OCCIDENTAL PETROLEUM CORP /DE/
Total Trades
31
Buys
28
Sells
2
Largest Trade
$1M+
Insiders
5
Institutional Funds
987
Inst. Value
$1M+
Activist Filings
17
Insider Trades
| Insider | Title | Type | Value | Shares | Price | Date |
|---|---|---|---|---|---|---|
| KLESSE WILLIAM R | Director | BUY | $100K–$500K | 5K | $38.98 | Dec 17, 2025 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 2.9M | $59.70 | Jun 18, 2024 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 1.8M | $60.30 | Jun 13, 2024 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 2.6M | $59.75 | Jun 8, 2024 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 4.3M | $57.15 | Feb 6, 2024 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 5.2M | $60.22 | Dec 22, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 3.9M | $62.83 | Oct 25, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 2.1M | $57.10 | Jun 29, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 4.7M | $58.57 | May 30, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 3.5M | $58.26 | May 18, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 2.2M | $58.06 | May 16, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 3.7M | $58.98 | Mar 27, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 7.9M | $59.17 | Mar 16, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 5.8M | $61.10 | Mar 8, 2023 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 6.0M | $58.89 | Sep 28, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 6.7M | $58.48 | Aug 8, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 1.9M | $57.70 | Jul 18, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 4.3M | $58.05 | Jul 13, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 12.0M | $57.94 | Jul 7, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 9.9M | $58.91 | Jul 2, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 794K | $55.39 | Jun 27, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 9.6M | $55.36 | Jun 22, 2022 |
| Champion Christopher O | VP | SELL | $1M+ | 112K | $70.44 | Jun 3, 2022 |
| Champion Christopher O | VP | EXERCISE | $1M+ | 107K | $38.46 | Jun 3, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 902K | $57.32 | May 13, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 5.9M | $57.11 | May 5, 2022 |
| Hollub Vicki A. | President and CEO | BUY | $500K+ | 14K | $56.24 | Mar 30, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 18.1M | $54.41 | Mar 16, 2022 |
| POLADIAN AVEDICK BARUYR | Director | SELL | $1M+ | 20K | $57.23 | Mar 15, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 27.1M | $56.60 | Mar 12, 2022 |
| BERKSHIRE HATHAWAY INC | 10% Owner | BUY | $1M+ | 61.4M | $50.88 | Mar 5, 2022 |
Institutional Ownership
13F filings as of Dec 31, 2025 · 987 funds holding
| Fund | Shares | Value | Type |
|---|---|---|---|
| DODGE & COX | 79.5M | $1M+ | SH |
| STATE STREET CORP | 39.5M | $1M+ | SH |
| GEODE CAPITAL MANAGEMENT, LLC | 16.7M | $1M+ | SH |
| DIMENSIONAL FUND ADVISORS LP | 8.5M | $1M+ | SH |
| Encompass Capital Advisors LLC | 5.6M | $1M+ | SH (Call) |
| CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 5.4M | $1M+ | SH |
| Pacer Advisors, Inc. | 5.1M | $1M+ | SH |
| Smead Capital Management, Inc. | 3.5M | $1M+ | SH |
| Adams Asset Advisors, LLC | 3.3M | $1M+ | SH |
| SCHARF INVESTMENTS, LLC | 2.9M | $1M+ | SH |
| AQR CAPITAL MANAGEMENT LLC | 2.6M | $1M+ | SH |
| COOKE & BIELER LP | 2.3M | $1M+ | SH |
| Swiss National Bank | 2.0M | $1M+ | SH |
| AMERICAN CENTURY COMPANIES INC | 1.7M | $1M+ | SH |
| Sumitomo Mitsui Trust Group, Inc. | 1.6M | $1M+ | SH |
| Mitsubishi UFJ Asset Management Co., Ltd. | 1.5M | $1M+ | SH |
| BNP PARIBAS FINANCIAL MARKETS | 1.4M | $1M+ | SH |
| CALIFORNIA PUBLIC EMPLOYEES RETIREMENT SYSTEM | 1.3M | $1M+ | SH |
| RHUMBLINE ADVISERS | 1.2M | $1M+ | SH |
| VANGUARD GROUP INC | 1.2M | $1M+ | SH |
Activist & 5%+ Owners
SC 13D/13G filings — investors holding 5%+ of outstanding shares
SC 13G/A · Aug 14, 2025
32.7%
348.9M shares
SC 13G/A · Apr 30, 2025
8.5%
80.2M shares
SC 13G/A · Feb 13, 2025
8.8%
84.3M shares
The Vanguard Group - 23-1945930
SC 13G/A · Feb 13, 2024
6.5%
56.8M shares
SC 13G/A · Feb 13, 2024
10.7%
95.3M shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G/A · Jan 25, 2024
4.6%
0 shares
SC 13G/A · Jan 10, 2024
34.0%
327.6M shares
SC 13G/A · Jul 7, 2023
4.7%
42.3M shares
SC 13G/A · Feb 14, 2023
11.6%
107.4M shares
SC 13G/A · Feb 14, 2023
28.0%
278.2M shares
SC 13G/A · Sep 9, 2022
26.8%
272.2M shares
SC 13G/A · May 6, 2022
21.6%
220.2M shares
SC 13G/A · Mar 11, 2022
6.4%
59.6M shares
SC 13G · Mar 4, 2022
11.2%
113.7M shares
SC 13G/A · Feb 14, 2022
13.4%
127.6M shares
STATE STREET CORPORATION I.R.S. IDENTIFICATION NO. OF THE ABOVE PERSON 04-2456637
SC 13G/A · Feb 11, 2022
6.2%
0 shares