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Of the 15 tracked institutions holding CENX, 8 have a 3-year clone track record — 7 of them beat the S&P. Average holder's clone alpha: +5.7pt. It's a gauge of who owns the name, not just how many.
Among the 15 tracked institutional investors we monitor, CENX (CENTURY ALUM CO) is held with a combined value of $1.63B across 30,025,344 shares. The largest holder is BlackRock, Inc. with a position worth $528.82M. 2 funds opened new positions in the most recent quarter. 11 funds increased their holdings. 2 funds reduced their position.
Total Institutional Value
$1.63B
Total Shares Held
30,025,344
Institutional Holders
15
Ranked by estimated dollars moved (share change × implied price). 13F data lags up to 45 days.
| # | Fund | Value↓ | Portfolio % | Change |
|---|---|---|---|---|
| 1 | BlackRock, Inc. | $528.82M | 0.01% | -5.0% |
| 2 | STATE STREET CORP | $273.94M | 0.01% | +8.7% |
| 3 | VANGUARD GROUP INC | $271.90M | 0.00% | +18.7% |
| 4 | FMR LLC | $156.12M | 0.01% | +30454.3% |
| 5 | MILLENNIUM MANAGEMENT LLC | $116.65M | 0.05% | +38.7% |
| 6 | CITADEL ADVISORS LLC | $77.52M | 0.05% | +89.4% |
| 7 | Fisher Asset Management, LLC | $49.96M | 0.02% | -1.8% |
| 8 | Bridgewater Associates, LP | $42.99M | 0.19% | +169.5% |
| 9 | Point72 Asset Management, L.P. | $33.42M | 0.06% | +230.3% |
| 10 | Kinetic Partners Management, LP | $31.21M | 1.75% | New |
As of the latest SEC 13F filings, BlackRock, Inc. is the largest institutional holder of CENX with a position worth $528.82M, representing 0.01% of their portfolio. In total, 15 institutional investors hold CENX with a combined value of $1.63B.
In the most recent quarter, 2 funds opened a new position in CENX. Additionally, 11 increased their holdings and 2 reduced their positions.
Institutional investors hold $1.63B worth of CENX stock across 15 positions. The largest institutional holder is BlackRock, Inc. with $528.82M in holdings.
A 13F filing is a quarterly report required by the SEC from institutional investment managers with over $100 million in assets. It discloses their holdings in U.S. equities. For CENX, these filings reveal which major funds are accumulating or reducing positions, providing insights into institutional sentiment.
Get notified when hedge funds change their CENX positions.
Alpha = the manager's 3-year clone return minus the S&P 500. A skilled roster is a stronger tell than a crowded one — though even skilled managers' edge doesn't reliably survive the 13F disclosure lag. Why →
Last Close
$46.21
2026-07-24
YTD
+12.9%
53% of 52-week range