Filing Flows › Koppers Holdings (KOP) › Q4 2025
Koppers Holdings (KOP) Q4 2025 earnings results (fourth quarter 2025)
10-K filed Feb 26, 2026
Koppers Holdings (KOP) reported revenue of $433M for the fourth quarter 2025 (Q4 2025), -9% from a year earlier and -11% from the quarter before. Operating margin was 11.5%, net earnings $29.7M (6.9% of revenue).
Koppers Holdings, Q4 2025: revenue $433M (-9% year over year), operating margin 11.5%, net earnings $29.7M, operating cash flow $45.1M. The chart follows the revenue to costs, profit and cash.
| Q4 2025 | Amount | Q/Q | Y/Y |
|---|---|---|---|
| Revenue | $433M | -11% | -9% |
| Operating profit | $49.9M | -4% | +680% |
| Net earnings | $29.7M | +25% | — |
| Operating cash flow | $45.1M | -9% | -40% |
| Free cash flow | $28.5M | -24% | -49% |
What changed
Revenue was $432.7M in Q4 2025, down 9% year over year and down 11% from the previous quarter.
Operating profit was $49.9M, a 11.5% margin (up 10.2 points year over year). Total costs fell 19% while revenue fell 9%. Net earnings were $29.7M. The effective tax rate was 23.3%.
Operating cash flow was $45.1M (down 40% year over year), 152% of net earnings. Non-cash charges added back $20.0M of depreciation and amortization and $3.1M of share-based compensation. Working capital and other items used $7.7M. Capital expenditures of $16.6M left free cash flow of $28.5M.
Questions
What was Koppers Holdings' revenue in the fourth quarter 2025?
Koppers Holdings (KOP) reported revenue of $433M for the fourth quarter 2025 (Q4 2025), -9% from a year earlier and -11% from the quarter before.
Was Koppers Holdings profitable in the fourth quarter 2025?
Operating profit was $49.9M (11.5% of revenue) and net earnings $29.7M.
Source: Koppers Holdings 10-K on SEC EDGAR.