Alcoa Corporation
MX ˙ BMV ˙ US0138721065
SecurityMX:AA1 / Alcoa Corporation
InstitutionState Street Corp
Latest Disclosed Ownership10,881,537 shares
Latest Disclosed Value $ 721,772,349
State Street Corp reports 1.22% decrease in ownership of AA1 / Alcoa Corporation

On May 15, 2026 - State Street Corp filed a 13F-HR form disclosing ownership of 10,881,537 shares of Alcoa Corporation (MX:AA1) valued at $721,772,349 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 11,015,399 shares of Alcoa Corporation. This represents a change in shares of -1.22% 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)
2026-05-15 2026-03-31 13F ALCOA COM 013872106 10,881,537 -133,862 -1.22 721,772 23.30 0.0249
2026-02-13 2025-12-31 13F ALCOA COM 013872106 11,015,399 -443,130 -3.87 585,358 55.32 0.0196
2025-11-14 2025-09-30 13F ALCOA COM 013872106 11,458,529 721,063 6.72 376,871 18.94 0.0131
2025-08-14 2025-06-30 13F ALCOA COM 013872106 10,737,466 959,240 9.81 316,863 6.25 0.0119
2025-05-15 2025-03-31 13F ALCOA COM 013872106 9,778,226 105,859 1.09 298,236 -18.39 0.0123
2025-02-14 2024-12-31 13F ALCOA COM 013872106 9,672,367 108,722 1.14 365,422 -0.96 0.0144
2024-11-14 2024-09-30 13F ALCOA COM 013872106 9,563,645 1,805,915 23.28 368,965 19.56 0.0150
2024-08-14 2024-06-30 13F ALCOA COM 013872106 7,757,730 -321,636 -3.98 308,602 13.04 0.0135
2024-05-15 2024-03-31 13F ALCOA COM 013872106 8,079,366 -267,500 -3.20 273,002 -3.80 0.0122
2024-02-14 2023-12-31 13F ALCOA COM 013872106 8,346,866 807,487 10.71 283,793 29.53 0.0138
2023-11-14 2023-09-30 13F ALCOA COM 013872106 7,539,379 -645,608 -7.89 219,094 -21.11 0.0121
2023-08-14 2023-06-30 13F ALCOA COM 013872106 8,184,987 -88,490 -1.07 277,717 -21.13 0.0146
2023-05-15 2023-03-31 13F ALCOA COM 013872106 8,273,477 271,387 3.39 352,119 -3.23 0.0199
2023-05-15 2022-12-31 13F/A-99 ALCOA COM 013872106 8,002,090 732,949 10.08 363,855 48.71 0.0214
2023-05-15 2022-12-31 13F ALCOA COM 013872106 8,002,090 732,949 363,855 0.0214
2022-11-15 2022-09-30 13F ALCOA COM 013872106 7,269,141 -572,972 -7.31 244,679 -31.55 0.0155
2022-08-15 2022-06-30 13F ALCOA COM 013872106 7,842,113 1,101,643 16.34 357,444 -41.10 0.0214
2022-05-16 2022-03-31 13F ALCOA COM 013872106 6,740,470 356,919 5.59 606,845 59.56 0.0300
2022-02-14 2021-12-31 13F ALCOA COM 013872106 6,383,551 1,943,329 43.77 380,332 75.02 0.0180
2021-11-15 2021-09-30 13F ALCOA COM 013872106 4,440,222 -1,064,053 -19.33 217,304 7.16 0.0115
2021-08-16 2021-06-30 13F ALCOA COM 013872106 5,504,275 -782,730 -12.45 202,777 -0.73 0.0107
2021-07-09 2021-03-31 13F/A-1 ALCOA COM 013872106 6,287,005 657,353 11.68 204,265 57.41 0.0117
2021-05-17 2021-03-31 13F ALCOA COM 013872106 6,287,005 657,353 204,265 0.0117
2021-02-16 2020-12-31 13F ALCOA COM 013872106 5,629,652 -146,357 -2.53 129,763 93.17 0.0079
