Century Aluminum Company
DE ˙ DB ˙ US1564311082
56,08 € ↓ -1,98 (-3,41%)
2026-05-29
AKTIENPREIS
SecurityDE:EY3 / Century Aluminum Company
InstitutionNorthern Trust Corp
Latest Disclosed Ownership548,744 shares
Latest Disclosed Value $ 32,205,785
Northern Trust Corp reports 5.17% increase in ownership of EY3 / Century Aluminum Company

On May 14, 2026 - Northern Trust Corp filed a 13F-HR form disclosing ownership of 548,744 shares of Century Aluminum Company (DE:EY3) valued at $27,722,547 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 17, 2026 disclosing 521,762 shares of Century Aluminum Company. This represents a change in shares of 5.17% during the quarter. The current value of the position is $30,773,564 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.

Upgrade to unlock premium data and export to Excel .

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)
2026-05-14 2026-03-31 13F CENTURY ALUM COM 156431108 548,744 26,982 5.17 32,206 57.54 0.0009
2026-02-17 2025-12-31 13F CENTURY ALUM COM 156431108 521,762 3,600 0.69 20,443 34.37 0.0005
2025-11-14 2025-09-30 13F CENTURY ALUM COM 156431108 518,162 9,798 1.93 15,213 66.08 0.0019
2025-08-13 2025-06-30 13F CENTURY ALUM COM 156431108 508,364 -18,276 -3.47 9,161 -6.28 0.0013
2025-05-13 2025-03-31 13F CENTURY ALUM COM 156431108 526,640 -13,808 -2.55 9,774 -0.73 0.0015
2025-02-14 2024-12-31 13F CENTURY ALUM COM 156431108 540,448 29,400 5.75 9,847 18.71 0.0014
2024-11-13 2024-09-30 13F CENTURY ALUM COM 156431108 511,048 1,577 0.31 8,294 -2.80 0.0014
2024-08-14 2024-06-30 13F CENTURY ALUM COM 156431108 509,471 -17,762 -3.37 8,534 5.16 0.0014
2024-05-14 2024-03-31 13F CENTURY ALUM COM 156431108 527,233 -10,036 -1.87 8,114 24.41 0.0014
2024-02-13 2023-12-31 13F CENTURY ALUM COM 156431108 537,269 4,212 0.79 6,522 70.20 0.0012
2023-11-13 2023-09-30 13F CENTURY ALUM COM 156431108 533,057 -7,724 -1.43 3,833 -18.73 0.0007
2023-08-11 2023-06-30 13F CENTURY ALUM COM 156431108 540,781 8,024 1.51 4,716 -11.49 0.0009
2023-05-15 2023-03-31 13F CENTURY ALUM COM 156431108 532,757 17,301 3.36 5,328 26.35 0.0011
2023-02-13 2022-12-31 13F CENTURY ALUM COM 156431108 515,456 -550 -0.11 4,216 54.77 0.0009
2022-11-14 2022-09-30 13F CENTURY ALUM COM 156431108 516,006 -1,202 -0.23 2,724 -28.52 0.0006
2022-08-12 2022-06-30 13F CENTURY ALUM COM 156431108 517,208 6,348 1.24 3,811 -71.65 0.0008
2022-05-13 2022-03-31 13F CENTURY ALUM COM 156431108 510,860 -12,974 -2.48 13,441 54.96 0.0024
2022-02-08 2021-12-31 13F CENTURY ALUM COM 156431108 523,834 -13,990 -2.60 8,674 19.91 0.0014
2021-11-15 2021-09-30 13F CENTURY ALUM COM 156431108 537,824 -21,334 -3.82 7,234 0.37 0.0013
2021-08-13 2021-06-30 13F CENTURY ALUM COM 156431108 559,158 -12,364 -2.16 7,207 -28.59 0.0013
2021-05-12 2021-03-31 13F CENTURY ALUM COM 156431108 571,522 -18,260 -3.10 10,092 55.14 0.0019
2021-02-11 2020-12-31 13F CENTURY ALUM COM 156431108 589,782 -29,043 -4.69 6,505 47.64 0.0013
2020-11-16 2020-09-30 13F CENTURY ALUM COM 156431108 618,825 -24,644 -3.83 4,406 -3.97 0.0010
