Financials
Cash Data
- Monthly Burn
- Burn Trend
- Dilution Risk
- SEC Filing
Key Stats
Upcoming Catalysts
FDA decisions, readouts and PDUFA dates · scored by probability of approval
IONS Catalyst Timeline
Dated clinical, regulatory and corporate events for Ionis Pharmaceuticals, Inc.
Catalyst Timeline
Dated clinical, regulatory & corporate events for Ionis Pharmaceuticals, Inc.
Upcoming catalysts 2
Event history 50
Past FDA Catalysts and PDUFA Decisions
How IONS actually traded into and out of each decision
| Date | Drug | Catalyst | Stage | Reaction | Event Move % | Best Trade % |
|---|---|---|---|---|---|---|
| 2026-10-21 | bepirovirsen | PDUFA Date Approved | PDUFA |
Drug Pipeline Intelligence
| Product | Revenue | Prior period | Change |
|---|---|---|---|
| TRYNGOLZA | |||
| DAWNZERA |
| Drug | Indication | Phase | PTRS | rNPV | Status | Enroll | Velocity | Design | Est. Completion | ML Signal | Last Change |
|---|---|---|---|---|---|---|---|---|---|---|---|
| ION775 Small moleculeNCT07604974 | Hypertriglyceridemia | Phase 2 | RECRUITING | 72 | Mar 1, 2028 | ||||||
| ION717 Small moleculeNCT06153966 | Prion Disease | Phase 1 | ACTIVE NOT_RECRUITING | 85 | Aug 1, 2030 | ||||||
| ION337 Small moleculeNCT07531745 | Dravet Syndrome | Phase 1 | RECRUITING | 32 | Dec 1, 2030 | ||||||
| obudanersen RNA therapyNCT06914609 | Angelman Syndrome | Phase 3 | ACTIVE NOT_RECRUITING | 186 | Apr 1, 2030 | ||||||
| ION582 Small moleculeNCT05127226 | Angelman Syndrome | Phase 1 | ACTIVE NOT_RECRUITING | 71 | Mar 1, 2029 | ||||||
| ION356 Small moleculeNCT06150716 | Pelizaeus-Merzbacher Disease | Phase 1 | RECRUITING | 24 | Jun 1, 2028 | ||||||
| ION440 Small moleculeNCT06430385 | Methyl CpG Binding Protein 2 (MECP2) Duplication Syndrome | Phase 1 | RECRUITING | 48 | Apr 1, 2030 | ||||||
| ION464 Small moleculeNCT04165486 | Multiple System Atrophy | Phase 1 | RECRUITING | 40 | Sep 1, 2027 | ||||||
| zilganersen RNA therapyMarketedNCT04849741 | Alexander Disease | Phase 3 | ACTIVE NOT_RECRUITING | 54 | Jul 1, 2034 | ||||||
| Olezarsen RNA therapyMarketedNCT05681351 | Severe Hypertriglyceridemia | Phase 3 | ACTIVE NOT_RECRUITING | 1,948 | Mar 1, 2027 | ||||||
| Donidalorsen RNA therapyMarketedNCT05392114 | Hereditary Angioedema | Phase 3 | ACTIVE NOT_RECRUITING | 308 | Mar 1, 2027 | ||||||
| Olezarsen RNA therapyMarketedNCT05130450 | Familial Chylomicronemia Syndrome | Phase 3 | ACTIVE NOT_RECRUITING | 162 | Feb 1, 2028 | ||||||
| Eplontersen RNA therapyMarketedNCT05071300 | Hereditary Transthyretin-Mediated Amyloid Polyneuropathy | Phase 3 | ACTIVE NOT_RECRUITING | 151 | Aug 1, 2029 | ||||||
| ION363 Small moleculeNCT04768972 | Amyotrophic Lateral Sclerosis | Phase 3 | ACTIVE NOT_RECRUITING | 89 | Mar 1, 2028 | ||||||
| IONIS-FB-LRx Small moleculeCompletedNCT04014335 | Primary IgA Nephropathy | Phase 2 | COMPLETED | 23 | Apr 11, 2024 | ||||||
| IONIS-FB-LRx Small moleculeCompletedNCT03815825 | Macular Degeneration | Phase 2 | COMPLETED | 332 | Jun 12, 2024 | ||||||
| ISIS 681257 Small moleculeCompletedNCT03426033 | Elevated Lipoprotein(a) | Phase 2 | COMPLETED | 322 | Feb 25, 2018 | ||||||
