
Kaiser Aluminum Corporation
Kaiser Aluminum Corporation (KALU) Number of Employees – History & Annual Headcount
Annual SEC headcount, year-over-year change, and per-employee efficiency — chart and full history below.
SEC EDGAR · FMP · KALU · as of Feb 19, 2026
Latest filing snapshot
Kaiser Aluminum Corporation (KALU) employee data is sourced from the annual SEC 10-K filing. As of 2025, full-time employees only. Global consolidated headcount. View SEC filing ↗
KALU Employee Count
1993 – 2025 · Annual · SEC filingSource: SEC annual filings · Hover bar to view year data · Click to view original filing
Employees History
▸ Source: SEC Annual Reports (Form 10-K / 20-F). Employee counts as of fiscal year end. Click the ↗ icon at the end of a row to open the original SEC filing in a new tab.
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AluminumAbout KALU employees
KALU Employees · Headcount
Kaiser Aluminum Corporation (KALU) employee data is sourced from the annual SEC 10-K filing. As of 2025, Kaiser Aluminum Corporation had 3,840 full-time employees globally. Full-time employees only. Global consolidated headcount.
Kaiser Aluminum Corporation employs 3,840 full-time employees as of the latest filing within the Aluminum industry. Revenue per employee stands at $878,385, reflecting the company's operational efficiency.
Kaiser Aluminum Corporation's workforce decreased by 160 (4.00%) in 2025 compared to the prior fiscal year. The historical trend reflects the company's expansion and contraction cycles.
Kaiser Aluminum Corporation's revenue per employee of $878,385 positions it among the notable performers in the Aluminum sector for operational efficiency.
Frequently Asked Questions
KALU Employees · 5 questionsAs of the latest SEC 10-K filing (2025), Kaiser Aluminum Corporation had 3,840 full-time employees globally. This figure is sourced from the company's mandatory annual disclosure to the SEC.
▸ Data source: FMP /historical-employee-count · SEC EDGAR annual filings · As reported · Global consolidated headcount · As of 2026-02-19