Kaiser Aluminum Corporation
DE ˙ DB ˙ US4830077040
158,00 € ↑1,00 (0,64%)
2026-06-05
PREZZO DELLE AZIONI
SecurityDE:KLU1 / Kaiser Aluminum Corporation
InstitutionMorgan Stanley
Latest Disclosed Ownership172,162 shares
Latest Disclosed Value $ 20,747,400
Morgan Stanley reports 18.09% decrease in ownership of KLU1 / Kaiser Aluminum Corporation

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 172,162 shares of Kaiser Aluminum Corporation (DE:KLU1) valued at $17,044,038 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 210,182 shares of Kaiser Aluminum Corporation. This represents a change in shares of -18.09% during the quarter. The current value of the position is $27,201,596 USD.

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 KAISER ALUMINIUM COM PAR $0.01 483007704 172,162 -38,020 -18.09 20,747 -14.06 0.0013
2026-05-27 2025-12-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 210,182 4,619 2.25 24,142 52.20 0.0014
2026-02-13 2025-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 210,182 4,619 24,142 0.0014
2026-05-27 2025-09-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 205,563 23,927 13.17 15,861 9.30 0.0010
2025-11-14 2025-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 205,563 23,927 15,861 0.0010
2025-08-15 2025-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 181,636 26,451 17.04 14,513 54.27 0.0009
2025-05-15 2025-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 155,185 -9,799 -5.94 9,407 -18.86 0.0007
2025-05-15 2024-12-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 164,984 -99,220 -37.55 11,593 -39.49 0.0008
2025-02-14 2024-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 164,984 -99,220 11,593 0.0008
2025-05-14 2024-09-30 13F/A-2 KAISER ALUMINUM COM PAR $0.01 483007704 264,204 49,366 22.98 19,160 1.46 0.0014
2025-02-14 2024-09-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 264,204 49,366 19,160 0.0014
2024-11-14 2024-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 264,204 49,366 19,160 0.0014
2025-05-14 2024-06-30 13F/A-2 KAISER ALUMINUM COM PAR $0.01 483007704 214,838 39,973 22.86 18,884 20.85 0.0015
2024-10-17 2024-06-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 214,838 39,973 18,884 0.0015
2024-08-14 2024-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 214,838 39,973 18,884 0.0015
2024-10-17 2024-03-31 13F/A-2 KAISER ALUMINUM COM PAR $0.01 483007704 174,865 24,444 16.25 15,626 45.93 0.0013
2024-08-16 2024-03-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 174,865 24,444 15,626 0.0013
2024-05-15 2024-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 174,865 24,444 15,626 0.0013
2024-08-16 2023-12-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 150,421 31,018 25.98 10,709 19.16 0.0009
2024-02-13 2023-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 150,421 31,018 10,709 0.0009
2023-11-15 2023-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 119,403 3,114 2.68 8,986 7.86 0.0009
2023-08-14 2023-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 116,289 8,096 7.48 8,331 3.18 0.0008
2023-05-15 2023-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 108,193 -22,159 -17.00 8,075 -18.45 0.0009
2023-02-14 2022-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 130,352 -7,927 -5.73 9,902 16.70 0.0011
2022-11-14 2022-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 138,279 -23,000 -14.26 8,484 -33.49 0.0012
2022-10-27 2022-06-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 161,279 65,634 68.62 12,756 41.64 0.0017
2022-08-15 2022-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 161,279 65,634 12,756 0.0003
2022-10-27 2022-03-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 95,645 9,431 10.94 9,006 11.21 0.0012
2022-05-13 2022-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 95,645 9,431 9,006 0.0012
2022-02-14 2021-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 86,214 -8,617 -9.09 8,098 -21.63 0.0010
2021-11-15 2021-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 94,831 -7,193 -7.05 10,333 -17.98 0.0014
2021-08-23 2021-06-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 102,024 50,805 99.19 12,598 122.54 0.0017
2021-08-16 2021-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 102,024 50,805 12,598 0.0003
