OCCIDENTAL PETROLEUM CORP /DE/ — Insider Transactions
Form 4 filings by directors, officers, and 10%+ shareholders
SEC rules require corporate insiders — including directors, executive officers, and any shareholder owning more than 10% of a company's shares — to report changes in their ownership within two business days of a transaction. These disclosures are filed as Form 4. Open-market purchases (code P) are generally considered the most meaningful signal, as insiders are spending their own money.
| Insider | Title | Type | Shares | Price | Value | Owns After | Date |
|---|---|---|---|---|---|---|---|
| KLESSE WILLIAM R | — | Purchase | 5,000 | $38.98 | $194,900 | 218,913 | Dec 16, 2025 |
| Kerrigan Sylvia J | SVP & Chief Legal Officer | Tax Withholding | 5,324 | $44.23 | $235,481 | 148,837 | Oct 2, 2025 |
| Jackson Richard A. | Senior Vice President and COO | Award / Grant | 31,434 | — | — | 298,822 | Oct 1, 2025 |
| GUTIERREZ CARLOS M | — | Gift | 3,723 | — | — | 75,261 | May 9, 2025 |
| BAILEY VICKY A | — | Award / Grant | 6,442 | — | — | 15,089 | May 5, 2025 |
| GOULD ANDREW | — | Tax Withholding | 1,933 | $38.81 | $75,020 | 42,850 | May 5, 2025 |
| KLESSE WILLIAM R | — | Award / Grant | 6,442 | — | — | 215,331 | May 5, 2025 |
| GUTIERREZ CARLOS M | — | Award / Grant | 5,798 | — | — | 71,538 | May 5, 2025 |
| POLADIAN AVEDICK BARUYR | — | Award / Grant | 6,442 | — | — | 90,426 | May 5, 2025 |
| Robinson Kenneth B. | — | Tax Withholding | 1,418 | $38.81 | $55,033 | 11,865 | May 5, 2025 |
| Shearer Bob | — | Award / Grant | 5,798 | — | — | 62,729 | May 5, 2025 |
| MOORE JACK B | — | Award / Grant | 10,436 | — | — | 72,316 | May 5, 2025 |
| ONeill Claire | — | Award / Grant | 5,798 | — | — | 12,473 | May 5, 2025 |
| POLADIAN AVEDICK BARUYR | — | X | 9,327 | $21.30 | $198,665 | 83,984 | Mar 31, 2025 |
| GOULD ANDREW | — | X | 2,351 | $21.30 | $50,076 | 38,341 | Mar 31, 2025 |
| KLESSE WILLIAM R | — | X | 25,900 | $21.30 | $551,670 | 208,889 | Mar 31, 2025 |
| Mathew Sunil | SVP & CFO | X | 4,491 | $21.30 | $95,658 | 212,095 | Mar 31, 2025 |
| Simmons Jeff F | Senior Vice President | Tax Withholding | 10,526 | $48.84 | $514,090 | 291,838 | Mar 1, 2025 |
| Peterson Robert L | Senior Vice President | Tax Withholding | 7,991 | $48.84 | $390,280 | 261,701 | Mar 1, 2025 |
| Mathew Sunil | SVP & CFO | Tax Withholding | 10,567 | $48.84 | $516,092 | 180,576 | Mar 1, 2025 |
| Dillon Kenneth | Senior Vice President | Tax Withholding | 8,826 | $48.84 | $431,062 | 313,016 | Mar 1, 2025 |
| Kerrigan Sylvia J | SVP & Chief Legal Officer | Award / Grant | 53,236 | — | — | 154,161 | Feb 28, 2025 |
| Jackson Richard A. | Senior Vice President | Award / Grant | 30,304 | — | — | 267,388 | Feb 28, 2025 |
| Hollub Vicki A. | President and CEO | Award / Grant | 100,328 | — | — | 1,011,812 | Feb 28, 2025 |
| Champion Christopher O | VP, CAO and Controller | Award / Grant | 14,743 | — | — | 129,924 | Feb 28, 2025 |
| Hollub Vicki A. | President and CEO | Award / Grant | 113,426 | — | — | 938,557 | Feb 12, 2025 |
| Simmons Jeff F | Senior Vice President | Tax Withholding | 16,790 | $47.83 | $803,066 | 302,364 | Feb 12, 2025 |
| Peterson Robert L | Senior Vice President | Tax Withholding | 23,646 | $47.83 | $1,130,988 | 269,692 | Feb 12, 2025 |
| Mathew Sunil | SVP & CFO | Award / Grant | 41,039 | — | — | 207,374 | Feb 12, 2025 |
| Jackson Richard A. | Senior Vice President | Tax Withholding | 23,643 | $47.83 | $1,130,845 | 245,681 | Feb 12, 2025 |
| Dillon Kenneth | Senior Vice President | Tax Withholding | 25,846 | $47.83 | $1,236,214 | 321,842 | Feb 12, 2025 |
| Champion Christopher O | VP, CAO and Controller | Tax Withholding | 12,997 | $47.83 | $621,647 | 119,552 | Feb 12, 2025 |
| BUFFETT WARREN E | — | Purchase | 763,017 | $46.82 | $35,724,456 | 264,941,431 | Feb 7, 2025 |
| BUFFETT WARREN E | — | Purchase | 2,477,362 | $46.25 | $114,577,993 | 257,758,886 | Dec 18, 2024 |
| Kerrigan Sylvia J | SVP & Chief Legal Officer | Tax Withholding | 5,324 | $53.44 | $284,515 | 111,829 | Oct 2, 2024 |
| BERKSHIRE HATHAWAY INC | — | Purchase | 1,060,653 | $59.59 | $63,204,312 | 254,947,063 | Jun 13, 2024 |
| BUFFETT WARREN E | — | Purchase | 399,859 | $60.43 | $24,163,479 | 251,568,014 | Jun 10, 2024 |
| BERKSHIRE HATHAWAY INC | — | Purchase | 1,386,844 | $59.67 | $82,752,981 | 250,583,605 | Jun 5, 2024 |
| GUTIERREZ CARLOS M | — | X | 7,207 | $22.00 | $158,554 | 65,740 | May 20, 2024 |
| BAILEY VICKY A | — | Award / Grant | 3,495 | — | — | 9,792 | May 3, 2024 |
| Robinson Kenneth B. | — | Award / Grant | 3,495 | — | — | 7,486 | May 3, 2024 |
| ONeill Claire | — | Award / Grant | 3,495 | — | — | 6,626 | May 3, 2024 |
| Shearer Bob | — | Award / Grant | 3,883 | — | — | 56,931 | May 3, 2024 |
| MOORE JACK B | — | Tax Withholding | 1,470 | $64.39 | $94,653 | 61,052 | May 3, 2024 |
| GUTIERREZ CARLOS M | — | Award / Grant | 3,495 | — | — | 58,533 | May 3, 2024 |
| POLADIAN AVEDICK BARUYR | — | Award / Grant | 3,883 | — | — | 74,657 | May 3, 2024 |
| GOULD ANDREW | — | Tax Withholding | 1,165 | $64.39 | $75,014 | 35,990 | May 3, 2024 |
| KLESSE WILLIAM R | — | Tax Withholding | 855 | $64.39 | $55,053 | 182,989 | May 3, 2024 |
| GUTIERREZ CARLOS M | — | X | 625 | $22.00 | $13,750 | 55,038 | Mar 19, 2024 |
| Simmons Jeff F | Senior Vice President | Tax Withholding | 11,036 | $60.26 | $665,029 | 259,786 | Mar 1, 2024 |