KAISER ALUMINUM CORP 8-K

What Happened

• Kaiser Aluminum Corporation announced preliminary financial results for the year ended December 31, 2025 in a press release issued February 18, 2026. The company filed a Current Report on Form 8-K (Item 2.02) to furnish that press release (Exhibit 99.1), which is incorporated by reference into the report. The filing was signed by Cherrie I. Tsai, Vice President, Deputy General Counsel and Corporate Secretary.

Key Details

• File date: February 18, 2026.
• Reporting item: 2.02 — Results of Operations and Financial Condition (preliminary year‑end results for 2025).
• Exhibit furnished: 99.1 — press release dated February 18, 2026 (also referenced in Exhibit 104, Inline XBRL cover page).
• Report signed by: Cherrie I. Tsai (company corporate secretary).

Why It Matters

• The filing provides investors an initial, company‑issued view of Kaiser Aluminum’s 2025 performance (earnings and other year‑end results). Retail investors should read the furnished press release for the specific revenue, earnings, and other metrics disclosed and watch for subsequent full financial statements or Form 10‑K filings that provide audited results and additional detail. This 8‑K is informational (furnishing a press release) rather than a full periodic filing.