ADTRAN Holdings, Inc. Unrecognized Tax Benefits that Would Impact Effective Tax Rate
ADTRAN Holdings, Inc. (ADTN) had Unrecognized Tax Benefits that Would Impact Effective Tax Rate of $300.00 thousand as of 2025-12-31, per its 10-K filed 2026-02-26.
Financial Statements › Notes › Income Taxes › Income Tax Uncertainties
us-gaap:UnrecognizedTaxBenefitsThatWouldImpactEffectiveTaxRate · last filed 2026-02-26
- 2025-12-31: Unrecognized Tax Benefits that Would Impact Effective Tax Rate $300.00K.
- 2024-12-31: Unrecognized Tax Benefits that Would Impact Effective Tax Rate $300.00K.
- 2023-12-31: Unrecognized Tax Benefits that Would Impact Effective Tax Rate $1.00M.
- 2022-12-31: Unrecognized Tax Benefits that Would Impact Effective Tax Rate $17.90M.
| Period end | Unrecognized Tax Benefits that Would Impact Effective Tax Rate |
|---|---|
| 2025-12-31 | $300.00K 10-K · filed 2026-02-26 |
| 2024-12-31 | $300.00K 10-K · filed 2026-02-26 |
| 2023-12-31 | $1.00M 10-K · filed 2026-02-26 |
| 2022-12-31 | $17.90M 10-K/A · filed 2025-05-20 |
| 2021-12-31 | $17.80M 10-K · filed 2024-03-15 |
| 2021-09-30 | $18.10M 10-Q · filed 2021-11-05 |
| 2020-12-31 | $1.00M 10-K/A · filed 2023-08-14 |
| 2019-12-31 | $1.40M 10-K · filed 2022-02-25 |
| 2018-12-31 | $1.70M 10-K · filed 2021-02-26 |
| 2017-12-31 | $2.20M 10-K · filed 2020-02-25 |
| 2016-12-31 | $1.70M 10-K · filed 2019-02-28 |
| 2015-12-31 | $1.80M 10-K · filed 2018-02-23 |
| 2014-12-31 | $2.60M 10-K · filed 2017-02-24 |
| 2013-12-31 | $2.50M 10-K · filed 2016-02-24 |
| 2012-12-31 | $2.20M 10-K · filed 2015-02-24 |
| 2011-12-31 | $2.40M 10-K · filed 2014-02-27 |
| 2010-12-31 | $2.00M 10-K · filed 2013-02-28 |
| 2009-12-31 | $2.30M 10-K · filed 2012-02-29 |
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