Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionXTX Topco Ltd
Latest Disclosed Ownership117,757 shares
Latest Disclosed Value $ 7,654,205
XTX Topco Ltd reports 19.19% decrease in ownership of OXY / Occidental Petroleum Corporation

On May 15, 2026 - XTX Topco Ltd filed a 13F-HR form disclosing ownership of 117,757 shares of Occidental Petroleum Corporation (US:OXY) valued at $7,654,205 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 145,714 shares of Occidental Petroleum Corporation. This represents a change in shares of -19.19% during the quarter. The current value of the position is $7,023,027 USD.

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 117,757 -27,957 -19.19 7,654 27.76 0.1331
2026-02-17 2025-12-31 13F OCCIDENTAL PETE COM 674599105 145,714 145,714 5,992 0.1573
2025-08-12 2025-06-30 13F OCCIDENTAL PETE COM 674599105 0 -52,490 -100.00 0 -100.00
2025-05-08 2025-03-31 13F OCCIDENTAL PETE COM 674599105 52,490 52,490 2,591 0.1325
2025-02-13 2024-12-31 13F OCCIDENTAL PETE COM 674599105 0 -5,797 -100.00 0 -100.00
2024-11-14 2024-09-30 13F OCCIDENTAL PETE COM 674599105 5,797 1,738 42.82 299 16.86 0.0216
2024-08-12 2024-06-30 13F OCCIDENTAL PETE COM 674599105 4,059 4,059 256 0.0219
2023-11-13 2023-09-30 13F OCCIDENTAL PETE COM 674599105 0 -12,038 -100.00 0 -100.00
2023-08-14 2023-06-30 13F OCCIDENTAL PETE COM 674599105 12,038 12,038 708 0.1268
2023-05-12 2023-03-31 13F OCCIDENTAL PETE COM 674599105 0 -11,024 -100.00 0 -100.00
2023-02-14 2022-12-31 13F OCCIDENTAL PETE COM 674599105 11,024 259 2.41 694 4.83 0.1474
2022-11-14 2022-09-30 13F OCCIDENTAL PETE COM 674599105 10,765 10,765 662 0.1639
2022-02-11 2021-12-31 13F OCCIDENTAL PETE COM 674599105 0 -26,326 -100.00 0 -100.00
2021-11-12 2021-09-30 13F OCCIDENTAL PETE COM 674599105 26,326 26,326 779 0.2617
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.