| Pelacarsen RNA therapyCompletedNCT05337878 | Undisclosed | Phase 1 | COMPLETED | 29 | Dec 18, 2019 | ||||||
| ISIS 681257 Small moleculeCompletedNCT03506854 | Renal Impairment | Phase 1 | COMPLETED | 16 | Oct 11, 2018 | ||||||
| IONIS-APO-LRx Small moleculeCompletedNCT02414594 | Elevated Lipoprotein(a) | Phase 1 | COMPLETED | 60 | Feb 1, 2016 | ||||||
| ION224 Small moleculeCompletedNCT04932512 | Steatohepatitis, Nonalcoholic | Phase 2 | COMPLETED | 160 | Feb 28, 2024 | ||||||
| Ionis AGT-LRx Small moleculeCompletedNCT04714320 | Hypertension | Phase 2 | COMPLETED | 160 | Oct 3, 2022 | ||||||
| Ionis AGT-LRx Small moleculeCompletedNCT04836182 | Chronic Heart Failure With Reduced Ejection Fraction | Phase 2 | COMPLETED | 72 | Jan 11, 2023 | ||||||
| ION904 Small moleculeCompletedNCT05314439 | Hypertension | Phase 2 | COMPLETED | 48 | Feb 15, 2023 | ||||||
| sapablursen RNA therapyCompletedNCT05143957 | Phlebotomy Dependent Polycythemia Vera | Phase 2 | COMPLETED | 50 | Jun 2, 2026 |
Clinical Trial Results
Readouts, endpoints and source filings for every IONS program
| Drug Name | Indication | Phase | Date | Trial Results Summary | Title | Source |
|---|---|---|---|---|---|---|
| sefaxersen | IgA nephropathy | Phase 3 | 2026-10-23 | 43.1% reduction in proteinuria (95% confidence interval [CI]: 32.5 - 52.0, P<0.0001)Read More | Ionis partner Roche announces new Phase 3 data showing sefaxersen significantly reduced proteinuria in people with IgA nephropathy (IgAN)Read More |
Inside Trades
| Insider | Side | Shares | Price | Value | Date |
|---|---|---|---|---|---|
| Swayze EricOfficer (EVP Research) | Sell | -53 390 held | $43.54 | 10/16/2026 |
Hedge Fund 13F Activity
Hedge Funds invested in IONS
| Fund | % of Portfolio | Current MV | Shares Owned | Activity |
|---|---|---|---|---|
| Deep Track Capital, LP | 2.5 % (4.2 %) | 174.44 M | 2.20 M | 12.82% ( 250.00 K) |
IONS Institutional Ownership Trends
IONS Short Interest
Shares sold short, counted twice a month.
Options Data
Option Volume
Option Chain Statistics
| Expiry | Call Vol | Put Vol | Vol P/C | Call OI | Put OI | OI P/C | IV Call | IV Call OI-Wtd | IV Call Vol-Wtd | IV Put | IV Put OI-Wtd | IV Put Vol-Wtd |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 2026-11-20 | ||||||||||||
Real-Time Option Chain
| Calls | Strike | Puts | ||||
|---|---|---|---|---|---|---|
| Last | Vol | OI | Last | Vol | OI | |
| No data available | ||||||
Calls vs Puts by Expiry
Competitive positioning
How IONS ranks across every disease it competes in
IONS News
Ionis partner Roche announces new Phase 3 data showing sefaxersen significantly reduced proteinuria in people with IgA nephropathy (IgAN)
Roche announced Phase 3 data showing that sefaxersen significantly reduced proteinuria by 43.1% in patients with IgA nephropathy compared to placebo. This investigational treatment aims to slow disease progression and is designed for monthly self-administration. The results indicate a strong potential for sefaxersen to improve outcomes for patients at risk of kidney failure.
