RIBBON COMMUNICATIONS INC. Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate
RIBBON COMMUNICATIONS INC. (RBBN) had Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate of 4.09% 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 4.09%.
- 2024-12-31: Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 4.33%.
- 2023-12-31: Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 4.65%.
- 2022-12-31: Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate 4.74%.
| Period end | Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate |
|---|---|
| 2025-12-31 | 4.09% 10-K · filed 2026-02-26 |
| 2024-12-31 | 4.33% 10-K · filed 2026-02-26 |
| 2023-12-31 | 4.65% 10-K · filed 2025-02-27 |
| 2022-12-31 | 4.74% 10-K · filed 2024-02-28 |
| 2021-12-31 | 2.24% 10-K · filed 2023-03-31 |
| 2020-12-31 | 2.16% 10-K · filed 2022-03-11 |
| 2019-12-31 | 0.68% 10-K · filed 2021-02-26 |
| 2018-12-31 | 1.30% 10-K · filed 2020-02-28 |
| 2017-12-31 | 1.31% 10-K/A · filed 2019-03-05 |
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