As of June 06, 2026, the three largest insider holders of OXY are Hathaway Inc Berkshire (TenPercentOwner, 264.94Mn shares), Vicki A. Hollub (President And Ceo, 1.11Mn shares), Kenneth Dillon (Senior Vice President, 372.20K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| William R Klesse | - | 218,913 | 0 | 17 Dec, 2025 |
| Stephen I Chazen | Ceo | 293,777 | 0 | 11 May, 2022 |
| Hathaway Inc Berkshire | - | 0 | 264,941,431 | 11 Feb, 2025 |
| Carlos M Gutierrez | - | 78,917 | 0 | 24 Feb, 2026 |
| Andrew Gould | - | 42,850 | 0 | 07 May, 2025 |
| Jack B Moore | - | 70,020 | 0 | 07 May, 2025 |
| Vicky A Bailey | - | 12,979 | 0 | 07 May, 2025 |
| Avedick Baruyr Poladian | - | 75,426 | 15,000 | 16 Apr, 2026 |
| Bob Shearer | - | 62,729 | 0 | 07 May, 2025 |
| Sylvia J Kerrigan | Svp Chief Legal Officer | 179,516 | 0 | 03 Mar, 2026 |
| Marcia E. Backus | Svp, Gc Cco | 150,792 | 0 | 02 Mar, 2022 |
| Vicki A. Hollub | President And Ceo | 1,108,806 | 0 | 03 Mar, 2026 |
| Christopher O Champion | Vp, Cao And Controller | 144,004 | 0 | 03 Mar, 2026 |
| Kenneth Dillon | Senior Vice President | 372,201 | 0 | 03 Mar, 2026 |
| Peter J. Bennett | Vice President | 146,156 | 0 | 01 Mar, 2024 |
| Robert L Peterson | Senior Vice President | 313,199 | 0 | 03 Mar, 2026 |
| Richard A. Jackson | Senior Vice President And Coo | 337,495 | 0 | 03 Mar, 2026 |
| Kenneth B. Robinson | - | 11,865 | 0 | 07 May, 2025 |
| Claire Oneill | - | 12,473 | 0 | 07 May, 2025 |
| Jeff F Simmons | Senior Vice President | 332,726 | 0 | 03 Mar, 2026 |
| Sunil Mathew | Svp Cfo | 228,739 | 0 | 03 Mar, 2026 |
* 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 |
|---|---|---|---|---|---|---|---|---|
| 14 Apr, 2026 | Avedick Baruyr Poladian | Common Stock | D | 5,000 | $0.00 | 85,426 | D | G |
| 14 Apr, 2026 | Avedick Baruyr Poladian | Common Stock | A | 5,000 | $0.00 | 5,000 | I | G |
| 14 Apr, 2026 | Avedick Baruyr Poladian | Common Stock | D | 5,000 | $0.00 | 80,426 | D | G |
| 14 Apr, 2026 | Avedick Baruyr Poladian | Common Stock | A | 5,000 | $0.00 | 5,000 | I | G |
| 14 Apr, 2026 | Avedick Baruyr Poladian | Common Stock | D | 5,000 | $0.00 | 75,426 | D | G |
| 14 Apr, 2026 | Avedick Baruyr Poladian | Common Stock | A | 5,000 | $0.00 | 5,000 | I | G |
| 28 Feb, 2026 | Kenneth Dillon | Common Stock | D | 10,131 | $53.08 | 344,318 | D | F |
| 28 Feb, 2026 | Robert L Peterson | Common Stock | D | 8,988 | $53.08 | 289,084 | D | F |
| 28 Feb, 2026 | Richard A. Jackson | Common Stock | D | 10,131 | $53.08 | 299,816 | D | F |
| 28 Feb, 2026 | Vicki A. Hollub | Common Stock | D | 33,136 | $53.08 | 1,014,608 | D | F |
| 28 Feb, 2026 | Jeff F Simmons | Common Stock | D | 9,436 | $53.08 | 308,611 | D | F |
| 28 Feb, 2026 | Christopher O Champion | Common Stock | D | 4,970 | $53.08 | 130,439 | D | F |
| 28 Feb, 2026 | Sylvia J Kerrigan | Common Stock | D | 18,304 | $53.08 | 130,533 | D | F |
| 28 Feb, 2026 | Sunil Mathew | Common Stock | D | 9,732 | $53.08 | 202,363 | D | F |
| 28 Feb, 2026 | Robert L Peterson | Common Stock | D | 8,988 | $53.08 | 289,084 | D | F |
| 28 Feb, 2026 | Robert L Peterson | Common Stock | D | 8,988 | $53.08 | 289,084 | D | F |
| 28 Feb, 2026 | Jeff F Simmons | Common Stock | D | 9,436 | $53.08 | 308,611 | D | F |
| 28 Feb, 2026 | Jeff F Simmons | Common Stock | D | 9,436 | $53.08 | 308,611 | D | F |
| 01 Mar, 2026 | Christopher O Champion | Common Stock | A | 13,565 | $0.00 | 144,004 | D | A |
| 01 Mar, 2026 | Robert L Peterson | Common Stock | A | 24,115 | $0.00 | 313,199 | D | A |