KOPPERS HOLDINGS INC. Defined Contribution Plan, Cost
KOPPERS HOLDINGS INC. (KOP) reported Defined Contribution Plan, Cost of $1.70 million for the 3-month period ending 2026-06-30, per its 10-Q filed 2026-08-06.
Financial Statements › Expense Statement › Operating Expenses
us-gaap:DefinedContributionPlanCostRecognized · last filed 2026-08-06
- KOPPERS HOLDINGS INC. defined contribution plan, cost for the quarter ending 2026-06-30 was $1.70M, a 41.67% increase year-over-year.
- KOPPERS HOLDINGS INC. defined contribution plan, cost for the quarter ending 2026-03-31 was $2.90M, a 12.12% decline year-over-year.
- KOPPERS HOLDINGS INC. defined contribution plan, cost for the quarter ending 2025-12-31 was $2.70M, a 3.85% increase year-over-year.
- KOPPERS HOLDINGS INC. defined contribution plan, cost for the quarter ending 2025-09-30 was $1.60M, a 23.81% decline year-over-year.
- KOPPERS HOLDINGS INC. defined contribution plan, cost for fiscal 2025 was $8.80M, a 6.38% decline from fiscal 2024.
- KOPPERS HOLDINGS INC. defined contribution plan, cost for fiscal 2024 was $9.40M, a 3.09% decline from fiscal 2023.
- KOPPERS HOLDINGS INC. defined contribution plan, cost for fiscal 2023 was $9.70M, a 15.48% increase from fiscal 2022.
- KOPPERS HOLDINGS INC. defined contribution plan, cost for fiscal 2022 was $8.40M, a 7.69% decline from fiscal 2021.
| Period end | Defined Contribution Plan, Cost 3 month | Defined Contribution Plan, Cost 6 month | Defined Contribution Plan, Cost 9 month | Defined Contribution Plan, Cost 12 month |
|---|---|---|---|---|
| 2026-06-30 | $1.70M 10-Q · filed 2026-08-06 | $4.60M 10-Q · filed 2026-08-06 | $7.30M derived: sum of 3 quarters · filed 2026-08-06 | $8.90M derived: sum of 4 quarters · filed 2026-08-06 |
| 2026-03-31 | $2.90M 10-Q · filed 2026-05-08 | $5.60M derived: sum of 2 quarters · filed 2026-05-08 | $7.20M derived: sum of 3 quarters · filed 2026-05-08 | $8.40M derived: sum of 4 quarters · filed 2026-08-06 |
| 2025-12-31 | $2.70M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | $4.30M derived: sum of 2 quarters · filed 2026-02-26 | $5.50M derived: sum of 3 quarters · filed 2026-08-06 | $8.80M 10-K · filed 2026-02-26 |
| 2025-09-30 | $1.60M 10-Q · filed 2025-11-07 | $2.80M derived: sum of 2 quarters · filed 2026-08-06 | $6.10M 10-Q · filed 2025-11-07 | $8.70M derived: sum of 4 quarters · filed 2026-08-06 |
| 2025-06-30 | $1.20M 10-Q · filed 2026-08-06 | $4.50M 10-Q · filed 2026-08-06 | $7.10M derived: sum of 3 quarters · filed 2026-08-06 | $9.20M derived: sum of 4 quarters · filed 2026-08-06 |
| 2025-03-31 | $3.30M 10-Q · filed 2026-05-08 | $5.90M derived: sum of 2 quarters · filed 2026-05-08 | $8.00M derived: sum of 3 quarters · filed 2026-05-08 | $9.70M derived: sum of 4 quarters · filed 2026-05-08 |
| 2024-12-31 | $2.60M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | $4.70M derived: sum of 2 quarters · filed 2026-02-26 | $6.40M derived: sum of 3 quarters · filed 2026-02-26 | $9.40M 10-K · filed 2026-02-26 |
| 2024-09-30 | $2.10M 10-Q · filed 2025-11-07 | $3.80M derived: sum of 2 quarters · filed 2025-11-07 | $6.80M 10-Q · filed 2025-11-07 | $8.50M derived: sum of 4 quarters · filed 2026-02-26 |
| 2024-06-30 | $1.70M 10-Q · filed 2025-08-08 | $4.70M 10-Q · filed 2025-08-08 | $6.40M derived: sum of 3 quarters · filed 2026-02-26 | $9.60M derived: sum of 4 quarters · filed 2026-02-26 |
| 2024-03-31 | $3.00M 10-Q · filed 2025-05-09 | $4.70M derived: sum of 2 quarters · filed 2026-02-26 | $7.90M derived: sum of 3 quarters · filed 2026-02-26 | $10.30M derived: sum of 4 quarters · filed 2026-02-26 |
