Listed

Koppers Holdings Inc.

KOPNYSECIK 1315257MaterialsFiscal year ends Dec 31

Latest reported revenue, Q2 FY2026$520.1mRevenue, Q2 FY2026, three months to 2026-06-30$520.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figureThree months to Jun 30, 2026, from the 10-Q filed Aug 6, 2026.

Latest quarter: Q2 FY2026

Three months to Jun 30, 2026, against the same quarter a year earlier.

  • Revenue$520.1mRevenue, Q2 FY2026, three months to 2026-06-30$520.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure+3.0% on a year earlier
  • Gross marginnot reported (Gross profit not reported)No year-earlier figure to compare
  • Operating margin−31.9%Operating margin, Q2 FY2026, three months to 2026-06-30. operating income / revenueOperating income: −$166.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Revenue: $520.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure−39.7 pts on a year earlier
  • Net margin−28.4%Net margin, Q2 FY2026, three months to 2026-06-30. net income / revenueNet income: −$147.5m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Revenue: $520.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure−31.6 pts on a year earlier
  • Diluted EPS−$7.71Diluted EPS, Q2 FY2026, three months to 2026-06-30−$7.71 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figureSign changed from a year earlier
  • Free cash flow$37.7mFree cash flow, Q2 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: $50.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001315257-26-000048. Derived: 6-month figure less the 3-month figure.Capital expenditure: $12.3m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-06, accession 0001315257-26-000048. Derived: 6-month figure less the 3-month figure.Report this figure−1.8% on a year earlier

