Ionis Pharmaceuticals, Inc. logo

Ionis Pharmaceuticals, Inc. (ISI)

Market Closed
29 May, 20:00
XDUS XDUS
66. 20
-0.08
-0.12%
- Market Cap
- P/E Ratio
- Div Yield
20 Volume
-3.43 Eps
66.28
Previous Close
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Day Range
65.92 66.42
Year Range
28.68 73.22
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Summary

ISI closed Friday lower at €66.2, a decrease of -0.12% from Thursday's close, completing a monthly increase of 2.67% or €1.72. Over the past 12 months, ISI stock lost -0.93%.
ISI is not paying dividends to its shareholders.
The last earnings report, released on May 06, 2026, exceeded the consensus estimates by 0.78%. On average, the company has surpassed earnings expectations by 0.52%, based on the last three reports.
The stock of the company had never split.
The company's stock is traded on 8 different exchanges and in various currencies, with the primary listing on NASDAQ (NGS) (USD).

ISI Chart

Ionis Pharmaceuticals: Bull Run Can Continue As Major Catalysts Approach

Ionis Pharmaceuticals: Bull Run Can Continue As Major Catalysts Approach

Ionis Pharmaceuticals remains a Buy, with a compelling bull case despite a >125% 12-month share price increase. IONS is transitioning from niche indications to multi-billion-dollar markets, leveraging key partnerships and upcoming product launches. Projected 2030 revenues exceed $5bn, driven by Tryngolza, Dawnzera, and significant royalty streams from eplontersen, bepiroversen, and pelacarsen.

Seekingalpha | 6 days ago
Ionis Pharmaceuticals Eyes Big Year With TRYNGOLZA Decision, 5 Phase 3 Readouts

Ionis Pharmaceuticals Eyes Big Year With TRYNGOLZA Decision, 5 Phase 3 Readouts

Ionis Pharmaceuticals NASDAQ: IONS highlighted a busy slate of regulatory decisions, clinical readouts and partnered programs during a presentation at RBC Capital Markets' Global Healthcare Conference, with Chief Development Officer Holly Kordasiewicz saying the company is moving from recent launches into a broader commercial and late-stage development phase.

Marketbeat | 1 week ago
Ionis Pharmaceuticals, Inc. (IONS) Presents at RBC Capital Markets Global Healthcare Conference 2026 Transcript

Ionis Pharmaceuticals, Inc. (IONS) Presents at RBC Capital Markets Global Healthcare Conference 2026 Transcript

Ionis Pharmaceuticals, Inc. (IONS) Presents at RBC Capital Markets Global Healthcare Conference 2026 Transcript

Seekingalpha | 2 weeks ago

Ionis Pharmaceuticals, Inc. (ISI) FAQ

What is the stock price today?

The current price is €66.20.

On which exchange is it traded?

Ionis Pharmaceuticals, Inc. is listed on XDUS.

What is its stock symbol?

The ticker symbol is ISI.

Does it pay dividends? What is the current yield?

It does not pay dividends to its shareholders.

What is its market cap?

As of today, no market cap data is available.

Has Ionis Pharmaceuticals, Inc. ever had a stock split?

No, there has never been a stock split.

Ionis Pharmaceuticals, Inc. Profile

Biotechnology Industry
Healthcare Sector
Brett Monia CEO
XDUS Exchange
US4622221004 ISIN
US Country
1,069 Employees
17 Feb 2000 Last Dividend
- Last Split
17 May 1991 IPO Date

Overview

Ionis Pharmaceuticals, Inc. is a biotechnology company focused on the discovery and development of RNA-targeted therapeutics. Based in Carlsbad, California, the company has pioneered advances in drug discovery, particularly in the development of antisense therapies that modulate gene expression. Ionis Pharmaceuticals targets a wide range of diseases with a significant unmet medical need, including neurological disorders, cardiovascular diseases, and various rare diseases. Since its incorporation in 1989, Ionis has formed strategic collaborations with numerous leading biopharmaceutical companies, including Biogen, AstraZeneca, Bayer AG, GlaxoSmithKline plc, and several others, to advance its mission of delivering groundbreaking therapies to patients worldwide.

Products and Services

  • SPINRAZA: A groundbreaking therapy for spinal muscular atrophy (SMA) in both pediatric and adult patients. This product demonstrates Ionis’ commitment to addressing neurological disorders with advanced RNA-targeted treatments.
  • TEGSEDI: An antisense injection designed for the treatment of polyneuropathy in adults caused by hereditary transthyretin amyloidosis. This product highlights Ionis’ innovative approach to treating rare diseases through genetic modulation.
  • WAYLIVRA: An antisense medicine for patients with familial chylomicronemia syndrome (FCS) and familial partial lipodystrophy, showcasing Ionis’ capability in tackling lipid disorders.
  • Eplontersen: Currently in phase 3 study, Eplontersen is being developed as a treatment for all types of ATTR (transthyretin amyloidosis) through monthly self-administered subcutaneous injections, reflecting Ionis’ progression in self-care therapeutic solutions.
  • Olezarsen: In development for patients with FCS and severe hypertriglyceridemia (SHTG), Olezarsen represents Ionis’ ongoing efforts to combat severe lipid disorders.
  • Donidalorsen: Aimed at patients with hereditary angioedema, this candidate signifies Ionis’ investment in developing treatments for rare hereditary disorders.
  • ION363: Focused on treating patients with amyotrophic lateral sclerosis, ION363 underscores the company’s dedication to addressing debilitating neurological conditions.
  • Tofersen: Aimed to inhibit the production of superoxide dismutase 1, a key factor in certain neurological diseases, demonstrating Ionis’ focus on molecular level interventions.
  • Pelacarsen: Targeting established cardiovascular disease and elevated lipoprotein(a) levels, highlighting Ionis’ efforts towards cardiovascular health solutions.
  • Bepirovirsen: In development to inhibit the production of viral proteins associated with hepatitis B, showcasing Ionis’ venture into antiviral therapies.
  • Other notable developments include IONIS-FB-LRx, to inhibit complement factor B and address the alternative complement pathway, and ION224, aimed at reducing the production of diacylglycerol acyltransferase 2, further illustrating the breadth of Ionis’ therapeutic ambitions.

Contact Information

Address: 2855 Gazelle Court
Phone: 760 931 9200