Occidental Petroleum Corporation
BG ˙ BUL ˙ US6745991058
SecurityBG:OPC / Occidental Petroleum Corporation
InstitutionWorldquant Millennium Advisors Llc
Latest Disclosed Ownership1,225,765 shares
Latest Disclosed Value $ 79,674,725
Worldquant Millennium Advisors Llc reports 5,761.26% increase in ownership of OPC / Occidental Petroleum Corporation

On May 15, 2026 - Worldquant Millennium Advisors Llc filed a 13F-HR form disclosing ownership of 1,225,765 shares of Occidental Petroleum Corporation (BG:OPC) valued at $79,674,725 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 20,913 shares of Occidental Petroleum Corporation. This represents a change in shares of 5,761.26% during the quarter.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-05-15 2026-03-31 13F OCCIDENTAL PETE COM 674599105 1,225,765 1,204,852 5,761.26 79,675 9,175.20 0.3072
2026-02-17 2025-12-31 13F OCCIDENTAL PETE COM 674599105 20,913 20,913 860 0.0033
2025-05-15 2025-03-31 13F OCCIDENTAL PETE COM 674599105 0 -1,930,776 -100.00 0 -100.00
2025-02-14 2024-12-31 13F OCCIDENTAL PETE COM 674599105 1,930,776 1,766,491 1,075.26 95,400 1,026.72 0.6178
2024-11-14 2024-09-30 13F OCCIDENTAL PETE COM 674599105 164,285 -224,505 -57.74 8,467 -65.45 0.0620
2024-08-14 2024-06-30 13F OCCIDENTAL PETE COM 674599105 388,790 -126,107 -24.49 24,505 -26.77 0.2235
2024-05-15 2024-03-31 13F OCCIDENTAL PETE COM 674599105 514,897 237,737 85.78 33,463 102.21 0.4129
2024-02-14 2023-12-31 13F OCCIDENTAL PETE COM 674599105 277,160 277,160 16,549 0.2316
2023-11-14 2023-09-30 13F OCCIDENTAL PETE COM 674599105 0 -163,925 -100.00 0 -100.00
2023-08-14 2023-06-30 13F OCCIDENTAL PETE COM 674599105 163,925 163,925 9,639 0.1632
2022-11-14 2022-09-30 13F OCCIDENTAL PETE COM 674599105 0 -118,922 -100.00 0 -100.00
2022-08-15 2022-06-30 13F OCCIDENTAL PETE COM 674599105 118,922 -64,634 -35.21 7,002 -32.77 0.2004
2022-05-16 2022-03-31 13F OCCIDENTAL PETE COM 674599105 183,556 28,597 18.45 10,415 131.86 0.2538
2022-02-14 2021-12-31 13F OCCIDENTAL PETE COM 674599105 154,959 -1,108,233 -87.73 4,492 -87.98 0.0893
2021-11-15 2021-09-30 13F OCCIDENTAL PETE COM 674599105 1,263,192 1,194,488 1,738.60 37,365 1,639.53 0.8174
2021-08-16 2021-06-30 13F OCCIDENTAL PETE COM 674599105 68,704 68,704 2,148 0.0475
2021-05-17 2021-03-31 13F OCCIDENTAL PETE COM 674599105 0 -148,719 -100.00 0 -100.00
2021-02-16 2020-12-31 13F OCCIDENTAL PETE COM 674599105 148,719 148,719 2,574 0.0563
2020-11-16 2020-09-30 13F OCCIDENTAL PETE COM 674599105 0 -1,170,439 -100.00 0 -100.00
2020-08-14 2020-06-30 13F OCCIDENTAL PETE COM 674599105 1,170,439 389,510 49.88 21,419 136.86 0.4929
2020-05-14 2020-03-31 13F OCCIDENTAL PETE COM 674599105 780,929 575,330 279.83 9,043 6.73 0.2199
2020-02-14 2019-12-31 13F OCCIDENTAL PETE COM 674599105 205,599 -83,518 -28.89 8,473 -34.10 0.1622
2019-11-14 2019-09-30 13F OCCIDENTAL PETE COM 674599105 289,117 -603,965 -67.63 12,857 -71.37 0.2500
2019-08-14 2019-06-30 13F OCCIDENTAL PETE COM 674599105 893,082 419,212 88.47 44,904 43.14 0.8551
2019-05-14 2019-03-31 13F OCCIDENTAL PETE COM 674599105 473,870 106,171 28.87 31,370 39.00 0.7440
2019-02-14 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 367,699 266,331 262.74 22,569 170.97 0.6680
2018-11-14 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 101,368 101,368 8,329 0.2790
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.