| 2023-12-31 | $1.70M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | $4.90M derived: sum of 2 quarters · filed 2026-02-26 | $7.30M derived: sum of 3 quarters · filed 2026-02-26 | $9.70M 10-K · filed 2026-02-26 |
| 2023-09-30 | $3.20M 10-Q · filed 2024-11-08 | $5.60M derived: sum of 2 quarters · filed 2024-11-08 | $8.00M 10-Q · filed 2024-11-08 | $9.50M derived: sum of 4 quarters · filed 2025-02-27 |
| 2023-06-30 | $2.40M 10-Q · filed 2024-08-08 | $4.90M 10-Q · filed 2024-08-08 | $6.30M derived: sum of 3 quarters · filed 2025-02-27 | $8.50M derived: sum of 4 quarters · filed 2025-02-27 |
| 2023-03-31 | $2.50M 10-Q · filed 2024-05-03 | $3.90M derived: sum of 2 quarters · filed 2025-02-27 | $6.10M derived: sum of 3 quarters · filed 2025-02-27 | $8.40M derived: sum of 4 quarters · filed 2025-02-27 |
| 2022-12-31 | $1.40M derived: 10-K 12 month − 10-Q 9 month · filed 2025-02-27 | $3.60M derived: sum of 2 quarters · filed 2025-02-27 | $5.90M derived: sum of 3 quarters · filed 2025-02-27 | $8.40M 10-K · filed 2025-02-27 |
| 2022-09-30 | $2.20M 10-Q · filed 2023-11-03 | $4.50M derived: sum of 2 quarters · filed 2023-11-03 | $7.00M 10-Q · filed 2023-11-03 | $9.60M derived: sum of 4 quarters · filed 2024-02-28 |
| 2022-06-30 | $2.30M 10-Q · filed 2023-08-03 | $4.80M 10-Q · filed 2023-08-03 | $7.40M derived: sum of 3 quarters · filed 2024-02-28 | $9.30M derived: sum of 4 quarters · filed 2024-02-28 |
| 2022-03-31 | $2.50M 10-Q · filed 2023-05-05 | $5.10M derived: sum of 2 quarters · filed 2024-02-28 | $7.00M derived: sum of 3 quarters · filed 2024-02-28 | $9.60M derived: sum of 4 quarters · filed 2024-02-28 |
| 2021-12-31 | $2.60M derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-28 | $4.50M derived: sum of 2 quarters · filed 2024-02-28 | $7.10M derived: sum of 3 quarters · filed 2024-02-28 | $9.10M 10-K · filed 2024-02-28 |
| 2021-09-30 | $1.90M 10-Q · filed 2022-11-04 | $4.50M derived: sum of 2 quarters · filed 2022-11-04 | $6.50M 10-Q · filed 2022-11-04 | $9.00M derived: sum of 4 quarters · filed 2023-02-27 |
| 2021-06-30 | $2.60M 10-Q · filed 2022-08-04 | $4.30M 10-Q · filed 2022-08-04 | $7.10M derived: sum of 3 quarters · filed 2023-02-27 | $8.70M derived: sum of 4 quarters · filed 2023-02-27 |
| 2021-03-31 | $1.70M 10-Q · filed 2022-05-06 | $4.50M derived: sum of 2 quarters · filed 2023-02-27 | $6.10M derived: sum of 3 quarters · filed 2023-02-27 | $8.40M derived: sum of 4 quarters · filed 2023-02-27 |
| 2020-12-31 | $2.80M derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-27 | $4.40M derived: sum of 2 quarters · filed 2023-02-27 | $6.70M derived: sum of 3 quarters · filed 2023-02-27 | $8.40M 10-K · filed 2023-02-27 |
| 2020-09-30 | $1.60M 10-Q · filed 2021-11-04 | $3.90M derived: sum of 2 quarters · filed 2021-11-04 | $5.60M 10-Q · filed 2021-11-04 | $7.50M derived: sum of 4 quarters · filed 2022-02-23 |
| 2020-06-30 | $2.30M 10-Q · filed 2021-08-06 | $4.00M 10-Q · filed 2021-08-06 | $5.90M derived: sum of 3 quarters · filed 2022-02-23 | $8.10M derived: sum of 4 quarters · filed 2022-02-23 |
| 2020-03-31 | $1.60M 10-Q · filed 2021-05-07 | $3.60M derived: sum of 2 quarters · filed 2022-02-23 | $5.80M derived: sum of 3 quarters · filed 2022-02-23 | $8.30M derived: sum of 4 quarters · filed 2022-02-23 |
| 2019-12-31 | $2.00M derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-23 | $4.20M derived: sum of 2 quarters · filed 2022-02-23 | $6.70M derived: sum of 3 quarters · filed 2022-02-23 | $8.30M 10-K · filed 2022-02-23 |
| 2019-09-30 | $2.20M 10-Q · filed 2020-11-04 | $4.70M derived: sum of 2 quarters · filed 2020-11-04 | $6.30M 10-Q · filed 2020-11-04 | $8.30M derived: sum of 4 quarters · filed 2021-02-24 |
