Occidental Petroleum Corporation
US ˙ NYSE ˙ US6745991058

SecurityOXY / Occidental Petroleum Corporation
InstitutionCerity Partners LLC
Latest Disclosed Ownership219,885 shares
Latest Disclosed Value $ 14,291,664
Cerity Partners LLC ownership in OXY / Occidental Petroleum Corporation

On May 15, 2026 - Cerity Partners LLC filed a 13F-HR form disclosing ownership of 219,885 shares of Occidental Petroleum Corporation (US:OXY) valued at $14,292,525 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 11, 2026 disclosing 70,735 shares of Occidental Petroleum Corporation. This represents a change in shares of 210.86% during the quarter. The current value of the position is $13,113,941 USD.

Cerity Partners LLC has a history of taking positions in derivatives of the underlying security (OXY) in the form of stock options. The firm currently holds call options representing 200 of underlying shares valued at $13,000 USD .

Note: prior versions of this page mistakenly stated that the share values represented the number of options, not the number of underlying shares. For more information on the data backing these reports, please see the SEC document Frequently Asked Questions About Form 13F.

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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Institutional Put/Call Ratios
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In addition to reporting standard equity and debt issues, institutions with more than 100MM assets under management must also disclose their put and call option holdings. Since put options generally indicate negative sentiment, and call options indicate positive sentiment, we can get a sense of the overall institutional sentiment by plotting the ratio of puts to calls. The chart to the right plots the historical put/call ratio for this instrument.

Using Put/Call Ratio as an indicator of investor sentiment overcomes one of the key deficiencies of using total institutional ownership, which is that a significant amount of assets under management are invested passively to track indices. Passively-managed funds do not typically buy options, so the put/call ratio indicator more closely tracks the sentiment of actively-managed funds.

OXY / Occidental Petroleum Corporation Historical Put/Call Ratio
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 219,885 149,150 210.86 14,292 391.44 0.0100
2026-02-11 2025-12-31 13F OCCIDENTAL PETE COM 674599105 70,735 -13,332 -15.86 2,909 -26.79 0.0042
2025-10-22 2025-09-30 13F OCCIDENTAL PETE COM 674599105 84,067 8,937 11.90 3,972 25.86 0.0064
2025-08-13 2025-06-30 13F OCCIDENTAL PETE Stock 674599105 75,130 -3,390 -4.32 3,156 -18.55 0.0056
2025-04-30 2025-03-31 13F OCCIDENTAL PETE Stock 674599105 78,520 -2,372 -2.93 3,876 -4.53 0.0079
2025-02-13 2024-12-31 13F OCCIDENTAL PETE COM 674599105 80,892 10,312 14.61 4,059 11.60 0.0088
2024-11-12 2024-09-30 13F OCCIDENTAL PETE Stock 674599105 70,580 15,316 27.71 3,638 4.42 0.0081
2024-08-13 2024-06-30 13F OCCIDENTAL PETE COM 674599105 55,264 -10,668 -16.18 3,483 -18.72 0.0092
2024-05-14 2024-03-31 13F OCCIDENTAL PETE Stock 674599105 65,932 30,974 88.60 4,286 105.32 0.0113
2024-01-26 2023-12-31 13F OCCIDENTAL PETE Stock 674599105 34,958 10,387 42.27 2,087 30.93 0.0069
2023-11-14 2023-09-30 13F OCCIDENTAL PETE Equities 674599105 24,571 -14,899 -37.75 1,594 -31.29 0.0078
2023-08-14 2023-06-30 13F OCCIDENTAL PETE COM 674599105 39,470 39,470 2,321 0.0090
2023-05-11 2023-03-31 13F OCCIDENTAL PETE Stock 674599105 0 -14,224 -100.00 0 -100.00
2023-02-15 2022-12-31 13F OCCIDENTAL PETE Stock 674599105 14,224 -2,883 -16.85 1,238 17.79 0.0079
2022-11-14 2022-09-30 13F OCCIDENTAL PETE COM 674599105 17,107 939 5.81 1,051 10.75 0.0126
2022-08-10 2022-06-30 13F OCCIDENTAL PETE Equities 674599105 16,168 4,646 40.32 949 159.29 0.0105
2022-04-25 2022-03-31 13F OCCIDENTAL PETE COM 674599105 11,522 11,522 366 0.0057
2020-11-12 2020-09-30 13F OCCIDENTAL PETE COM 674599105 0 -30,842 -100.00 0 -100.00
2020-08-17 2020-06-30 13F/A-1 OCCIDENTAL PETE COM 674599105 30,842 30,842 564 0.0312
2020-08-14 2020-06-30 13F OCCIDENTAL PETE COM 674599105 30,842 30,842 564 31,105.9488
2020-02-14 2019-12-31 13F OCCIDENTAL PETE COM 674599105 0 -14,230 -100.00 0 -100.00
2019-10-30 2019-09-30 13F OCCIDENTAL PETE COM 674599105 14,230 14,230 632 0.0371
2019-08-14 2019-06-30 13F OCCIDENTAL PETE COM 674599105 0 -7,700 -100.00 0 -100.00
2019-05-14 2019-03-31 13F OCCIDENTAL PETE COM 674599105 7,700 -11,994 -60.90 510 -57.82 0.0343
2019-02-06 2018-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 19,694 680 3.58 1,209 -22.60 0.0810
2018-11-15 2018-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 19,014 -163 -0.85 1,562 -2.68 0.1082
2018-08-15 2018-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 19,177 -5,607 -22.62 1,605 -0.31 0.1186
2018-05-15 2018-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 24,784 -191 -0.76 1,610 -12.50 0.1231
2018-02-14 2017-12-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 24,975 998 4.16 1,840 19.48 0.1235
2017-11-13 2017-09-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 23,977 -105,256 -81.45 1,540 -2.78 0.1090
2017-08-10 2017-06-30 13F OCCIDENTAL PETE CORP DEL COM 674599105 129,233 105,526 445.13 1,584 5.46 0.1327
2017-05-02 2017-03-31 13F OCCIDENTAL PETE CORP DEL COM 674599105 23,707 23,707 1,502 0.1254
Disclosed Call Options
File
Date
Effective
Date
Form Security Class ID Opt Avg Share
Price
Shares ΔShares
(%)
Value
(x1000)
ΔValue
(%)
Prior Allocation
(%)
Allocation
(%)
ΔAllocation
(%)
Cost Basis
(x1000)
Profit
(x1000)
Return
(%)
2026-05-15 2026-03-31 13F OCCIDENTAL PETE COM Call 200 13 -99.02 n/a n/a n/a
2023-05-11 2023-03-31 13F OCCIDENTAL PETE COM Call 1,323 n/a n/a n/a
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.