Ionis Pharmaceuticals, Inc. Amortization of Debt Issuance Costs
Ionis Pharmaceuticals, Inc. (IONS) reported Amortization of Debt Issuance Costs of $4.15 million for the 6-month period ending 2026-06-30, per its 10-Q filed 2026-07-29.
Financial Statements › Expense Statement › Operating Expenses
us-gaap:AmortizationOfFinancingCosts · last filed 2026-07-29
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for the quarter ending 2026-06-30 was $1.80M, a 9.42% increase year-over-year.
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for the quarter ending 2026-03-31 was $2.35M, a 43.06% increase year-over-year.
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for the quarter ending 2025-12-31 was $1.97M, a 17.56% increase year-over-year.
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for the quarter ending 2025-09-30 was $1.65M, a 1.55% decline year-over-year.
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for fiscal 2025 was $6.91M, a 3.26% increase from fiscal 2024.
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for fiscal 2024 was $6.69M, a 5.69% increase from fiscal 2023.
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for fiscal 2023 was $6.33M, a 17.81% increase from fiscal 2022.
- Ionis Pharmaceuticals, Inc. amortization of debt issuance costs for fiscal 2022 was $5.37M, a 8.37% increase from fiscal 2021.
| Period end | Amortization of Debt Issuance Costs 3 month | Amortization of Debt Issuance Costs 3 month as first filed | Amortization of Debt Issuance Costs 6 month | Amortization of Debt Issuance Costs 6 month as first filed | Amortization of Debt Issuance Costs 9 month | Amortization of Debt Issuance Costs 9 month as first filed | Amortization of Debt Issuance Costs 12 month | Amortization of Debt Issuance Costs 12 month as first filed |
|---|---|---|---|---|---|---|---|---|
| 2026-06-30 | $1.80M derived: 10-Q 6 month − 10-Q 3 month · filed 2026-07-29 | $4.15M 10-Q · filed 2026-07-29 | $6.12M derived: sum of 3 quarters · filed 2026-07-29 | $7.77M derived: sum of 4 quarters · filed 2026-07-29 | ||||
| 2026-03-31 | $2.35M 10-Q · filed 2026-04-29 | $4.32M derived: sum of 2 quarters · filed 2026-04-29 | $5.97M derived: sum of 3 quarters · filed 2026-04-29 | $7.62M derived: sum of 4 quarters · filed 2026-07-29 | ||||
| 2025-12-31 | $1.97M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | $3.62M derived: sum of 2 quarters · filed 2026-02-26 | $5.27M derived: sum of 3 quarters · filed 2026-07-29 | $6.91M 10-K · filed 2026-02-26 | ||||
| 2025-09-30 | $1.65M derived: 10-Q 9 month − 10-Q 6 month · filed 2025-10-29 | $3.30M derived: sum of 2 quarters · filed 2026-07-29 | $4.94M 10-Q · filed 2025-10-29 | $6.61M derived: sum of 4 quarters · filed 2026-07-29 | ||||
| 2025-06-30 | $1.65M derived: 10-Q 6 month − 10-Q 3 month · filed 2026-07-29 | $3.29M 10-Q · filed 2026-07-29 | $4.96M derived: sum of 3 quarters · filed 2026-07-29 | $6.64M derived: sum of 4 quarters · filed 2026-07-29 | ||||
| 2025-03-31 | $1.64M 10-Q · filed 2026-04-29 | $3.32M derived: sum of 2 quarters · filed 2026-04-29 | $4.99M derived: sum of 3 quarters · filed 2026-04-29 | $6.67M derived: sum of 4 quarters · filed 2026-04-29 | ||||
| 2024-12-31 | $1.67M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | $3.35M derived: sum of 2 quarters · filed 2026-02-26 | $5.02M derived: sum of 3 quarters · filed 2026-02-26 | $6.69M 10-K · filed 2026-02-26 | ||||
| 2024-09-30 | $1.68M derived: 10-Q 9 month − 10-Q 6 month · filed 2025-10-29 | $3.35M derived: sum of 2 quarters · filed 2025-10-29 | $5.02M 10-Q · filed 2025-10-29 | $6.68M derived: sum of 4 quarters · filed 2026-02-26 | ||||
