Security record · archived quarter
CENX
Century Aluminum Company · Basic Materials · Aluminum
14Tracked holders
—Δ holders
5.53MShares held
$92.60MReported value
+0New positions
−0Exits
All ownership figures: tracked 13F managers only, common-stock positions, reporting period Q2 2024
Ownership over time
| Quarter | Holders | Δ | Shares | Reported value | New | Exits |
|---|---|---|---|---|---|---|
| Q2 2026 | 111 | +6 | 53.91M | $2.48B | +13 | −7 |
| Q1 2026 | 108 | +3 | 48.84M | $2.86B | +8 | −5 |
| Q4 2025 | 104 | +2 | 46.68M | $1.83B | +3 | −1 |
| Q3 2025 | 18 | -2 | 28.46M | $835.48M | — | −2 |
| Q2 2025 | 17 | +1 | 26.82M | $483.25M | +3 | −2 |
| Q1 2025 | 13 | -2 | 9.28M | $172.16M | +1 | −3 |
| Q4 2024 | 15 | -1 | 9.15M | $166.76M | +1 | −2 |
| Q3 2024 | 15 | +1 | 4.94M | $80.16M | +2 | −1 |
| Q2 2024 | 14 | — | 5.53M | $92.60M | — | — |
Who holds it · Q2 2024
| # | Manager | Shares | Δ shares | Value | Their weight | Held | ||
|---|---|---|---|---|---|---|---|---|
| 1 | Fisher Asset Management ✦ | 2.02M | — | $33.88M | 0.0% | n/c | 1 | SEC ↗ |
| 2 | Geode Capital Management ✦ (passive) | 1.27M | — | $21.21M | 0.0% | n/c | 1 | SEC ↗ |
| 3 | Geode Capital Management ✦ (passive) | 1.27M | — | $21.21M | 0.0% | n/c | 1 | SEC ↗ |
| 4 | Two Sigma Investments ✦ | 443.06K | — | $7.42M | 0.0% | n/c | 1 | SEC ↗ |
| 5 | Wellington Management ✦ | 414.76K | — | $6.95M | 0.0% | n/c | 1 | SEC ↗ |
| 6 | Wellington Management ✦ | 414.76K | — | $6.95M | 0.0% | n/c | 1 | SEC ↗ |
| 7 | Wellington Management ✦ | 414.76K | — | $6.95M | 0.0% | n/c | 1 | SEC ↗ |
| 8 | Renaissance Technologies ✦ | 259.30K | — | $4.34M | 0.0% | n/c | 1 | SEC ↗ |
| 9 | Millennium Management ✦ | 244.36K | — | $4.09M | 0.0% | n/c | 1 | SEC ↗ |
| 10 | Norges Bank ✦ (passive) | 168.79K | — | $2.83M | 0.0% | n/c | 1 | SEC ↗ |
| 11 | Arrowstreet Capital ✦ | 164.51K | — | $2.75M | 0.0% | n/c | 1 | SEC ↗ |
| 12 | Citadel Advisors ✦ | 146.53K | — | $2.45M | 0.0% | n/c | 1 | SEC ↗ |
| 13 | Citadel Advisors ✦ | 146.53K | — | $2.45M | 0.0% | n/c | 1 | SEC ↗ |
| 14 | AQR Capital Management ✦ | 111.30K | — | $1.86M | 0.0% | n/c | 1 | SEC ↗ |
| 15 | AQR Capital Management ✦ | 111.30K | — | $1.86M | 0.0% | n/c | 1 | SEC ↗ |
| 16 | AQR Capital Management ✦ | 111.30K | — | $1.86M | 0.0% | n/c | 1 | SEC ↗ |
| 17 | Marshall Wace ✦ | 104.84K | — | $1.76M | 0.0% | n/c | 1 | SEC ↗ |
| 18 | Bridgewater Associates ✦ | 74.50K | — | $1.25M | 0.0% | n/c | 1 | SEC ↗ |
| 19 | D. E. Shaw & Co. ✦ | 73.30K | — | $1.23M | 0.0% | n/c | 1 | SEC ↗ |
| 20 | T. Rowe Price ✦ | 33.76K | — | $566,000 | 0.0% | n/c | 1 | SEC ↗ |
“Their weight” = the position's share of that manager's reported 13F equity value — the conviction measure. ✦ = curated manager.
New buyers
| No new tracked buyers this quarter. |
Exited
| No tracked exits this quarter. |
Full-market context: across ALL 13F filers (SEC structured data, Q1 2026): 378 holders, 99.93M shares, $5.79B reported. This is a different, older period than the tracked-universe figures above and the two are never mixed.
Frequently co-owned
What else this security's tracked holders most often hold — shared-ownership counts, not fundamental relationships.
Provenance: Ownership from parsed 13F common-stock positions (tracked universe, comparable sets for changes); insider rows from Forms 3/4/5; stakes from Schedules 13D/13G; every filing links to its original on SEC EDGAR.
Reporting period: Q2 2024 ·
Methodology ·
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