Ionis Pharmaceuticals IncIONS
What Ionis Pharmaceuticals Inc does.
For three decades, we have invented medicines that bring better futures to people with serious diseases. As a pioneer in RNA-targeted medicines with a deep understanding of disease biology and an industry-leading drug discovery technology, we are driven to deliver innovative, life-changing advances for patients.
In the last year, we delivered on our strategy to create accelerating value for all our stakeholders. With two independent commercial launches now underway, we transitioned into a fully integrated commercial-stage biotechnology company. We currently have seven marketed medicines to treat serious diseases: TRYNGOLZA (olezarsen), DAWNZERA (donidalorsen), WAINUA (eplontersen), SPINRAZA (nusinersen), QALSODY (tofersen), TEGSEDI (inotersen) and WAYLIVRA (volanesorsen).
In addition to our currently marketed medicines, we are also positioned to independently launch two medicines in 2026, assuming regulatory approval. The FDA recently granted priority review of olezarsen for the treatment of severe hypertriglyceridemia, or sHTG, with an action date of June 30, 2026 under the Prescription Drug User Fee Act, or PDUFA. We are on track to launch olezarsen following anticipated approval. We also submitted the NDA for zilganersen in January 2026 and plan to launch zilganersen in the second half of 2026 for the treatment of Alexander disease, or AxD. We also have a rich innovative late- and mid-stage pipeline across our focus areas of neurology, cardiometabolic diseases and select areas of high patient needs. We currently have three wholly owned medicines in late-stage development, including obudanersen (formerly ION582) for Angelman syndrome, or AS, which we advanced into a Phase 3 study in the second quarter of 2025. Additionally, we have six partnered medicines in late-stage development. We also have additional medicines in early and mid-stage development. We delivered multiple positive data readouts in the last year from our late- and mid-stage pipeline, including positive data for olezarsen in sHTG, zilganersen in AxD, bepirovirsen in chronic hepatitis B, or CHB, obudanersen in AS and sapablursen in polycythemia vera, or PV. And we further advanced our next-generation technologies for RNA-targeted medicines, including advancing our first program using our mesyl phosphoramidate, or MsPA, backbone into clinical development.
Revenue and profit, by fiscal year.
| Fiscal year | 2020 | 2021 | 2022 | 2023 | 2024 | 2025 |
|---|---|---|---|---|---|---|
| Revenue | $729.3M | $810.5M | $587.4M | $787.6M | $705.1M | $943.7M |
| Net income | -$444.3M | -$28.6M | -$269.7M | -$366.3M | -$453.9M | -$381.4M |
| Free cash flow | $772,000 | $18.8M | -$290.1M | -$331.3M | -$546.2M | -$320.0M |
More on IONS.
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Figures from Ionis Pharmaceuticals Inc's filings with the U.S. SEC, standardised automatically; prices are end-of-day closes. Not financial advice.