Century Aluminum Company
DE ˙ DB ˙ US1564311082
56,08 € ↓ -1,98 (-3,41%)
2026-05-29
PREZZO DELLE AZIONI
SecurityDE:EY3 / Century Aluminum Company
InstitutionMorgan Stanley
Latest Disclosed Ownership1,585,230 shares
Latest Disclosed Value $ 93,037,241
Morgan Stanley reports 1.48% decrease in ownership of EY3 / Century Aluminum Company

On May 15, 2026 - Morgan Stanley filed a 13F-HR form disclosing ownership of 1,585,230 shares of Century Aluminum Company (DE:EY3) valued at $80,085,820 USD as of March 31, 2026. The entity filed a previous 13F-HR/A on May 27, 2026 disclosing 1,609,093 shares of Century Aluminum Company. This represents a change in shares of -1.48% during the quarter. The current value of the position is $88,899,698 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 CENTURY ALUM COM 156431108 1,585,230 -23,863 -1.48 93,037 47.57 0.0056
2026-05-27 2025-12-31 13F/A-1 CENTURY ALUM COM 156431108 1,609,093 176,730 12.34 63,044 49.91 0.0038
2026-02-13 2025-12-31 13F CENTURY ALUM COM 156431108 1,609,093 176,730 63,044 0.0038
2026-05-27 2025-09-30 13F/A-1 CENTURY ALUM COM 156431108 1,432,363 584,394 68.92 42,054 175.22 0.0025
2025-11-14 2025-09-30 13F CENTURY ALUM COM 156431108 1,432,363 584,394 42,054 0.0025
2025-08-15 2025-06-30 13F CENTURY ALUM COM 156431108 847,969 -287,070 -25.29 15,280 -27.47 0.0010
2025-05-15 2025-03-31 13F CENTURY ALUM COM 156431108 1,135,039 122,721 12.12 21,066 14.22 0.0015
2025-05-15 2024-12-31 13F/A-1 CENTURY ALUM COM 156431108 1,012,318 -504,598 -33.26 18,444 -25.08 0.0013
2025-02-14 2024-12-31 13F CENTURY ALUM COM 156431108 1,012,318 -504,598 18,444 0.0013
2025-05-14 2024-09-30 13F/A-2 CENTURY ALUM COM 156431108 1,516,916 352,027 30.22 24,620 26.18 0.0018
2025-02-14 2024-09-30 13F/A-1 CENTURY ALUM COM 156431108 1,516,916 352,027 24,620 0.0018
2024-11-14 2024-09-30 13F CENTURY ALUM COM 156431108 1,516,916 352,027 24,620 0.0002
2025-05-14 2024-06-30 13F/A-2 CENTURY ALUM COM 156431108 1,164,889 -438,317 -27.34 19,512 -20.92 0.0015
2024-10-17 2024-06-30 13F/A-1 CENTURY ALUM COM 156431108 1,164,889 -438,317 19,512 0.0015
2024-08-14 2024-06-30 13F CENTURY ALUM COM 156431108 1,164,889 -438,317 19,512 0.0015
2024-10-17 2024-03-31 13F/A-2 CENTURY ALUM COM 156431108 1,603,206 318,421 24.78 24,673 58.19 0.0020
2024-08-16 2024-03-31 13F/A-1 CENTURY ALUM COM 156431108 1,603,206 318,421 24,673 0.0002
2024-05-15 2024-03-31 13F CENTURY ALUM COM 156431108 1,603,206 318,421 24,673 0.0020
2024-08-16 2023-12-31 13F/A-1 CENTURY ALUM COM 156431108 1,284,785 270,884 26.72 15,597 113.98 0.0014
2024-02-13 2023-12-31 13F CENTURY ALUM COM 156431108 1,284,785 270,884 15,597 0.0014
2023-11-15 2023-09-30 13F CENTURY ALUM COM 156431108 1,013,901 49,713 5.16 7,290 -13.30 0.0007
2023-08-14 2023-06-30 13F CENTURY ALUM COM 156431108 964,188 -155,605 -13.90 8,408 -24.92 0.0008
2023-05-15 2023-03-31 13F CENTURY ALUM COM 156431108 1,119,793 -123,928 -9.96 11,198 10.07 0.0012
2023-02-14 2022-12-31 13F CENTURY ALUM COM 156431108 1,243,721 -100,545 -7.48 10,174 43.36 0.0012
2022-11-14 2022-09-30 13F CENTURY ALUM COM 156431108 1,344,266 -296,386 -18.07 7,096 -41.31 0.0010
2022-10-27 2022-06-30 13F/A-1 CENTURY ALUM COM 156431108 1,640,652 400,427 32.29 12,091 -62.95 0.0016
2022-08-15 2022-06-30 13F CENTURY ALUM COM 156431108 1,640,652 400,427 12,091 0.0003
2022-10-27 2022-03-31 13F/A-1 CENTURY ALUM COM 156431108 1,240,225 243,653 24.45 32,630 97.71 0.0044
2022-05-13 2022-03-31 13F CENTURY ALUM COM 156431108 1,240,225 243,653 32,630 0.0044
2022-02-14 2021-12-31 13F CENTURY ALUM COM 156431108 996,572 -32,516 -3.16 16,504 19.23 0.0020
2021-11-15 2021-09-30 13F CENTURY ALUM COM 156431108 1,029,088 -870,702 -45.83 13,842 -43.47 0.0019
2021-08-23 2021-06-30 13F/A-1 CENTURY ALUM COM 156431108 1,899,790 1,565,359 468.07 24,488 314.56 0.0032
2021-08-16 2021-06-30 13F CENTURY ALUM COM 156431108 1,899,790 1,565,359 24,488 0.0007
