ADTRAN Holdings, Inc. Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
ADTRAN Holdings, Inc. (ADTN) had Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate of 3.10% as of 2025-12-31, per its 10-K filed 2026-02-26.
Financial Statements › Notes › Compensation Related Costs › Retirement Benefits › Defined Benefit Plan › Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation
us-gaap:DefinedBenefitPlanAssumptionsUsedCalculatingBenefitObligationDiscountRate · last filed 2026-02-26
- 2025-12-31: Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 3.10%.
- 2024-12-31: Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 2.70%; Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate as first filed 2.73%.
- 2023-12-31: Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 2.84%; Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate as first filed 3.17%.
- 2022-12-31: Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 3.10%.
| Period end | Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate | Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate as first filed |
|---|---|---|
| 2025-12-31 | 3.10% 10-K · filed 2026-02-26 | |
| 2024-12-31 | 2.70% 10-K · filed 2026-02-26 | 2.73% 10-K · filed 2025-03-03 |
| 2023-12-31 | 2.84% 10-K/A · filed 2025-05-20 | 3.17% 10-K · filed 2024-03-15 |
| 2022-12-31 | 3.10% 10-K · filed 2024-03-15 | |
| 2021-12-31 | 1.16% 10-K · filed 2024-03-15 | |
| 2020-12-31 | 0.69% 10-K/A · filed 2023-08-14 | |
| 2019-12-31 | 1.00% 10-K · filed 2021-02-26 | |
| 2018-12-31 | 1.75% 10-K · filed 2020-02-25 | |
| 2017-12-31 | 2.13% 10-K · filed 2019-02-28 | |
| 2016-12-31 | 1.90% 10-K · filed 2018-02-23 | |
| 2015-12-31 | 2.64% 10-K · filed 2017-02-24 | |
| 2014-12-31 | 2.20% 10-K · filed 2016-02-24 | |
| 2013-12-31 | 3.70% 10-K · filed 2015-02-24 | |
| 2012-12-31 | 3.50% 10-K · filed 2014-02-27 |
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