Last eight quarters

Full statements
Revenue$520.1mOperating margin −31.9%
Diluted EPS−$7.71, Q2 FY2026
Free cash flow$37.7m, Q2 FY2026
Koppers Holdings Inc., key figures for the last eight quarters
Line itemUnitQ3 FY20242024-09-30Q4 FY20242024-12-31Q1 FY20252025-03-31Q2 FY20252025-06-30Q3 FY20252025-09-30Q4 FY20252025-12-31Q1 FY20262026-03-31Q2 FY20262026-06-30Shape over the periods
Revenue$m554Revenue, Q3 FY2024, three months to 2024-09-30$554.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure477Revenue, Q4 FY2024, three months to 2024-12-31$477.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure457Revenue, Q1 FY2025, three months to 2025-03-31$456.5m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure505Revenue, Q2 FY2025, three months to 2025-06-30$504.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure485Revenue, Q3 FY2025, three months to 2025-09-30$485.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure433Revenue, Q4 FY2025, three months to 2025-12-31$432.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure455Revenue, Q1 FY2026, three months to 2026-03-31$455.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure520Revenue, Q2 FY2026, three months to 2026-06-30$520.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure
Gross margin%not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)
Operating margin%9.0%Operating margin, Q3 FY2024, three months to 2024-09-30. operating income / revenueOperating income: $49.7m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Revenue: $554.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure1.3%Operating margin, Q4 FY2024, three months to 2024-12-31. operating income / revenueOperating income: $6.4m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Revenue: $477.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure5.9%Operating margin, Q1 FY2025, three months to 2025-03-31. operating income / revenueOperating income: $27.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Revenue: $456.5m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure7.7%Operating margin, Q2 FY2025, three months to 2025-06-30. operating income / revenueOperating income: $39.1m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Revenue: $504.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure10.7%Operating margin, Q3 FY2025, three months to 2025-09-30. operating income / revenueOperating income: $51.8m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Revenue: $485.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure11.5%Operating margin, Q4 FY2025, three months to 2025-12-31. operating income / revenueOperating income: $49.9m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Revenue: $432.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure4.8%Operating margin, Q1 FY2026, three months to 2026-03-31. operating income / revenueOperating income: $22.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Revenue: $455.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure(31.9%)Operating margin, Q2 FY2026, three months to 2026-06-30. operating income / revenueOperating income: −$166.0m. XBRL concept us-gaap:OperatingIncomeLoss. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Revenue: $520.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure
Net margin%4.1%Net margin, Q3 FY2024, three months to 2024-09-30. net income / revenueNet income: $22.8m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Revenue: $554.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure(2.1%)Net margin, Q4 FY2024, three months to 2024-12-31. net income / revenueNet income: −$10.2m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Revenue: $477.0m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure(3.0%)Net margin, Q1 FY2025, three months to 2025-03-31. net income / revenueNet income: −$13.9m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Revenue: $456.5m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure3.2%Net margin, Q2 FY2025, three months to 2025-06-30. net income / revenueNet income: $16.4m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Revenue: $504.8m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure4.9%Net margin, Q3 FY2025, three months to 2025-09-30. net income / revenueNet income: $23.8m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Revenue: $485.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure6.9%Net margin, Q4 FY2025, three months to 2025-12-31. net income / revenueNet income: $29.7m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Revenue: $432.7m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure1.6%Net margin, Q1 FY2026, three months to 2026-03-31. net income / revenueNet income: $7.1m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Revenue: $455.3m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure(28.4%)Net margin, Q2 FY2026, three months to 2026-06-30. net income / revenueNet income: −$147.5m. XBRL concept us-gaap:NetIncomeLoss. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Revenue: $520.1m. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure
Diluted EPS$ per share1.09Diluted EPS, Q3 FY2024, three months to 2024-09-30$1.09 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figurenot reported (Diluted EPS not reported)(0.68)Diluted EPS, Q1 FY2025, three months to 2025-03-31−$0.68 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure0.81Diluted EPS, Q2 FY2025, three months to 2025-06-30$0.81 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure1.17Diluted EPS, Q3 FY2025, three months to 2025-09-30$1.17 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figurenot reported (Diluted EPS not reported)0.35Diluted EPS, Q1 FY2026, three months to 2026-03-31$0.35 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure(7.71)Diluted EPS, Q2 FY2026, three months to 2026-06-30−$7.71 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-Q filed 2026-08-06, accession 0001315257-26-000048.Report this figure
Free cash flow$m14.4Free cash flow, Q3 FY2024, three months to 2024-09-30. operating cash flow − capital expenditureOperating cash flow: $29.8m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-07, accession 0001315257-25-000012. Derived: 9-month figure less the 6-month figure.Capital expenditure: $15.4m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure56.1Free cash flow, Q4 FY2024, three months to 2024-12-31. operating cash flow − capital expenditureOperating cash flow: $74.7m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Capital expenditure: $18.6m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure(37.0)Free cash flow, Q1 FY2025, three months to 2025-03-31. operating cash flow − capital expenditureOperating cash flow: −$22.7m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Capital expenditure: $14.3m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure38.4Free cash flow, Q2 FY2025, three months to 2025-06-30. operating cash flow − capital expenditureOperating cash flow: $50.5m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001315257-26-000048. Derived: 6-month figure less the 3-month figure.Capital expenditure: $12.1m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-08-08, accession 0000950170-25-105595.Report this figure37.6Free cash flow, Q3 FY2025, three months to 2025-09-30. operating cash flow − capital expenditureOperating cash flow: $49.6m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2025-11-07, accession 0001315257-25-000012. Derived: 9-month figure less the 6-month figure.Capital expenditure: $12.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2025-11-07, accession 0001315257-25-000012.Report this figure28.5Free cash flow, Q4 FY2025, three months to 2025-12-31. operating cash flow − capital expenditureOperating cash flow: $45.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Capital expenditure: $16.6m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-02-26, accession 0001315257-26-000012. Derived: 12-month figure less the 9-month figure.Report this figure34.9Free cash flow, Q1 FY2026, three months to 2026-03-31. operating cash flow − capital expenditureOperating cash flow: $46.3m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Capital expenditure: $11.4m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-05-08, accession 0001315257-26-000038.Report this figure37.7Free cash flow, Q2 FY2026, three months to 2026-06-30. operating cash flow − capital expenditureOperating cash flow: $50.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-Q filed 2026-08-06, accession 0001315257-26-000048. Derived: 6-month figure less the 3-month figure.Capital expenditure: $12.3m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-Q filed 2026-08-06, accession 0001315257-26-000048. Derived: 6-month figure less the 3-month figure.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Last five fiscal years

