SEC Form 4 · Updated Daily
OXY
— OCCIDENTAL PETROLEUM CORPORATION OwnershipInsider and institutional ownership derived from SEC Form 4 filings. Click any owner to see their holdings across every company they’ve filed on, and how their position has changed over time.
Current Reporting Owners
| Owner | Role | Shares Owned | As Of | Last Activity |
|---|---|---|---|---|
| BERKSHIRE HATHAWAY INC | 10%+ Owner | 264,941,431 | 2025-02-07 | P |
| BUFFETT WARREN E | 10%+ Owner | 264,941,431 | 2025-02-07 | P |
| ICAHN PARTNERS LP | 10%+ Owner | 77,127,271 | 2021-04-05 | S |
| ICAHN PARTNERS MASTER FUND LP | 10%+ Owner | 77,127,271 | 2021-04-05 | S |
| ICAHN CARL C | 10%+ Owner | 77,127,271 | 2021-04-05 | S |
| IRANI RAY R | Director | 7,696,867 | 2012-02-27 | G |
| Hollub Vicki A. | Director | 974,835 | 2026-09-25 | G |
| DE BRIER DONALD P | Officer | 697,135 | 2013-10-12 | A |
| Jackson Richard A. | Director · Officer | 439,974 | 2026-09-30 | F |
| MORGAN JOHN W | Officer | 433,824 | 2008-02-21 | F |
| Dillon Kenneth | Officer | 372,201 | 2026-03-01 | A |
| HALLOCK RICHARD W | Officer | 357,537 | 2008-02-21 | F |
| Simmons Jeff F | Officer | 332,726 | 2026-03-01 | A |
| Peterson Robert L | Officer | 313,199 | 2026-03-01 | A |
| CHAZEN STEPHEN I | Director | 294,957 | 2022-05-09 | A |
| Mathew Sunil | Officer | 228,739 | 2026-03-01 | A |
| KLESSE WILLIAM R | Director | 223,062 | 2026-05-04 | A |
| Lowe Edward A. | Officer | 202,349 | 2020-02-28 | F |
| Kerrigan Sylvia J | Officer | 179,516 | 2026-03-01 | A |
| LIENERT JAMES M | Officer | 153,234 | 2013-10-12 | A |
| Backus Marcia E. | Officer | 150,792 | 2022-02-28 | F |
| Bennett Peter J. | Officer | 146,156 | 2024-03-01 | A |
| Champion Christopher O | Officer | 144,004 | 2026-03-01 | A |
| BURGHER CEDRIC W. | Officer | 118,864 | 2020-02-28 | F |
| Vangolen Glenn M. | Officer | 110,140 | 2020-02-28 | F |
| OLSON R CASEY | Officer | 106,998 | 2009-02-05 | A |
| HAVERT JAMES R | Officer | 86,284 | 2008-07-22 | F |
| GUTIERREZ CARLOS M | Director | 82,651 | 2026-05-04 | A |
| SEGOVIA RODOLFO | Director | 82,232 | 2011-05-19 | F |
| SYRIANI AZIZ D | Director | 79,800 | 2012-05-07 | A |
| POLADIAN AVEDICK BARUYR | Director | 79,575 | 2026-05-04 | A |
| MOORE JACK B | Director | 77,910 | 2026-05-04 | A |
| Stavros Christopher G | Officer | 73,405 | 2017-02-28 | F |
| TOMICH ROSEMARY | Director | 67,938 | 2012-05-07 | A |
| Shearer Bob | Director | 66,463 | 2026-05-04 | A |
| CHALSTY JOHN S | Director | 61,406 | 2010-05-10 | A |
| Elliott Joseph C. | Officer | 60,435 | 2018-07-11 | A |
| MALONEY IRVIN W | Director | 55,713 | 2010-05-10 | A |
| BURKLE RONALD W | 10%+ Owner | 54,000 | 2009-05-04 | A |
| Ackerman Neil R | Officer | 52,061 | 2023-05-05 | — |
| FORAN MARGARET M | Director | 50,828 | 2019-08-14 | P |
| Abraham Spencer | Director | 50,495 | 2019-05-13 | A |
| Albrecht William E | Director | 49,909 | 2014-07-09 | A |
| Hebert Burnis J. | Officer | 48,068 | 2020-05-29 | — |
| GOULD ANDREW | Director | 47,828 | 2026-05-04 | A |
| Brown Oscar K | Director | 46,839 | 2020-06-05 | S |
| FEICK JOHN E | Director | 46,503 | 2018-05-07 | A |
| Batchelder Eugene L. | Director | 45,148 | 2019-06-10 | P |
| POLLACK BRAD | Officer | 42,660 | 2026-08-01 | A |
| DREIER R CHAD | Director | 40,666 | 2007-05-07 | A |
| WEISMAN WALTER L | Director | 39,544 | 2012-03-20 | G |
| Palmer Robert | Officer | 33,511 | 2020-02-28 | F |
| Kirk Jennifer M | Director | 32,139 | 2019-07-12 | F |
| DJEREJIAN EDWARD P | Director | 31,744 | 2014-12-17 | S |
| Anderson B Chuck | Officer | 28,922 | 2013-09-19 | S |
| Atkins Howard I | Director · Officer | 28,073 | 2019-05-10 | F |
| Walter Elisse B. | Director | 24,842 | 2020-03-04 | P |
| Pineci Roy | Officer | 22,295 | 2014-07-09 | A |
| Walker Cynthia Lynn | Director | 21,866 | 2016-02-17 | A |
