Ionis Pharmaceuticals, Inc. (IONS)

For informational purposes only. Not financial advice.

Ionis Pharmaceuticals, Inc. (IONS) is a publicly traded company trading at $78.53 with a market cap of 12479068563. It holds a cautious AI score of 43/100 based on fundamental, technical, and sentiment analysis.

Ionis Pharmaceuticals pioneers RNA-targeted therapeutics, addressing unmet needs in neurological, cardiometabolic, and other severe diseases. With a robust pipeline and strategic partnerships, Ionis is positioned to transform patient care through innovative medicines.

64/100 AI Score MCap 12B Vol 2M

Company Overview

CEOBrett Monia
Employees1069
HeadquartersCarlsbad, CA, US
IPO Year1991

Ionis Pharmaceuticals is a leader in RNA-targeted therapeutics, leveraging its innovative platform to develop treatments for severe diseases with significant unmet needs, driving long-term growth through strategic collaborations and a robust pipeline of novel medicines.

Investment Thesis

Ionis Pharmaceuticals presents a compelling investment opportunity due to its leadership in RNA-targeted therapeutics and its robust pipeline of novel medicines. The company's established platform has already yielded commercially successful treatments like SPINRAZA, demonstrating its ability to develop and market innovative therapies. Key value drivers include the potential approval and commercialization of several late-stage drug candidates, such as Eplontersen for TTR amyloidosis and Olezarsen for severe hypertriglyceridemia. These catalysts, coupled with ongoing collaborations with major pharmaceutical companies, position Ionis for sustained growth. With a market capitalization of $13.70 billion and a high gross margin of 98.8%, Ionis offers a unique opportunity to invest in a company at the forefront of RNA-targeted drug development.

Key Highlights

  • Market capitalization of $13.70 billion reflects investor confidence in Ionis's pipeline and technology.
  • Gross margin of 98.8% demonstrates the high value and profitability of Ionis's RNA-targeted therapeutics.
  • SPINRAZA, a key product for spinal muscular atrophy, continues to generate substantial revenue through collaboration with Biogen.
  • Extensive pipeline of Phase 3 drug candidates targeting a wide range of diseases, including TTR amyloidosis and severe hypertriglyceridemia.
  • Strategic collaborations with major pharmaceutical companies, including AstraZeneca, Bayer AG, and Roche, validate Ionis's technology and provide financial support for drug development.

Competitors

Strengths

  • Innovative RNA-targeted drug development platform.
  • Robust pipeline of drug candidates in various stages of clinical development.
  • Established partnerships with major pharmaceutical companies.
  • Strong intellectual property protection.

Weaknesses

  • Negative P/E ratio indicates current lack of profitability.
  • Reliance on partnerships for drug development and commercialization.
  • High research and development expenses.
  • Potential for clinical trial failures and regulatory setbacks.

Catalysts

  • Upcoming: Regulatory approval and commercialization of Eplontersen for TTR amyloidosis.
  • Upcoming: Regulatory approval and commercialization of Olezarsen for severe hypertriglyceridemia (SHTG).
  • Upcoming: Data readouts from ongoing clinical trials of pipeline drug candidates.
  • Ongoing: Continued revenue growth from SPINRAZA sales.
  • Ongoing: Expansion of partnerships with pharmaceutical companies to advance drug development programs.

Risks

  • Potential: Clinical trial failures and regulatory setbacks for pipeline drug candidates.
  • Potential: Competition from other biotechnology and pharmaceutical companies.
  • Potential: Patent challenges and intellectual property disputes.
  • Ongoing: Reliance on partnerships for drug development and commercialization.
  • Ongoing: High research and development expenses.

