KOPPERS HOLDINGS INC. Defined Benefit Plan, Amortization of Gain (Loss)
KOPPERS HOLDINGS INC. (KOP) reported Defined Benefit Plan, Amortization of Gain (Loss) of -$300.00 thousand 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:DefinedBenefitPlanAmortizationOfGainsLosses · last filed 2026-08-06
- KOPPERS HOLDINGS INC. defined benefit plan, amortization of gain (loss) for the quarter ending 2026-06-30 was -$300.00K.
- KOPPERS HOLDINGS INC. defined benefit plan, amortization of gain (loss) for the quarter ending 2026-03-31 was -$200.00K.
- KOPPERS HOLDINGS INC. defined benefit plan, amortization of gain (loss) for the quarter ending 2025-09-30 was -$300.00K.
- KOPPERS HOLDINGS INC. defined benefit plan, amortization of gain (loss) for the quarter ending 2025-06-30 was -$200.00K.
| Period end | Defined Benefit Plan, Amortization of Gain (Loss) 3 month | Defined Benefit Plan, Amortization of Gain (Loss) 6 month | Defined Benefit Plan, Amortization of Gain (Loss) 9 month |
|---|---|---|---|
| 2026-06-30 | -$300.00K 10-Q · filed 2026-08-06 | -$500.00K 10-Q · filed 2026-08-06 | |
| 2026-03-31 | -$200.00K 10-Q · filed 2026-05-08 | ||
| 2025-09-30 | -$300.00K 10-Q · filed 2025-11-07 | -$500.00K derived: sum of 2 quarters · filed 2026-08-06 | -$900.00K 10-Q · filed 2025-11-07 |
| 2025-06-30 | -$200.00K 10-Q · filed 2026-08-06 | -$600.00K 10-Q · filed 2026-08-06 | |
| 2025-03-31 | -$400.00K 10-Q · filed 2026-05-08 | ||
| 2024-09-30 | -$500.00K 10-Q · filed 2025-11-07 | -$1.00M derived: sum of 2 quarters · filed 2025-11-07 | -$1.50M 10-Q · filed 2025-11-07 |
| 2024-06-30 | -$500.00K 10-Q · filed 2025-08-08 | -$1.00M 10-Q · filed 2025-08-08 | |
| 2024-03-31 | -$500.00K 10-Q · filed 2025-05-09 | ||
| 2023-09-30 | -$500.00K 10-Q · filed 2024-11-08 | -$1.10M derived: sum of 2 quarters · filed 2024-11-08 | -$1.60M 10-Q · filed 2024-11-08 |
| 2023-06-30 | -$600.00K 10-Q · filed 2024-08-08 | -$1.10M 10-Q · filed 2024-08-08 | |
| 2023-03-31 | -$500.00K 10-Q · filed 2024-05-03 | ||
| 2022-09-30 | -$400.00K 10-Q · filed 2023-11-03 | -$800.00K derived: sum of 2 quarters · filed 2023-11-03 | -$1.30M 10-Q · filed 2023-11-03 |
| 2022-06-30 | -$400.00K 10-Q · filed 2023-08-03 | -$900.00K 10-Q · filed 2023-08-03 | |
| 2022-03-31 | -$500.00K 10-Q · filed 2023-05-05 | ||
| 2021-09-30 | -$400.00K 10-Q · filed 2022-11-04 | -$700.00K derived: sum of 2 quarters · filed 2022-11-04 | -$1.10M 10-Q · filed 2022-11-04 |
| 2021-06-30 | -$300.00K 10-Q · filed 2022-08-04 | -$700.00K 10-Q · filed 2022-08-04 | |
| 2021-03-31 | -$400.00K 10-Q · filed 2022-05-06 | ||
| 2020-09-30 | -$400.00K 10-Q · filed 2021-11-04 | -$700.00K derived: sum of 2 quarters · filed 2021-11-04 | -$1.10M 10-Q · filed 2021-11-04 |
