Occidental Petroleum Corp
OXY- Exchange
- NYSE
- Industry
- Crude Petroleum & Natural Gas
- SEC CIK
- 0000797468
No open-market purchases or sales by Occidental Petroleum Corp insiders were filed in the last 90 days; 1,242 institutions reported holding it in 13F filings for Q2 2026, worth $40.5B in total; 3 superinvestors hold it, including Berkshire Hathaway and H&H International Investment.
Other share classesOXY.WT
Holders of 5% or more of OXY
Holders whose latest Schedule 13D or 13G filing reports 5% or more of Occidental Petroleum Corp, largest stake first. The change is against the holder's previous filing.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Berkshire Hathaway IncSuperinvestorBerkshire Hathaway | 13G/A | 32.70%348.9M shares | – | Aug 14, 20251 filing | Aug 14, 2025 | SEC |
| Dodge & Cox | 13G/A | 7.50%74.1M shares | −1.30 ppfrom 8.80% | Feb 13, 20252 filings | May 14, 2026 | SEC |
| Vanguard Capital Management LLC | 13G | 5.51%54.7M shares | New | Apr 30, 20261 filing | Apr 30, 2026 | SEC |
Stakes are as of each holder's latest filing. Holders whose last filing was in the old format (before December 18, 2024) have no stake on record and are not listed, and after an acquisition or delisting holders usually stop filing.
13D and 13G filings
6 Schedule 13D and 13G filings on Occidental Petroleum Corp, newest first, including old-format filings without a stake.
| Filed (ET) | Filer | Form | Stake | Change | Event date | Filing |
|---|---|---|---|---|---|---|
| May 14, 202612:52 PM ET | Dodge & Cox | 13G/A | 7.50%74.1M shares | −1.30 ppfrom 8.80% | Mar 31, 2026 | SEC |
| Apr 30, 202612:14 PM ET | Vanguard Capital Management LLC | 13G | 5.51%54.7M shares | New | Mar 31, 2026 | SEC |
| Mar 27, 202611:05 AM ET | Vanguard Group Inc | 13G/A | 0.00%0 shares | −8.53 ppfrom 8.53%Below 5% | Mar 13, 2026 | SEC |
| Aug 14, 20254:07 PM ET | Berkshire Hathaway Incand 2 othersSuperinvestorBerkshire Hathaway | 13G/A | 32.70%348.9M shares | – | Jun 30, 2025 | SEC |
| Apr 30, 202511:11 AM ET | Vanguard Group Inc | 13G/A | 8.53%80.2M shares | – | Mar 31, 2025 | SEC |
| Feb 13, 20254:11 PM ET | Dodge & Cox | 13G/A | 8.80%84.3M shares | – | Dec 31, 2024 | SEC |
Form 144: proposed insider sales
Notices from officers, directors and other affiliates planning to sell Occidental Petroleum Corp shares.
No Form 144 notices for Occidental Petroleum Corp are on file.