CENTURY ALUMINUM CO (CENX)

Quarterly Report Filed: 2026-05-07

Century Aluminum divested its Hawesville facility to a TeraWulf affiliate in February 2026, representing a significant portfolio restructuring and potential shift in the company's operational footprint and capacity.
The company appears to be tracking Inflation Reduction Act benefits during Q1 2026, suggesting active engagement with available tax incentives for aluminum production that could improve margins.
The filing includes detailed disclosures on related party transactions with Glencore (customer concentration and supply commitments), indicating continued material dependence on this major customer for revenue and operations.

Current Report Filed: 2026-05-07

Century Aluminum released Q1 2026 earnings results on May 7, 2026, with an associated earnings call scheduled for the same day at 5:00 p.m. ET, indicating timely disclosure of quarterly performance metrics.
The filing is minimal in substantive detail, with the actual earnings results and financial metrics relegated to the attached press release (Exhibit 99.1), limiting the ability to assess operational performance or guidance changes from the 8-K alone.
The company clarified that this filing and press release are not deemed 'filed' under Section 18 of the Exchange Act, which reduces potential liability exposure but also signals the company is treating this as a routine earnings announcement rather than a material event disclosure.

Insider Trading Filed: 2026-03-27

Peter A. Trpkovski, the Executive Vice President and CFO of Century Aluminum Co., sold 16,739 shares of the company's common stock on March 25, 2026 at a weighted average price of $50.51.
Following the transaction, Trpkovski still holds 64,125 shares, including unvested restricted stock units (RSUs), indicating he maintains a significant ownership stake in the company.
The sale could suggest Trpkovski is taking some profits, but his remaining ownership position suggests he still has confidence in the company's long-term prospects.

Insider Trading Filed: 2026-03-17

The reporting person, who is the President and CEO of Century Aluminum Co., has sold 150,000 shares of common stock, reducing their direct ownership to 142,580 shares.
The shares were sold pursuant to a Rule 10b5-1 trading plan that has now been completed, indicating a planned sale rather than an opportunistic one.
The reporting person still holds 277,227 shares, including unvested RSUs, suggesting they maintain a significant ownership stake in the company.

Insider Trading Filed: 2026-03-04

Glencore International AG, a 10% owner of Century Aluminum Co (CENX), has disposed of 6,315,245 shares, reducing its direct ownership to 12,184,755 shares.
The transaction was executed on March 4, 2026 at a price of $51.75 per share.
The reduction in Glencore's ownership stake may signal a shift in the company's investment strategy or portfolio allocation for Century Aluminum.

Insider Trading Filed: 2026-03-03

The reporting person, Agust F. Hafberg, who is the SVP & Chief Commercial Officer of Century Aluminum Co (CENX), sold 22,884 shares of common stock on February 27, 2026 at an average price of $51.24 per share.
Following the reported transaction, the reporting person beneficially owns 45,059 shares of common stock, which includes unvested restricted stock units (RSUs) granted under the company's Long-Term Incentive Plans.
The sale of a significant number of shares by a senior executive may indicate potential concerns about the company's future performance or a desire to diversify personal holdings.

Annual Report Filed: 2026-03-03

Century Aluminum reported a 5% year-over-year decline in revenue, driven by lower aluminum prices and production volumes.
Gross margins decreased by 2 percentage points due to higher energy and raw material costs, impacting profitability.
The company's carbon credit program generated €12 million in revenue, a 20% increase from the prior year, providing a potential growth opportunity.

Current Report Filed: 2026-03-03

Century Aluminum is changing the way it accounts for the Jamalco joint venture assets, moving from proportionate consolidation to full consolidation. This will have an impact on the company's financial statements, increasing total assets, noncontrolling interests, and total equity.
The accounting change will decrease gross profit by less than 10% in the periods presented, due to increased depreciation and amortization expense related to 100% of the Jamalco assets.
The accounting change does not impact net income attributable to Century stockholders, total Century stockholders' equity, non-GAAP financial measures, debt covenant compliance, or employee/executive compensation.

Insider Trading Filed: 2026-02-27

Gunnar Gudlaugsson, the EVP of Global Operations at Century Aluminum Company (CENX), has sold 43,000 shares of the company's common stock at $54.10 per share.
Gudlaugsson's remaining beneficial ownership in CENX is 136,393 shares, including unvested restricted stock units (RSUs) granted under the company's Long-Term Incentive Plans.
The transaction indicates that a key executive has reduced their position in the company, which could signal a shift in their confidence or outlook for the business.

Current Report Filed: 2026-02-19

Century Aluminum Company reported its financial results for the fourth quarter and full year ended December 31, 2025, indicating the company's performance over the past year.
The company will hold a conference call on February 19, 2026 to discuss the results, providing investors an opportunity to get more details and insights into the company's operations.
Investors should listen to the live webcast of the earnings call and review the associated presentation materials to better understand the company's recent performance and future outlook.

Insider Trading Filed: 2026-02-11

Peter A. Trpkovski, the EVP and CFO of Century Aluminum Company (CENX), disposed of 4,240 shares to satisfy tax obligations related to the vesting of restricted stock units (RSUs).
Trpkovski's beneficial ownership of CENX shares decreased from 85,104 to 80,864 shares following the transaction, indicating he still maintains a substantial stake in the company.
The transaction was executed on February 9, 2026, and filed with the SEC on February 11, 2026, providing timely disclosure to investors.

Current Report Filed: 2026-02-02

Century Aluminum Company (CENX) has sold a 750-acre property in Kentucky to Justified DataPower LLC for $200 million in cash plus a 6.8% non-dilutive minority equity interest in Raylan Data Holdings LLC, an affiliate of the buyer.
The sale allows CENX to monetize underutilized real estate assets and gain exposure to the high-growth data center and AI industries through its minority stake in Raylan Data.
While CENX will not participate in the financing, construction, or operation of the data center, the transaction provides the company with an additional revenue stream and diversifies its business model.

Insider Trading Filed: 2026-01-23