| 2024-06-30 | $1.67M derived: 10-Q 6 month − 10-Q 3 month · filed 2025-07-30 | $3.34M 10-Q · filed 2025-07-30 | $5.00M derived: sum of 3 quarters · filed 2026-02-26 | $6.70M derived: sum of 4 quarters · filed 2026-02-26 | ||||
| 2024-03-31 | $1.67M 10-Q · filed 2025-04-30 | $3.33M derived: sum of 2 quarters · filed 2026-02-26 | $5.03M derived: sum of 3 quarters · filed 2026-02-26 | $6.51M derived: sum of 4 quarters · filed 2026-02-26 | ||||
| 2023-12-31 | $1.66M derived: 10-K 12 month − 10-Q 9 month · filed 2026-02-26 | $3.36M derived: sum of 2 quarters · filed 2026-02-26 | $4.84M derived: sum of 3 quarters · filed 2026-02-26 | $6.33M 10-K · filed 2026-02-26 | ||||
| 2023-09-30 | $1.70M derived: 10-Q 9 month − 10-Q 6 month · filed 2024-11-06 | $3.18M derived: sum of 2 quarters · filed 2024-11-06 | $4.67M 10-Q · filed 2024-11-06 | $6.00M derived: sum of 4 quarters · filed 2025-02-19 | ||||
| 2023-06-30 | $1.48M derived: 10-Q 6 month − 10-Q 3 month · filed 2024-08-01 | $2.97M 10-Q · filed 2024-08-01 | $4.30M derived: sum of 3 quarters · filed 2025-02-19 | $5.65M derived: sum of 4 quarters · filed 2025-02-19 | ||||
| 2023-03-31 | $1.49M 10-Q · filed 2024-05-07 | $2.82M derived: sum of 2 quarters · filed 2025-02-19 | $4.17M derived: sum of 3 quarters · filed 2025-02-19 | $5.52M derived: sum of 4 quarters · filed 2025-02-19 | ||||
| 2022-12-31 | $1.34M derived: 10-K 12 month − 10-Q 9 month · filed 2025-02-19 | $2.69M derived: sum of 2 quarters · filed 2025-02-19 | $4.03M derived: sum of 3 quarters · filed 2025-02-19 | $5.37M 10-K · filed 2025-02-19 | ||||
| 2022-09-30 | $1.35M derived: 10-Q 9 month − 10-Q 6 month · filed 2023-11-02 | $2.69M derived: sum of 2 quarters · filed 2023-11-02 | $4.04M 10-Q · filed 2023-11-02 | $5.41M derived: sum of 4 quarters · filed 2024-02-21 | ||||
| 2022-06-30 | $1.34M derived: 10-Q 6 month − 10-Q 3 month · filed 2023-08-09 | $2.69M 10-Q · filed 2023-08-09 | $4.06M derived: sum of 3 quarters · filed 2024-02-21 | $5.45M derived: sum of 4 quarters · filed 2024-02-21 | ||||
| 2022-03-31 | $1.34M 10-Q · filed 2023-05-03 | $2.71M derived: sum of 2 quarters · filed 2024-02-21 | $4.11M derived: sum of 3 quarters · filed 2024-02-21 | $5.44M derived: sum of 4 quarters · filed 2024-02-21 | ||||
| 2021-12-31 | $1.37M derived: 10-K 12 month − 10-Q 9 month · filed 2024-02-21 | $2.77M derived: sum of 2 quarters · filed 2024-02-21 | $4.10M derived: sum of 3 quarters · filed 2024-02-21 | $4.96M 10-K · filed 2024-02-21 | ||||
| 2021-09-30 | $1.39M derived: 10-Q 9 month − 10-Q 6 month · filed 2022-11-09 | $2.73M derived: sum of 2 quarters · filed 2022-11-09 | $3.59M 10-Q · filed 2022-11-09 | $4.45M derived: sum of 4 quarters · filed 2023-02-22 | ||||
| 2021-06-30 | $1.33M derived: 10-Q 6 month − 10-Q 3 month · filed 2022-08-09 | $2.19M 10-Q · filed 2022-08-09 | $3.06M derived: sum of 3 quarters · filed 2023-02-22 | $3.92M derived: sum of 4 quarters · filed 2023-02-22 | ||||
| 2021-03-31 | $860.00K 10-Q · filed 2022-05-04 | $1.73M derived: sum of 2 quarters · filed 2023-02-22 | $2.59M derived: sum of 3 quarters · filed 2023-02-22 | $3.47M derived: sum of 4 quarters · filed 2023-02-22 | ||||
| 2020-12-31 | $867.00K derived: 10-K 12 month − 10-Q 9 month · filed 2023-02-22 | $1.73M derived: sum of 2 quarters · filed 2023-02-22 | $2.61M derived: sum of 3 quarters · filed 2023-02-22 | $3.25M 10-K · filed 2023-02-22 | $2.58M 10-K · filed 2021-02-24 | |||
| 2020-09-30 | $861.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2021-11-03 | $1.74M derived: sum of 2 quarters · filed 2021-11-03 | $2.39M 10-Q · filed 2021-11-03 | $1.88M 10-Q · filed 2020-11-04 | $3.88M derived: sum of 4 quarters · filed 2022-02-25 | |||
