Alcoa Corporation
MX ˙ BMV ˙ US0138721065
SecurityMX:AA1 / Alcoa Corporation
InstitutionRhumbline Advisers
Latest Disclosed Ownership690,617 shares
Latest Disclosed Value $ 45,808,574
Rhumbline Advisers reports 2.22% increase in ownership of AA1 / Alcoa Corporation

On May 12, 2026 - Rhumbline Advisers filed a 13F-HR form disclosing ownership of 690,617 shares of Alcoa Corporation (MX:AA1) valued at $45,808,574 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 675,602 shares of Alcoa Corporation. This represents a change in shares of 2.22% 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)
2026-05-12 2026-03-31 13F ALCOA COM 013872106 690,617 15,015 2.22 45,809 27.60 0.0392
2026-02-13 2025-12-31 13F ALCOA COM 013872106 675,602 -3,964 -0.58 35,901 60.63 0.0290
2025-11-06 2025-09-30 13F ALCOA COM 013872106 679,566 -5,200 -0.76 22,351 10.61 0.0180
2025-08-12 2025-06-30 13F ALCOA COM 013872106 684,766 -12,889 -1.85 20,207 -5.03 0.0173
2025-05-29 2025-03-31 13F/A-1 ALCOA COM 013872106 697,655 8,871 1.29 21,278 -18.23 0.0199
2025-04-08 2025-03-31 13F ALCOA COM 013872106 697,655 8,871 21,278 0.0199
2025-05-29 2024-12-31 13F/A-1 ALCOA COM 013872106 688,784 11,094 1.64 26,022 -0.47 0.0233
2025-01-30 2024-12-31 13F ALCOA COM 013872106 688,784 11,094 26,022 0.0233
2024-11-12 2024-09-30 13F ALCOA COM 013872106 677,690 182,501 36.85 26,145 32.73 0.0236
2024-08-01 2024-06-30 13F ALCOA COM 013872106 495,189 -1,097 -0.22 19,699 17.47 0.0185
2024-05-09 2024-03-31 13F ALCOA COM 013872106 496,286 -20,987 -4.06 16,769 -4.65 0.0161
2024-02-08 2023-12-31 13F ALCOA COM 013872106 517,273 -19,386 -3.61 17,587 12.77 0.0184
2023-11-09 2023-09-30 13F ALCOA COM 013872106 536,659 -11,702 -2.13 15,595 -16.18 0.0181
2023-08-08 2023-06-30 13F ALCOA COM 013872106 548,361 14,128 2.64 18,606 84,468.18 0.0208
2023-05-11 2023-03-31 13F ALCOA COM 013872106 534,233 -14,652 -2.67 23 -99.91 0.0281
2023-02-14 2022-12-31 13F ALCOA COM 013872106 548,885 21,565 4.09 24,958 40.61 0.0336
2022-11-10 2022-09-30 13F ALCOA COM 013872106 527,320 3,476 0.66 17,750 -25.66 0.0264
2022-08-11 2022-06-30 13F ALCOA COM 013872106 523,844 47,436 9.96 23,877 -44.33 0.0348
2022-05-12 2022-03-31 13F ALCOA COM 013872106 476,408 -13,618 -2.78 42,891 46.91 0.0552
2022-02-10 2021-12-31 13F ALCOA COM 013872106 490,026 316,513 182.41 29,196 243.81 0.0358
2021-11-12 2021-09-30 13F ALCOA COM 013872106 173,513 -15,336 -8.12 8,492 22.06 0.0115
2021-08-05 2021-06-30 13F ALCOA COM 013872106 188,849 -110,203 -36.85 6,957 -28.40 0.0091
2021-05-06 2021-03-31 13F ALCOA COM 013872106 299,052 -27,254 -8.35 9,716 29.18 0.0132
2021-02-10 2020-12-31 13F ALCOA COM 013872106 326,306 34,812 11.94 7,521 121.86 0.0104
2020-11-12 2020-09-30 13F ALCOA COM 013872106 291,494 -72,919 -20.01 3,390 -17.24 0.0053
2020-08-13 2020-06-30 13F ALCOA COM 013872106 364,413 164,381 82.18 4,096 232.47 0.0068
2020-05-06 2020-03-31 13F ALCOA COM 013872106 200,032 47,383 31.04 1,232 -62.47 0.0026
2020-02-05 2019-12-31 13F ALCOA COM 013872106 152,649 -4,600 -2.93 3,283 4.02 0.0055
2019-10-23 2019-09-30 13F ALCOA COM 013872106 157,249 1,546 0.99 3,156 -13.42 0.0058
2019-08-14 2019-06-30 13F ALCOA COM 013872106 155,703 -683 -0.44 3,645 -17.23 0.0068
2019-05-01 2019-03-31 13F ALCOA COM 013872106 156,386 -24,425 -13.51 4,404 -8.36 0.0085
2019-01-31 2018-12-31 13F ALCOA COM 013872106 180,811 9,109 5.31 4,806 -30.72 0.0105
2018-11-07 2018-09-30 13F ALCOA COM 013872106 171,702 -6,752 -3.78 6,937 -17.08 0.0134
2018-08-06 2018-06-30 13F ALCOA COM 013872106 178,454 -5,897 -3.20 8,366 0.94 0.0169
2018-05-02 2018-03-31 13F ALCOA COM 013872106 184,351 -430 -0.23 8,288 -16.74 0.0173
2018-02-09 2017-12-31 13F ALCOA COM 013872106 184,781 8,898 5.06 9,954 21.39 0.0202
2017-11-06 2017-09-30 13F ALCOA COM 013872106 175,883 3,044 1.76 8,200 45.31 0.0178
2017-08-02 2017-06-30 13F ALCOA COM 013872106 172,839 21,642 14.31 5,643 8.50 0.0129
2017-05-02 2017-03-31 13F ALCOA COM 013872106 151,197 10,385 7.38 5,201 31.54 0.0121
2017-01-27 2016-12-31 13F ALCOA COM 013872106 140,812 -1,785,275 -92.69 3,954 -79.76 0.0100
2016-11-08 2016-09-30 13F ALCOA COM 013872106 1,926,087 1,926,087 19,531 0.0538
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.