Institutional Ownership
Century Alum Co
CUSIP 156431108COMCENXQ1 2026
13D / 13G Filings
32
Schedule 13D/13G on record
Beneficial Filers
9
Distinct reporting persons
Largest Stake
43.1%
Max % of class reported
Institutional Holders
373
13F filers (latest quarter)
Beneficial Owners — Schedule 13D / 13G
32 filings · latest Mar 4, 2026
| # | Filed | Reporting Person | Form | % of Class | Shares | Filing |
|---|---|---|---|---|---|---|
| 1 | Mar 4, 2026 | Glencore International AG | 13D/A | 30.0% | — | SEC |
| 2 | Jan 30, 2026 | The Vanguard Group | 13G/A | 7.4% | 6.94M | SEC |
| 3 | Nov 12, 2025 | Glencore International AG | 13D/A | 36.6% | — | SEC |
| 4 | Apr 17, 2025 | Blackrock, Inc. | 13G/A | 9.2% | 8.52M | SEC |
| 5 | Aug 12, 2024 | Glencore International AG | 13D/A | 42.9% | 39.81M | SEC |
| 6 | Jul 10, 2024 | State Street Corp | 13G/A | 4.0% | — | SEC |
| 7 | Feb 13, 2024 | Vanguard Group Inc | 13G/A | 6.3% | 5.78M | SEC |
| 8 | Jan 25, 2024 | State Street Corp | 13G/A | 5.8% | — | SEC |
| 9 | Jan 24, 2024 | Blackrock Inc. | 13G/A | 11.4% | 10.55M | SEC |
| 10 | Jan 5, 2024 | Glencore International AG | 13D/A | 43.1% | 39.78M | SEC |
22 more beneficial-ownership filings on Premium
See the full Schedule 13D/13G history for Century Alum Co.
Unlock full historyTop Institutional Holders (13F)
Largest reported positions · latest quarter
| # | Fund | Shares | Value |
|---|---|---|---|
| 1 | Glencore PLC | 29.69M | $1.74B |
| 2 | Blackrock, Inc. | 9.01M | $528.82M |
| 3 | State Street Corp | 4.67M | $273.94M |
| 4 | Sourcerock Group LLC | 2.69M | $157.71M |
| 5 | Fmr LLC | 2.66M | $156.12M |
| 6 | Dimensional Fund Advisors LP | 2.19M | $128.55M |
| 7 | Invesco Ltd. | 2.08M | $121.87M |
| 8 | Millennium Management LLC | 1.99M | $116.65M |
| 9 | Assenagon Asset Management S.A. | 1.83M | $107.42M |
| 10 | Morgan Stanley | 1.59M | $93.04M |