Alcoa Corporation
MX ˙ BMV ˙ US0138721065
SecurityMX:AA1 / Alcoa Corporation
InstitutionCitigroup Inc
Latest Disclosed Ownership123,731 shares
Latest Disclosed Value $ 8,207,079
Citigroup Inc ownership in AA1 / Alcoa Corporation

On May 11, 2026 - Citigroup Inc filed a 13F-HR form disclosing ownership of 123,731 shares of Alcoa Corporation (MX:AA1) valued at $8,207,079 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 13, 2026 disclosing 669,708 shares of Alcoa Corporation. This represents a change in shares of -81.52% during the quarter.

Citigroup Inc has a history of taking positions in derivatives of the underlying security (AA1) 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.

MX:AA1 / 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)
2026-05-11 2026-03-31 13F ALCOA COM 013872106 123,731 -545,977 -81.52 8,207 -76.94 0.0035
2026-02-13 2025-12-31 13F ALCOA COM 013872106 669,708 431,648 181.32 35,588 354.57 0.0157
2025-11-10 2025-09-30 13F ALCOA COM 013872106 238,060 -515,175 -68.39 7,830 -64.78 0.0035
2025-08-11 2025-06-30 13F ALCOA COM 013872106 753,235 230,372 44.06 22,228 39.38 0.0109
2025-05-12 2025-03-31 13F ALCOA COM 013872106 522,863 230,992 79.14 15,947 44.63 0.0082
2025-02-12 2024-12-31 13F ALCOA COM 013872106 291,871 -17,030 -5.51 11,027 -7.48 0.0065
2024-11-12 2024-09-30 13F ALCOA COM 013872106 308,901 195,569 172.56 11,917 164.35 0.0069
2024-08-12 2024-06-30 13F ALCOA COM 013872106 113,332 -216,283 -65.62 4,508 -59.52 0.0029
2024-05-10 2024-03-31 13F ALCOA COM 013872106 329,615 159,359 93.60 11,138 92.42 0.0073
2024-02-09 2023-12-31 13F ALCOA COM 013872106 170,256 -35,946 -17.43 5,789 -3.40 0.0041
2023-12-06 2023-09-30 13F/A-1 ALCOA COM 013872106 206,202 -90,275 -30.45 5,992 -40.43 0.0045
2023-11-09 2023-09-30 13F ALCOA COM 013872106 206,202 -90,275 5,992 0.0045
2023-08-10 2023-06-30 13F ALCOA COM 013872106 296,477 -26,171 -8.11 10,059 -26.74 0.0066
2023-05-11 2023-03-31 13F ALCOA COM 013872106 322,648 -126,280 -28.13 13,732 -32.73 0.0096
2023-02-09 2022-12-31 13F ALCOA COM 013872106 448,928 -95,956 -17.61 20,413 11.29 0.0163
2022-11-10 2022-09-30 13F ALCOA COM 013872106 544,884 -183,625 -25.21 18,341 -44.77 0.0131
2022-08-10 2022-06-30 13F ALCOA COM 013872106 728,509 140,212 23.83 33,206 -37.31 0.0247
2022-05-12 2022-03-31 13F ALCOA COM 013872106 588,297 -138,266 -19.03 52,965 22.35 0.0322
2022-02-10 2021-12-31 13F ALCOA COM 013872106 726,563 395,350 119.36 43,288 167.05 0.0232
2021-11-10 2021-09-30 13F ALCOA COM 013872106 331,213 -982,312 -74.78 16,210 -66.50 0.0096