Read more →Ionis ranked #1 on Science’s Top Employers list
Ionis Pharmaceuticals has been named the top employer by Science in its annual survey, rising from second place last year. The recognition highlights Ionis's commitment to innovation and a strong corporate culture. CEO Brett P. Monia emphasized the company's patient-centric purpose and the importance of fostering a supportive work environment.
Read more →Ionis partner GSK announces Hibsago (bepirovirsen) approved in the U.S. for the treatment of chronic hepatitis B (CHB)
GSK announced FDA approval for Hibsago (bepirovirsen) to treat chronic hepatitis B. This first-in-class RNA-targeted medicine demonstrated a 19% functional cure rate in Phase 3 trials, significantly outperforming existing therapies. The treatment offers the possibility of at-home administration after the initial dose, addressing a critical need for effective hepatitis B management.
Read more →TRYNGOLZA® (olezarsen) recommended for approval in the EU by CHMP for severe hypertriglyceridemia (sHTG)
Ionis Pharmaceuticals announced that the CHMP has recommended approval for TRYNGOLZA (olezarsen) for treating severe hypertriglyceridemia (sHTG) in the EU. This recommendation is based on positive results from Phase 3 studies showing significant reductions in triglyceride levels. If approved by the European Commission, it would be the first RNA-targeted therapy for sHTG in the EU.
Read more →Ionis announces positive interim data from partner Roche’s Phase 3 IMAgINATION study in IgA nephropathy (IgAN)
Ionis Pharmaceuticals and Roche reported positive interim results from the Phase 3 IMAgINATION study of sefaxersen in adults with IgA nephropathy. The investigational treatment achieved significant improvements in proteinuria reduction compared to placebo at 37 weeks. This marks a successful milestone for the ongoing clinical trial.
Read more →Ionis announces positive topline results from Phase 3 FUSION study of ulefnersen marking significant milestone in advancing first potential disease modifying treatment for FUS-ALS
Ionis Pharmaceuticals announced positive topline results from the Phase 3 FUSION trial of ulefnersen, an investigational treatment for FUS-ALS. The study met its primary endpoint, showing significant improvements in functional impairment and survival. Ulefnersen is the first treatment targeting the genetic cause of FUS-ALS, with plans for expedited regulatory submissions to the FDA.
Read more →Ionis partner Novartis announces Lp(a)HORIZON Phase 3 topline results for pelacarsen in patients with elevated Lp(a) and established cardiovascular disease (CVD)
Ionis Pharmaceuticals' partner Novartis reported that the pelacarsen Phase 3 Lp(a)HORIZON study failed to achieve its primary goal of reducing cardiovascular event risks. The study aimed to evaluate the drug's effectiveness in patients with elevated Lp(a) and established cardiovascular disease but did not show significant benefits compared to placebo. This outcome is consistent with previous research findings.
Read more →ZANVASTRO™ (zilganersen) approved by the FDA as the first and only disease modifying treatment for Alexander disease (AxD) in pediatric and adult patients
Ionis Pharmaceuticals has received FDA approval for ZANVASTRO (zilganersen), the first disease-modifying treatment for Alexander disease (AxD) in both pediatric and adult patients. This approval represents a significant advancement in the management of this ultra-rare and progressive neurological disorder, which has previously lacked effective treatment options.
Read more →Ionis to present at upcoming investor conferences
Ionis Pharmaceuticals has announced its participation in two upcoming investor conferences. The management will engage in fireside chats at the 21st Annual Wells Fargo Healthcare Conference and the Morgan Stanley 24th Annual Global Healthcare Conference. Live webcasts of these presentations will be available on the company's website.
Read more →Ionis partner GSK announces Hibsago (bepirovirsen) approved in Japan as first and only functional cure for chronic hepatitis B
GSK has received approval from Japan's MHLW for Hibsago (bepirovirsen) as the first functional cure for chronic hepatitis B. This treatment is aimed at adults who have undergone prior nucleos(t)ide analogue therapy. The approval is based on phase III trial results showing a 19% functional cure rate, significantly higher than the current standard of care. GSK plans to pursue regulatory submissions in other regions, including the US.
