Our Science and Technology
Rooted in a Deep Understanding of Genetics
The genetic basis of human disease continues to inspire our science and technology as we expand to new therapeutic approaches, while our industry-leading chemistry helps us target the right medicine to the right disease – providing a rich source for future breakthroughs and transformative impact.
WHO WE ARE
Ionis unites groundbreaking science and technology with relentless passion to discover and deliver medicines that enable better futures for people living with serious diseases.
Our commitment to changing lives is a calling that pushes us to deliver the next solution for patients and those who care for them.

We have set our sights on providing new solutions across the spectrum of diseases, from common intractable neurologic conditions to cardiometabolic disorders and select areas of high patient needs.
We push beyond the impossible to unleash the potential of patients – and those who care for them – enabling them to make their own impact on the world.

We believe operating responsibly and sustainably creates long-term value and a positive impact for our company, stakeholders, patients, communities and the broader world.
JOIN OUR TEAM
Seizing the Moment to Unlock the Potential of RNA- and DNA-Targeted Medicines
If you’re driven to deliver on the promise of groundbreaking medicines that empower patients and caregivers to make their own impact on the world, come join us.

Ionis reports second quarter 2025 financial results and highlights progress on key programs
- TRYNGOLZA TM delivers $19 million in net product sales in the second quarter 2025 - - Donidalorsen approval in hereditary angioedema (HAE) anticipated next month; Ionis’ second independent launch - - Phase 3 data from the pivotal CORE and CORE2 studies in severe hypertriglyceridemia (sHTG)
TRYNGOLZA® (olezarsen) recommended for approval in the EU by CHMP for familial chylomicronemia syndrome (FCS)
– Recommendation based on Phase 3 Balance results, which showed a significant reduction of triglycerides and substantial reduction of acute pancreatitis events with TRYNGOLZA – – European Commission decision expected by Q4 2025 – CARLSBAD, Calif. --(BUSINESS WIRE)--Jul.
Phase 3 OASISplus data demonstrating benefit of donidalorsen for HAE patients who switched from other prophylactics published in JACI In Practice
– Patients switched to donidalorsen without increased breakthrough attacks and experienced further reductions in mean attack rate from baseline – – 84% of patients surveyed preferred donidalorsen over their prior treatment – – Donidalorsen is currently under review with the U.S.
- TRYNGOLZA TM delivers $19 million in net product sales in the second quarter 2025 - - Donidalorsen approval in hereditary angioedema (HAE) anticipated next month; Ionis’ second independent launch - - Phase 3 data from the pivotal CORE and CORE2 studies in severe hypertriglyceridemia (sHTG)
<p>– Recommendation based on Phase 3 Balance results, which showed a significant reduction of triglycerides and substantial reduction of acute pancreatitis events with TRYNGOLZA – – European Commission decision expected by Q4 2025 – CARLSBAD, Calif. --(BUSINESS WIRE)--Jul.</p>
<p>– Patients switched to donidalorsen without increased breakthrough attacks and experienced further reductions in mean attack rate from baseline – – 84% of patients surveyed preferred donidalorsen over their prior treatment – – Donidalorsen is currently under review with the U.S.</p>
Click here to read an important notice about a cybersecurity incident relating to services provided to WEX Health (an Ionis employee benefits plan administrator).