2021-08-10 2021-06-30 13F ALCOA COM 013872106 1,313,525 460,620 54.01 48,390 74.62 0.0291
2021-05-13 2021-03-31 13F ALCOA COM 013872106 852,905 387,538 83.28 27,711 158.35 0.0179
2021-02-11 2020-12-31 13F ALCOA COM 013872106 465,367 -75,150 -13.90 10,726 70.61 0.0063
2020-11-12 2020-09-30 13F ALCOA COM 013872106 540,517 103,828 23.78 6,287 28.10 0.0041
2020-08-12 2020-06-30 13F ALCOA COM 013872106 436,689 -14,474 -3.21 4,908 76.55 0.0038
2020-05-12 2020-03-31 13F ALCOA COM 013872106 451,163 -255,594 -36.16 2,780 -81.71 0.0025
2020-02-12 2019-12-31 13F ALCOA COM 013872106 706,757 166,605 30.84 15,202 40.21 0.0110
2019-11-08 2019-09-30 13F ALCOA COM 013872106 540,152 -445,585 -45.20 10,842 -53.01 0.0086
2019-08-12 2019-06-30 13F ALCOA COM 013872106 985,737 653,908 197.06 23,075 146.92 0.0186
2019-05-13 2019-03-31 13F ALCOA COM 013872106 331,829 -28,104 -7.81 9,345 -2.32 0.0090
2019-02-12 2018-12-31 13F ALCOA COM 013872106 359,933 -56,392 -13.55 9,567 -43.12 0.0097
2018-11-13 2018-09-30 13F ALCOA COM 013872106 416,325 90,887 27.93 16,820 10.24 0.0150
2018-08-10 2018-06-30 13F ALCOA COM 013872106 325,438 97,012 42.47 15,258 48.55 0.0140
2018-05-11 2018-03-31 13F ALCOA COM 013872106 228,426 137,036 149.95 10,271 108.63 0.0085
2018-02-12 2017-12-31 13F ALCOA COM 013872106 91,390 -36,166 -28.35 4,923 -17.20 0.0039
2017-11-13 2017-09-30 13F ALCOA COM 013872106 127,556 -35,854 -21.94 5,946 11.45 0.0049
2017-08-11 2017-06-30 13F ALCOA COM 013872106 163,410 -143,593 -46.77 5,335 -49.48 0.0048
2017-05-12 2017-03-31 13F ALCOA COM 013872106 307,003 281,305 1,094.66 10,561 1,364.77 0.0094
2017-02-10 2016-12-31 13F ALCOA COM 013872106 25,698 19,256 298.91 721 241.71 0.0006
2016-11-10 2016-09-30 13F ALCOA DEP SHS 1/10TH 013817309 6,442 5,222 428.03 211 427.50 0.0002
2016-08-12 2016-06-30 13F ALCOA DEP SHS 1/10TH 013817309 1,220 0 0.00 40 0.00 0.0000
2016-05-13 2016-03-31 13F ALCOA DEP SHS 1/10TH 013817309 1,220 -84,083 -98.57 40 -98.59 0.0000
2016-02-12 2015-12-31 13F ALCOA DEP SHS 1/10TH 013817309 85,303 83,939 6,153.89 2,842 6,215.56 0.0028
2015-11-13 2015-09-30 13F ALCOA DEP SHS 1/10TH 013817309 1,364 464 51.56 45 25.00 0.0000
2015-08-13 2015-06-30 13F ALCOA DEP SHS 1/10TH 013817309 900 -1,800 -66.67 36 -69.49 0.0000
2015-05-14 2015-03-31 13F ALCOA DEP SHS 1/10TH 013817309 2,700 2,700 0.00 118 0.0001
2015-02-17 2014-12-31 13F ALCOA DEP SHS 1/10TH 013817309 0 -116,600 -100.00 0 -100.00
2014-11-14 2014-09-30 13F ALCOA DEP SHS 1/10TH 013817309 116,600 116,600 5,818 0.0051
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
(%)
2026-05-11 2026-03-31 13F ALCOA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F ALCOA COM Call 550,000 266.67 29,227 492.48 n/a n/a n/a
