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.
Century Aluminum’s margins swing with every megawatt-hour and LME tick, so a single footnote in a 10-K can move the story. Yet those power-contract details sit deep in hundreds of pages of technical disclosures. If you’ve ever asked, “How do I find Century Aluminum’s electricity cost breakdown in its annual report?” you know the challenge.
Stock Titan’s AI cuts through that complexity. Our platform reads each new Century Aluminum quarterly earnings report 10-Q filing the moment it hits EDGAR, flags revisions to production guidance, and surfaces key tables in plain English. Need real-time Century Aluminum insider trading Form 4 transactions? We alert you within minutes, complete with AI-generated context so you see whether the CEO’s purchase overlaps a plant restart.
Every filing type is covered:
- 10-K: power-supply contracts, alumina pricing clauses, and pension obligations—Century Aluminum annual report 10-K simplified
- 10-Q: quarter-over-quarter shipment volumes and regional premium trends—Century Aluminum earnings report filing analysis
- 8-K: smelter curtailments or force-majeure updates—Century Aluminum 8-K material events explained
- DEF 14A: Century Aluminum proxy statement executive compensation with AI highlighting incentive pay tied to LME prices
- Form 4: Century Aluminum executive stock transactions Form 4 streamed in real time
Stop searching PDF after PDF. With our AI-powered summaries, you’ll understand Century Aluminum SEC filings explained simply, compare smelter economics, and monitor Century Aluminum Form 4 insider transactions real-time—all in one place.
Glencore entities reported Section 16 activity in Century Aluminum (CENX). On 09/30/2025 Glencore AG converted 28.48 shares of Series A Convertible Preferred Stock into 2,848 shares of Common Stock. The filing also reports a disposition of 27,500,000 shares of Common Stock. Following the reported transactions, the filing shows 12,557,356 shares beneficially owned on an indirect basis. The converted preferred shares are held by Glencore AG, which is a direct wholly-owned subsidiary of Glencore International AG; Glencore plc may be deemed an indirect owner of those holdings.
Agust F. Hafberg, SVP & Chief Commercial Officer of Century Aluminum Co. (CENX), reported a sale of 9,493 shares of common stock on 09/26/2025 at a price of $27.91 per share. After the sale, the filing shows 55,260 shares beneficially owned in a direct capacity, and the reported holdings include unvested restricted stock units granted under the companys Long-Term Incentive Plans. The Form 4 was executed by attorney-in-fact Paul Sharobeem and filed on 09/30/2025. No derivative transactions are reported.
Century Aluminum Co (CENX) filed a Form 144 notifying a proposed sale of 9,493 shares of common stock, with an aggregate market value of $249,950.69, to be executed on or about 09/25/2025 through Charles Schwab & Co. The shares were acquired as a restricted stock grant on 12/31/2024 in payment for services. There were 93,339,121 shares outstanding reported on the form, so the sale represents approximately 0.0102% of outstanding shares. The filer states no material nonpublic information is known.
Kenneth L. Calloway, Senior Vice President, Human Resources of Century Aluminum Company (CENX), reported a sale of company stock on 09/19/2025. The Form 4 shows a disposition of 16,450 shares at a price of $27.50 per share. After the reported transaction, Calloway beneficially owned 28,706 shares, an amount the filing notes includes unvested restricted stock units granted under the issuer's long-term incentive plans. The filing was signed by an attorney-in-fact on 09/23/2025 and is submitted pursuant to Section 16 reporting requirements.
CENTURY ALUMINUM CO (CENX) filed a Form 144 to report a proposed sale of 16,450 shares of common stock through Charles Schwab & Co., scheduled approximately for 09/15/2025. The filing shows an aggregate market value of $433,457.50 and states there are 93,339,121 shares outstanding. The shares were acquired on 12/30/2022 as restricted stock grants from the issuer and were issued for services rendered. The filer certifies they are not aware of undisclosed material adverse information.
Matt Aboud, Senior Vice President of Strategy & Business Development at Century Aluminum Co. (CENX), reported a sale of 12,027 shares of the issuer's common stock on 08/12/2025 at a reported price of $23.27 per share. After the transaction, the reporting person beneficially owned 62,589 shares in total. The filing notes that the post-transaction balance includes unvested RSUs granted under the company’s long-term incentive plans. The transaction was reported on a Form 4 as required for officers and other insiders.
Century Aluminum Co (CENX) filed a Form 144 notifying a proposed sale of 12,027 common shares through Charles Schwab with an aggregate market value of $277,102.08. The notice lists 93,339,121 shares outstanding and an approximate sale date of 08/12/2025 on NASDAQ.
The shares were acquired via restricted stock unit vesting: 8,956 shares on 12/31/2021 and 3,071 shares on 12/31/2024. The filer reports no securities sold during the past three months and attests there is no undisclosed material adverse information.
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