Based on data from the past 90 days ending February 06, 2026, Occidental Petroleum's three largest insider shareholders are TenPercentOwner Hathaway Inc Berkshire (264.94Mn shares), TenPercentOwner Carl C Icahn (73.63Mn shares), President And Ceo Vicki A. Hollub (1.01Mn shares).
| Holder | Position | Shares | Report Date |
|---|---|---|---|
| Hathaway Inc Berkshire | 264,941,431 | 11 Feb, 2025 | |
| Carl C Icahn | 73,627,271 | 07 Apr, 2021 | |
| Vicki A. Hollub | President And Ceo | 1,011,812 | 04 Mar, 2025 |
| Kenneth Dillon | Senior Vice President | 343,320 | 04 Mar, 2025 |
| Jeff F Simmons | Senior Vice President | 318,047 | 04 Mar, 2025 |
| Richard A. Jackson | Senior Vice President And Coo | 298,822 | 03 Oct, 2025 |
| Stephen I Chazen | 293,777 | 11 May, 2022 | |
| Robert L Peterson | Senior Vice President | 287,910 | 04 Mar, 2025 |
| William R Klesse | 218,913 | 17 Dec, 2025 | |
| Sunil Mathew | Svp & Cfo | 212,095 | 02 Apr, 2025 |
| Marcia E. Backus | Svp And Gc & Cco | 150,792 | 02 Mar, 2022 |
| Sylvia J Kerrigan | Svp & Chief Legal Officer | 148,837 | 03 Oct, 2025 |
| Peter J. Bennett | Vice President | 146,156 | 01 Mar, 2024 |
| Christopher O Champion | Vp And Cao And Controller | 129,924 | 04 Mar, 2025 |
| Avedick Baruyr Poladian | 90,426 | 07 May, 2025 | |
| Carlos M Gutierrez | 75,261 | 09 May, 2025 | |
| Jack B Moore | 70,020 | 07 May, 2025 | |
| Bob Shearer | 62,729 | 07 May, 2025 | |
| Andrew Gould | 42,850 | 07 May, 2025 | |
| Hernandez Margarita Palau | 21,434 | 12 May, 2021 | |
| Andrew Langham | 21,401 | 12 May, 2021 | |
| Vicky A Bailey | 12,979 | 07 May, 2025 | |
| Claire Oneill | 12,473 | 07 May, 2025 | |
| Kenneth B. Robinson | 11,865 | 07 May, 2025 | |
| Gaoxiang Hu | 9,562 | 12 May, 2021 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 16 Dec, 2025 | William R Klesse | Common Stock | A | 5,000 | $38.98 | 218,913 | D | P |
| 02 Oct, 2025 | Sylvia J Kerrigan | Common Stock | D | 5,324 | $44.23 | 148,837 | D | F |
| 01 Oct, 2025 | Richard A. Jackson | Common Stock | A | 31,434 | $0.00 | 298,822 | D | A |
| 09 May, 2025 | Carlos M Gutierrez | Common Stock | A | 3,723 | $0.00 | 75,261 | D | G |
| 05 May, 2025 | William R Klesse | Common Stock | D | 1,418 | $38.81 | 213,913 | D | F |
| 05 May, 2025 | William R Klesse | Common Stock | A | 6,442 | $0.00 | 215,331 | D | A |
| 05 May, 2025 | Carlos M Gutierrez | Common Stock | A | 5,798 | $0.00 | 71,538 | D | A |
| 05 May, 2025 | Andrew Gould | Common Stock | A | 6,442 | $0.00 | 44,783 | D | A |
| 05 May, 2025 | Andrew Gould | Common Stock | D | 1,933 | $38.81 | 42,850 | D | F |
| 05 May, 2025 | Jack B Moore | Common Stock | D | 2,296 | $38.81 | 70,020 | D | F |
| 05 May, 2025 | Jack B Moore | Common Stock | A | 10,436 | $0.00 | 72,316 | D | A |
| 05 May, 2025 | Jack B Moore | - | - | 70,020 | D | |||
| 05 May, 2025 | Jack B Moore | - | - | 72,316 | D | |||
| 05 May, 2025 | Vicky A Bailey | Common Stock | D | 2,110 | $38.81 | 12,979 | D | F |
| 05 May, 2025 | Vicky A Bailey | Common Stock | A | 6,442 | $0.00 | 15,089 | D | A |
| 05 May, 2025 | Avedick Baruyr Poladian | Common Stock | A | 6,442 | $0.00 | 90,426 | D | A |
| 05 May, 2025 | Bob Shearer | Common Stock | A | 5,798 | $0.00 | 62,729 | D | A |
| 05 May, 2025 | Kenneth B. Robinson | Common Stock | D | 1,418 | $38.81 | 11,865 | D | F |
| 05 May, 2025 | Kenneth B. Robinson | Common Stock | A | 6,442 | $0.00 | 13,283 | D | A |
| 05 May, 2025 | Claire Oneill | Common Stock | A | 5,798 | $0.00 | 12,473 | D | A |