IONIS PHARMACEUTICALS INC
IONSNASDAQTrading Snapshot
- Day Range
- $45.22 β $46.53
- 52-Week Range
- $43.01 β $86.74
- Volume
- $5.08B
- Avg Volume
- $5.43B
- Shares Outstanding
- 166.2M
- Next Earnings
- Nov 3, 2026
Fundamentals Snapshot
- Annual Revenue
- $944M
- Last Q Revenue
- $268M
- P/E Ratio
- -13.2
- P/S Ratio
- 8.7x
- EPS (TTM)
- $-3.41
- Dividend Yield
- 0.00%
- Dilution (1yr)
- +2.5%
Why Investors Own IONS
- βHigh-growth profile β revenue up +52.8% YoY with expanding US Equity exposure.
- βHealthy economics β 27% gross margin and 18% free-cash-flow margin.
- βNew products and segments could unlock additional revenue streams.
Execution delays, intensifying competition, and valuation compression if growth decelerates.
IONIS PHARMACEUTICALS INC
IONSAbout IONIS PHARMACEUTICALS INC
Founded in 1989 and headquartered in Carlsbad, California, Ionis Pharmaceuticals, Inc. is a biopharmaceutical company specializing in the discovery and development of RNA-targeted therapies within the United States. Its commercial portfolio includes three key medications: SPINRAZA, prescribed for spinal muscular atrophy (SMA) in both children and adults; TEGSEDI, an injectable treatment targeting polyneuropathy associated with hereditary transthyretin-mediated amyloidosis in adult patients; and WAYLIVRA, which addresses familial chylomicronemia syndrome and familial partial lipodystrophy. Ionis also maintains a robust pipeline, with several drug candidates currently in Phase 3 clinical trials. These include Eplontersen, a monthly self-administered subcutaneous injection designed for all forms of TTR amyloidosis; Olezarsen, intended for individuals with severe hypertriglyceridemia (SHTG); Donidalorsen, for patients suffering from hereditary angioedema; ION363, aimed at amyotrophic lateral sclerosis (ALS); Pelacarsen, developed for those with established cardiovascular disease and elevated lipoprotein(a); and Tofersen, which works by inhibiting the production of superoxide dismutase 1. Beyond these late-stage assets, the company is actively researching treatments for metabolic, infectious, renal, and ophthalmic diseases, as well as various types of cancer. The firm engages in significant collaborations, notably a strategic partnership with Biogen Inc. Additionally, it holds licensing and collaboration agreements with AstraZeneca, Bayer AG, GlaxoSmithKline plc, Novartis AG, Roche, Janssen Biotech, Inc., and Flamingo Therapeutics, Inc.
Otter Score Breakdown
How it's scoredFive components, each rated 1β5β and equally weighted (20%), averaged to a 0β100 score:π Quality β gross marginπ Growth β revenue YoYβοΈ Valuation β P/S ratioβ‘ Momentum β 30-day price changeπ§ Dilution β 1-yr share issuance (buybacks score higher)Analyst Price Target
βLatest News & Updates
4 RNA Therapeutics Stocks Leading the Next Wave of Innovation
RNA therapeutics are gaining momentum as Alnylam, Ionis, Wave Life Sciences and Arcturus advance innovative treatments targeting a range of diseases.

Ionis Delivers Positive Late-Stage Results for Two Partnered Drugs
IONS posts positive phase III results for two partnered drugs, with ulefnersen meeting its ALS endpoint and sefaxersen cutting proteinuria.

Ionis and Roche Advance First RNA-Targeted Therapy for Autoimmune Kidney Disease
Ionis Pharmaceuticals Inc. (NASDAQ:IONS) and licensing partner Roche Holdings AG (OTC:RHHBY) on Wednesday shared prespecified interim outcomes from their ongoing Phase 3 IMAgINATION trial of investigational sefaxersen in

Ionis announces positive interim data from partner Roche's Phase 3 IMAgINATION study in IgA nephropathy (IgAN)
CARLSBAD, Calif.--(BUSINESS WIRE)--Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) and partner Roche today announced positive prespecified interim results from the ongoing Phase 3 IMAgINATION study evaluating investigational

Otsuka, Ionis' experimental ALS drug meets main goal in late-stage study
Otsuka Pharmaceutical and Ionis Pharmaceuticals said on Tuesday their experimental drug met the main βgoal of a late-stage study in patients βwith a rare inherited form of amyotrophic lateral sclerosis, or ALS.

Otsuka Announces Transformative Phase 3 FUSION Results for Ulefnersen, Bringing the FUS-ALS Community Closer to a Potential Targeted Treatment
PRINCETON, N.J. & TOKYO--(BUSINESS WIRE)--Otsuka Pharmaceutical Development & Commercialization, Inc., Otsuka Pharmaceutical Co., Ltd. (Otsuka) and Ionis Pharmaceuticals, Inc. today announced positive topline results fro