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Ionis Pharmaceuticals Stock Price, News & Analysis

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Welcome to our dedicated page for Ionis Pharmaceuticals news (Ticker: IONS), a resource for investors and traders seeking the latest updates and insights on Ionis Pharmaceuticals stock.

Ionis Pharmaceuticals, Inc. (NASDAQ: IONS) is a biotechnology company that focuses on RNA-targeted medicines for serious diseases, and its news flow reflects this emphasis on clinical, regulatory and commercial milestones. Company updates frequently highlight progress in neurology and cardiometabolic programs, as well as developments in rare conditions where few or no disease-modifying treatments exist.

Recent Ionis news has featured pivotal clinical trial readouts, such as Phase 3 CORE and CORE2 results for olezarsen in severe hypertriglyceridemia, showing large reductions in triglyceride levels and acute pancreatitis events with favorable safety and tolerability. The company has also reported positive pivotal data for zilganersen in Alexander disease, describing evidence of disease-modifying impact in this rare and often fatal neurological condition.

Regulatory and commercial milestones are another major theme. Ionis has announced FDA approval of TRYNGOLZA (olezarsen) for familial chylomicronemia syndrome and DAWNZERA (donidalorsen) for prophylaxis to prevent attacks of hereditary angioedema in adults and adolescents 12 years and older. News items also cover FDA Breakthrough Therapy designations for olezarsen in severe hypertriglyceridemia and zilganersen in Alexander disease, as well as European regulatory opinions and anticipated launches.

Partnered program updates appear regularly, including GSK’s Phase 3 B-Well 1 and B-Well 2 results for bepirovirsen in chronic hepatitis B, Novartis’ Lp(a) HORIZON study of pelacarsen in cardiovascular disease, and AstraZeneca collaborations on WAINUA and eplontersen. Investors can also find coverage of Ionis’ financing activities, such as convertible note offerings, and its participation in healthcare and investor conferences.

For followers of IONS stock, this news page provides a centralized view of Ionis’ clinical trial milestones, FDA and EMA interactions, product launches, collaboration updates and capital markets events, helping readers understand how the company’s RNA-targeted pipeline and marketed medicines are evolving over time.

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Ionis Pharmaceuticals intends to offer $500.0 million of Convertible Senior Notes due 2026 in a private placement to qualified institutional buyers. An option for an additional $75.0 million is also available. Proceeds will be used to repurchase certain existing notes, cover convertible note hedge transactions, and support general corporate purposes including R&D and infrastructure expansion. The notes and associated warrants are not registered under the Securities Act and may not be sold in the U.S. without registration or an exemption.

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Ionis Pharmaceuticals announced the initiation of a Phase 3 clinical trial for ION363, an investigational antisense medicine targeting FUS mutations in patients with FUS-ALS, a form of amyotrophic lateral sclerosis. The trial aims to demonstrate the efficacy of ION363, which has shown promise in preclinical models by reducing the production of the FUS protein. The global study will enroll up to 64 patients over a 102-week period, marking a significant step towards addressing the urgent need for treatments in this aggressive disease.

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Ionis Pharmaceuticals, Inc. (NASDAQ: IONS) announced positive results from a Phase 2 clinical study of IONIS-PKK-LRx for hereditary angioedema (HAE). The treatment demonstrated a 90% mean reduction in monthly HAE attacks compared to placebo, with 92% of patients attack-free in weeks five to 17. IONIS-PKK-LRx, developed using advanced antisense technology, could potentially be a best-in-class prophylactic therapy. The study involved 20 adults, showing mild adverse events. Ionis plans to present full findings at a medical conference later this year.

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Ionis Pharmaceuticals (Nasdaq: IONS) announced participation in two upcoming investor conferences:

  • 3rd Annual Stifel CNS Day on April 1, 2021
  • 20th Annual Needham Healthcare Conference on April 12, 2021

Updates on presentation details will be available on the company's website. A live webcast will be accessible in the Investors & Media section, with replays available within 48 hours. Ionis, a pioneer in RNA-targeted therapies, boasts three marketed medicines and a robust pipeline, especially in neurological and cardiometabolic fields.

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Ionis Pharmaceuticals announced that Roche has decided to discontinue dosing in the Phase III GENERATION HD1 study of tominersen for Huntington's disease based on a review of its potential benefit/risk profile. Although no new safety signals were found, the decision reflects concerns about the treatment's efficacy. Participants will still be monitored for safety and clinical outcomes. The open-label GEN-EXTEND study will also pause dosing, while other studies continue. Roche will share further information once the full data is available.

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Ionis Pharmaceuticals has launched the Janice Wiesman Young Investigator Grant Program to support U.S. researchers focusing on transthyretin amyloidosis (ATTR). The program commemorates Dr. Janice Wiesman and will award $50,000 annually to two young investigators for up to two years. This initiative aims to enhance understanding, diagnosis, and management of ATTR, a rare and progressive disease affecting various organs. Applications are open until April 2, 2021.

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Ionis Pharmaceuticals reported its financial results for Q4 2020, achieving total revenues of $729 million, with net income of $111 million on a non-GAAP basis. The company aims to commercialize its pipeline, driven by strong momentum from marketed products like SPINRAZA, which generated $2 billion in sales. Ionis plans to expand its pipeline, targeting 12 or more products in the market by 2026. The company ended 2020 with a robust cash position of $1.9 billion, which supports further investments in its pipeline.

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Ionis Pharmaceuticals (Nasdaq: IONS), a leader in RNA-targeted therapeutics, will participate in upcoming virtual investor conferences, including the SVB Leerink 10th Annual Global Healthcare Conference on February 26, the Oppenheimer 31st Annual Healthcare Conference on March 17, and the J.P. Morgan 10th Annual Napa Valley Forum on March 29, 2021. Presentation details will be available on the Ionis website. The company is known for its pioneering work in RNA-targeted therapies and has a strong pipeline in neurological and cardiometabolic treatments.

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Ionis Pharmaceuticals will host a live webcast on February 24, 2021, at 9:00 a.m. Eastern Time to discuss its 2020 financial results and provide updates on its pipeline and business progress. The webcast will be accessible via the company's website, with a replay available for a limited time. With over 30 years of experience in RNA-targeted therapy, Ionis has developed three marketed medicines and boasts a strong late-stage pipeline.

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Ionis Pharmaceuticals (NASDAQ: IONS) announced the appointment of Dr. Eugene Schneider as executive vice president and chief clinical development officer. Since joining Ionis in 2013, he has contributed to over 20 clinical trials globally. Dr. Schneider brings extensive experience from his previous roles, including developing enzyme replacement therapies and overseeing clinical research. His addition is expected to strengthen Ionis' leadership and enhance their portfolio of innovative antisense medicines aimed at treating unmet medical needs. The company boasts a pipeline of over 40 novel therapies.

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FAQ

What is the current stock price of Ionis Pharmaceuticals (IONS)?

The current stock price of Ionis Pharmaceuticals (IONS) is $75.66 as of March 10, 2026.

What is the market cap of Ionis Pharmaceuticals (IONS)?

The market cap of Ionis Pharmaceuticals (IONS) is approximately 12.4B.

IONS Rankings

IONS Stock Data

12.45B
160.38M
Biotechnology
Pharmaceutical Preparations
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United States
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