SCHEDULE: Glencore Trims Century Aluminum Stake to 29.99%

Sentiment:

Shareholder Ownership Update 4 March 2026 4:49 PM

Glencore International AG sold over 6.3 million shares of Century Aluminum, reducing its beneficial ownership to 29.99% while reaffirming confidence in the company's management and outlook.

Worse than expectedGlencore International AG sold 6,315,245 shares, reducing its beneficial ownership percentage. While stated as a monetization, a reduction in a significant shareholder's stake can be perceived negatively by the market.The filing details a long history of significant legal proceedings and penalties against Glencore Group entities, including convictions for FCPA violations, commodity price manipulation, and bribery, resulting in billions of dollars in fines and forfeitures.An ongoing investigation by Jersey's ECCU into Glencore plc's corrupt activities and IPO prospectus accuracy was disclosed in September 2024.

Summary

Glencore International AG, Glencore plc, and Glencore AG (the "Reporting Persons") filed an Amendment No. 30 to Schedule 13D regarding their holdings in Century Aluminum Co.
On March 4, 2026, Glencore International AG sold 6,315,245 shares of Century Aluminum Common Stock at $51.75 per share in a block trade.
Following the sale, Glencore plc and Glencore International AG beneficially own 29,690,702 shares, representing 29.99% of Century Aluminum's outstanding Common Stock.
Glencore AG directly holds 17,505,947 shares, or 17.68% of the outstanding Common Stock.
The Reporting Persons stated they remain confident in Century Aluminum's management and outlook and intend to continue holding Common Stock for investment purposes.
Glencore Group has a history of significant investment in Century Aluminum, including purchasing over 19.6 million common shares, 500,000 preferred shares (converted to 1.39 million common), and 160,000 Series A Preferred Shares (converted to 4.94 million common).
Existing agreements include a Governance Agreement providing Board representation rights (if ownership > 10%), a Registration Rights Agreement, and a Support Agreement granting pro rata rights to maintain equity percentage (if ownership > 10%).
A five-year irrevocable proxy was granted on March 23, 2023, limiting Glencore's voting power to less than 50%.
Glencore International and Glencore AG pledged 39,655,115 shares (now reduced by the sale) to HSBC Bank PLC on December 1, 2023, to secure a revolving loan facility.

Sentiment

Score: 4

Explanation: StockSavvy.ai views this filing with a neutral-to-negative sentiment. While Glencore expresses confidence in Century Aluminum, the reduction in its stake and the extensive history of legal issues for Glencore itself introduce uncertainty and potential overhang for the stock.

Positives

Reporting Persons remain confident in Century Aluminum's management team and outlook.
Reporting Persons intend to continue holding Common Stock for investment purposes.
DOJ announced early conclusion of compliance monitorships for Glencore International AG and Glencore AG in March 2025, indicating improved compliance efforts.
The parallel investigation by the Dutch Prosecution Service against Glencore was dismissed following the resolution of the Swiss investigation.

Negatives

Glencore International AG pled guilty to conspiracy to violate the US Foreign Corrupt Practices Act in May 2022, resulting in $428,521,173 in fines and $272,185,792 in forfeiture and disgorgement.
Glencore AG pled guilty to conspiracy to commit commodity price manipulation in May 2022, resulting in a fine of $341,221,682 and forfeiture of $144,417,203.
Glencore International AG, Glencore AG, and Chemoil Corporation agreed to pay $333,548,040 in civil penalties and disgorgement to the CFTC in May 2022.
Glencore Energy UK Limited pled guilty to five counts of bribery and two counts of failure to prevent bribery under the UK Bribery Act 2010 in June 2022 and was sentenced to pay GBP 280,965,093.
The Swiss Office of the Attorney General found Glencore International criminally liable for failing to prevent bribery by a business partner in 2011, imposing a CHF 2 million fine and a US$150 million compensation claim in August 2024.
Glencore plc was notified in September 2024 of an investigation by Jersey's ECCU regarding corrupt activities and the accuracy of its 2011 IPO prospectus.

Risks

The Reporting Persons may purchase or sell additional shares of Common Stock and other securities of the Issuer, which could impact the stock price.
The Reporting Persons reserve the right to explore or make plans or proposals relating to various strategic transactions or actions concerning the Company.
Glencore Group's ongoing legal and regulatory investigations (e.g., Jersey ECCU) could pose reputational and financial risks to Glencore, which is a major shareholder of Century Aluminum.
The pledge of Century Aluminum shares by Glencore International and Glencore AG to secure a revolving loan facility introduces a potential risk if Glencore defaults on its loan, though the filing does not suggest this is imminent.

Future Outlook

The Reporting Persons remain confident in Century Aluminum's management team and outlook and intend to continue holding Common Stock for investment purposes. They may purchase or sell additional shares and other securities of the Issuer in the future and reserve the right to explore or propose strategic transactions.

