT+S | $58.70 | 20,000 | $1,174,000 | 113,577 | -15.0% |
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.