Ionis Pharmaceuticals, Inc. Deferred Tax Assets, Operating Loss Carryforwards
Ionis Pharmaceuticals, Inc. (IONS) had Deferred Tax Assets, Operating Loss Carryforwards of $290.85 million as of 2025-12-31, per its 10-K filed 2026-02-26.
Financial Statements › Notes › Income Taxes › Components of Deferred Tax Assets and Liabilities › Deferred Tax Assets, Net › Deferred Tax Assets, Net of Valuation Allowance › Deferred Tax Assets, Gross
us-gaap:DeferredTaxAssetsOperatingLossCarryforwards · last filed 2026-02-26
- 2025-12-31: Deferred Tax Assets, Operating Loss Carryforwards $290.85M.
- 2024-12-31: Deferred Tax Assets, Operating Loss Carryforwards $95.85M.
- 2023-12-31: Deferred Tax Assets, Operating Loss Carryforwards $77.96M.
- 2022-12-31: Deferred Tax Assets, Operating Loss Carryforwards $87.80M.
| Period end | Deferred Tax Assets, Operating Loss Carryforwards |
|---|---|
| 2025-12-31 | $290.85M 10-K · filed 2026-02-26 |
| 2024-12-31 | $95.85M 10-K · filed 2026-02-26 |
| 2023-12-31 | $77.96M 10-K · filed 2025-02-19 |
| 2022-12-31 | $87.80M 10-K · filed 2024-02-21 |
| 2021-12-31 | $85.60M 10-K · filed 2023-02-22 |
| 2020-12-31 | $83.68M 10-K · filed 2022-02-25 |
| 2019-12-31 | $20.19M 10-K · filed 2021-02-24 |
| 2018-12-31 | $89.72M 10-K · filed 2020-03-02 |
| 2017-12-31 | $153.57M 10-K · filed 2019-03-01 |
| 2016-12-31 | $194.37M 10-K · filed 2018-02-28 |
| 2015-12-31 | $218.49M 10-K · filed 2017-03-01 |
| 2014-12-31 | $231.65M 10-K · filed 2016-02-26 |
| 2013-12-31 | $260.46M 10-K · filed 2015-03-02 |
| 2012-12-31 | $244.54M 10-K · filed 2014-03-03 |
| 2011-12-31 | $195.40M 10-K · filed 2013-02-28 |
| 2010-12-31 | $148.69M 10-K · filed 2012-02-29 |
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