| 2020-06-30 | -$300.00K 10-Q · filed 2021-08-06 | -$700.00K 10-Q · filed 2021-08-06 | |
| 2020-03-31 | -$400.00K 10-Q · filed 2021-05-07 | ||
| 2019-09-30 | -$400.00K 10-Q · filed 2020-11-04 | -$800.00K derived: sum of 2 quarters · filed 2020-11-04 | -$1.20M 10-Q · filed 2020-11-04 |
| 2019-06-30 | -$400.00K 10-Q · filed 2020-08-05 | -$800.00K 10-Q · filed 2020-08-05 | |
| 2019-03-31 | -$400.00K 10-Q · filed 2020-05-07 | ||
| 2018-09-30 | -$400.00K 10-Q · filed 2019-11-07 | -$700.00K derived: sum of 2 quarters · filed 2019-11-07 | -$1.10M 10-Q · filed 2019-11-07 |
| 2018-06-30 | -$300.00K 10-Q · filed 2019-08-08 | -$700.00K 10-Q · filed 2019-08-08 | |
| 2018-03-31 | -$400.00K 10-Q · filed 2019-05-03 | ||
| 2017-09-30 | -$500.00K 10-Q · filed 2018-11-08 | -$1.00M derived: sum of 2 quarters · filed 2018-11-08 | -$1.50M 10-Q · filed 2018-11-08 |
| 2017-06-30 | -$500.00K 10-Q · filed 2018-08-09 | -$1.00M 10-Q · filed 2018-08-09 | |
| 2017-03-31 | -$500.00K 10-Q · filed 2018-05-03 | ||
| 2016-09-30 | -$500.00K 10-Q · filed 2017-11-09 | -$1.10M derived: sum of 2 quarters · filed 2017-11-09 | -$1.70M 10-Q · filed 2017-11-09 |
| 2016-06-30 | -$600.00K 10-Q · filed 2017-08-03 | -$1.20M 10-Q · filed 2017-08-03 | |
| 2016-03-31 | -$600.00K 10-Q · filed 2017-05-08 | ||
| 2015-09-30 | -$1.70M 10-Q · filed 2016-11-03 | -$3.40M derived: sum of 2 quarters · filed 2016-11-03 | -$5.00M 10-Q · filed 2016-11-03 |
| 2015-06-30 | -$1.70M 10-Q · filed 2016-08-04 | -$3.30M 10-Q · filed 2016-08-04 | |
| 2015-03-31 | -$1.60M 10-Q · filed 2016-05-06 | ||
| 2014-09-30 | -$1.00M 10-Q · filed 2015-11-05 | -$2.00M derived: sum of 2 quarters · filed 2015-11-05 | -$3.00M 10-Q · filed 2015-11-05 |
| 2014-06-30 | -$1.00M 10-Q · filed 2015-08-06 | -$2.00M 10-Q · filed 2015-08-06 | |
| 2014-03-31 | -$1.00M 10-Q · filed 2015-05-08 | ||
| 2013-09-30 | -$1.90M 10-Q · filed 2014-11-10 | -$3.80M derived: sum of 2 quarters · filed 2014-11-10 | -$5.70M 10-Q · filed 2014-11-10 |
| 2013-06-30 | -$1.90M 10-Q · filed 2014-08-07 | -$3.80M 10-Q · filed 2014-08-07 | |
| 2013-03-31 | -$1.90M 10-Q · filed 2014-05-07 | ||
| 2012-09-30 | -$2.00M 10-Q · filed 2013-11-07 | -$4.10M derived: sum of 2 quarters · filed 2013-11-07 | -$6.10M 10-Q · filed 2013-11-07 |
| 2012-06-30 | -$2.10M 10-Q · filed 2012-08-09 | -$4.10M 10-Q · filed 2013-08-08 | |
| 2012-03-31 | -$2.00M 10-Q · filed 2013-05-03 | ||
| 2011-09-30 | -$1.60M 10-Q · filed 2012-11-09 | -$3.10M derived: sum of 2 quarters · filed 2012-11-09 | -$4.70M 10-Q · filed 2012-11-09 |
| 2011-06-30 | -$1.50M 10-Q · filed 2012-08-09 | -$3.10M 10-Q · filed 2012-08-09 | |
| 2011-03-31 | -$1.60M 8-K · filed 2012-06-27 |
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