2025-11-10 2025-09-30 13F ALCOA COM Call 150,000 -54.55 4,934 -49.34 n/a n/a n/a
2025-08-11 2025-06-30 13F ALCOA COM Call 330,000 32.00 9,738 27.71 n/a n/a n/a
2025-05-12 2025-03-31 13F ALCOA COM Call 250,000 -43.03 7,625 -54.00 n/a n/a n/a
2025-02-12 2024-12-31 13F ALCOA COM Call 438,800 11.34 16,578 9.03 n/a n/a n/a
2024-11-12 2024-09-30 13F ALCOA COM Call 394,100 3,418.75 15,204 3,316.63 n/a n/a n/a
2024-08-12 2024-06-30 13F ALCOA COM Call 11,200 446 n/a n/a n/a
2023-05-11 2023-03-31 13F ALCOA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2023-02-09 2022-12-31 13F ALCOA COM Call 800,000 764.86 36,376 1,068.14 n/a n/a n/a
2022-11-10 2022-09-30 13F ALCOA COM Call 92,500 3,114 n/a n/a n/a
2022-08-10 2022-06-30 13F ALCOA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2022-05-12 2022-03-31 13F ALCOA COM Call 104,800 -78.92 9,435 -68.14 n/a n/a n/a
2022-02-10 2021-12-31 13F ALCOA COM Call 497,100 -35.88 29,617 -21.94 n/a n/a n/a
2021-11-10 2021-09-30 13F ALCOA COM Call 775,300 37,943 n/a n/a n/a
2021-08-10 2021-06-30 13F ALCOA COM Call 0 -100.00 0 -100.00 n/a n/a n/a
2021-05-13 2021-03-31 13F ALCOA COM Call 100,000 -65.59 3,249 -51.50 n/a n/a n/a
2021-02-11 2020-12-31 13F ALCOA COM Call 290,600 42.59 6,699 182.66 n/a n/a n/a
2020-11-12 2020-09-30 13F ALCOA COM Call 203,800 -30.59 2,370 -28.18 n/a n/a n/a
2020-08-12 2020-06-30 13F ALCOA COM Call 293,600 12.02 3,300 104.33 n/a n/a n/a
2020-05-12 2020-03-31 13F ALCOA COM Call 262,100 33.32 1,615 -61.81 n/a n/a n/a
2020-02-12 2019-12-31 13F ALCOA COM Call 196,600 -76.39 4,229 -74.69 n/a n/a n/a
2019-11-08 2019-09-30 13F ALCOA COM Call 832,700 30.27 16,712 11.68 n/a n/a n/a
2019-08-12 2019-06-30 13F ALCOA COM Call 639,200 254.72 14,964 194.86 n/a n/a n/a
2019-05-13 2019-03-31 13F ALCOA COM Call 180,200 71.95 5,075 82.16 n/a n/a n/a
2019-02-12 2018-12-31 13F ALCOA COM Call 104,800 -59.85 2,786 -73.58 n/a n/a n/a
2018-11-13 2018-09-30 13F ALCOA COM Call 261,000 159.96 10,544 124.01 n/a n/a n/a
2018-08-10 2018-06-30 13F ALCOA COM Call 100,400 30.22 4,707 35.80 n/a n/a n/a
2018-05-11 2018-03-31 13F ALCOA COM Call 77,100 -1.66 3,466 -17.93 n/a n/a n/a
2018-02-12 2017-12-31 13F ALCOA COM Call 78,400 -24.47 4,223 -12.75 n/a n/a n/a
2017-11-13 2017-09-30 13F ALCOA COM Call 103,800 -7.98 4,840 31.41 n/a n/a n/a
2017-08-11 2017-06-30 13F ALCOA COM Call 112,800 -88.37 3,683 -88.97 n/a n/a n/a
2017-05-12 2017-03-31 13F ALCOA COM Call 970,300 1,370.15 33,378 1,701.30 n/a n/a n/a
2017-02-10 2016-12-31 13F ALCOA COM Call 66,000 1,853 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