Growth Opportunities

  • Growth opportunity 1: Eplontersen for TTR Amyloidosis: Eplontersen, a monthly self-administered subcutaneous injection, targets all types of TTR amyloidosis, a progressive and fatal disease. The market for TTR amyloidosis treatments is expected to grow significantly, driven by increased awareness and improved diagnostic capabilities. Ionis has a competitive advantage with Eplontersen due to its potential for improved efficacy and patient convenience. Approval and commercialization of Eplontersen could generate substantial revenue, with peak sales estimated to reach billions of dollars.
  • Growth opportunity 2: Olezarsen for Severe Hypertriglyceridemia (SHTG): Olezarsen addresses the unmet need for patients with severe hypertriglyceridemia (SHTG), a condition associated with increased risk of pancreatitis and cardiovascular disease. The market for SHTG treatments is underserved, presenting a significant opportunity for Ionis. Olezarsen has the potential to become a leading therapy in this space, driven by its efficacy in reducing triglyceride levels. Successful clinical trials and regulatory approval could drive significant revenue growth.
  • Growth opportunity 3: Donidalorsen for Hereditary Angioedema: Donidalorsen targets hereditary angioedema, a rare genetic disorder characterized by recurrent episodes of swelling. The market for hereditary angioedema treatments is growing, driven by increased awareness and improved diagnostic capabilities. Donidalorsen has the potential to become a preferred therapy due to its efficacy and safety profile. Successful clinical trials and regulatory approval could generate substantial revenue.
  • Growth opportunity 4: Pelacarsen for Elevated Lipoprotein(a): Pelacarsen is being developed for patients with established cardiovascular disease and elevated lipoprotein(a), a genetic risk factor for heart disease. The market for lipoprotein(a)-lowering therapies is emerging, driven by increasing awareness of the role of lipoprotein(a) in cardiovascular risk. Pelacarsen has the potential to become a leading therapy in this space, driven by its efficacy in reducing lipoprotein(a) levels. Successful clinical trials and regulatory approval could drive significant revenue growth.
  • Growth opportunity 5: Expansion of SPINRAZA into New Markets and Indications: SPINRAZA, Ionis's approved treatment for spinal muscular atrophy (SMA), continues to generate substantial revenue. Ionis can further expand the market for SPINRAZA by pursuing regulatory approvals in new geographies and exploring its potential in additional indications. This could involve conducting clinical trials to evaluate SPINRAZA in different SMA subtypes or in related neurological disorders. Expansion of SPINRAZA could drive continued revenue growth and solidify Ionis's position as a leader in RNA-targeted therapeutics.

Opportunities

  • Expansion of existing drugs into new markets and indications.
  • Development of new RNA-targeted therapies for unmet medical needs.
  • Strategic acquisitions and collaborations to expand its pipeline and capabilities.
  • Increasing adoption of RNA-targeted therapeutics in the pharmaceutical industry.

Threats

  • Competition from other biotechnology and pharmaceutical companies.
  • Regulatory hurdles and delays in drug approval processes.
  • Patent challenges and intellectual property disputes.
  • Changes in healthcare policies and reimbursement rates.

Competitive Advantages

  • Proprietary RNA-targeted drug development platform.
  • Extensive patent portfolio protecting its drug candidates and technology.
  • Established partnerships with leading pharmaceutical companies.
  • Deep expertise in RNA biology and drug development.

About

Founded in 1989 and headquartered in Carlsbad, California, Ionis Pharmaceuticals, Inc. has established itself as a pioneering force in the discovery and development of RNA-targeted therapeutics. The company's innovative platform allows it to design drugs that selectively bind to RNA, modulating the production of disease-causing proteins. Ionis's portfolio includes commercially available treatments such as SPINRAZA, developed in collaboration with Biogen, for spinal muscular atrophy (SMA), a debilitating genetic disorder affecting infants and children. Additionally, Ionis markets TEGSEDI for the treatment of polyneuropathy of hereditary transthyretin-mediated amyloidosis in adults, and WAYLIVRA, a treatment for familial chylomicronemia syndrome and familial partial lipodystrophy. Beyond its marketed products, Ionis boasts a robust pipeline of drug candidates in various stages of clinical development, targeting a wide range of diseases, including neurological, cardiometabolic, and renal disorders. These include Eplontersen, Olezarsen, Donidalorsen, ION363, Pelacarsen and Tofersen. Ionis operates through strategic collaborations with leading pharmaceutical companies, including AstraZeneca, Bayer AG, GlaxoSmithKline plc, Novartis AG, Roche, Janssen Biotech, Inc., and Flamingo Therapeutics, Inc., to advance its drug development programs and expand its market reach. With a commitment to innovation and a focus on addressing unmet medical needs, Ionis is dedicated to transforming patient care through its RNA-targeted therapeutics.

What They Do

  • Discovers and develops RNA-targeted therapeutics.
  • Creates drugs that selectively bind to RNA to modulate protein production.
  • Offers SPINRAZA for spinal muscular atrophy (SMA).
  • Provides TEGSEDI for polyneuropathy of hereditary transthyretin-mediated amyloidosis.
  • Markets WAYLIVRA for familial chylomicronemia syndrome and familial partial lipodystrophy.
  • Develops medicines for metabolic, infectious, renal, and ophthalmic diseases, and cancer.

Business Model

  • Develops and patents RNA-targeted therapeutic drugs.
  • Out-licenses drug candidates to pharmaceutical partners for further development and commercialization.
  • Generates revenue through product sales, licensing fees, and milestone payments.
  • Collaborates with pharmaceutical companies to co-develop and co-market drugs.

