CENTURY ALUMINUM COMPANY (CENX) Institutional Ownership Changes & 13F Activity
CENTURY ALUMINUM COMPANY (CENX). Institutional ownership data tracks hedge funds, asset managers, and other institutional investors based on recent SEC Form 13F filings (Q2 2026). This page analyzes institutional buying and selling activity, new holdings, and sold-out positions in the latest reporting period. Notable filers include Invesco Ltd., Jane Street Group, Llc, Citadel Advisors Llc, Millennium Management Llc, and Goldman Sachs Group Inc.
| Institution | Type | Change in shares | Change Position % | Shares | Reported stock balance | Portfolio quarter | Filing date |
|---|---|---|---|---|---|---|---|
| Manufacturers Life Insurance Company, The | Buy | +18,598 | +66.6% | 46,518 | $2.14M | Q2 2026 | Sep 09, 2026 |
| Integrated Wealth Concepts Llc | Sell | -3,482 | -21.8% | 12,480 | $574.21K | Q2 2026 | Sep 09, 2026 |
| Parkside Financial Bank & Trust | Buy | +2 | +1.9% | 107 | $4.92K | Q2 2026 | Sep 04, 2026 |
| Citadel Advisors Llc | Sell | -1,030,836 | -78.0% | 290,031 | $13.34M | Q2 2026 | Sep 02, 2026 |
| Allianz Asset Management Gmbh | Buy | +45,945 | — | 45,945 | $2.11M | Q2 2026 | Sep 02, 2026 |
| First Eagle U.S. Value | Buy | +199,273 | +122.2% | 362,360 | $16.67M | Q2 2026 | Aug 24, 2026 |
| California State Teachers Retirement System | Buy | +12,883 | +20.1% | 76,827 | $3.53M | Q2 2026 | Aug 24, 2026 |
| Assenagon Asset Management S.A. | Sell | -299,157 | -16.3% | 1,531,167 | $70.45M | Q2 2026 | Aug 21, 2026 |
| Mercer Global Advisors Inc | Sell | -577 | -5.4% | 10,111 | $465.19K | Q2 2026 | Aug 19, 2026 |
| Impala Asset Management Llc | Buy | +60,000 | +6.2% | 1,035,000 | $47.62M | Q2 2026 | Aug 17, 2026 |
| Empowered Funds, Llc | Buy | +39,151 | +569.1% | 46,031 | $2.12M | Q2 2026 | Aug 17, 2026 |
| Jefferies Financial Group Inc. | Buy | +1,982 | +0.4% | 486,175 | $22.37M | Q2 2026 | Aug 17, 2026 |
| Transamerica Financial Advisors, Llc | Buy | +287 | +11.8% | 2,718 | $125.06K | Q2 2026 | Aug 17, 2026 |
| Public Employees Retirement System Of Ohio | Buy | +71 | +94.7% | 146 | $6.72K | Q2 2026 | Aug 17, 2026 |
| Invesco Ltd. | Buy | +2,417,794 | — | 2,417,794 | $111.24M | Q2 2026 | Aug 14, 2026 |
| Jane Street Group, Llc | Sell | -1,239,378 | -93.8% | 81,564 | $3.75M | Q2 2026 | Aug 14, 2026 |
| Millennium Management Llc | Sell | -871,408 | -43.8% | 1,116,217 | $51.36M | Q2 2026 | Aug 14, 2026 |
| Goldman Sachs Group Inc | Buy | +670,128 | +176.7% | 1,049,276 | $48.28M | Q2 2026 | Aug 14, 2026 |
| Balyasny Asset Management L.P. | Buy | +664,535 | +699.0% | 759,603 | $34.95M | Q2 2026 | Aug 14, 2026 |
| Encompass Capital Advisors Llc | Sell | -651,362 | -42.0% | 900,000 | $41.41M | Q2 2026 | Aug 14, 2026 |
| D. E. Shaw & Co., Inc. | Sell | -637,631 | -44.5% | 795,738 | $36.61M | Q2 2026 | Aug 14, 2026 |
| Woodline Partners Lp | Buy | +626,772 | — | 626,772 | $28.84M | Q2 2026 | Aug 14, 2026 |
| Driehaus Capital Management Llc | Buy | +455,982 | — | 455,982 | $20.98M | Q2 2026 | Aug 14, 2026 |
| Sourcerock Group Llc | Sell | -421,164 | -15.7% | 2,266,085 | $104.26M | Q2 2026 | Aug 14, 2026 |
| Canada Pension Plan Investment Board | Buy | +336,900 | +1182.1% | 365,400 | $16.81M | Q2 2026 | Aug 14, 2026 |
| Voloridge Investment Management, Llc | Sell | -327,746 | -45.5% | 392,989 | $18.08M | Q2 2026 | Aug 14, 2026 |
| Point72 Asset Management, L.P. | Sell | -274,896 | -48.3% | 294,555 | $13.55M | Q2 2026 | Aug 14, 2026 |
| Weiss Asset Management Lp | Buy | +269,881 | — | 269,881 | $12.42M | Q2 2026 | Aug 14, 2026 |
| Squarepoint Ops Llc | Buy | +269,112 | +65.6% | 679,205 | $31.25M | Q2 2026 | Aug 14, 2026 |
| Bridgewater Associates, Lp | Sell | -258,589 | -35.3% | 473,928 | $21.81M | Q2 2026 | Aug 14, 2026 |
Frequently asked questions about CENX activity
Which institutional owners are buying CENX?
Institutional owners buying CENX include investors who have either initiated new positions or increased their existing holdings based on recent SEC 13F filings. The activity table above highlights which funds added shares in the latest reporting periods and how their positions changed over time.
What does "buy" mean in CENX activity?
"Buy" means an investor increased their reported position in CENX compared to the prior reporting period. This reflects growing exposure to CENTURY ALUMINUM COMPANY (CENX) rather than necessarily a brand-new position (though new positions also appear as buys when prior quantity was zero).
Is institutional interest in CENX increasing?
Institutional interest in CENX can be assessed by comparing the number of tracked funds adding or increasing positions versus those trimming or exiting across the periods shown. A higher number of additions typically signals increasing participation among large filers, but it should be read alongside position sizes and the full table.
Related CENX Institutional Insights
- CENX Overview
- CENX 13F Institutional Holders
- CENX Top Institutional Shareholders
- Basic Materials Sector Institutional Ownership
- Basic Materials Sector Portfolio Overlap
- Institutional Portfolio Overlap & Shared Holdings
- Most Bought Basic Materials Stocks By Institutional Investors
- Most Sold Basic Materials Stocks By Institutional Investors
- CENX Insider Trading & SEC Form 4 Activity
- CENX Articles
- Top Institutional Investor Stock Rankings