Ionis Pharmaceuticals, Inc. Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions
Ionis Pharmaceuticals, Inc. (IONS) reported Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions of $0 for the 12-month period ending 2025-12-31, per its 10-K filed 2026-02-26.
Financial Statements › Notes › Income Taxes › Income Tax Uncertainties
us-gaap:UnrecognizedTaxBenefitsDecreasesResultingFromPriorPeriodTaxPositions · last filed 2026-02-26
- Ionis Pharmaceuticals, Inc. unrecognized tax benefits, decrease resulting from prior period tax positions for fiscal 2025 was $0.00, a 100.00% decline from fiscal 2024.
- Ionis Pharmaceuticals, Inc. unrecognized tax benefits, decrease resulting from prior period tax positions for fiscal 2024 was $110.00K, a 85.07% decline from fiscal 2023.
- Ionis Pharmaceuticals, Inc. unrecognized tax benefits, decrease resulting from prior period tax positions for fiscal 2023 was $737.00K, a 176.03% increase from fiscal 2022.
- Ionis Pharmaceuticals, Inc. unrecognized tax benefits, decrease resulting from prior period tax positions for fiscal 2022 was $267.00K, a 61.58% decline from fiscal 2021.
| Period end | Unrecognized Tax Benefits, Decrease Resulting from Prior Period Tax Positions 12 month |
|---|---|
| 2025-12-31 | $0.00 10-K · filed 2026-02-26 |
| 2024-12-31 | $110.00K 10-K · filed 2026-02-26 |
| 2023-12-31 | $737.00K 10-K · filed 2026-02-26 |
| 2022-12-31 | $267.00K 10-K · filed 2025-02-19 |
| 2021-12-31 | $695.00K 10-K · filed 2024-02-21 |
| 2020-12-31 | $24.15M 10-K · filed 2023-02-22 |
| 2019-12-31 | $867.00K 10-K · filed 2022-02-25 |
| 2018-12-31 | $12.81M 10-K · filed 2021-02-24 |
| 2017-12-31 | $0.00 10-K · filed 2020-03-02 |
| 2016-12-31 | $0.00 10-K · filed 2019-03-01 |
| 2015-12-31 | $0.00 10-K · filed 2017-03-01 |
| 2014-12-31 | $1.65M 10-K · filed 2017-03-01 |
| 2013-12-31 | $0.00 10-K · filed 2016-02-26 |
| 2012-12-31 | $174.00K 10-K · filed 2015-03-02 |
| 2011-12-31 | $97.00K 10-K · filed 2014-03-03 |
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