Century Aluminum Co
CENX- Exchange
- Nasdaq
- Industry
- Primary Production of Aluminum
- SEC CIK
- 0000949157
No open-market purchases or sales by Century Aluminum Co insiders were filed in the last 90 days; 420 institutions reported holding it in 13F filings for Q2 2026, worth $4.79B in total; no superinvestor holds it.
Key figures
- Market capClose on Nov 13, 2026
- $3.37B
- Insider buysOpen market, last 90 days
- 0
- Insider sellsOpen market, last 90 days
- 0
- 13F holdersQ2 2026, +34 vs. previous quarter
- 420
- 13F valueReported value at the end of Q2 2026
- $4.79B
- Superinvestors holdingAt the end of Q2 2026
- 0
Price chart
Financials
See financial statementsFrom SEC filings, in USD.
- Revenue, FY2025
- $2.53B
- +13.9% year over year
- Net income, FY2025
- $41.8M
- −87.6% year over year
- Free cash flow, FY2025
- $84.8M
- No comparable prior period
- Revenue, Q3 FY2026
- $961.2M
- +52.0% year over year
Revenue flow, FY2025
Green is profit; orange is costs, expenses and taxes. Percentages are shares of revenue.
Short interest
See short dataFrom FINRA, settlement date Oct 30, 2026.
- Short interest
- 9.20M
- Shares sold short
- Change
- −228.3K
- −2.4% vs. previous
- Days to cover
- 4.02
- At average daily volume
Superinvestors holding CENX, Q2 2026
Go to the superinvestors tabNo superinvestor reported holding CENX at the end of Q2 2026.
Latest insider trades
See all insider tradesOpen-market purchases and sales by Century Aluminum Co insiders from Form 4, newest first.
| Filed (ET) | Trade date | Filing delay | Insider | Transaction | Shares | Avg price | Value | Holding change | Flags |
|---|---|---|---|---|---|---|---|---|---|
| Mar 27, 2026 (view filing) | Mar 25 | 2 days | Trpkovski Peter AEVP, CFO | SSale | −16.7K | $50.51 | −$845.5K | −20.7%64.1K after | |
| Mar 17, 2026 (view filing) | Mar 16 | 1 day | Gary Jesse EPresident and CEO | SSale | −150.0K | $55.47 | −$8.32M | −51.3%142.6K after | 10b5-1 |
| Mar 13, 2026 (view filing) | Mar 12 | 1 day | Calloway Kenneth LSVP, Human Resources | SSale | −18.0K | $58.00 | −$1.04M | −42.0%24.9K after | |
| Mar 13, 2026 (view filing) | Mar 11 | 2 days | Hoffman Robert FSVP, IT and CAO | SSale | −10.5K | $56.51 | −$595.0K | −15.7%56.6K after | |
| Mar 6, 2026 (view filing) | Mar 4 | 2 days | Hoffman Robert FSVP, IT and CAO | SSale | −10.0K | $56.33 | −$563.3K | −13.0%67.2K after | |
| Mar 4, 2026 (view filing)4:53 PM ET | Mar 4 | Same day | Glencore International AG and 2 others10% Owner | SSale | −6.32M | $51.75 | −$326.8M | −34.1%12.2M after | |
| Mar 4, 2026 (view filing) | Mar 2-3 | 2 days | Aboud MattSVP, Strategy & Business Dev't | SSale | −15.1K | $52.53 | −$793.1K | −18.9%64.8K after | 2 lots |
| Mar 3, 2026 (view filing) | Feb 27 | 4 days | Hafberg Agust FSVP & Chief Commercial Officer | SSale | −22.9K | $51.24 | −$1.17M | −33.7%45.1K after | |
| Feb 27, 2026 (view filing) | Feb 25 | 2 days | Gudlaugsson GunnarEVP - Global Operations | SSale | −43.0K | $54.10 | −$2.33M | −24.0%136.4K after | |
| Feb 25, 2026 (view filing) | Feb 23 | 2 days | DeZee JohnEVP, GC and Secretary | SSale | −66.0K | $50.72 | −$3.35M | −40.3%97.6K after |
Top 10 13F holders, Q2 2026
See all 420 holdersThe largest institutional positions in Century Aluminum Co at the end of Q2 2026; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Glencore plc | 29,690,702 | $1.37B | 28.07% | 00.0% | Unchanged |
| BlackRock, Inc. | 10,304,905 | $474.1M | 0.01% | +1,294,526+14.4% | Added |
| State Street Corp | 5,542,720 | $255.0M | 0.01% | +875,180+18.8% | Added |
| Vanguard Portfolio Management LLC | 4,773,720 | $219.6M | 0.01% | +532,163+12.5% | Added |
| Vanguard Capital Management LLC | 2,972,532 | $136.8M | 0.00% | +386,425+14.9% | Added |
| Invesco Ltd. | 2,417,794 | $111.2M | 0.01% | +341,266+16.4% | Added |
| Sourcerock Group LLC | 2,266,085 | $104.3M | 5.42% | −421,164−15.7% | Reduced |
| Dimensional Fund Advisors LP | 2,211,502 | $101.8M | 0.02% | +20,580+0.9% | Added |
| FMR LLC | 1,960,353 | $90.2M | 0.00% | −699,701−26.3% | Reduced |
| Geode Capital Management, LLC | 1,846,800 | $85.0M | 0.00% | +306,588+19.9% | Added |
Holders of 5% or more of CENX
See all 3 holders and filingsHolders whose latest Schedule 13D or 13G filing reports 5% or more of Century Aluminum Co.
| Holder | Latest form | Stake | Change | First filed | Latest filing | Filing |
|---|---|---|---|---|---|---|
| Glencore International AG | 13D/A | 29.99%29.7M shares | −6.61 ppfrom 36.60% | Dec 16, 20225 filings | Mar 4, 2026 | SEC |
| BlackRock, Inc. | 13G/A | 10.50%10.4M shares | +1.00 ppfrom 9.50% | Apr 17, 20254 filings | Oct 5, 2026 | SEC |
| State Street Corp | 13G | 5.60%5.54M shares | – | Feb 5, 20217 filings | Aug 7, 2026 | SEC |