Century Aluminum Ownership | Who Owns Century Aluminum?
Century Aluminum Ownership Summary
Century Aluminum is owned by 103.25% institutional investors, 39.59% insiders. Glencore is the largest institutional shareholder, holding 42.93% of CENX shares. iShares Core S&P Small-Cap ETF is the top mutual fund, with 3.33% of its assets in Century Aluminum shares.
CENX Ownership Benchmark
| Type | Name | % Inst | % Insiders | % Retail |
|---|---|---|---|---|
| Stock | Century Aluminum | 103.25% | 39.59% | -42.84% |
| Sector | Basic Materials Stocks | 36.45% | 12.62% | 50.92% |
Institutional Shareholders
Top Institutional Shareholders by Total Shares
| Holder | Shares | % Holding | Value |
|---|---|---|---|
| Glencore | 40.06M | 42.93% | $1.18B |
| Blackrock funding, inc. /de | 10.13M | 10.86% | $297.36M |
| Blackrock | 9.80M | 10.57% | $164.13M |
| Vanguard group | 5.85M | 6.27% | $171.62M |
| State street | 4.22M | 4.52% | $123.84M |
| Dimensional fund advisors lp | 3.06M | 3.28% | $89.88M |
| Sourcerock group | 2.64M | 2.83% | $77.52M |
| Mirae asset global etfs | 1.46M | 1.56% | $42.79M |
| Morgan stanley | 1.43M | 1.54% | $42.05M |
| Geode capital management | 1.32M | 1.41% | $38.73M |
Top Institutional Shareholders by % of Total Assets
| Holder | Shares | % Assets | Value |
|---|---|---|---|
| Glencore | 40.06M | 29.67% | $1.18B |
| Impala asset management | 689.00K | 13.71% | $20.23M |
| Mountaineer partners management | 661.04K | 11.29% | $19.41M |
| Sourcerock group | 2.64M | 5.27% | $77.52M |
| Steamboat capital partners | 471.93K | 3.61% | $13.86M |
| Hartree partners, lp | 217.76K | 2.20% | $6.39M |
| Amitell capital pte | 108.00K | 1.93% | $3.17M |
| New century financial group | 33.62K | 1.75% | $987.17K |
| Aldebaran capital | 59.56K | 1.61% | $1.75M |
| Wealth high governance capital ltda | 150.00K | 1.26% | $4.40M |
Top Buyers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Sourcerock group | 2.64M | 5.27% | 1.22M |
| Encompass capital advisors | 811.16K | 0.84% | 706.63K |
| American century companies | 767.69K | 0.01% | 611.76K |
| Morgan stanley | 1.43M | 0.00% | 584.39K |
| State street | 4.22M | 0.00% | 552.27K |
Top Sellers
| Holder | Shares | % Assets | Change |
|---|---|---|---|
| Castle hook partners lp | - | - | -1.51M |
| Wexford capital lp | 206.51K | 0.87% | -1.27M |
| Mirae asset global investments | - | - | -1.18M |
| Woodline partners lp | 220.26K | 0.03% | -1.07M |
| Wellington management group llp | 194.09K | 0.00% | -787.51K |
New Positions
| Holder | Shares | % Assets | Change | Value |
|---|---|---|---|---|
| Jefferies financial group | 213.35K | 0.03% | 213.35K | $6.26B |
| Edgestream partners | 156.87K | 0.13% | 156.87K | $4.61M |
| Invenomic capital management lp | 155.27K | 0.22% | 155.27K | $4.56M |
| Baird financial group | 154.58K | 0.01% | 154.58K | $4.54M |
| Royce & associates lp | 148.46K | 0.04% | 148.46K | $4.36M |
Sold Out
| Holder | Change |
|---|---|
| Ifp advisors | -3.00 |
| Mendota financial group | -7.00 |
| Stephens consulting | -20.00 |
| C m bidwell & associates | -25.00 |
| Innealta capital | -26.00 |
Institutional Ownership Trends
| Date | Holdings | Change % | Shares | Change % | Ownership | Change % | Increased Position | Change % | Decreased Position | Change % |
|---|---|---|---|---|---|---|---|---|---|---|
| Sep 30, 2025 | 268 | 14.53% | 96,331,369 | 4.53% | 103 | 1.06% | 148 | 11.28% | 76 | 11.76% |
| Jun 30, 2025 | 241 | 4.33% | 95,551,797 | 3.33% | 102 | 1.04% | 134 | 9.84% | 71 | -5.33% |
| Mar 31, 2025 | 230 | -6.12% | 92,448,227 | 0.02% | 99 | 1.00% | 120 | -5.51% | 76 | 11.76% |
| Dec 31, 2024 | 145 | -33.18% | 33,081,463 | -39.77% | 35 | 1.02% | 72 | -32.08% | 40 | -43.66% |
| Sep 30, 2024 | 216 | 3.35% | 54,923,585 | -0.44% | 59 | 1.67% | 104 | 1.96% | 71 | 7.58% |
Top Mutual Funds Shareholders
| Holder | Shares | % Holding | Change |
|---|---|---|---|
| iShares Core S&P Small-Cap ETF | 3.11M | 3.33% | - |
| SPDR® S&P Metals and Mining ETF | 1.65M | 1.77% | -5.92K |
| Vanguard Total Stock Mkt Idx Inv | 1.64M | 1.75% | -36.26K |
| Vanguard US Total Market Shares ETF | 1.59M | 1.72% | - |
| Global X US Infrastructure Dev ETF | 1.34M | 1.44% | 737.00 |
| iShares Russell 2000 ETF | 1.27M | 1.36% | - |
| Vanguard Small Cap Index | 1.25M | 1.33% | -7.64K |
| iShares US Infrastructure ETF | 818.96K | 0.88% | - |
| Vanguard Small Cap Growth Index Inv | 698.56K | 0.75% | -9.57K |
| Vanguard Institutional Extnd Mkt Idx Tr | 560.84K | 0.60% | -246.33K |
Recent Insider Transactions
| Date | Name | Role | Activity | Value |
|---|---|---|---|---|
| Nov 10, 2025 | GLENCORE INTERNATIONAL AG | - | Sell | $272.25M |
| Sep 26, 2025 | Hafberg Agust F | SVP & Chief Commercial Officer | Sell | $264.95K |
| Sep 19, 2025 | Calloway Kenneth L | SVP, Human Resources | Sell | $452.38K |
| Aug 12, 2025 | Aboud Matt | SVP, Strategy & Business Dev't | Sell | $279.87K |
| Mar 20, 2025 | Hoffman Robert F | SVP, IT and CAO | Sell | $101.20K |
Insider Transactions Trends
| Date | Buy | Sell |
|---|---|---|
| 2025 Q3 | - | 3 |
| 2025 Q2 | - | - |
| 2025 Q1 | - | 2 |
| 2024 Q4 | - | 3 |
| 2024 Q3 | - | - |
CENX Ownership FAQ
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