| 2020-06-30 | $880.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2021-08-04 | $1.53M 10-Q · filed 2021-08-04 | $1.24M 10-Q · filed 2020-08-05 | $3.02M derived: sum of 3 quarters · filed 2022-02-25 | $3.52M derived: sum of 4 quarters · filed 2022-02-25 | |||
| 2020-03-31 | $647.00K 10-Q · filed 2021-05-05 | $595.00K 10-Q · filed 2020-05-06 | $2.14M derived: sum of 2 quarters · filed 2022-02-25 | $2.63M derived: sum of 3 quarters · filed 2022-02-25 | $3.12M derived: sum of 4 quarters · filed 2022-02-25 | |||
| 2019-12-31 | $1.50M derived: 10-K 12 month − 10-Q 9 month · filed 2022-02-25 | $1.99M derived: sum of 2 quarters · filed 2022-02-25 | $2.47M derived: sum of 3 quarters · filed 2022-02-25 | $2.94M 10-K · filed 2022-02-25 | $1.94M 10-K · filed 2020-03-02 | |||
| 2019-09-30 | $491.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2020-11-04 | $974.00K derived: sum of 2 quarters · filed 2020-11-04 | $1.45M 10-Q · filed 2020-11-04 | $1.92M derived: sum of 4 quarters · filed 2021-02-24 | ||||
| 2019-06-30 | $483.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2020-08-05 | $957.00K 10-Q · filed 2020-08-05 | $1.42M derived: sum of 3 quarters · filed 2021-02-24 | $1.91M derived: sum of 4 quarters · filed 2021-02-24 | ||||
| 2019-03-31 | $474.00K 10-Q · filed 2020-05-06 | $941.00K derived: sum of 2 quarters · filed 2021-02-24 | $1.43M derived: sum of 3 quarters · filed 2021-02-24 | $1.84M derived: sum of 4 quarters · filed 2021-02-24 | ||||
| 2018-12-31 | $467.00K derived: 10-K 12 month − 10-Q 9 month · filed 2021-02-24 | $957.00K derived: sum of 2 quarters · filed 2021-02-24 | $1.37M derived: sum of 3 quarters · filed 2021-02-24 | $1.81M 10-K · filed 2021-02-24 | ||||
| 2018-09-30 | $490.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2019-11-06 | $902.00K derived: sum of 2 quarters · filed 2019-11-06 | $1.34M 10-Q · filed 2019-11-06 | $1.76M derived: sum of 4 quarters · filed 2020-03-02 | ||||
| 2018-06-30 | $412.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2019-08-08 | $853.00K 10-Q · filed 2019-08-08 | $1.27M derived: sum of 3 quarters · filed 2020-03-02 | $1.67M derived: sum of 4 quarters · filed 2020-03-02 | ||||
| 2018-03-31 | $441.00K 10-Q · filed 2019-05-09 | $855.00K derived: sum of 2 quarters · filed 2020-03-02 | $1.26M derived: sum of 3 quarters · filed 2020-03-02 | $1.66M derived: sum of 4 quarters · filed 2020-03-02 | ||||
| 2017-12-31 | $414.00K derived: 10-K 12 month − 10-Q 9 month · filed 2020-03-02 | $819.00K derived: sum of 2 quarters · filed 2020-03-02 | $1.22M derived: sum of 3 quarters · filed 2020-03-02 | $1.62M 10-K · filed 2020-03-02 | ||||
| 2017-09-30 | $405.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2018-11-06 | $806.00K derived: sum of 2 quarters · filed 2018-11-06 | $1.20M 10-Q · filed 2018-11-06 | $1.52M derived: sum of 4 quarters · filed 2019-03-01 | ||||
| 2017-06-30 | $401.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2018-08-07 | $797.00K 10-Q · filed 2018-08-07 | $1.11M derived: sum of 3 quarters · filed 2019-03-01 | $1.42M derived: sum of 4 quarters · filed 2019-03-01 | ||||
| 2017-03-31 | $396.00K 10-Q · filed 2018-05-07 | $711.00K derived: sum of 2 quarters · filed 2019-03-01 | $1.02M derived: sum of 3 quarters · filed 2019-03-01 | $1.32M derived: sum of 4 quarters · filed 2019-03-01 | ||||
| 2016-12-31 | $315.00K derived: 10-K 12 month − 10-Q 9 month · filed 2019-03-01 | $624.00K derived: sum of 2 quarters · filed 2019-03-01 | $927.00K derived: sum of 3 quarters · filed 2019-03-01 | $1.23M 10-K · filed 2019-03-01 | ||||