2021-05-17 2021-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 51,219 -14,453 -22.01 5,661 -12.84 0.0008
2021-02-16 2020-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 65,672 16,399 33.28 6,495 145.93 0.0010
2020-11-13 2020-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 49,273 -8,071 -14.07 2,641 -37.43 0.0005
2020-08-14 2020-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 57,344 11,564 25.26 4,221 33.07 0.0009
2020-05-26 2020-03-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 45,780 -63,874 -58.25 3,172 -73.91 0.0009
2020-05-15 2020-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 45,780 -63,874 3,172 243.6757
2020-02-14 2019-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 109,654 51,569 88.78 12,159 111.53 0.0028
2019-11-14 2019-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 58,085 -96,590 -62.45 5,748 -61.93 0.0015
2019-08-14 2019-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 154,675 66,352 75.12 15,099 63.21 0.0040
2019-05-15 2019-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 88,323 6,701 8.21 9,251 26.92 0.0026
2019-02-14 2018-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 81,622 19,511 31.41 7,289 7.62 0.0022
2019-04-23 2018-09-30 13F/A-2 KAISER ALUMINUM COM PAR $0.01 483007704 62,111 19,395 45.40 6,773 52.27 0.0017
2018-11-20 2018-09-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 62,111 0 6,773 0.0017
2018-11-14 2018-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 62,111 19,395 6,773
2019-04-23 2018-06-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 42,716 1,644 4.00 4,448 7.34 0.0012
2018-08-14 2018-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 42,716 1,644 4,448
2019-04-23 2018-03-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 41,072 1,220 3.06 4,144 -2.65 0.0012
2018-05-14 2018-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 41,072 1,220 4,144
2019-04-23 2017-12-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 39,852 11,483 40.48 4,257 45.44 0.0012
2018-02-14 2017-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 39,852 11,483 4,257
2017-11-14 2017-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 28,369 7,958 38.99 2,927 61.98 0.0009
2017-08-11 2017-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 20,411 -22,324 -52.24 1,807 -47.09 0.0005
2017-05-22 2017-03-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 42,735 -34,499 -44.67 3,415 -43.08 0.0010
2017-05-12 2017-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 42,735 3,415
2017-02-22 2016-12-31 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 77,234 1,263 1.66 6,000 -8.68 0.0020
2017-02-13 2016-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 77,234 6,000
2016-11-10 2016-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 75,971 -86,590 -53.27 6,570 -55.30 0.0022
2016-08-12 2016-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 162,561 58,212 55.79 14,697 66.59 0.0053
2016-05-12 2016-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 104,349 -27,932 -21.12 8,822 -20.28 0.0034
2016-02-09 2015-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 132,281 25,245 23.59 11,066 28.85 0.0040
2016-02-08 2015-09-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 107,036 10,853 11.28 8,588 7.46 0.0032
2015-11-09 2015-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 107,036 8,588
2015-08-12 2015-06-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 96,183 7,519 8.48 7,992 17.24 0.0028
2015-05-14 2015-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 88,664 45,455 105.20 6,817 120.83 0.0025
2015-02-13 2014-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 43,209 -79,151 -64.69 3,087 -66.90 0.0011
2014-12-16 2014-09-30 13F/A-1 KAISER ALUMINUM COM PAR $0.01 483007704 122,360 -98,185 -44.52 9,325 -40.80 0.0036
2014-11-14 2014-09-30 13F KAISER ALUMINUM COM PAR $0.01 483007704 122,360 9,325
2014-05-13 2014-03-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 220,545 -28,311 -11.38 15,751 -9.89 0.0066
2014-02-13 2013-12-31 13F KAISER ALUMINUM COM PAR $0.01 483007704 248,856 32,387 14.96 17,480 13.33 0.0074
2013-11-13 2013-09-30 13F KAISER ALUM CORP COM ST COM 483007704 216,469 7,077 3.38 15,424 18.92 0.0073
2013-08-08 2013-06-30 13F KAISER ALUM CORP COM ST COM 483007704 209,392 209,392 12,970 0.0065
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.