Management Comments

"The Reporting Persons remain confident in the management team and outlook of the Company, maintain a position in the Company and intend to continue to hold Common Stock for investment purposes."
"Glencore has cooperated fully with the investigation by the OAG and taken significant measures to enhance its compliance programme, particularly since 2016, both of which were taken into account as mitigating factors in setting the amount of the fine."
"Glencore does not admit the findings of the OAG, but in the interests of resolving this matter has agreed not to appeal the summary penalty order."

Industry Context

StockSavvy.ai notes that Glencore's partial monetization of its Century Aluminum stake, while still maintaining a significant position, reflects a strategic portfolio adjustment by a major diversified natural resources company. The aluminum industry faces fluctuating commodity prices and demand, and Glencore's continued confidence in Century Aluminum suggests a positive long-term view despite the partial divestment. The ongoing legal issues for Glencore itself highlight broader compliance challenges within the global commodities trading sector.

Comparison to Industry Standards

The sale of 6.3 million shares at $51.75 per share represents a significant transaction for Century Aluminum, a mid-cap aluminum producer. This price point can be compared to recent trading ranges of other primary aluminum producers like Alcoa (AA) or Kaiser Aluminum (KALU) to assess market valuation trends, though specific comparable projects or results are not detailed in this filing.
Glencore's beneficial ownership of 29.99% is a substantial minority stake, typical for strategic investors seeking influence without full control, similar to other large commodity traders holding positions in upstream or downstream assets.
The extensive legal penalties and compliance monitorships faced by Glencore (totaling billions across various jurisdictions) are among the largest seen in the commodities sector, reflecting a significant enforcement effort against corruption and market manipulation, setting a high bar for compliance standards across the industry.

Corporate Governance

Change Type	Description	Effective Date	Impact Assessment
Board Representation Rights	The Reporting Persons retain the right to designate a nominee for election to the Board of Directors, subject to nominating committee consent. This right terminates if beneficial ownership falls below 10% for three continuous months.	July 7, 2008 (original agreement)	Maintains significant shareholder influence on board composition, ensuring Glencore's strategic interests are represented as long as their stake remains substantial.
Standstill Obligations	All standstill obligations under the Governance Agreement have expired.	January 7, 2010 (last expiration)	Removes restrictions on Glencore's ability to acquire more shares or engage in certain corporate actions, potentially increasing flexibility for future strategic moves.
Irrevocable Proxy	A new five-year irrevocable proxy was granted to Century Aluminum's Chief Accounting Officer and Treasurer, limiting Glencore's voting power to less than 50% of total shares voted.	March 23, 2023	Ensures Glencore, despite its significant stake, cannot unilaterally control shareholder votes, maintaining a balance of power and preventing a de facto takeover through voting rights.
Equity Maintenance Rights	The Company agreed to give the Reporting Persons the right to maintain their pro rata equity percentage ownership in certain future offerings, provided their beneficial ownership remains above 10% for three continuous months.	May 4, 2009 (original agreement)	Protects Glencore's proportional ownership against dilution from future capital raises, reinforcing its long-term investment strategy.

Legal Proceedings

On May 24, 2022, Glencore International AG pled guilty to one count of conspiracy to violate the US Foreign Corrupt Practices Act, agreeing to $428,521,173 in fines and $272,185,792 in forfeiture and disgorgement, with a three-year independent compliance monitor.
On May 24, 2022, Glencore AG pled guilty to one count of conspiracy to commit commodity price manipulation, agreeing to a fine of $341,221,682 and forfeiture of $144,417,203, with a three-year independent compliance monitor.
In March 2025, the DOJ announced the early conclusion of the monitorships for Glencore International AG and Glencore AG.
On May 24, 2022, Glencore International AG, Glencore AG, and Chemoil Corporation resolved an investigation by the CFTC for civil violations, agreeing to pay $333,548,040 in civil penalties and disgorgement.
On May 24, 2022, Glencore agreed to pay $39,598,367 under a resolution with the Brazilian Federal Prosecutor's Office.
On June 21, 2022, Glencore Energy UK Limited pled guilty to five counts of bribery and two counts of failure to prevent bribery under the UK Bribery Act 2010, and was sentenced on November 3, 2022, to pay GBP 280,965,093.
On August 5, 2024, the Office of the Attorney General of Switzerland closed its criminal investigation against Glencore International, finding it criminally liable for failing to prevent bribery by a business partner in 2011, imposing a CHF 2 million fine and a US$150 million compensation claim. Glencore does not admit the findings but agreed not to appeal.
In September 2024, Glencore plc was notified by Jersey's Economic Crime and Confiscation Unit (ECCU) of an investigation into the company's corrupt activities, related money laundering, and the accuracy of its 2011 IPO prospectus.

Related Party Transactions

Glencore Investment Pty Ltd. (an affiliate of Glencore Group) purchased Series A Preferred Shares from Century Aluminum in July 2008.
Glencore AG and Century Aluminum entered into a Standstill and Governance Agreement in July 2008.
Glencore Investment Pty and Century Aluminum entered into a Registration Rights Agreement in July 2008.
Glencore AG and Century Aluminum entered into a Support Agreement in May 2009.
Glencore AG, Glencore International AG, and Glencore plc granted irrevocable proxies to officers of Century Aluminum in 2017 and 2023.
Glencore International and Glencore AG pledged Century Aluminum shares to HSBC Bank PLC to secure a revolving loan facility for Glencore International, with Glencore plc guaranteeing the obligations.

