Filing Flows › Kaiser Aluminum (KALU) › Q4 2025
Kaiser Aluminum (KALU) Q4 2025 earnings results (fourth quarter 2025)
10-K filed Feb 19, 2026
Kaiser Aluminum (KALU) reported revenue of $929M for the fourth quarter 2025 (Q4 2025), +21% from a year earlier and +10% from the quarter before. Operating margin was 6.5%, net earnings $28.2M (3.0% of revenue).
Kaiser Aluminum, Q4 2025: revenue $929M (+21% year over year), operating margin 6.5%, net earnings $28.2M, operating cash flow −$20.6M. The chart follows the revenue to costs, profit and cash.
| Q4 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $929M | +10% | +21% |
| Operating profit | $60.6M | +24% | +57% |
| Net earnings | $28.2M | -29% | +42% |
| Operating cash flow | −$20.6M | -135% | — |
What changed
Revenue was $929.0M in Q4 2025, up 21% year over year and up 10% from the previous quarter. Packaging was the largest line at 47% of revenue.
Operating profit was $60.6M, a 6.5% margin (up 1.5 points year over year). Of the extra revenue versus a year earlier, 14% reached operating profit, above the 5% margin then. Total costs grew 19% against revenue growth of 21%. The fastest-growing cost line was Cost of revenue (+20%). Net earnings were $28.2M, up 42% year over year. The effective tax rate was 35.2%.
Operating cash flow was −$20.6M. Non-cash charges added back $30.9M of depreciation and amortization and $4.6M of share-based compensation. Working capital and other items used $84.3M. Capital expenditures of $30.5M exceeded it, leaving free cash flow of −$51.1M.
Questions
What was Kaiser Aluminum's revenue in the fourth quarter 2025?
Kaiser Aluminum (KALU) reported revenue of $929M for the fourth quarter 2025 (Q4 2025), +21% from a year earlier and +10% from the quarter before.
Was Kaiser Aluminum profitable in the fourth quarter 2025?
Operating profit was $60.6M (6.5% of revenue) and net earnings $28.2M.
Source: Kaiser Aluminum 10-K on SEC EDGAR.