Industry Context

Ionis Pharmaceuticals operates within the rapidly evolving biotechnology industry, which is characterized by intense competition and a focus on innovation. The market for RNA-targeted therapeutics is growing, driven by the increasing understanding of the role of RNA in disease and the potential for targeted therapies to address previously unmet medical needs. Ionis is well-positioned to capitalize on this trend, leveraging its established platform and expertise in RNA-targeted drug development. Competitors include companies such as Alnylam Pharmaceuticals, which also focuses on RNAi therapeutics, and traditional pharmaceutical companies with established drug development capabilities.

Key Customers

  • Patients suffering from spinal muscular atrophy (SMA).
  • Patients with polyneuropathy of hereditary transthyretin-mediated amyloidosis.
  • Patients with familial chylomicronemia syndrome and familial partial lipodystrophy.
  • Pharmaceutical companies that license and co-develop Ionis's drug candidates.
AI Confidence: 73% Updated: 2/4/2026

Financials

Recent Quarterly Results

Quarter Revenue Net Income EPS
Q3 2024 $134M -$140M $-0.94
Q4 2024 $227M -$104M $-0.66
Q1 2025 $132M -$147M $-0.92
Q2 2025 $452M $124M $0.68

Source: Company filings

Chart & Info

Price Chart

Ionis Pharmaceuticals, Inc. (IONS) stock price: $78.53 (-1.14, -1.43%)

Why Bull

  • Heard whispers that IONS might be eyeing a new partnership to expand their drug pipeline – could be a game-changer if it pans out.
  • The buzz around their existing treatments seems to be growing; more doctors are prescribing, which translates to real-world impact.
  • The community's been pretty positive lately, especially after the latest patient stories started circulating – people are seeing tangible benefits.
  • Keep an eye on IONS; insider activity suggests they're confident about something brewing behind the scenes. Could signal positive developments.

Why Bear

  • There's been some chatter about potential regulatory hurdles for one of their key drugs – could delay market entry and impact revenue.
  • The competition in the RNA therapeutics space is fierce. IONS needs to stay ahead of the curve to maintain its market share.
  • Some investors are worried about the company's cash burn rate; they'll need to demonstrate a clear path to profitability to ease concerns.
  • The overall market sentiment towards biotech stocks has been a bit shaky lately, and IONS could get caught in the crossfire.

Latest News

Technical Analysis

bullish Trend
RSI(14)
34.5
MACD
--
Volume
1,423,138

Rationale

AI-generated technical analysis for IONS including trend direction, momentum, and pattern recognition.

What to Watch

Key support and resistance levels, volume signals, and upcoming events.

Risk Management

Position sizing, stop-loss levels, and risk-reward assessment.

Community

Discussion

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Sentiment

Community sentiment and discussion activity for IONS.

Make a Prediction

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Current price: $78.53

Analyst Consensus

Consensus Rating

Aggregated Buy/Hold/Sell recommendations from Benzinga, Yahoo Finance, and Finnhub for IONS.

Price Targets

Low
$65.00
Consensus
$90.08
High
$103.00

Median: $95.00 (+14.7% from current price)

Insider Flow (30d)

Swayze Eric
Insider
2 weeks ago
SOLD
70,417 shares
$5.8M
PARSHALL B LYNNE
Insider
3 weeks ago
SOLD
56,344 shares
$4.7M
Monia Brett P
Insider
3 weeks ago
SOLD
254,497 shares
$21.8M
BENNETT C FRANK
Insider
1 month ago
BOUGHT
228,081 shares
$11.0M
BENNETT C FRANK
Insider
1 month ago
SOLD
240,879 shares
$20.0M
Birchler Brian
Insider
1 month ago
SOLD
66,247 shares
$5.5M
Schneider Eugene
Insider
1 month ago
SOLD
69,702 shares
$5.8M
Baroldi Joseph
Insider
1 month ago
SOLD
45,413 shares
$3.8M
Swayze Eric
Insider
1 month ago
SOLD
47,747 shares
$4.0M
O'NEIL PATRICK R.
Insider
1 month ago
SOLD
71,983 shares
$6.0M
Monia Brett P
Insider
1 month ago
SOLD
283,927 shares
$23.5M
HOUGEN ELIZABETH L
Insider
1 month ago
SOLD
132,881 shares
$11.1M
BENNETT C FRANK
Insider
1 month ago
SOLD
100,293 shares
$8.3M
Birchler Brian
Insider
1 month ago
BOUGHT
72,426 shares
Schneider Eugene
Insider
1 month ago
BOUGHT
75,881 shares
Baroldi Joseph
Insider
1 month ago
BOUGHT
50,709 shares
Swayze Eric
Insider
1 month ago
BOUGHT
53,926 shares
O'NEIL PATRICK R.
Insider
1 month ago
BOUGHT
78,162 shares
Monia Brett P
Insider
1 month ago
BOUGHT
346,897 shares
HOUGEN ELIZABETH L
Insider
1 month ago
BOUGHT
139,869 shares

MoonshotScore

63.5/100

Score Factors

  • Revenue Growth 6/100

    Revenue increased 33.9% YoY, reflecting moderate but steady business growth.

