Welcome to our dedicated page for CENTURY ALUMINUM 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 Co. filings document the regulatory record of a Nasdaq-listed primary aluminum producer, including earnings-related Form 8-K reports, annual meeting proxy materials and material-event disclosures. The filings cover operating results, aluminum shipments, liquidity, non-GAAP measures, common stock registration details and governance matters presented to shareholders.
Recent disclosures also address accounting treatment for the Jamalco Production Assets, related non-reliance and late-filing notices, and material agreements involving subsidiary asset sales. The filing record ties these items to Century's aluminum operations, consolidation policies, board oversight, capital structure and public-company reporting obligations.
State Street Corporation reported beneficial ownership of 5,542,720 shares of CENTURY common stock (CUSIP 156431108) as of June 30, 2026, representing 5.6% of the class.
All voting power and dispositive power are held on a shared basis through investment adviser subsidiaries, including SSGA Funds Management, Inc., State Street Global Advisors Europe Limited, State Street Global Advisors Limited, State Street Global Advisors Trust Company, and State Street Global Advisors, Ltd. State Street reports no sole voting or dispositive power and indicates that no group filing or ownership on behalf of another person over 5% applies.
Century Aluminum Company reported Q2 2026 net sales of $752.1 million and net income of $243.8 million, a strong improvement from a loss in the prior-year quarter. Gross profit rose to $227.9 million from $33.6 million, and diluted EPS was $2.39 versus a loss of $0.05.
For the first six months of 2026, net sales were $1.40 billion and net income was $570.8 million, with diluted EPS of $5.62. Results reflect a $287.9 million gain on the sale of the Hawesville facility and a $73.1 million gain on insurance proceeds related to transformer failures at Grundartangi, as well as $51.3 million of cost reductions from Section 45X production tax credits. Cash and cash equivalents increased to $343.4 million, plus $46.3 million of restricted cash, while total debt stood at $480.0 million. Shareholders’ equity rose to $1.40 billion, helped by the period’s profitability. Glencore owned 30.0% of outstanding common stock and accounted for about 45–59% of recent sales. Comparative 2025 figures were restated for full consolidation of the Jamalco joint venture without changing net income attributable to Century stockholders.
Century Aluminum Company reported strong second quarter 2026 results for the quarter ended June 30, 2026. Net sales were $752.1 million, an increase of $102.9 million sequentially, driven by higher realized metal prices and aluminum shipments rising to 130,632 tonnes following the Mt. Holly expansion and the restart of Line 2 at Grundartangi.
Net income attributable to Century was $249.3 million, down $88.2 million sequentially due mainly to a prior-quarter $287.9 million gain on the sale of Hawesville. After adjusting for one-time and exceptional items, adjusted net income attributable to Century rose to $257.3 million, an $86.6 million sequential increase, and adjusted EBITDA attributable to Century grew by $95.5 million to $326.9 million, reflecting favorable metal and power prices and improved operating performance.
Liquidity at June 30, 2026 was $784.9 million, including cash and cash equivalents of $343.4 million, restricted cash of $44.8 million and $396.7 million of borrowing availability; by the end of July, cash exceeded total debt. Business highlights included completing the restart of the last 90 pots at Mt. Holly, returning Grundartangi Line 2 to near full production, and receiving a $94.3 million Section 45X refund in July. For the third quarter of 2026, the company expects adjusted EBITDA attributable to Century between $325 million and $345 million.
BlackRock, Inc. filed an amended ownership report on Century Co. common stock. BlackRock reports beneficial ownership of 9,417,581 shares of Century Co. common stock, representing 9.5% of the class. Of these, 9,304,596 shares carry sole voting power and all 9,417,581 shares are subject to sole dispositive power, with no shared voting or dispositive power reported.
The filing states this position reflects securities beneficially owned, or deemed beneficially owned, by certain BlackRock business units, excluding other units whose holdings are disaggregated under SEC guidance. Various underlying clients have rights to dividends and sale proceeds in these shares, but no single client has more than five percent of Century Co.’s outstanding common stock.
Berntzen Jarl reported acquisition or exercise transactions in this Form 4 filing.
Century Aluminum Co director Jarl Berntzen received an annual equity award of 2,172 shares of common stock as restricted stock units (RSUs). The RSUs vest in full on the earlier of the 12-month anniversary of the grant date, the company’s next regular annual meeting of stockholders, or certain other events defined in the award terms. After this grant, Berntzen directly holds 211,123 shares of Century Aluminum common stock, which includes shares issuable from vested RSUs whose settlement has been deferred under a prior annual deferral election.
Century Aluminum director Errol Glasser reported receiving 2,172 shares of Common Stock as a compensation grant. The filing explains this was an annual award of restricted stock units that fully vested on the grant date rather than an open-market purchase.
After this award, Glasser holds 120,869 shares of Century Aluminum stock directly. This total includes shares issuable from vested RSUs whose settlement has been deferred under an earlier deferral election, meaning some vested units will be converted into shares at a later time instead of immediately.
Century Aluminum director Andrew G. Michelmore reported routine equity compensation activity involving company stock. He received a grant of 2,172 shares of Common Stock as an annual award of restricted stock units, with all RSUs vesting on the grant date. To satisfy associated tax obligations upon vesting, 652 shares were withheld by the company at a price of $54.55 per share. After these transactions, Michelmore directly holds 90,609 shares of Century Aluminum common stock.
Bush Jennifer Mary reported acquisition or exercise transactions in this Form 4 filing.
Century Aluminum director Jennifer Mary Bush received an equity award in the form of restricted stock units. She was granted 2,172 shares of common stock on a grant/award basis at no cash price, as part of her annual compensation.
The RSUs vest in full on the earlier of the 12-month anniversary of the grant date, the company’s next regular annual meeting of stockholders, or certain other events described in the award terms. After this grant, she holds 49,044 shares of common stock directly, including shares issuable from vested RSUs whose settlement she has elected to defer.
Olivier Tamla A reported acquisition or exercise transactions in this Form 4 filing.
Century Aluminum Company director Olivier A. Tamla received an annual equity grant. He was awarded 2,172 shares of common stock in the form of restricted stock units at no cash cost. After this grant, he directly holds 31,845 shares, including shares issuable from vested RSUs subject to a deferral election. The RSUs vest in full on the earlier of the 12‑month anniversary of the grant date, the next regular annual stockholder meeting, or certain other events under the award terms.
Century Aluminum Company reported the results of its 2026 Annual Meeting of Stockholders held on June 15, 2026. A quorum was reached, with 85,513,459 shares of common stock present or represented by proxy, representing approximately 86.39% of shares outstanding and entitled to vote.
Stockholders elected seven directors – Jarl Berntzen, Jennifer Bush, Jesse Gary, Errol Glasser, Wilhelm van Jaarsveld, Andrew Michelmore, and Tamla Olivier – each to a one-year term expiring at the 2027 annual meeting. They also ratified the appointment of Deloitte & Touche LLP as the independent registered public accounting firm for the year ending December 31, 2026.
In addition, stockholders approved, on a non-binding advisory basis, the compensation of the company’s named executive officers as described in the proxy statement, indicating support for the company’s current executive pay program.