Koppers Holdings Inc. Net Income Loss

• Koppers Holdings Inc. showed an increase of +6.9% in Net Income Loss from 2024 to 2025.
• This data is from Koppers Holdings Inc.'s annual report (Form 10-K), filed with the SEC on February 26, 2026.
• XBRL data for this metric is available from 2008 to 2025 (18 years of filings). Earlier data may not exist in machine-readable XBRL format as companies adopted electronic filing at different times.
• Over the full 18 years of available data (2008 to 2025), Koppers Holdings Inc.'s Net Income Loss has declined by 59.4%.
• Historical annual values: Fiscal year 2025: $56.00 million | Fiscal year 2024: $52.40 million | Fiscal year 2023: $89.20 million | Fiscal year 2022: $63.40 million | Fiscal year 2021: $85.20 million | Fiscal year 2020: $122.00 million | Fiscal year 2019: $66.60 million | Fiscal year 2018: $23.40 million | Fiscal year 2017: $29.10 million | Fiscal year 2016: $29.30 million | Fiscal year 2015: -$72.00 million | Fiscal year 2014: -$32.40 million | Fiscal year 2013: $40.40 million | Fiscal year 2012: $65.60 million | Fiscal year 2011: $36.90 million | Fiscal year 2010: $44.10 million | Fiscal year 2009: $18.80 million | Fiscal year 2008: $138.00 million.
• Data sourced from SEC EDGAR public filings as of June 20, 2026.

Last verified: June 20, 2026