2020-11-10 2020-09-30 13F ALCOA COM 013872106 5,776,009 127,249 2.25 67,175 5.80 0.0046
2020-08-14 2020-06-30 13F ALCOA COM 013872106 5,648,760 2,121,309 60.14 63,492 192.20 0.0046
2020-06-19 2020-03-31 13F/A-1 ALCOA COM 013872106 3,527,451 -275,377 -7.24 21,729 -73.44 0.0019
2020-05-11 2020-03-31 13F ALCOA COM 013872106 3,527,451 -275,377 21,729 1,908.2437
2020-02-06 2019-12-31 13F ALCOA COM 013872106 3,802,828 494,413 14.94 81,799 23.19 0.0056
2019-11-14 2019-09-30 13F ALCOA COM 013872106 3,308,415 -287,490 -7.99 66,400 -21.12 0.0049
2019-08-14 2019-06-30 13F ALCOA COM 013872106 3,595,905 207,593 6.13 84,180 -11.77 0.0063
2019-05-15 2019-03-31 13F ALCOA COM 013872106 3,388,312 53,473 1.60 95,415 7.64 0.0074
2019-02-12 2018-12-31 13F ALCOA COM 013872106 3,334,839 -39,799 -1.18 88,640 -34.99 0.0081
2018-11-09 2018-09-30 13F ALCOA Common equity shares 013872106 3,374,638 -3,245 -0.10 136,338 -13.91 0.0105
2018-08-14 2018-06-30 13F ALCOA Common equity shares 013872106 3,377,883 3,929 0.12 158,360 4.40 0.0132
2018-05-15 2018-03-31 13F ALCOA Common equity shares 013872106 3,373,954 -200,014 -5.60 151,685 -21.21 0.0129
2018-02-14 2017-12-31 13F ALCOA Common equity shares 013872106 3,573,968 222,382 6.64 192,525 23.22 0.0155
2017-11-14 2017-09-30 13F ALCOA Common equity shares 013872106 3,351,586 -154,938 -4.42 156,248 36.48 0.0135
2017-08-14 2017-06-30 13F ALCOA Common equity shares 013872106 3,506,524 151,562 4.52 114,483 -0.80 0.0101
2017-05-15 2017-03-31 13F ALCOA Common equity shares 013872106 3,354,962 -226,057 -6.31 115,412 14.77 0.0103
2017-02-09 2016-12-31 13F ALCOA Common equity shares 013872106 3,581,019 -57,274,736 -94.12 100,555 -83.70 0.0095
2017-01-13 2016-09-30 13F/A-1 ALCOA Common equity shares 013817507 60,855,755 60,344,255 11,797.51 617,072 3,640.74 0.0622
2016-08-12 2016-06-30 13F ALCOA Conv Bond 013817309 511,500 0 0.00 16,496 1.58 0.0018
2016-05-20 2016-03-31 13F/A-1 ALCOA Preferred shares 013817309 511,500 -49,500 -8.82 16,240 -11.88 0.0018
2016-05-12 2016-03-31 13F ALCOA Default 013817309 511,500 16,240
2016-02-16 2015-12-31 13F ALCOA Default 013817309 561,000 -90,500 -13.89 18,429 -16.31 0.0020
2015-11-16 2015-09-30 13F ALCOA Default 013817309 651,500 -37,500 -5.44 22,021 -20.40 0.0026
2015-08-13 2015-06-30 13F ALCOA Default 013817309 689,000 126,500 22.49 27,663 12.67 0.0030
2015-05-15 2015-03-31 13F ALCOA Default 013817309 562,500 -65,000 -10.36 24,553 -22.75 0.0025
2015-02-11 2014-12-31 13F ALCOA Default 013817309 627,500 127,500 25.50 31,783 27.39 0.0032
2014-11-12 2014-09-30 13F/A-1 ALCOA Default 013817309 500,000 500,000 24,950 0.0027
2014-11-10 2014-09-30 13F ALCOA Default 013817309 500,000 24,950 0.0027
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.