Welcome to our dedicated page for Century Alum Co SEC filings (Ticker: CENX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
This page provides access to U.S. Securities and Exchange Commission filings for Century Aluminum Company (NASDAQ: CENX), an integrated producer of bauxite, alumina and primary aluminum products headquartered in Chicago, Illinois. Century Aluminum’s common stock is listed on the Nasdaq Global Select Market, and the company files annual, quarterly and current reports that detail its operations, financial condition, capital structure and material events.
Century Aluminum’s SEC filings include annual reports on Form 10-K and quarterly reports on Form 10-Q, which present audited and unaudited financial statements, risk factors, management’s discussion and analysis and other disclosures. Investors can review information on net sales to related parties and other customers, aluminum shipments, cost of goods sold, gross profit, operating income, interest expense, derivative contract results, liquidity and debt obligations. These filings also describe the company’s integrated operations in the United States, Iceland, the Netherlands and Jamaica and its position as the largest producer of primary aluminum in the United States.
Current reports on Form 8-K provide timely updates on specific events. Recent 8-K filings have covered quarterly earnings announcements, an electrical equipment failure at the Grundartangi aluminum smelter in Iceland, the pricing and closing of 6.875% Senior Secured Notes due 2032, and amendments to Century Aluminum’s loan and security agreement. These filings describe the terms of the senior secured notes, related guarantees and collateral, the use of proceeds to refinance existing notes and repay credit facilities, and changes to the company’s credit facility maturity and other terms.
Through this filings page, users can also review exhibits such as indentures, security agreements, collateral agency agreements and credit facility amendments that define Century Aluminum’s debt structure and covenant framework. AI-powered tools on the platform can summarize lengthy documents, highlight key terms in 10-K and 10-Q reports, and explain complex financing arrangements and risk disclosures in plain language, helping users interpret the implications of Century Aluminum’s SEC filings for its CENX stock.
Century Aluminum Company executive vice president of global operations Gunnar Gudlaugsson reported an open-market sale of common stock. On February 25, 2026, he sold 43,000 shares at $54.10 per share. After this transaction, he held 136,393 shares, which the disclosure notes include unvested restricted stock units granted under the company’s long-term incentive plans.
Chalres Schwab Corp submitted a Form 144 notice to sell 66,000 common shares. The filing lists an aggregate amount of
The securities are listed on Nasdaq and the sale is tied to multiple LTIP award tranches dated between
Century Aluminum Company reported fourth quarter 2025 net sales of
For full year 2025, net sales reached
Trpkovski Peter A reported disposition transactions in a Form 4 filing for CENX. The filing lists transactions totaling 4,240 shares at a weighted average price of $54.36 per share. Following the reported transactions, holdings were 80,864 shares.
Century Aluminum Company, through its subsidiary Century Aluminum of Kentucky General Partnership, completed the sale of approximately 750 acres of real property in Hawesville, Kentucky to Justified DataPower LLC. The buyer plans to develop a high-performance computing and artificial intelligence data center on the site.
CAKY received
Century Aluminum and its affiliates will not participate in financing, constructing, managing or operating the data center and have no obligation to contribute additional capital to maintain their minority stake. The agreement includes customary representations, covenants and mutual indemnities, and the company has issued a press release describing the transaction.
The Vanguard Group reports beneficial ownership of 6,939,794 shares of Century Aluminum Co common stock, representing 7.43% of the class as of 12/31/2025. Vanguard has shared voting power over 453,948 shares and shared dispositive power over all 6,939,794 shares, with no sole voting or dispositive power.
The filing notes an internal realignment effective 01/12/2026, after which certain Vanguard subsidiaries or business divisions are expected to report beneficial ownership separately. Vanguard states the securities are held in the ordinary course of business and not for the purpose of changing or influencing control of Century Aluminum.