| 2016-09-30 | $309.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2017-11-07 | $612.00K derived: sum of 2 quarters · filed 2017-11-07 | $910.00K 10-Q · filed 2017-11-07 | $1.20M derived: sum of 4 quarters · filed 2018-02-28 | ||||
| 2016-06-30 | $303.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2017-08-09 | $601.00K 10-Q · filed 2017-08-09 | $893.00K derived: sum of 3 quarters · filed 2018-02-28 | $1.18M derived: sum of 4 quarters · filed 2018-02-28 | ||||
| 2016-03-31 | $298.00K 10-Q · filed 2017-05-09 | $590.00K derived: sum of 2 quarters · filed 2018-02-28 | $876.00K derived: sum of 3 quarters · filed 2018-02-28 | $1.16M derived: sum of 4 quarters · filed 2018-02-28 | ||||
| 2015-12-31 | $292.00K derived: 10-K 12 month − 10-Q 9 month · filed 2018-02-28 | $578.00K derived: sum of 2 quarters · filed 2018-02-28 | $858.00K derived: sum of 3 quarters · filed 2018-02-28 | $1.13M 10-K · filed 2018-02-28 | ||||
| 2015-09-30 | $286.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2016-11-09 | $566.00K derived: sum of 2 quarters · filed 2016-11-09 | $841.00K 10-Q · filed 2016-11-09 | $1.02M derived: sum of 4 quarters · filed 2017-03-01 | ||||
| 2015-06-30 | $280.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2016-08-09 | $555.00K 10-Q · filed 2016-08-09 | $738.00K derived: sum of 3 quarters · filed 2017-03-01 | $878.00K derived: sum of 4 quarters · filed 2017-03-01 | ||||
| 2015-03-31 | $275.00K 10-Q · filed 2016-05-05 | $458.00K derived: sum of 2 quarters · filed 2017-03-01 | $598.00K derived: sum of 3 quarters · filed 2017-03-01 | $735.00K derived: sum of 4 quarters · filed 2017-03-01 | ||||
| 2014-12-31 | $183.00K derived: 10-K 12 month − 10-Q 9 month · filed 2017-03-01 | $323.00K derived: sum of 2 quarters · filed 2017-03-01 | $460.00K derived: sum of 3 quarters · filed 2017-03-01 | $595.00K 10-K · filed 2017-03-01 | ||||
| 2014-09-30 | $140.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2015-11-09 | $277.00K derived: sum of 2 quarters · filed 2015-11-09 | $412.00K 10-Q · filed 2015-11-09 | $519.00K derived: sum of 4 quarters · filed 2016-02-26 | ||||
| 2014-06-30 | $137.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2015-08-05 | $272.00K 10-Q · filed 2015-08-05 | $379.00K derived: sum of 3 quarters · filed 2016-02-26 | $485.00K derived: sum of 4 quarters · filed 2016-02-26 | ||||
| 2014-03-31 | $135.00K 10-Q · filed 2015-05-05 | $242.00K derived: sum of 2 quarters · filed 2016-02-26 | $348.00K derived: sum of 3 quarters · filed 2016-02-26 | $450.00K derived: sum of 4 quarters · filed 2016-02-26 | ||||
| 2013-12-31 | $107.00K derived: 10-K 12 month − 10-Q 9 month · filed 2016-02-26 | $213.00K derived: sum of 2 quarters · filed 2016-02-26 | $315.00K derived: sum of 3 quarters · filed 2016-02-26 | $415.00K 10-K · filed 2016-02-26 | ||||
| 2013-09-30 | $106.00K derived: 10-Q 9 month − 10-Q 6 month · filed 2014-11-07 | $208.00K derived: sum of 2 quarters · filed 2014-11-07 | $308.00K 10-Q · filed 2014-11-07 | |||||
| 2013-06-30 | $102.00K derived: 10-Q 6 month − 10-Q 3 month · filed 2014-08-04 | $202.00K 10-Q · filed 2014-08-04 | ||||||
| 2013-03-31 | $100.00K 10-Q · filed 2014-05-06 | |||||||
| 2012-12-31 | $619.00K 10-K · filed 2015-03-02 | |||||||
| 2011-12-31 | $507.00K 10-K · filed 2014-03-03 | |||||||
| 2010-12-31 | $507.00K 10-K · filed 2013-02-28 | |||||||
| 2009-12-31 | $507.00K 10-K · filed 2012-02-29 | |||||||
| 2008-12-31 | $529.00K 10-K · filed 2011-03-01 |
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