Alcoa Corporation
US ˙ NYSE ˙ US0138721065

SecurityAA / Alcoa Corporation
InstitutionNomura Holdings Inc
Latest Disclosed Ownership21,194 shares
Latest Disclosed Value $ 1,405,798
Nomura Holdings Inc ownership in AA / Alcoa Corporation

On May 15, 2026 - Nomura Holdings Inc filed a 13F-HR form disclosing ownership of 21,194 shares of Alcoa Corporation (US:AA) valued at $1,405,798 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 23,542 shares of Alcoa Corporation. This represents a change in shares of -9.97% during the quarter. The current value of the position is $1,523,637 USD.

Nomura Holdings Inc has a history of taking positions in derivatives of the underlying security (AA) in the form of stock options. The firm currently holds call options representing 0 of underlying shares valued at $0 USD and put options representing 0 of underlying shares valued at $0 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.

AA / Alcoa 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 ALCOA COM 013872106 21,194 -2,348 -9.97 1,406 12.31 0.0029
2026-02-17 2025-12-31 13F ALCOA COM 013872106 23,542 10,757 84.14 1,251 197.86 0.0017
2025-11-14 2025-09-30 13F ALCOA COM 013872106 12,785 412 3.33 420 15.07 0.0007
2025-08-14 2025-06-30 13F ALCOA COM 013872106 12,373 2,475 25.01 365 21.26 0.0006
2025-05-15 2025-03-31 13F ALCOA COM 013872106 9,898 -22,556 -69.50 302 -75.45 0.0006
2025-02-14 2024-12-31 13F ALCOA COM 013872106 32,454 32,454 1,226 0.0017
2025-01-13 2024-09-30 13F/A-1 ALCOA COM 013872106 0 -18,198 -100.00 0 -100.00
2024-11-14 2024-09-30 13F ALCOA COM 013872106 0 0
2024-08-14 2024-06-30 13F ALCOA COM 013872106 18,198 11,839 186.18 724 237.85 0.0014
2024-05-15 2024-03-31 13F ALCOA COM 013872106 6,359 -669,631 -99.06 215 -99.07 0.0005
2024-03-27 2023-12-31 13F/A-1 ALCOA COM 013872106 675,990 641,116 1,838.38 22,984 2,168.81 0.0623
2024-02-14 2023-12-31 13F ALCOA COM 013872106 675,990 641,116 22,984 0.0473
2023-11-14 2023-09-30 13F ALCOA COM 013872106 34,874 -58,052 -62.47 1,013 -67.86 0.0029
2023-08-14 2023-06-30 13F ALCOA COM 013872106 92,926 26,458 39.81 3,153 11.46 0.0085
2023-05-15 2023-03-31 13F ALCOA COM 013872106 66,468 34,563 108.33 2,829 282,700.00 0.0090
2023-02-15 2022-12-31 13F/A-1 ALCOA CMN 013872106 31,905 -104,595 -76.63 1 -99.98 0.0059
2023-02-14 2022-12-31 13F ALCOA CMN 013872106 31,905 -104,595 1 0.0071
2022-11-15 2022-09-30 13F ALCOA CMN 013872106 136,500 45,000 49.18 4,591 12.08 0.0188
2022-08-17 2022-06-30 13F/A-1 ALCOA CMN 013872106 91,500 60,240 192.71 4,096 44.63 0.0141
2022-08-15 2022-06-30 13F ALCOA CMN 013872106 91,500 60,240 4,096 0.0114
2022-05-18 2022-03-31 13F ALCOA CMN 013872106 31,260 31,260 2,832 0.0085
2022-02-14 2021-12-31 13F ALCOA CMN 013872106 0 -7,104 -100.00 0 -100.00
2021-11-15 2021-09-30 13F ALCOA CMN 013872106 7,104 -11,379 -61.56 353 -48.16 0.0009
2021-08-16 2021-06-30 13F ALCOA CMN 013872106 18,483 18,483 681 0.0017
2021-05-17 2021-03-31 13F ALCOA CMN 013872106 0 -167,202 -100.00 0 -100.00
2021-02-16 2020-12-31 13F ALCOA CMN 013872106 167,202 64,823 63.32 4 -99.75 0.0064
2020-11-12 2020-09-30 13F ALCOA CMN 013872106 102,379 -21,857 -17.59 1,200 -14.04 0.0026
2020-08-14 2020-06-30 13F ALCOA CMN 013872106 124,236 16,782 15.62 1,396 110.56 0.0049
2020-05-15 2020-03-31 13F/A-1 ALCOA CMN 013872106 107,454 -4,593,683 -97.71 663 -99.34 0.0028
2020-05-14 2020-03-31 13F ALCOA CMN 013872106 107,454 -4,593,683 663 5,282.3226
2020-02-14 2019-12-31 13F ALCOA CMN 013872106 4,701,137 4,503,344 2,276.80 100,848 2,468.07 0.3741
2019-11-14 2019-09-30 13F ALCOA CMN 013872106 197,793 131,630 198.95 3,927 158.53 0.0150