Revenue$1.88bnOperating margin 8.9%
Diluted EPS$2.74, FY2025
Free cash flow$67.5m, FY2025
Koppers Holdings Inc., key figures for the last five fiscal years
Line itemUnitFY20212021-12-31FY20222022-12-31FY20232023-12-31FY20242024-12-31FY20252025-12-31Shape over the periods
Revenue$m1,679Revenue, FY2021, twelve months to 2021-12-31$1.68bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-02-28, accession 0000950170-24-021787.Report this figure1,981Revenue, FY2022, twelve months to 2022-12-31$1.98bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-02-27, accession 0000950170-25-028542.Report this figure2,154Revenue, FY2023, twelve months to 2023-12-31$2.15bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure2,092Revenue, FY2024, twelve months to 2024-12-31$2.09bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure1,879Revenue, FY2025, twelve months to 2025-12-31$1.88bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure
Gross margin%not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)not reported (Gross profit not reported)
Operating margin%9.3%Operating margin, FY2021, twelve months to 2021-12-31. operating income / revenueOperating income: $156.5m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2024-02-28, accession 0000950170-24-021787.Revenue: $1.68bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-02-28, accession 0000950170-24-021787.Report this figure7.0%Operating margin, FY2022, twelve months to 2022-12-31. operating income / revenueOperating income: $137.7m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2025-02-27, accession 0000950170-25-028542.Revenue: $1.98bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-02-27, accession 0000950170-25-028542.Report this figure9.1%Operating margin, FY2023, twelve months to 2023-12-31. operating income / revenueOperating income: $195.2m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012.Revenue: $2.15bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure7.1%Operating margin, FY2024, twelve months to 2024-12-31. operating income / revenueOperating income: $148.2m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012.Revenue: $2.09bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure8.9%Operating margin, FY2025, twelve months to 2025-12-31. operating income / revenueOperating income: $167.8m. XBRL concept us-gaap:OperatingIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012.Revenue: $1.88bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure
Net margin%5.1%Net margin, FY2021, twelve months to 2021-12-31. net income / revenueNet income: $85.2m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2024-02-28, accession 0000950170-24-021787.Revenue: $1.68bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2024-02-28, accession 0000950170-24-021787.Report this figure3.2%Net margin, FY2022, twelve months to 2022-12-31. net income / revenueNet income: $63.4m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2025-02-27, accession 0000950170-25-028542.Revenue: $1.98bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2025-02-27, accession 0000950170-25-028542.Report this figure4.1%Net margin, FY2023, twelve months to 2023-12-31. net income / revenueNet income: $89.2m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012.Revenue: $2.15bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure2.5%Net margin, FY2024, twelve months to 2024-12-31. net income / revenueNet income: $52.4m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012.Revenue: $2.09bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure3.0%Net margin, FY2025, twelve months to 2025-12-31. net income / revenueNet income: $56.0m. XBRL concept us-gaap:NetIncomeLoss. 10-K filed 2026-02-26, accession 0001315257-26-000012.Revenue: $1.88bn. XBRL concept us-gaap:RevenueFromContractWithCustomerExcludingAssessedTax. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure
Diluted EPS$ per share3.88Diluted EPS, FY2021, twelve months to 2021-12-31$3.88 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2024-02-28, accession 0000950170-24-021787.Report this figure2.98Diluted EPS, FY2022, twelve months to 2022-12-31$2.98 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2025-02-27, accession 0000950170-25-028542.Report this figure4.14Diluted EPS, FY2023, twelve months to 2023-12-31$4.14 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure2.46Diluted EPS, FY2024, twelve months to 2024-12-31$2.46 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure2.74Diluted EPS, FY2025, twelve months to 2025-12-31$2.74 per share. XBRL concept us-gaap:EarningsPerShareDiluted. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure
Free cash flow$m(22.0)Free cash flow, FY2021, twelve months to 2021-12-31. operating cash flow − capital expenditureOperating cash flow: $103.0m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2024-02-28, accession 0000950170-24-021787.Capital expenditure: $125.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2024-02-28, accession 0000950170-24-021787.Report this figure(3.0)Free cash flow, FY2022, twelve months to 2022-12-31. operating cash flow − capital expenditureOperating cash flow: $102.3m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2025-02-27, accession 0000950170-25-028542.Capital expenditure: $105.3m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2025-02-27, accession 0000950170-25-028542.Report this figure25.6Free cash flow, FY2023, twelve months to 2023-12-31. operating cash flow − capital expenditureOperating cash flow: $146.1m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-26, accession 0001315257-26-000012.Capital expenditure: $120.5m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure42.0Free cash flow, FY2024, twelve months to 2024-12-31. operating cash flow − capital expenditureOperating cash flow: $119.4m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-26, accession 0001315257-26-000012.Capital expenditure: $77.4m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure67.5Free cash flow, FY2025, twelve months to 2025-12-31. operating cash flow − capital expenditureOperating cash flow: $122.5m. XBRL concept us-gaap:NetCashProvidedByUsedInOperatingActivities. 10-K filed 2026-02-26, accession 0001315257-26-000012.Capital expenditure: $55.0m. XBRL concept us-gaap:PaymentsToAcquirePropertyPlantAndEquipment. 10-K filed 2026-02-26, accession 0001315257-26-000012.Report this figure

Focus or hover a figure to see its XBRL concept, period and filing; each links to that filing. A figure marked d is derived: a quarter computed from year-to-date figures, such as the fourth quarter as the fiscal year less the nine months before it. A ratio reads not reported when any input is missing.

