Current Report · Items 2.02, 9.01 · 8-K

Kaiser Aluminum Corporation

KALUNASDAQEQUITYCurrent

Results of Operations and Financial Condition

Filed Apr 22, 2026Accepted Apr 22, 2026, 4:40 PM EDTCIK 811596Accession 0001193125-26-170615

Company context

Kaiser Aluminum Corporation, headquartered in Franklin, Tenn., is a leading producer of semi-fabricated specialty aluminum products, serving customers worldwide with highly-engineered solutions for aerospace and high-strength, packaging, general engineering, automotive extrusions, and other industrial applications. The Company’s North American facilities produce value-added plate, sheet, coil, extrusions, rod, bar, tube, and wire products, adhering to traditions of quality, innovation, and service that have been key components of the culture since the Company was founded in 1946. The Company’s stock is included in the Russell 2000® index and the S&P Small Cap 600® index.

Current securities

KALUNASDAQ · EQUITY · Current

Recent company filings

Disclosure sections

Items 2.02, 9.01

Select an item to read the extracted section. The as-filed document remains the primary evidence.

Item 2.02Item 2.02 - Results of Operations

Item 2.02. Results of Operations and Financial Condition. On April 22, 2026, Kaiser Aluminum Corporation (the “Company”) issued a press release reporting its preliminary, unaudited financial results for the quarter ended March 31, 2026. A copy of the press release is furnished as Exhibit 99.1 to this Current Report on Form 8-K and is incorporated by reference into this Item 2.02. The information in Item 2.02, including Exhibit 99.1, of this Current Report on Form 8-K shall not be deemed to be “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, and shall not be deemed incorporated by reference into any filing by the Company under the Securities Act of 1933, as amended, or the Exchange Act, unless specifically identified therein as being incorporated therein by reference.

Filed exhibits (1)

EX-99.1 (by filename) kalu-ex99_1.htm

EX-99.1 2 kalu-ex99_1.htm EX-99.1 EX-99.1 Exhibit 99.1 Kaiser Aluminum Corporation Reports Record First Quarter 2026 Financial Results First Quarter 2026 Highlights: o Established Record Results in the Following: o Net Sales $1.1 Billion; Conversion Revenue $404 Million o Net Income $63 Million; Net Income per Diluted Share $3.71 o Adjusted Net Income $63 Million; Adjusted Net Income per Diluted Share $3.74 o Adjusted EBITDA $129 Million; Adjusted EBITDA Margin 31.8% o Declared Quarterly Dividend of $0.77 o Net Debt Leverage Ratio Improved to 2.8x o Raising Full Year Outlook FRANKLIN, Tenn., April 22, 2026 - Kaiser Aluminum Corporation (NASDAQ: KALU) (the "Company" or "Kaiser"), a leading producer of semi-fabricated specialty aluminum products serving customers worldwide with highly-engineered solutions for aerospace and high strength, packaging, general engineering, and automotive extrusions end market applications, today announced first quarter 2026 results. Management Commentary “Our strong finish to 2025 carried into 2026, giving us the confidence to raise our full year outlook,” said Keith A. Harvey, Chairman, President and Chief Executive Officer. “…

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