2019-08-23 2019-06-30 13F/A-1 ALCOA CMN 013872106 66,163 36,383 122.17 1,519 73.20 0.0067
2019-08-14 2019-06-30 13F ALCOA CMN 013872106 66,163 36,383 1,519
2019-05-14 2019-03-31 13F ALCOA CMN 013872106 29,780 -26,293 -46.89 877 -40.98 0.0037
2019-02-14 2018-12-31 13F ALCOA CMN 013872106 56,073 -26,347 -31.97 1,486 -55.87 0.0055
2018-11-14 2018-09-30 13F ALCOA CMN 013872106 82,420 18,163 28.27 3,367 11.75 0.0118
2018-08-17 2018-06-30 13F/A-1 ALCOA CMN 013872106 64,257 -27,514 -29.98 3,013 -26.90 0.0096
2018-08-14 2018-06-30 13F ALCOA CMN 013872106 64,257 -27,514 2,640
2018-05-14 2018-03-31 13F/A-1 ALCOA CMN 013872106 91,771 -104,064 -53.14 4,122 -60.93 0.0071
2018-05-14 2018-03-31 13F ALCOA CMN 013872106 287,606 14,672
2018-02-14 2017-12-31 13F ALCOA CMN 013872106 195,835 8,286 4.42 10,550 20.72 0.0188
2017-11-14 2017-09-30 13F ALCOA CMN 013872106 187,549 -10,389 -5.25 8,739 35.19 0.0184
2017-08-15 2017-06-30 13F ALCOA CMN 013872106 197,938 -92,604 -31.87 6,464 -35.33 0.0158
2017-05-18 2017-03-31 13F/A-1 ALCOA CMN 013872106 290,542 149,530 106.04 9,996 152.04 0.0260
2017-05-15 2017-03-31 13F ALCOA CMN 013872106 290,542 9,996
2017-02-13 2016-12-31 13F ALCOA CMN 013872106 141,012 141,012 -51.47 3,966 -60.32 0.0101
2015-11-16 2015-09-30 13F AA 5 3 CMN 013817309 0 -869 -100.00 0 -100.00
2015-08-14 2015-06-30 13F AA 5 3 CMN 013817309 869 869 0.00 35 0.0001
2015-02-17 2014-12-31 13F AA 5 3 CMN 013817309 0 -40,000 -100.00 0 -100.00
2014-11-14 2014-09-30 13F AA 5 3 CMN 013817309 40,000 40,000 1,992 0.0054
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 ALCOA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-17 2025-12-31 13F ALCOA COM Call 82,500 4,384 n/a n/a n/a
2025-05-15 2025-03-31 13F ALCOA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2025-02-14 2024-12-31 13F ALCOA COM Call 30,000 0.00 1,133 -2.07 n/a n/a n/a
2025-01-13 2024-09-30 13F/A ALCOA COM Call 30,000 0.00 1,157 -3.02 n/a n/a n/a
2024-11-14 2024-09-30 13F ALCOA COM Call 30,000 1,157 n/a n/a n/a
2024-08-14 2024-06-30 13F ALCOA COM Call 30,000 1,193 n/a n/a n/a
2024-03-27 2023-12-31 13F/A ALCOA COM Call 0 0 n/a n/a n/a
2024-03-27 2023-12-31 13F/A ALCOA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2024-02-14 2023-12-31 13F ALCOA COM Call 0 0 n/a n/a n/a
2023-11-14 2023-09-30 13F ALCOA COM Call 19,200 0.00 558 -14.44 n/a n/a n/a
2023-08-14 2023-06-30 13F ALCOA COM Call 19,200 651 n/a n/a n/a
Disclosed Put 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
(%)
2026-02-17 2025-12-31 13F ALCOA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-11-14 2025-09-30 13F ALCOA COM Put 37,300 0.00 1,227 11.45 n/a n/a n/a
2025-08-14 2025-06-30 13F ALCOA COM Put 37,300 1,101 n/a n/a n/a
2024-05-15 2024-03-31 13F ALCOA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2024-03-27 2023-12-31 13F/A ALCOA COM Put 14,900 0.00 507 17.13 n/a n/a n/a
2024-02-14 2023-12-31 13F ALCOA COM Put 14,900 507 n/a n/a n/a
2023-11-14 2023-09-30 13F ALCOA COM Put 14,900 -14.37 433 -26.78 n/a n/a n/a
2023-08-14 2023-06-30 13F ALCOA COM Put 17,400 590 n/a n/a n/a
2018-08-17 2018-06-30 13F/A ALCOA CMN Put 0 -100.00 0 -100.00 n/a n/a n/a
2018-05-14 2018-03-31 13F ALCOA CMN Put 170,000 0.00 9,158 0.00 n/a n/a n/a
2018-02-14 2017-12-31 13F ALCOA CMN Put 170,000 0.00 9,158 15.62 n/a n/a n/a
2017-11-14 2017-09-30 13F ALCOA CMN Put 170,000 70.00 7,921 142.60 n/a n/a n/a
2017-08-15 2017-06-30 13F ALCOA CMN Put 100,000 0.00 3,265 -5.11 n/a n/a n/a
2017-05-18 2017-03-31 13F/A ALCOA CMN Put 100,000 3,441 n/a n/a n/a
2017-05-15 2017-03-31 13F ALCOA CMN Put 100,000 3,441 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.