Insider purchases and sales

All insider transactions

The last 20 open-market transactions reported on Form 4 (codes P and S). The reported price is the price per share the insider stated on the form: filing data, not a market price.

No open-market purchases or sales by insiders are in coverage from Nov 2024 to Oct 2026.

No open-market purchases or sales by insiders are in coverage for this company.

Funds that report holding it

All funds

From each manager's latest Form 13F, largest reported value first. Reported value is as filed at the quarter end: filing data, not a price. A put or call is an option position, not shares held.

Funds that report holding Koppers Holdings Inc.
FundQuarter endedReported valueSharesPut or callChange on the quarter before
BlackRock, Inc.2026-06-30$136.8m3,047,603Added+2,491
Simcoe Capital Management, LLC2026-06-30$63.6m1,416,160Added+471,730
DIMENSIONAL FUND ADVISORS LP2026-06-30$55.6m1,237,249Added+45,891
PZENA INVESTMENT MANAGEMENT LLC2026-06-30$47.7m1,061,285Reduced−148,091
FULLER & THALER ASSET MANAGEMENT, INC.2026-06-30$42.4m943,279Reduced−35,311
AMERICAN CENTURY COMPANIES INC2026-06-30$38.1m848,068Added+313,066
VANGUARD CAPITAL MANAGEMENT LLC2026-06-30$36.5m812,629Reduced−27,817
STATE STREET CORP2026-06-30$36.1m804,553Added+52,289
VANGUARD PORTFOLIO MANAGEMENT LLC2026-06-30$24.2m539,047Added+8,515
GEODE CAPITAL MANAGEMENT, LLC2026-06-30$21.7m483,417Added+15,808

Recent filings

All 1,696 filings

Reports and events: 10-K, 10-Q, 8-K, proxy statements and ownership schedules.

Koppers Holdings Inc., recent filings
FiledFormWhat it isAccession number
2026-10-2222:28 ETSCHEDULE 13D/AOwnership report, active investor, amended0000921895-26-002844
2026-08-0616:05 ET10-QQuarterly reportPeriod 2026-06-300001315257-26-000048
2026-08-0612:14 ET8-K2.02 Results of operations; 9.01 Financial statements and exhibits0001315257-26-000046
2026-05-1921:33 ETSCHEDULE 13DOwnership report, active investor0000921895-26-001441
2026-05-1113:05 ET8-K5.02 Departure or appointment of officers or directors; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001315257-26-000041
2026-05-0816:05 ET10-QQuarterly reportPeriod 2026-03-310001315257-26-000038
2026-05-0813:10 ET8-K2.02 Results of operations; 2.05 Exit or disposal costs; 5.02 Departure or appointment of officers or directors; 5.07 Shareholder vote results; 7.01 Regulation FD disclosure; 9.01 Financial statements and exhibits0001315257-26-000036
2026-05-0720:18 ET8-K/A5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001315257-26-000030
2026-03-2720:30 ETDEF 14AProxy statementPeriod 2026-05-070001315257-26-000026
2026-03-1820:45 ET8-K/A5.02 Departure or appointment of officers or directors; 9.01 Financial statements and exhibits0001315257-26-000017

Latest annual report

Form 10-K for the fiscal year ended Dec 31, 2025Filed Feb 26, 2026. Its page lists the documents and the extracted sections, such as Business and Risk factors.

Forecast league

Q3 FY2026, the quarter ended 2026-09-30, is open for forecasts until the first results filing for it is accepted by EDGAR. Results are due by [object Promise].Forecast this quarter

About the filer

CIK
1315257
Tickers
KOP
Exchange
NYSE
SIC code
2400 Lumber & Wood Products (No Furniture)
Sector
Materials
Fiscal year ends
Dec 31
Incorporated in
PA
Filer category
Large accelerated filer
Former names
KI Holdings Inc. (to 2005-11-14)

Source: SEC EDGAR, XBRL company facts, the filing index and Forms 4. Last ingested by Listed: Oct 24, 2026, 15:36 ET. Listed shows no prices and gives no investment advice.