Key Takeaways Ionis posted a smaller-than-expected Q3 loss and a 17% year-over-year revenue increase.Commercial revenue jumped 53% YoY on strong Tryngolza sales and higher Wainua royalties.The company raised its 2025 revenue outlook to $875-$900 million, citing solid drug uptake.Ionis Pharmaceuticals (IONS) reported third-quarter 2025 adjusted loss per share of 61 cents, much narrower than the Zacks Consensus Estimate of a loss of $1.15. In the year-ago period, the company reported an adjusted loss of 72 ce ...

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 Form 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Quarterly Period Ended September 30, 2025 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF SECURITIES EXCHANGE ACT OF 1934 For the transition period from _____ to _____ Commission file number 000-19125 Ionis Pharmaceuticals, Inc. (Exact name of Registrant as specified in its charter) (State or other jurisdiction ...

Ionis Pharmaceuticals (NasdaqGS:IONS) Q3 2025 Earnings Call October 29, 2025 11:30 AM ET Company ParticipantsKyle Jenne - Chief Global Product Strategy OfficerRichard Geary - Chief Development OfficerBeth Hougen - CFOWade Walke - SVPGary Nachman - Managing Director of BioPharma/Biotech Equity ResearchMike Ulz - Executive Director of Biotechnology Equity ResearchGena Wang - Managing Director and Biotech Equity ResearchBrett Monia - CEOConference Call ParticipantsMyles Minter - Biotech Equity Research Analyst ...

Ionis Pharmaceuticals (NasdaqGS:IONS) Q3 2025 Earnings Call October 29, 2025 11:30 AM ET Company ParticipantsKyle Jenne - Chief Global Product Strategy OfficerRichard Geary - Chief Development OfficerBeth Hougen - CFOWade Walke - SVPGary Nachman - Managing Director of BioPharma/Biotech Equity ResearchMike Ulz - Executive Director of Biotechnology Equity ResearchGena Wang - Managing Director and Biotech Equity ResearchBrett Monia - CEOConference Call ParticipantsMyles Minter - Biotech Equity Research Analyst ...

Financial Data and Key Metrics Changes - In Q3 2025, the company generated $157 million in revenue, a 17% increase year over year, and $740 million for the first nine months, reflecting a 55% increase compared to the prior year [23][24] - Tringolsa reported $32 million in net product sales, representing a nearly 70% increase quarter over quarter [13][23] - Royalty revenues increased by approximately 13% to $76 million in Q3, driven by contributions from Spinraza and Waylivra [24] - The company raised its 2025 financial guidance, now expecting total revenue between $875 million and $900 million, an increase of $50 million from prior guidance [25][26] Business Line Data and Key Metrics Changes - Tringolsa's launch is gaining momentum, with a significant increase in prescribers and patient identification efforts [15][16] - Donzera, approved for hereditary angioedema, is seeing strong early adoption, with patients switching from prior therapies and treatment-naive patients starting on Donzera [18][19] - Olzarsen showed a significant reduction in triglycerides and acute pancreatitis events, positioning it for a strong launch next year [9][10] - Zilganersen demonstrated a disease-modifying effect in Alexander disease, with plans for an independent launch next year [10][11] Market Data and Key Metrics Changes - The company anticipates targeting approximately 20,000 healthcare providers (HCPs) for Olzarsen, covering around 360,000 patients with severe hypertriglyceridemia (SHTG) [32] - The U.S. prophylactic HAE market is well established, with many patients dissatisfied with current therapies, indicating a significant opportunity for Donzera [19][66] Company Strategy and Development Direction - The company is focused on executing its commercial strategy for Tringolsa and Donzera while preparing for upcoming launches of Olzarsen and Zilganersen [22][28] - The pipeline includes multiple late-stage programs, with expectations for four key launches from the partnered pipeline by the end of 2027 [6][12] - The company aims to achieve cash flow breakeven by 2028, driving long-term value creation [26][28] Management's Comments on Operating Environment and Future Outlook - Management expressed confidence in the ongoing momentum across the business, with strong performance from independent launches and a robust pipeline [4][28] - The company is optimistic about the potential of Olzarsen and Zilganersen to address significant unmet medical needs [10][11] - Management highlighted the importance of patient identification and education efforts to maximize the impact of new therapies [15][16] Other Important Information - The company plans to submit a new drug application for Zilganersen in Q1 2026 and is initiating an expanded access program in the U.S. [11] - The company has a strong balance sheet, expecting to end the year with over $2.1 billion in cash [26] Q&A Session Summary Question: Thoughts on the launch curve for Olzarsen in SHTG - Management indicated strong interest from HCPs and plans to target approximately 20,000 HCPs covering 360,000 patients, expecting strong uptake based on phase 3 data [32] Question: Concerns regarding acute pancreatitis events in Olzarsen studies - Management reassured that the data is groundbreaking and will be presented at AHA, with no significant concerns regarding acute pancreatitis events [36] Question: Peak revenue potential for Donzera and Olzarsen - Management expects peak sales for Donzera to exceed $500 million and for Olzarsen to exceed $1 billion [38] Question: Pricing strategy for Olzarsen - Management is still working on pricing and expects to provide more clarity next year [40] Question: Early prescriptions for Donzera - Management reported strong early adoption, with switches from existing therapies and newly diagnosed patients [66]

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Q3:2025 Business Update and Financial Results October 29, 2025 Nasdaq: IONS 1 On Today's Earnings Call Eugene Schneider, M.D. Chief Clinical Development Officer Eric Swayze, Ph.D. Executive Vice President, Research 2 Richard Geary, Ph.D. Chief Development Officer Kyle Jenne Chief Global Product Strategy Officer Beth Hougen Chief Financial Officer Forward-Looking Statements This presentation includes forward-looking statements regarding our business, financial guidance and the therapeutic and commercial pote ...

Ionis Pharmaceuticals (IONS) came out with a quarterly loss of $0.61 per share versus the Zacks Consensus Estimate of a loss of $1.15. This compares to a loss of $0.95 per share a year ago. These figures are adjusted for non-recurring items.This quarterly report represents an earnings surprise of +46.96%. A quarter ago, it was expected that this drug discovery and development company would post earnings of $0.27 per share when it actually produced earnings of $0.86, delivering a surprise of +218.52%.Over th ...

- TRYNGOLZA® generated $32 million in net product sales in the third quarter 2025 - - DAWNZERA™ (donidalorsen) launch of to encouraging start - - Olezarsen significantly reduced triglycerides and acute pancreatitis events in severe hypertriglyceridemia (sHTG) in landmark Phase 3 studies; sNDA submission on track by year-end – - Positive pivotal zilganersen results in Alexander disease position Ionis for first independent neurology launch in 2026 - Exhibit 99.1 Ionis reports third quarter 2025 financial resu ...

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