| Palau Hernandez Margarita | Director | 21,434 | 2021-05-10 | A |
| LANGHAM ANDREW | Director | 21,401 | 2021-05-10 | A |
| Leonard Jim A | Officer | 21,090 | 2008-07-22 | F |
| Chiang Willie CW | Director | 19,399 | 2012-12-13 | F |
| BAILEY VICKY A | Director | 16,713 | 2026-05-04 | A |
| Robinson Kenneth B. | Director | 16,272 | 2026-05-04 | A |
| ONeill Claire | Director | 16,265 | 2026-05-04 | A |
| Ale John C. | Director | 14,915 | 2013-04-18 | F |
| Graziano Nick | Director | 13,890 | 2020-06-01 | A |
| Cozyn Martin | Officer | 10,684 | 2008-04-01 | A |
| Hu Gaoxiang | Director | 9,562 | 2021-05-10 | A |
Recent Filings
| Date | Owner | Activity | Shares | Price | Owned After |
|---|---|---|---|---|---|
| 2026-09-30 | Jackson Richard A. | Tax withholding | 4,124 | $55.32 | 439,974 |
| 2026-09-25 | Hollub Vicki A. | Gift | 90,000 | $0.00 | 974,835 |
| 2026-08-01 | POLLACK BRAD | — | — | — | 2,425 |
| 2026-08-01 | POLLACK BRAD | — | — | — | 16,376 |
| 2026-08-01 | POLLACK BRAD | Grant / award | 26,284 | $0.00 | 42,660 |
| 2026-06-23 | Jackson Richard A. | Open-market buy | 4,770 | $52.38 | 444,098 |
| 2026-06-01 | Hollub Vicki A. | Tax withholding | 73,477 | $58.92 | 1,037,826 |
| 2026-06-01 | Hollub Vicki A. | Tax withholding | 701 | $58.92 | 1,111,303 |
| 2026-06-01 | Hollub Vicki A. | Grant / award | 3,183 | $0.00 | 1,112,004 |
| 2026-06-01 | Jackson Richard A. | Grant / award | 101,833 | $0.00 | 439,328 |
| 2026-05-04 | ONeill Claire | Grant / award | 3,734 | $0.00 | 16,265 |
| 2026-05-04 | Shearer Bob | Grant / award | 3,734 | $0.00 | 66,463 |
| 2026-05-04 | POLADIAN AVEDICK BARUYR | Grant / award | 4,149 | $0.00 | 79,575 |
| 2026-05-04 | KLESSE WILLIAM R | Tax withholding | 913 | $60.27 | 222,149 |
| 2026-05-04 | KLESSE WILLIAM R | Grant / award | 4,149 | $0.00 | 223,062 |
| 2026-05-04 | GUTIERREZ CARLOS M | Grant / award | 3,734 | $0.00 | 82,651 |
| 2026-05-04 | GOULD ANDREW | Tax withholding | 1,494 | $60.27 | 46,334 |
| 2026-05-04 | GOULD ANDREW | Grant / award | 4,978 | $0.00 | 47,828 |
| 2026-05-04 | Robinson Kenneth B. | Tax withholding | 913 | $60.27 | 15,359 |
| 2026-05-04 | Robinson Kenneth B. | Grant / award | 4,149 | $0.00 | 16,272 |
| 2026-05-04 | BAILEY VICKY A | Tax withholding | 1,223 | $60.27 | 15,490 |
| 2026-05-04 | BAILEY VICKY A | Grant / award | 3,734 | $0.00 | 16,713 |
| 2026-05-04 | MOORE JACK B | Tax withholding | 1,479 | $60.27 | 76,431 |
| 2026-05-04 | MOORE JACK B | Grant / award | 6,720 | $0.00 | 77,910 |
| 2026-04-14 | POLADIAN AVEDICK BARUYR | Gift | 5,000 | $0.00 | 75,426 |
| 2026-04-14 | POLADIAN AVEDICK BARUYR | Gift | 5,000 | $0.00 | 80,426 |
| 2026-04-14 | POLADIAN AVEDICK BARUYR | Gift | 5,000 | $0.00 | 5,000 |
| 2026-04-14 | POLADIAN AVEDICK BARUYR | Gift | 5,000 | $0.00 | 85,426 |
| 2026-03-01 | Champion Christopher O | Grant / award | 13,565 | $0.00 | 144,004 |
| 2026-03-01 | Dillon Kenneth | Grant / award | 27,883 | $0.00 | 372,201 |
| 2026-03-01 | Hollub Vicki A. | Grant / award | 94,198 | $0.00 | 1,108,806 |
| 2026-03-01 | Jackson Richard A. | Grant / award | 37,679 | $0.00 | 337,495 |
| 2026-03-01 | Kerrigan Sylvia J | Grant / award | 48,983 | $0.00 | 179,516 |
| 2026-03-01 | Simmons Jeff F | Grant / award | 24,115 | $0.00 | 332,726 |
| 2026-03-01 | Mathew Sunil | Grant / award | 26,376 | $0.00 | 228,739 |
| 2026-03-01 | Peterson Robert L | Grant / award | 24,115 | $0.00 | 313,199 |
| 2026-02-28 | Champion Christopher O | Tax withholding | 4,970 | $53.08 | 130,439 |
| 2026-02-28 | Dillon Kenneth | Tax withholding | 10,131 | $53.08 | 344,318 |
| 2026-02-28 | Hollub Vicki A. | Tax withholding | 33,136 | $53.08 | 1,014,608 |
| 2026-02-28 | Jackson Richard A. | Tax withholding | 10,131 | $53.08 | 299,816 |
Source: SEC EDGAR Form 4 filings. For informational purposes only — not investment advice.