| 2019-06-30 | $2.50M 10-Q · filed 2020-08-05 | $4.10M 10-Q · filed 2020-08-05 | $6.10M derived: sum of 3 quarters · filed 2021-02-24 | $7.40M derived: sum of 4 quarters · filed 2021-02-24 |
| 2019-03-31 | $1.60M 10-Q · filed 2020-05-07 | $3.60M derived: sum of 2 quarters · filed 2021-02-24 | $4.90M derived: sum of 3 quarters · filed 2021-02-24 | $7.10M derived: sum of 4 quarters · filed 2021-02-24 |
| 2018-12-31 | $2.00M derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-24 | $3.30M derived: sum of 2 quarters · filed 2021-02-24 | $5.50M derived: sum of 3 quarters · filed 2021-02-24 | $7.50M 10-K · filed 2021-02-24 |
| 2018-09-30 | $1.30M 10-Q · filed 2019-11-07 | $3.50M derived: sum of 2 quarters · filed 2019-11-07 | $5.50M 10-Q · filed 2019-11-07 | $8.30M derived: sum of 4 quarters · filed 2020-02-27 |
| 2018-06-30 | $2.20M 10-Q · filed 2019-08-08 | $4.20M 10-Q · filed 2019-08-08 | $7.00M derived: sum of 3 quarters · filed 2020-02-27 | $9.10M derived: sum of 4 quarters · filed 2020-02-27 |
| 2018-03-31 | $2.00M 10-Q · filed 2019-05-03 | $4.80M derived: sum of 2 quarters · filed 2020-02-27 | $6.90M derived: sum of 3 quarters · filed 2020-02-27 | $8.70M derived: sum of 4 quarters · filed 2020-02-27 |
| 2017-12-31 | $2.80M derived: 10-K 12 month − 10-Q 9 month · filed 2020-02-27 | $4.90M derived: sum of 2 quarters · filed 2020-02-27 | $6.70M derived: sum of 3 quarters · filed 2020-02-27 | $8.90M 10-K · filed 2020-02-27 |
| 2017-09-30 | $2.10M 10-Q · filed 2018-11-08 | $3.90M derived: sum of 2 quarters · filed 2018-11-08 | $6.10M 10-Q · filed 2018-11-08 | $8.10M derived: sum of 4 quarters · filed 2019-03-01 |
| 2017-06-30 | $1.80M 10-Q · filed 2018-08-09 | $4.00M 10-Q · filed 2018-08-09 | $6.00M derived: sum of 3 quarters · filed 2019-03-01 | $8.00M derived: sum of 4 quarters · filed 2019-03-01 |
| 2017-03-31 | $2.20M 10-Q · filed 2018-05-03 | $4.20M derived: sum of 2 quarters · filed 2019-03-01 | $6.20M derived: sum of 3 quarters · filed 2019-03-01 | $7.90M derived: sum of 4 quarters · filed 2019-03-01 |
| 2016-12-31 | $2.00M derived: 10-K 12 month − 10-Q 9 month · filed 2019-03-01 | $4.00M derived: sum of 2 quarters · filed 2019-03-01 | $5.70M derived: sum of 3 quarters · filed 2019-03-01 | $7.80M 10-K · filed 2019-03-01 |
| 2016-09-30 | $2.00M 10-Q · filed 2017-11-09 | $3.70M derived: sum of 2 quarters · filed 2017-11-09 | $5.80M 10-Q · filed 2017-11-09 | $7.60M derived: sum of 4 quarters · filed 2018-02-27 |
| 2016-06-30 | $1.70M 10-Q · filed 2017-08-03 | $3.80M 10-Q · filed 2017-08-03 | $5.60M derived: sum of 3 quarters · filed 2018-02-27 | $7.70M derived: sum of 4 quarters · filed 2018-02-27 |
| 2016-03-31 | $2.10M 10-Q · filed 2017-05-08 | $3.90M derived: sum of 2 quarters · filed 2018-02-27 | $6.00M derived: sum of 3 quarters · filed 2018-02-27 | $8.00M derived: sum of 4 quarters · filed 2018-02-27 |
| 2015-12-31 | $1.80M derived: 10-K 12 month − 10-Q 9 month · filed 2018-02-27 | $3.90M derived: sum of 2 quarters · filed 2018-02-27 | $5.90M derived: sum of 3 quarters · filed 2018-02-27 | $6.00M 10-K · filed 2018-02-27 |
| 2015-09-30 | $2.10M 10-Q · filed 2016-11-03 | $4.10M derived: sum of 2 quarters · filed 2016-11-03 | $4.20M 10-Q · filed 2016-11-03 | |
| 2015-06-30 | $2.00M 10-Q · filed 2016-08-04 | $2.00M 10-Q · filed 2016-08-04 | ||
| 2015-03-31 | $0.00 10-Q · filed 2016-05-06 | |||
| 2014-12-31 | $6.90M 10-K · filed 2017-02-24 | |||
| 2013-12-31 | $5.30M 10-K · filed 2016-02-29 |
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