Form 4: Century Aluminum CEO Sells 150,000 Shares via 10b5-1 Plan

Century Aluminum's President and CEO, Jesse E. Gary, sold 150,000 shares of common stock for approximately $8.32 million under a pre-arranged 10b5-1 trading plan.

Summary

• Jesse E. Gary, President and CEO, and a Director of Century Aluminum Co. (CENX), sold 150,000 shares of common stock.
• The transaction occurred on March 16, 2026.
• The shares were sold at a weighted average price of $55.47 per share, with prices ranging from $54.08 to $56.80.
• The total value of the sale was approximately $8,320,500 (150,000 shares * $55.47/share).
• The sale was executed under a Rule 10b5-1 trading plan adopted on August 20, 2025, which is now complete.
• Following the transaction, Mr. Gary beneficially owns 142,580 shares indirectly through a self-settled, revocable trust and 277,227 shares directly, including unvested Restricted Stock Units (RSUs).

Sentiment

Score: 5

Explanation: StockSavvy.ai views this as a neutral event. While an insider sale can sometimes be perceived negatively, its execution under a pre-arranged 10b5-1 plan mitigates concerns about opportunistic selling based on undisclosed negative information.

Positives

• The sale was conducted under a pre-arranged Rule 10b5-1 trading plan, indicating a planned, non-discretionary transaction rather than an immediate reaction to new information.
• The completion of this specific 10b5-1 plan means no additional sales are expected under this particular plan.

Negatives

• A significant sale by a high-ranking executive, even if pre-planned, can sometimes be perceived negatively by some investors as it reduces insider ownership.

Future Outlook

No forward-looking statements or guidance regarding the company's future performance are provided in this Form 4.

Industry Context

StockSavvy.ai notes that insider sales, particularly by top executives, are common for various personal financial planning reasons, especially when executed under a Rule 10b5-1 plan. Such plans allow insiders to sell shares at pre-determined times or prices to avoid accusations of trading on material non-public information. In the aluminum industry, executive compensation often includes significant equity components, leading to periodic sales for diversification or liquidity.

Comparison to Industry Standards

• This transaction is a standard insider sale under a 10b5-1 plan, a common practice among executives across all industries, including materials and manufacturing sectors like aluminum.
• Executives at peer companies such as Alcoa (AA) or Kaiser Aluminum (KALU) frequently utilize similar plans for managing their equity holdings.
• The specific volume and value of the sale are relative to Mr. Gary's overall compensation and holdings, which would typically be benchmarked against peer company executive compensation packages.

Related Party Transactions

• The sale of 150,000 shares of common stock by Jesse E. Gary, the President and CEO, is a transaction involving a related party.
• Shares held indirectly by Mr. Gary in a self-settled, revocable trust are also considered related party holdings.

Stakeholder Impact

• Shareholders may interpret the sale as a signal, though the 10b5-1 plan context suggests it is for personal financial planning rather than a negative outlook on the company. It slightly reduces insider ownership.
• No direct impact on employees, customers, suppliers, or creditors is mentioned or implied by this filing.

Key Dates

Recommendation

The Form 4 filing details a pre-planned insider sale by the CEO, which is a routine event for executive financial management. It does not provide new information about the company's operational performance, strategic direction, or financial health that would warrant a change in investment thesis. Therefore, a 'hold' recommendation is appropriate, maintaining existing positions based on broader company fundamentals rather than this specific insider transaction.

Keywords

Century Aluminum, CENX, Jesse E. Gary, Insider Sale, Form 4, 10b5-1 Plan, Executive Compensation, Stock Transaction, Director, CEO