(%)
2026-05-11 2026-03-31 13F ALCOA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2026-02-13 2025-12-31 13F ALCOA COM Put 100,000 5,314 n/a n/a n/a
2025-11-10 2025-09-30 13F ALCOA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2025-08-11 2025-06-30 13F ALCOA COM Put 360,000 -18.88 10,624 -21.51 n/a n/a n/a
2025-05-12 2025-03-31 13F ALCOA COM Put 443,800 -8.27 13,536 -25.95 n/a n/a n/a
2025-02-12 2024-12-31 13F ALCOA COM Put 483,800 -30.97 18,278 -32.41 n/a n/a n/a
2024-11-12 2024-09-30 13F ALCOA COM Put 700,900 231.87 27,041 221.87 n/a n/a n/a
2024-08-12 2024-06-30 13F ALCOA COM Put 211,200 8,402 n/a n/a n/a
2023-02-09 2022-12-31 13F ALCOA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2022-11-10 2022-09-30 13F ALCOA COM Put 142,500 -64.56 4,797 -73.83 n/a n/a n/a
2022-08-10 2022-06-30 13F ALCOA COM Put 402,100 -26.25 18,328 -62.66 n/a n/a n/a
2022-05-12 2022-03-31 13F ALCOA COM Put 545,200 21.34 49,084 83.36 n/a n/a n/a
2022-02-10 2021-12-31 13F ALCOA COM Put 449,300 87.21 26,769 127.90 n/a n/a n/a
2021-11-10 2021-09-30 13F ALCOA COM Put 240,000 11,746 n/a n/a n/a
2021-05-13 2021-03-31 13F ALCOA COM Put 0 -100.00 0 -100.00 n/a n/a n/a
2021-02-11 2020-12-31 13F ALCOA COM Put 210,800 1.49 4,859 101.12 n/a n/a n/a
2020-11-12 2020-09-30 13F ALCOA COM Put 207,700 -21.27 2,416 -18.52 n/a n/a n/a
2020-08-12 2020-06-30 13F ALCOA COM Put 263,800 -19.33 2,965 47.22 n/a n/a n/a
2020-05-12 2020-03-31 13F ALCOA COM Put 327,000 -9.69 2,014 -74.14 n/a n/a n/a
2020-02-12 2019-12-31 13F ALCOA COM Put 362,100 -15.04 7,789 -8.94 n/a n/a n/a
2019-11-08 2019-09-30 13F ALCOA COM Put 426,200 3.50 8,554 -11.27 n/a n/a n/a
2019-08-12 2019-06-30 13F ALCOA COM Put 411,800 148.82 9,640 106.82 n/a n/a n/a
2019-05-13 2019-03-31 13F ALCOA COM Put 165,500 78.15 4,661 88.78 n/a n/a n/a
2019-02-12 2018-12-31 13F ALCOA COM Put 92,900 -37.78 2,469 -59.07 n/a n/a n/a
2018-11-13 2018-09-30 13F ALCOA COM Put 149,300 41.52 6,032 21.96 n/a n/a n/a
2018-08-10 2018-06-30 13F ALCOA COM Put 105,500 9.90 4,946 14.60 n/a n/a n/a
2018-05-11 2018-03-31 13F ALCOA COM Put 96,000 -29.67 4,316 -41.30 n/a n/a n/a
2018-02-12 2017-12-31 13F ALCOA COM Put 136,500 -19.85 7,353 -7.39 n/a n/a n/a
2017-11-13 2017-09-30 13F ALCOA COM Put 170,300 0.59 7,940 43.63 n/a n/a n/a
2017-08-11 2017-06-30 13F ALCOA COM Put 169,300 2.30 5,528 -2.90 n/a n/a n/a
2017-05-12 2017-03-31 13F ALCOA COM Put 165,500 183.88 5,693 247.77 n/a n/a n/a
2017-02-10 2016-12-31 13F ALCOA COM Put 58,300 1,637 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.