Stakeholder Impact

Shareholders: The sale of a significant block of shares by a major investor like Glencore could create downward pressure on Century Aluminum's stock price in the short term due to increased supply. However, Glencore's stated confidence in management and intent to remain a long-term investor could mitigate concerns. The ongoing legal issues for Glencore itself could be a concern for shareholders if they impact Glencore's financial stability or reputation, potentially affecting its ability to support Century Aluminum.
Management/Board: Glencore's continued right to a Board nominee ensures its influence on strategic decisions, which could be beneficial for alignment but also potentially lead to differing strategic priorities.
Creditors: The pledge of Century Aluminum shares by Glencore to secure its own revolving loan facility introduces a layer of complexity. While not directly impacting Century Aluminum's credit, it links the value of Century Aluminum's stock to Glencore's financial arrangements.

Next Steps

Reporting Persons may purchase or sell additional shares of Common Stock and other securities of Century Aluminum.
Reporting Persons may formulate plans or proposals for, hold discussions about, and explore transactions or actions related to Century Aluminum.
The 2023 Glencore Irrevocable Proxy will remain in effect for five years from March 23, 2023.
The 2023 Credit Facility secured by pledged shares remains available until terminated by the lender.
Glencore plc is subject to an ongoing investigation by Jersey's ECCU.

Key Dates

Date	Description
April 1996	Company's initial public offering of Common Stock and registration under Section 12 of the Securities Exchange Act of 1934.
April 2001	Reporting Persons purchased 500,000 shares of Cumulative Convertible Preferred Stock from the Company in a private transaction.
May 2004	All 500,000 shares of Cumulative Convertible Preferred Stock were converted into 1,395,089 shares of Common Stock.
May 4, 2009	Company and Glencore AG entered into a Support Agreement regarding an increase in authorized shares of Common Stock.
May 27, 2009	Annual Meeting of Stockholders where Glencore AG agreed to vote for the amended proposal to increase authorized capital.
January 7, 2010	Expiration of certain standstill obligations under the Governance Agreement.
November 4, 2010	Expiration of the Company's agreement to give Reporting Persons the right to maintain their equity percentage ownership in certain debt exchange offers.
September 14, 2017	Glencore AG granted a five-year irrevocable proxy (2017 Glencore Irrevocable Proxy) to vote shares.
September 14, 2022	The 2017 Glencore Irrevocable Proxy expired.
May 24, 2022	Glencore International AG pled guilty to FCPA violations, Glencore AG pled guilty to commodity price manipulation, and Glencore Group resolved CFTC investigation and Brazilian bribery investigation.
June 21, 2022	Glencore Energy UK Limited pled guilty to bribery charges in Southwark Crown Court.
November 3, 2022	Glencore Energy UK Limited was sentenced to pay a financial penalty and costs of GBP 280,965,093.
March 23, 2023	Reporting Persons granted a new five-year irrevocable proxy (2023 Glencore Irrevocable Proxy) to vote shares.
December 1, 2023	Glencore International and Glencore AG pledged 39,655,115 shares of Common Stock to HSBC Bank PLC to secure a revolving loan facility.
January 5, 2024	Amendment No. 27 to Schedule 13D was filed, including the 2023 Glencore Irrevocable Proxy and Security Deeds.
August 5, 2024	Swiss Office of the Attorney General announced the closure of its criminal investigation against Glencore International with a summary penalty order and abandonment order.
September 2024	Glencore plc was notified by Jersey's ECCU of an investigation into corrupt activities and IPO prospectus accuracy.
November 10, 2025	All remaining Series A Preferred Shares held by Glencore AG were automatically converted into 4,948,591 shares of Common Stock.
November 11, 2025	Joint Filing Agreement among Glencore plc, Glencore International AG and Glencore AG relating to the filing of a joint statement on Schedule 13D.
December 31, 2025	Date used for calculating outstanding Common Stock (98,969,007 shares) based on the Company's Form 10-K.
March 3, 2026	Company's Current Report on Form 10-K filed with the SEC.
March 4, 2026	Date of event requiring filing; Glencore International sold 6,315,245 shares of Common Stock in a block trade.

Recommendation

hold

While Glencore's partial divestment might signal a strategic rebalancing, its continued confidence in Century Aluminum's management and outlook, coupled with its intent to remain a long-term investor, suggests underlying stability. The reduction in stake is a monetization event rather than a full exit, and the existing governance agreements still provide Glencore with influence. However, the extensive and ongoing legal issues faced by Glencore itself introduce a degree of uncertainty and potential reputational overhang, warranting a "hold" position until there is clearer resolution on Glencore's legal fronts and Century Aluminum's independent performance trajectory.

Keywords

Century Aluminum, Glencore, Schedule 13D, Share Sale, Beneficial Ownership, Aluminum Industry, SEC Filing, Block Trade, Corporate Governance, Investment, Shareholder, Commodity Trading, FCPA, Bribery, Compliance

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