2020-08-14 2020-06-30 13F CENTURY ALUM COM 156431108 643,469 -27,643 -4.12 4,588 88.88 0.0011
2020-05-14 2020-03-31 13F CENTURY ALUM COM 156431108 671,112 -20,612 -2.98 2,429 -53.27 0.0007
2020-02-14 2019-12-31 13F CENTURY ALUM COM 156431108 691,724 -8,872 -1.27 5,198 11.83 0.0012
2019-11-13 2019-09-30 13F CENTURY ALUM COM 156431108 700,596 16,463 2.41 4,648 -1.69 0.0011
2019-08-13 2019-06-30 13F CENTURY ALUM COM 156431108 684,133 28,279 4.31 4,728 -18.80 0.0011
2019-05-13 2019-03-31 13F CENTURY ALUM COM 156431108 655,854 2,510 0.38 5,823 21.90 0.0014
2019-02-12 2018-12-31 13F CENTURY ALUM COM 156431108 653,344 -27,323 -4.01 4,777 -41.37 0.0013
2018-11-14 2018-09-30 13F CENTURY ALUM COM 156431108 680,667 -43,039 -5.95 8,148 -28.51 0.0020
2018-09-18 2018-06-30 13F/A-1 CENTURY ALUM COM 156431108 723,706 92,323 14.62 11,398 9.14 0.0029
2018-08-14 2018-06-30 13F CENTURY ALUM COM 156431108 729,429 98,046 11,489
2018-05-09 2018-03-31 13F CENTURY ALUM COM 156431108 631,383 797 0.13 10,443 -15.67 0.0027
2018-02-14 2017-12-31 13F CENTURY ALUM COM 156431108 630,586 -13,798 -2.14 12,384 15.91 0.0031
2017-11-13 2017-09-30 13F CENTURY ALUM COM 156431108 644,384 -8,936 -1.37 10,684 4.97 0.0028
2017-08-11 2017-06-30 13F CENTURY ALUM COM 156431108 653,320 17,207 2.71 10,178 26.07 0.0028
2017-05-12 2017-03-31 13F CENTURY ALUM COM 156431108 636,113 863 0.14 8,073 48.46 0.0023
2017-02-13 2016-12-31 13F CENTURY ALUM COM 156431108 635,250 44,918 7.61 5,438 32.54 0.0017
2016-11-09 2016-09-30 13F CENTURY ALUM COM 156431108 590,332 11,502 1.99 4,103 11.98 0.0013
2016-08-12 2016-06-30 13F CENTURY ALUM COM 156431108 578,830 40,394 7.50 3,664 -3.48 0.0012
2016-08-19 2016-03-31 13F/A-1 CENTURY ALUM COM 156431108 538,436 -115,267 -17.63 3,796 31.44 0.0013
2016-05-13 2016-03-31 13F CENTURY ALUM COM 156431108 538,436 3,796
2016-02-12 2015-12-31 13F Century Alum COMM 156431108 653,703 18,640 2.94 2,888 -1.16 0.0010
2015-11-12 2015-09-30 13F Century Alum COMM 156431108 635,063 -53,662 -7.79 2,922 -59.32 0.0010
2015-08-13 2015-06-30 13F CENTURY ALUM COM 156431108 688,725 123,142 21.77 7,183 -7.97 0.0049
2015-05-14 2015-03-31 13F CENTURY ALUM COM 156431108 565,583 14,867 2.70 7,805 -41.92 0.0023
2015-02-12 2014-12-31 13F CENTURY ALUM COM 156431108 550,716 -22,207 -3.88 13,438 -9.68 0.0041
2014-11-13 2014-09-30 13F CENTURY ALUM COM 156431108 572,923 -31,857 -5.27 14,879 56.90 0.0047
2014-08-14 2014-06-30 13F CENTURY ALUM COM 156431108 604,780 -82,731 -12.03 9,483 4.42 0.0030
2014-05-14 2014-03-31 13F CENTURY ALUM COM 156431108 687,511 -62,422 -8.32 9,082 15.78 0.0029
2014-02-21 2013-12-31 13F/A-1 CENTURY ALUM COM 156431108 749,933 -7,916 -1.04 7,844 28.89 0.0025
2014-02-12 2013-12-31 13F CENTURY ALUM COM 156431108 749,933 7,844
2013-11-13 2013-09-30 13F CENTURY ALUM COM 156431108 757,849 -4,022 -0.53 6,086 -13.92 0.0021
2013-08-09 2013-06-30 13F CENTURY ALUM COM 156431108 761,871 761,871 7,070 0.0026
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.