William R. Klesse, a director at Occidental Petroleum Corp. ($OXY), made one open-market purchase of company shares worth $194,900 in the last year. His most recent buy occurred on December 16, 2025. This purchase ranks 1,619th among 4,983 individual insiders, below the average of $1.46 million per buyer and 3.3 transactions. Klesse reported no open-market sales.
| Transaction Date | Company | Ticker | Insider Name | Title | Transaction Type | Security | Shares | Price | Shares Owned Following | Total Shares Outstanding | % of Owned | % of Outstanding |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Dec. 16, 2025 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | P | Common Stock | 5000 | $38.98 | 218,913.0000 | 1,003,100,000 | 2.34% | 0.00% |
| May 5, 2025 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | F | Common Stock | 1418 | $38.81 | 213,913.0000 | 967,100,000 | 0.66% | 0.00% |
| May 5, 2025 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | A | Common Stock | 6442 | $0.00 | 215,331.0000 | 967,100,000 | 3.08% | 0.00% |
| March 31, 2025 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | X | Warrants (Right to buy) | 25900 | $0.00 | 3,860.0000 | 967,100,000 | 87.03% | 0.00% |
| March 31, 2025 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | X | Common Stock | 25900 | $21.30 | 208,889.0000 | 967,100,000 | 14.15% | 0.00% |
| May 3, 2024 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | A | Common Stock | 3883 | $0.00 | 183,844.0000 | 960,900,000 | 2.16% | 0.00% |
| May 3, 2024 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | F | Common Stock | 855 | $64.39 | 182,989.0000 | 960,900,000 | 0.47% | 0.00% |
| May 8, 2023 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | A | Common Stock | 3817 | $0.00 | 180,801.0000 | 1,002,000,000 | 2.16% | 0.00% |
| May 8, 2023 | OCCIDENTAL PETROLEUM CORP /DE/ | $OXY | KLESSE WILLIAM R | Director | F | Common Stock | 840 | $58.96 | 179,961.0000 | 1,002,000,000 | 0.46% | 0.00% |