Read more →Ionis to present new data strengthening leadership in the management of severe hypertriglyceridemia (sHTG) at the European Society of Cardiology Congress 2026
Ionis Pharmaceuticals announced that it will present new data on the management of severe hypertriglyceridemia (sHTG) at the European Society of Cardiology Congress 2026. The presentation will include one-year data from the long-term extension study of TRYNGOLZA® (olezarsen), which is the first approved treatment for sHTG in the U.S. The congress is scheduled for August 28-31 in Munich.
Read more →Ionis announces Dr. Frank Bennett, chief scientific officer, to retire
Ionis Pharmaceuticals announced the retirement of Dr. Frank Bennett, its chief scientific officer, effective February 2027. As a founding scientist, Bennett has played a crucial role in developing RNA-targeted therapies. His contributions have been pivotal in advancing antisense medicine, particularly in neurology, according to CEO Brett P. Monia.
Read more →Ionis reports second quarter 2026 financial results and highlights progress on key programs
Ionis Pharmaceuticals reported its financial results for Q2 2026, highlighting the approval of TRYNGOLZA, the first treatment aimed at reducing triglycerides and preventing acute pancreatitis in patients with severe hypertriglyceridemia. The company expressed optimism about the early momentum of the product's launch and its potential for revenue growth.
Read more →Ionis to hold second quarter 2026 financial results webcast
Ionis Pharmaceuticals, Inc. will host a live webcast on July 29, 2026, at 8:30 a.m. ET to discuss its second quarter financial results. The event will also cover progress on key programs. A replay will be available for a limited time after the live presentation.
Read more →Ionis Partner Biogen Presents Phase 2 CELIA Data at AAIC Demonstrating Meaningful Clinical Outcomes and Robust Tau Reduction with Diranersen in Early Alzheimer’s Disease
Ionis Pharmaceuticals and Biogen presented new data from the Phase 2 CELIA study at the AAIC 2026. The study evaluated diranersen, an investigational therapy targeting tau in early Alzheimer's disease. The results indicate significant clinical benefits and a notable reduction in tau levels, building on earlier findings.
Read more →Ionis doses first participant in Phase 1-2 ASCEND study of ION337 in Dravet syndrome
Ionis Pharmaceuticals has initiated the Phase 1-2 ASCEND study by dosing the first participant with ION337. This investigational RNA-targeted medicine aims to treat Dravet syndrome, a severe neurological disorder that begins in infancy. The study represents a significant step forward in addressing the needs of patients affected by this condition.
Read more →Update on CARDIO-TTRansform Phase 3 trial of eplontersen in adults with transthyretin-mediated amyloid cardiomyopathy
Ionis Pharmaceuticals and AstraZeneca reported that the CARDIO-TTRansform Phase 3 trial for eplontersen in patients with transthyretin-mediated amyloid cardiomyopathy failed to meet its primary efficacy endpoint. The trial assessed cardiovascular mortality and recurrent clinical events but showed no significant difference compared to placebo. This outcome raises concerns about the drug's future prospects.
Read more →Ionis completes enrollment in pivotal cohort of the Phase 3 REVEAL study evaluating obudanersen in Angelman syndrome
Ionis Pharmaceuticals has completed enrollment in the pivotal cohort of the Phase 3 REVEAL study. This study is evaluating the efficacy of obudanersen in patients with Angelman syndrome. The completion of enrollment marks a significant step in the clinical trial process for this rare genetic disorder.
Read more →Ionis announces license agreement with Recordati for zilganersen in Alexander disease (AxD) in all countries outside the U.S.
Ionis Pharmaceuticals has entered into a licensing agreement with Recordati for the development of zilganersen, a treatment for Alexander disease (AxD). This agreement grants Recordati rights to market the drug in all countries outside the United States. This collaboration aims to advance the treatment options available for patients suffering from AxD.
Read more →TRYNGOLZA® (olezarsen) approved by the FDA as the first and only treatment to reduce triglycerides and the risk of acute pancreatitis in patients with severe hypertriglyceridemia (sHTG)
The FDA has approved TRYNGOLZA® (olezarsen) as the first treatment specifically designed to reduce triglycerides and the risk of acute pancreatitis in patients suffering from severe hypertriglyceridemia (sHTG). This approval represents a significant advancement in managing this serious condition, offering hope for improved patient outcomes.
Read more →