Occidental Petroleum Corp /De/ (OXY) Insider Ownership

Historic Insider Ownership Trends

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).

Top Direct Holders

Insider ownership data is derived from the last 60 months of Form 4 SEC filings.
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.

Recent Insider Transactions

Detailed insider trading activity based on Form 4 SEC filings.
Download Data
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