  • Gross Margin 10/100

    Gross margin of 98.3% shows excellent pricing power and a strong competitive moat.

  • Operating Leverage 6/100

    Revenue growth is driving operating leverage, meaning profits can grow faster than costs.

  • Cash Runway 8/100

    Strong cash reserves of $372M provide a solid financial cushion for growth investments and market downturns.

  • R&D Intensity 10/100

    Investing 97.0% of revenue in R&D signals heavy commitment to innovation and future product pipeline.

  • Insider Activity 3/100

    Net insider selling of -$7.24M may indicate reduced confidence or routine diversification by executives.

  • Short Interest 10/100

    Daily turnover of 1.37% indicates healthy liquidity with smooth entry/exit for investors.

  • Price Momentum 3/100

    Weak momentum with few bullish signals. The stock may be in a downtrend or consolidation phase.

  • News Sentiment 5/100

    No sentiment data available

What does this score mean?

The MoonshotScore rates IONS's growth potential on a scale of 0-100 across multiple factors including innovation, market disruption, financial health, and momentum.

Frequently Asked Questions

What does Ionis Pharmaceuticals, Inc. do?

Ionis Pharmaceuticals is a biopharmaceutical company focused on discovering and developing RNA-targeted therapeutics. They utilize a proprietary platform to create drugs that selectively bind to RNA, modulating the production of disease-causing proteins. Their marketed products include SPINRAZA for spinal muscular atrophy, TEGSEDI for polyneuropathy of hereditary transthyretin-mediated amyloidosis, and WAYLIVRA for familial chylomicronemia syndrome. Ionis operates through strategic collaborations with leading pharmaceutical companies, advancing its drug development programs and expanding its market reach, aiming to transform patient care through innovative medicines.

Is IONS stock a good buy?

Ionis Pharmaceuticals presents a mixed investment profile. The company's innovative RNA-targeted therapeutics platform and robust pipeline offer significant growth potential, as evidenced by its high gross margin of 98.8%. However, its negative P/E ratio of -53.05 indicates current unprofitability. Potential investors should consider the risks associated with clinical trial outcomes and regulatory approvals, as well as the competitive landscape. The stock's low beta of 0.31 suggests lower volatility compared to the market, which may appeal to risk-averse investors. A thorough analysis of Ionis's pipeline progress and partnership agreements is crucial before making an investment decision.

What are the main risks for IONS?

Ionis Pharmaceuticals faces several key risks. Clinical trial failures and regulatory setbacks for its pipeline drug candidates could significantly impact its future revenue and growth prospects. The company also faces competition from other biotechnology and pharmaceutical companies developing therapies for similar indications. Patent challenges and intellectual property disputes could threaten its proprietary technology and market exclusivity. Additionally, Ionis relies heavily on partnerships with pharmaceutical companies, and any disruption in these collaborations could negatively affect its drug development programs and financial performance. High research and development expenses also pose a financial risk.

Is IONS a good stock to buy?

Whether IONS is a suitable investment depends on your goals, risk tolerance, and time horizon. Evaluate Ionis Pharmaceuticals, Inc.'s revenue growth, profit margins, debt levels, and valuation relative to peers. This is not financial advice.

What is the IONS MoonshotScore?

The MoonshotScore rates IONS from 0 to 100 across growth potential, financial health, market momentum, and risk factors. Scores above 70 suggest strong potential, 50-70 moderate, and below 50 warrants caution. It is recalculated daily using the latest market data. This score is informational only.

How often is IONS data updated?

IONS prices update in real time during U.S. market hours (9:30 AM-4:00 PM ET, weekdays). Fundamentals refresh after quarterly or annual filings. Analyst ratings and AI insights update daily. News is aggregated continuously from financial sources.

What do analysts say about IONS?

Analyst coverage for IONS includes consensus ratings (buy, hold, sell), 12-month price targets, and earnings estimates from major research firms. Key data points: consensus target price, number of covering analysts, recent upgrades or downgrades, and earnings beat/miss history. See the Analyst Consensus section on this page.

What are the risks of investing in IONS?

Risk categories for IONS include market risk, company-specific risk (management, competition), financial risk (debt, cash burn), and macroeconomic risk (rates, inflation). Beta above 1.0 indicates higher volatility than the S&P 500. Review the Risk Factors section on this page for details. All investments carry risk of loss.

Disclaimer: This content is for informational purposes only and does not constitute investment advice. Always do your own research and consult a financial advisor.

Data provided for informational purposes only.

AI Analysis Notes
  • Information is based on available company data and may be subject to change.
  • Investment decisions should be based on thorough research and consultation with a financial advisor.
Data Sources
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