William R Klesse insider trades: Occidental Petroleum (OXY) stock buys and sales
Trades on the price chart
Daily close, with an arrow on each day they bought or sold
Companies
Where William reports to the SEC
Open-market buys and sales
39 trades reported on SEC Form 4, newest first
| Date | Stock | Type | Shares | Price | Value | Holding | Reported |
|---|---|---|---|---|---|---|---|
| Dec 16, 2025 | OXY | ↑ Buy | 5,000 | $38.98 | $195K | Direct | Dec 17, 2025 (1d) |
| Aug 25, 2020 | OXY | ↑ Buy | 10,000 | $13.43 | $134K | Direct | Aug 26, 2020 (1d) |
| Mar 13, 2020 | OXY | ↑ Buy | 20,000 | $11.81 | $236K | Direct | Mar 16, 2020 (3d) |
| Dec 6, 2019 | OXY | ↑ Buy | 10,000 | $38.82 | $388K | Direct | Dec 9, 2019 (3d) |
| Nov 19, 2019 | OXY | ↑ Buy | 6,000 | $38.09 | $229K | Direct | Nov 20, 2019 (1d) |
| Nov 8, 2019 | OXY | ↑ Buy | 12,000 | $39.31 | $472K | Direct | Nov 12, 2019 (4d) |
| Sep 27, 2019 | OXY | ↑ Buy | 5,000 | $45.54 | $228K | Direct | Sep 30, 2019 (3d) |
| Aug 12, 2019 | OXY | ↑ Buy | 5,000 | $44.96 | $225K | Direct | Aug 13, 2019 (1d) |
| Jun 10, 2019 | OXY | ↑ Buy | 10,000 | $48.22 | $482K | Direct | Jun 11, 2019 (1d) |
| Aug 13, 2018 | OXY | ↑ Buy | 5,000 | $78.55 | $393K | Direct | Aug 14, 2018 (1d) |
| Aug 9, 2017 | OXY | ↑ Buy | 10,000 | $61.58 | $616K | Direct | Aug 10, 2017 (1d) |
| Dec 23, 2016 | OXY | ↑ Buy | 10,000 | $72.15 | $722K | Direct | Dec 27, 2016 (4d) |
| Nov 14, 2016 | OXY | ↑ Buy | 10,000 | $64.89 | $649K | Direct | Nov 15, 2016 (1d) |
| Aug 5, 2015 | OXY | ↑ Buy | 10,000 | $69.48 | $695K | Direct | Aug 6, 2015 (1d) |
| Nov 14, 2014 | VLO | ↓ Sell | 37,943 | $49.94 | $1.9M | Direct | Nov 17, 2014 (3d) |
| Nov 12, 2014 | VLO | ↓ Sell | 20,000 | $51.33 | $1.0M | Direct | Nov 13, 2014 (1d) |
| Aug 18, 2014 | VLO | ↓ Sell | 57,893 | $53.22 | $3.1M | Direct | Aug 19, 2014 (1d) |
| May 20, 2014 | OXY | ↑ Buy | 5,000 | $95.50 | $477K | Direct | May 21, 2014 (1d) |
| May 8, 2014 | VLO | ↓ Sell | 45,182 | $56.80 | $2.6M | Direct | May 9, 2014 (1d) |
| Mar 25, 2014 | OXY | ↑ Buy | 5,000 | $94.70 | $474K | Direct | Mar 26, 2014 (1d) |
| Mar 19, 2014 | VLO | ↓ Sell | 51,659 | $54.57 | $2.8M | Direct | Mar 20, 2014 (1d) |
| Mar 18, 2014 | VLO | ↓ Sell | 80,000 | $54.69 | $4.4M | Direct | Mar 19, 2014 (1d) |
| Mar 10, 2014 | VLO | ↓ Sell | 133,926 | $52.72 | $7.1M | Direct | Mar 10, 2014 (0d) |
| Mar 28, 2013 | VLO | ↓ Sell | 50,000 | $45.49 | $2.3M | Direct | Apr 1, 2013 (4d) |
| Mar 4, 2013 | VLO | ↓ Sell | 46,175 | $48.29 | $2.2M | Direct | Mar 5, 2013 (1d) |
| Feb 19, 2013 | VLO | ↓ Sell | 100,000 | $47.17 | $4.7M | Direct | Feb 20, 2013 (1d) |
| Feb 12, 2013 | VLO | ↓ Sell | 100,000 | $45.47 | $4.5M | Direct | Feb 13, 2013 (1d) |
| Jan 30, 2013 | VLO | ↓ Sell | 68,000 | $42.90 | $2.9M | Direct | Jan 31, 2013 (1d) |
| Dec 17, 2012 | VLO | ↓ Sell | 108,000 | $33.46 | $3.6M | Direct | Dec 18, 2012 (1d) |
| Dec 22, 2010 | VLO | ↓ Sell | 53,640 | $22.28 | $1.2M | Direct | Dec 22, 2010 (0d) |
| Dec 15, 2010 | VLO | ↓ Sell | 90,984 | $21.31 | $1.9M | Direct | Dec 16, 2010 (1d) |
| Dec 9, 2010 | VLO | ↓ Sell | 102,392 | $20.99 | $2.1M | Direct | Dec 10, 2010 (1d) |
| Dec 15, 2009 | VLO | ↓ Sell | 100,000 | $16.73 | $1.7M | Direct | Dec 17, 2009 (2d) |
| Dec 3, 2009 | VLO | ↓ Sell | 100,000 | $16.06 | $1.6M | Direct | Dec 4, 2009 (1d) |
| Dec 1, 2009 | VLO | ↓ Sell | 100,000 | $16.06 | $1.6M | Direct | Dec 2, 2009 (1d) |
| Mar 10, 2008 | VLO | ↓ Sell | 100,000 | $52.32 | $5.2M | Direct | Mar 12, 2008 (2d) |
| Jun 6, 2007 | VLO | ↓ Sell | 104,560 | $74.04 | $7.7M | Direct | Jun 7, 2007 (1d) |
| May 14, 2007 | VLO | ↓ Sell | 141,328 | $73.59 | $10.4M | Direct | May 16, 2007 (2d) |
| Jul 27, 2005 | VLO | ↓ Sell | 75,000 | $82.72 | $6.2M | Direct | Jul 29, 2005 (2d) |
Each row is one filing's trades in one stock, summed. Shares and prices are as filed, before any later stock split.
Other OXY insiders
Open-market trades in the last 12 months
About William R Klesse's insider trades
William R Klesse is a director at Occidental Petroleum (OXY). Since Jul 27, 2005, William has reported 16 open-market purchases worth $6.6M and 23 sales worth $82.9M on SEC Form 4. In the last 12 months: 1 buy ($195K).
Their filings also include shares withheld for taxes (45 filings), option exercises (26 filings), grants and awards (25 filings), gifts (6 filings). These aren't open-market trades and aren't counted above.
How to read insider trades
Officers, directors and owners of more than 10% of a company must report trades in its stock on SEC Form 4, usually within two business days. Purchases with their own money are the stronger signal: insiders sell for many reasons (taxes, diversification, a house), but buy for one. See every OXY insider trade, the latest insider trades across the market, or cluster buys, when several insiders buy the same stock within days.