Quick Answer
Koppers Holdings Inc. reported Long-Term Debt of $914.30 million for fiscal year 2025.
Koppers Holdings Inc. Long-Term Debt — Annual History
| Fiscal Year | Long-Term Debt | YoY Change |
|---|---|---|
| 2025 | $914.30M | -1.3% |
| 2024 | $925.90M | +10.8% |
| 2023 | $835.40M | +2.2% |
| 2022 | $817.70M | +4.6% |
| 2021 | $781.50M | +2.1% |
| 2020 | $765.80M | -14.1% |
| 2019 | $891.00M | -9.0% |
| 2018 | $978.80M | +47.1% |
| 2017 | $665.60M | +7.4% |
| 2016 | $619.80M | -9.2% |
| 2015 | $682.40M | -15.4% |
| 2014 | $806.60M | +166.1% |
| 2013 | $303.10M | +2.4% |
| 2012 | $296.10M | -2.0% |
| 2011 | $302.10M | +2.3% |
| 2010 | $295.40M | -11.8% |
| 2009 | $335.10M | — |
Quarterly Long-Term Debt
| Quarter Ending | Long-Term Debt | YoY | QoQ |
|---|---|---|---|
| September 30, 2025 | $918.30M | -5.9% | -4.6% |
| June 30, 2025 | $962.90M | -2.4% | -1.3% |
| March 31, 2025 | $975.90M | +12.8% | +5.4% |
| December 31, 2024 | $925.90M | +10.8% | -5.1% |
| September 30, 2024 | $975.90M | +13.5% | -1.1% |
| June 30, 2024 | $986.70M | +9.4% | +14.1% |
| March 31, 2024 | $865.10M | -1.8% | +3.6% |
| December 31, 2023 | $835.40M | +2.2% | -2.8% |
- Koppers Holdings Inc. showed a decrease of -1.3% in Long-Term Debt compared to the prior fiscal year.
- Over the 2009–2025 period, Koppers Holdings Inc.’s long-term debt has grown by 172.8% (from $335.10 million to $914.30 million).
- The most recent figure is from Koppers Holdings Inc.’s fiscal year 2025 report (Form 10-K), filed with the SEC on February 26, 2026.
- All figures are sourced from SEC EDGAR XBRL filings, last verified June 17, 2026.
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