2021-05-17 2021-03-31 13F CENTURY ALUM COM 156431108 334,431 -304,061 -47.62 5,907 -16.12 0.0009
2021-02-16 2020-12-31 13F CENTURY ALUM COM 156431108 638,492 -141,248 -18.11 7,042 26.86 0.0011
2020-11-13 2020-09-30 13F CENTURY ALUM COM 156431108 779,740 235,407 43.25 5,551 43.10 0.0011
2020-08-14 2020-06-30 13F CENTURY ALUM COM 156431108 544,333 -32,359 -5.61 3,879 85.78 0.0009
2020-05-26 2020-03-31 13F/A-1 CENTURY ALUM COM 156431108 576,692 -693,476 -54.60 2,088 -78.12 0.0006
2020-05-15 2020-03-31 13F CENTURY ALUM COM 156431108 576,692 -693,476 2,088 160.4019
2020-02-14 2019-12-31 13F CENTURY ALUM COM 156431108 1,270,168 1,081,647 573.75 9,545 663.60 0.0022
2019-11-14 2019-09-30 13F CENTURY ALUM COM 156431108 188,521 -45,798 -19.55 1,250 -22.79 0.0003
2019-08-14 2019-06-30 13F CENTURY ALUM COM 156431108 234,319 194,749 492.16 1,619 361.25 0.0004
2019-05-15 2019-03-31 13F CENTURY ALUM COM 156431108 39,570 -817,567 -95.38 351 -94.40 0.0001
2019-02-14 2018-12-31 13F CENTURY ALUM COM 156431108 857,137 129,593 17.81 6,266 -28.05 0.0019
2019-04-23 2018-09-30 13F/A-2 CENTURY ALUM COM 156431108 727,544 602,177 480.33 8,709 341.19 0.0022
2018-11-20 2018-09-30 13F/A-1 CENTURY ALUM COM 156431108 727,544 0 8,709 0.0022
2018-11-14 2018-09-30 13F CENTURY ALUM COM 156431108 727,544 602,177 8,709
2019-04-23 2018-06-30 13F/A-1 CENTURY ALUM COM 156431108 125,367 -556,875 -81.62 1,974 -82.51 0.0005
2018-08-14 2018-06-30 13F CENTURY ALUM COM 156431108 125,367 -556,875 1,974
2019-04-23 2018-03-31 13F/A-1 CENTURY ALUM COM 156431108 682,242 -185,153 -21.35 11,285 -33.76 0.0031
2018-05-14 2018-03-31 13F CENTURY ALUM COM 156431108 682,242 -185,153 11,285
2019-04-23 2017-12-31 13F/A-1 CENTURY ALUM COM 156431108 867,395 -709,130 -44.98 17,036 -34.83 0.0047
2018-02-14 2017-12-31 13F CENTURY ALUM COM 156431108 867,395 -709,130 17,036
2017-11-14 2017-09-30 13F CENTURY ALUM COM 156431108 1,576,525 232,878 17.33 26,139 24.86 0.0078
2017-08-11 2017-06-30 13F CENTURY ALUM COM 156431108 1,343,647 241,031 21.86 20,934 49.60 0.0063
2017-05-22 2017-03-31 13F/A-1 CENTURY ALUM COM 156431108 1,102,616 -776,685 -41.33 13,993 -13.02 0.0043
2017-05-12 2017-03-31 13F CENTURY ALUM COM 156431108 1,102,616 13,993
2017-02-22 2016-12-31 13F/A-1 CENTURY ALUM COM 156431108 1,879,301 552,552 41.65 16,087 74.46 0.0053
2017-02-13 2016-12-31 13F CENTURY ALUM COM 156431108 1,879,301 16,087
2016-11-10 2016-09-30 13F CENTURY ALUM COM 156431108 1,326,749 1,065,832 408.49 9,221 458.51 0.0031
2016-08-12 2016-06-30 13F CENTURY ALUM COM 156431108 260,917 -502,280 -65.81 1,651 -69.32 0.0006
2016-05-12 2016-03-31 13F CENTURY ALUM COM 156431108 763,197 729,960 2,196.23 5,382 3,586.30 0.0021
2016-02-09 2015-12-31 13F CENTURY ALUM COM 156431108 33,237 -23,687 -41.61 146 -44.49 0.0001
2016-02-08 2015-09-30 13F/A-1 CENTURY ALUM COM 156431108 56,924 -1,004,042 -94.63 263 -97.62 0.0001
2015-11-09 2015-09-30 13F CENTURY ALUM COM 156431108 56,924 263
2015-08-12 2015-06-30 13F CENTURY ALUM COM 156431108 1,060,966 -15,137 -1.41 11,065 -25.49 0.0038
2015-05-14 2015-03-31 13F CENTURY ALUM COM 156431108 1,076,103 -1,073,318 -49.94 14,850 -71.69 0.0055
2015-02-13 2014-12-31 13F CENTURY ALUM COM 156431108 2,149,421 385,825 21.88 52,446 14.51 0.0192
2014-12-16 2014-09-30 13F/A-1 CENTURY ALUM COM 156431108 1,763,596 1,495,421 557.63 45,800 989.18 0.0176
2014-11-14 2014-09-30 13F CENTURY ALUM COM 156431108 1,763,596 45,800
2014-08-12 2014-06-30 13F CENTURY ALUM COM 156431108 268,175 221,695 476.97 4,205 584.85 0.0072
2014-05-13 2014-03-31 13F CENTURY ALUM COM 156431108 46,480 24,480 111.27 614 166.96 0.0003
2014-02-13 2013-12-31 13F CENTURY ALUM COM 156431108 22,000 -20,029 -47.66 230 -31.75 0.0001
2013-11-13 2013-09-30 13F CENTURY ALUM CO COM ST COM 156431108 42,029 42,029 337 0.0002
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.