OXY · Insider Trading
Occidental Petroleum Corporation
Every open-market purchase and sale reported by OXY officers, directors and 10%+ beneficial owners on SEC Form 4, which must be filed within two business days of the transaction. Sales often reflect scheduled 10b5-1 plans or tax withholding rather than a directional view, so read counts alongside the size and the filer.
| Filed | Insider | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-10-02 | Richard A. Jackson | President and CEO | F | −4,124 | −$228.14K |
| 2026-09-29 | Vicki A. Hollub | Director | G | −90,000 | — |
| 2026-08-04 | Brad Pollack | SVP & General Counsel | A | +26,284 | — |
| 2026-06-24 | Richard A. Jackson | President and CEO | Buy | +4,770 | +$249.85K |
| 2025-02-11 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +763,017 | +$35.72M |
| 2024-12-19 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +8,896,890 | +$409.15M |
| 2024-06-17 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +2,947,611 | +$175.98M |
| 2024-06-12 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +1,750,308 | +$105.55M |
| 2024-06-07 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +2,565,477 | +$153.29M |
| 2024-02-05 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +4,302,324 | +$245.88M |
| 2023-12-21 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +5,182,615 | +$312.09M |
| 2023-12-13 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +10,482,162 | +$588.67M |
| 2023-10-25 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +3,921,835 | +$246.41M |
| 2023-06-28 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +2,138,250 | +$122.10M |
| 2023-05-30 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +4,660,809 | +$273.00M |
| 2023-05-18 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +3,457,222 | +$201.42M |
| 2023-05-15 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +2,165,792 | +$125.75M |
| 2023-03-27 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +3,666,714 | +$216.24M |
| 2023-03-15 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +7,886,964 | +$466.68M |
| 2023-03-07 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +5,801,791 | +$354.51M |
| 2022-09-28 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +5,985,190 | +$352.49M |
| 2022-08-08 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +6,681,669 | +$390.72M |
| 2022-07-18 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +1,942,900 | +$112.11M |
| 2022-07-13 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +4,304,146 | +$249.84M |
| 2022-07-07 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +12,042,470 | +$697.78M |
| 2022-07-01 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +9,887,040 | +$582.45M |
| 2022-06-27 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +794,389 | +$44.00M |
| 2022-06-22 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +9,551,454 | +$528.79M |
| 2022-05-12 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +901,774 | +$51.69M |
| 2022-05-04 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +5,887,618 | +$336.22M |
| 2022-03-16 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +18,102,616 | +$984.96M |
| 2022-03-11 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +27,107,389 | +$1.53B |
| 2022-03-04 | BERKSHIRE HATHAWAY INC | 10%+ Owner | Buy | +61,351,818 | +$3.12B |
| 2020-08-03 | Stephen I Chazen | Director | D | −59,018 | — |
| 2020-06-09 | Oscar K Brown | Former Senior Vice President | Sell | −63,905 | −$1.29M |
| 2020-06-03 | Stephen I Chazen | Director | A | +18,248 | — |
| 2020-06-03 | Andrew Gould | Director | A | +12,672 | — |
| 2020-06-03 | Nick Graziano | Director | A | +11,405 | — |
| 2020-06-03 | Carlos M Gutierrez | Director | A | +12,672 | — |
| 2020-06-03 | William R Klesse | Director | MIXED | +8,895 | −$34.66K |
| 2020-06-03 | Andrew Langham | Director | A | +11,405 | — |
| 2020-06-03 | Jack B Moore | Director | MIXED | +11,861 | −$46.21K |
| 2020-06-03 | Hernandez Margarita Palau | Director | A | +11,405 | — |
| 2020-06-03 | Avedick Baruyr Poladian | Director | A | +13,940 | — |
| 2020-06-03 | Bob Shearer | Director | A | +12,672 | — |
| 2020-05-11 | Oscar K Brown | Former Senior Vice President | Sell | −30,000 | −$445.50K |
| 2020-03-30 | Nick Graziano | Director | A | +2,485 | — |
| 2020-03-30 | Andrew Langham | Director | A | +2,485 | — |
| 2020-03-30 | Hernandez Margarita Palau | Director | A | +2,485 | — |
| 2020-03-26 | Kenneth Dillon | Senior Vice President | Buy | +10,000 | +$134.20K |
| Insider | Role | Shares Held | Value |
|---|---|---|---|
| BERKSHIRE HATHAWAY INC | 10%+ Owner | 264,941,431 | $16.53B |
| Vicki A. Hollub | President and CEO | 995,324 | $62.09M |
| Richard A. Jackson | President and CEO | 450,071 | $28.08M |
| Brad Pollack | SVP & General Counsel | 45,085 | $2.81M |
Form 4 reports a change in beneficial ownership by an officer, director or 10%+ holder, and must be filed within two business days of the transaction — so this is close to real time, unlike the 45-day-lagged 13F institutional data.
Transaction codes matter more than the raw buy/sell count. Code P is an open-market purchase — an insider choosing to buy with their own money, which is the signal most research treats as informative. Code S is a sale, but sales are frequently pre-scheduled under a 10b5-1 plan or cover tax withholding on vesting equity, so a run of sales often says nothing directional. Codes A and M are grants and option exercises rather than open-market decisions.
Full filing history and per-insider positions are on the OXY quote page; the site-wide leaderboard is on the insider transactions hub.
Market data may be delayed, incomplete, or inaccurate. Not a recommendation to buy, sell, or hold any security. Verify quotes with your broker before trading. See Terms §17.