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ALL
Market cap
$7.46B
EPS
-3.4
P/E ratio
--
Price to sales
8.61
Dividend yield
--
Beta
0.382352
Previous close
$43.96
Today's open
$43.16
Day's range
$43.05 - $44.95
52 week range
$42.08 - $86.74
show more
CEO
Brett P. Monia
Employees
1402
Headquarters
Carlsbad, CA
Exchange
Nasdaq Global Select
Shares outstanding
166184322
Issue type
Common Stock
Healthcare
Biotechnology & Life Sciences
Earnings Preview: Ionis Pharmaceuticals (IONS) Q3 Earnings Expected to Decline
Ionis Pharmaceuticals (IONS) doesn't possess the right combination of the two key ingredients for a likely earnings beat in its upcoming report. Get prepared with the key expectations.
Zacks Investment Research • Oct 28, 2026

Artisan Mid Cap Fund Q3 2026 Portfolio Update
The portfolio generated a negative absolute return but outpaced the Russell Midcap Growth Index. During the quarter, we initiated new positions in Manhattan Associates, Okta and Clean Harbors. We ended our investment campaign in Monolithic Power Systems, FTAI Aviation and Ionis Pharmaceuticals during the quarter.
Seeking Alpha • Oct 27, 2026

Ionis Pharmaceuticals: Compelling Long-Term Commercial Upside
Ionis Pharmaceuticals, Inc.'s independent launches should increasingly give it more exposure to its commercial successes going forward. For now, partner royalties also provide nice recurring revenues. And TRYNGOLZA's broader indication expands IONS revenue prospects as well. Similarly, DAWNZERA and ZANVASTRO help diversify IONS' pipeline. HIBSAGO also brings more royalty exposure to a different disease market.
Seeking Alpha • Oct 25, 2026

Ionis partner Roche announces new Phase 3 data showing sefaxersen significantly reduced proteinuria in people with IgA nephropathy (IgAN)
CARLSBAD, Calif.--(BUSINESS WIRE)--Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) partner Roche announced today late-breaking oral presentation data from the ongoing Phase 3 IMAgINATION study in adults with primary IgA nephropathy (IgAN) receiving optimized standard of care, demonstrating that investigational sefaxersen achieved a statistically significant and clinically meaningful 43.1% reduction in proteinuria (95% confidence interval [CI]: 32.5 - 52.0, P
Business Wire • Oct 23, 2026

Ionis ranked #1 on Science's Top Employers list
CARLSBAD, Calif.--(BUSINESS WIRE)--Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) today announced that the company was named the top employer to work for by Science in its annual Top Employers survey of the biotech and pharmaceutical industries. Rising from #2 last year to #1, Ionis was recognized for its industry-leading innovation, talented employees and strong values-based culture.“Being recognized as the #1 top employer by Science in only our second year of eligibility is a testament to the extr.
Business Wire • Oct 22, 2026

Ionis partner GSK announces Hibsago (bepirovirsen) approved in the U.S. for the treatment of chronic hepatitis B (CHB)
CARLSBAD, Calif.--(BUSINESS WIRE)--Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) partner GSK today announced that the U.S. Food and Drug Administration (FDA) has approved Hibsago (bepirovirsen) for the treatment of chronic hepatitis B (CHB) virus infection in combination with nucleos(t)ide analogue reverse transcriptase inhibitor (NrtI) therapy in adult patients without cirrhosis, receiving NrtI therapy for at least 6 months, who have suppressed HBV deoxyribonucleic acid (DNA), and with hepatitis.
Business Wire • Oct 21, 2026

TRYNGOLZA® (olezarsen) recommended for approval in the EU by CHMP for severe hypertriglyceridemia (sHTG)
CARLSBAD, Calif.--(BUSINESS WIRE)--Ionis Pharmaceuticals, Inc. (Nasdaq: IONS) today announced that the Committee for Medicinal Products for Human Use (CHMP) of the European Medicines Agency (EMA) has adopted a positive opinion recommending the indication extension for TRYNGOLZA® (olezarsen) as an adjunct to diet, in combination with other lipid-lowering therapies, for the treatment of adult patients with severe hypertriglyceridemia (sHTG, fasting triglyceride levels of ≥880 mg/dL [≥10 mmol/L]).
Business Wire • Oct 16, 2026

Alnylam vs. Ionis: Here's the Better Bad-News Buy
Alnylam cut its full-year revenue guidance due to slower-than-expected sales for Amvuttra. Ionis experienced two pipeline setbacks on the same day in July.
The Motley Fool • Oct 10, 2026

NVS Wins FDA Nod for Label Expansion of Immunology Drug Rhapsido
Novartis wins FDA approval for Rhapsido in symptomatic dermographism, expanding its chronic hives opportunity as pipeline setbacks raise pressure for growth.
Zacks Investment Research • Oct 8, 2026

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.
Zacks Investment Research • Sep 28, 2026

¹ Disclosures

Open an M1 investment account to buy and sell Ionis Pharmaceuticals Inc. commission-free¹. Build wealth for the long term using automated trading and transfers.