Kaiser Aluminum Corp number of employees

Kaiser Aluminum Corp reported 3,840 employees at December 31, 2025 in its latest annual report. Revenue per employee was $878,385.

Headcount by year

Fiscal year end	Employees	Change	Revenue per employee	Source
December 31, 2025	3,840	—	$878,385	10-K, filed February 19, 2026

What the annual reports say

Human Capital At December 31, 2025, we employed 3,840 people, of which approximately 3,760 were employed in our manufacturing, sales, and support office locations and approximately 80 were employed in a corporate capacity. 10 Governance and Culture Our talented workforce is a key factor underlying our success. 2025 annual report

Headcount as the company states it in Item 1 of its annual report (some count full-time equivalents or exclude part-time and temporary staff), at the date it gives. Years where the report states no clear total are left out rather than estimated. Changes can reflect acquisitions and disposals as well as hiring and job cuts.

Compare with peers

Head to head: CENX vs KALU CSTM vs KALU AA vs KALU

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Figures from Kaiser Aluminum Corp's SEC filings (10-K and 10-Q), retrieved October 26, 2026. How we read and check them: methodology and data sources. Not investment advice. Back to Kaiser Aluminum Corp.