Alcoa Corporation
CH ˙ SWX ˙ US0138721065
SecurityCH:AA / Alcoa Corporation
InstitutionEncompass Capital Advisors LLC
Latest Disclosed Ownership605,149 shares
Latest Disclosed Value $ 40,139,533
Encompass Capital Advisors LLC reports 20.73% decrease in ownership of AA / Alcoa Corporation

On May 15, 2026 - Encompass Capital Advisors LLC filed a 13F-HR form disclosing ownership of 605,149 shares of Alcoa Corporation (CH:AA) valued at $40,139,533 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 763,400 shares of Alcoa Corporation. This represents a change in shares of -20.73% 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 ALCOA COM 013872106 605,149 -158,251 -20.73 40,140 -1.06 1.2024
2026-02-17 2025-12-31 13F ALCOA COM 013872106 763,400 -93,820 -10.94 40,567 43.89 1.6556
2025-11-14 2025-09-30 13F ALCOA COM 013872106 857,220 857,220 28,194 0.9923
2025-08-14 2025-06-30 13F ALCOA COM 013872106 0 -268,923 -100.00 0 -100.00
2025-05-15 2025-03-31 13F ALCOA COM 013872106 268,923 -686,583 -71.86 8,202 -77.28 0.3140
2025-02-14 2024-12-31 13F ALCOA COM 013872106 955,506 -1,193,384 -55.53 36,099 -56.46 1.3563
2024-11-14 2024-09-30 13F ALCOA COM 013872106 2,148,890 1,188,890 123.84 82,904 117.09 4.0372
2024-08-14 2024-06-30 13F ALCOA COM 013872106 960,000 -1,126,878 -54.00 38,189 -45.84 2.0648
2024-05-15 2024-03-31 13F ALCOA COM 013872106 2,086,878 1,280,692 158.86 70,516 157.26 3.8257
2024-02-14 2023-12-31 13F ALCOA COM 013872106 806,186 806,186 27,410 1.6028
2023-05-15 2023-03-31 13F ALCOA COM 013872106 0 -500,073 -100.00 0 -100.00
2023-02-14 2022-12-31 13F ALCOA COM 013872106 500,073 500,073 22,738 0.8820
2022-11-14 2022-09-30 13F ALCOA COM 013872106 0 -200,000 -100.00 0 -100.00
2022-08-15 2022-06-30 13F ALCOA COM 013872106 200,000 50,000 33.33 9,116 -32.50 0.6142
2022-05-16 2022-03-31 13F ALCOA COM 013872106 150,000 150,000 13,505 0.5125
2022-02-14 2021-12-31 13F ALCOA COM 013872106 0 -150,000 -100.00 0 -100.00
2021-11-15 2021-09-30 13F ALCOA COM 013872106 150,000 -110,000 -42.31 7,341 -23.36 0.4494
2021-08-16 2021-06-30 13F ALCOA COM 013872106 260,000 110,000 73.33 9,578 96.51 0.6676
2021-05-17 2021-03-31 13F ALCOA COM 013872106 150,000 -625,000 -80.65 4,874 -72.72 0.3810
2021-02-16 2020-12-31 13F ALCOA COM 013872106 775,000 -752,291 -49.26 17,864 0.57 1.2653
2020-11-16 2020-09-30 13F ALCOA COM 013872106 1,527,291 1,527,291 17,762 1.5824
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.