IONIS PHARMACEUTICALS INC

Ionis Pharmaceuticals Inc.

Biotechnology Healthcare Carlsbad, CA, United States IONS (NMS)

Ionis Pharmaceuticals, Inc., a commercial-stage biotechnology company, provides RNA-targeted medicines in the United States. The company offers TRYNGOLZA reduces triglyceride levels in adults with familial chylomicronemia syndrome (FCS) and acute pancreatitis; WAINUA for the treatment of the polyneuropathy of hereditary transthyretin-medicated amyloidosis (ATTRv-PN) in adults; and SPINRAZA for pediatric and adult patients with spinal muscular atrophy (SMA). It also provides QALSODY for the treatment of Amyotrophic Lateral Sclerosis (ALS); TEGSEDI for the treatment of ATTRv-PN in adults; and WAYLIVRA for treatment for FCS and familial partial lipodystrophy. It also develops products under Phase 3 clinical trials, such as Olezarsen for patients with hypertriglyceridemia (SHTG) and cardiovascular disease (CVD); Donidalorsen for patients with hereditary angioedema; and Zilganerse, a potential treatment for people with genetically confirmed Alexander disease, as well as ION582 that has completed Phase 2 clinical trial for the potential treatment of AS, a rare genetic neurological disease. In addition, the company develops Eplontersen to degrade mutant and wild-type TTR mRNA through binding to the TTR mRNA; Pelacarsen to inhibit the production of apolipoprotein(a) in the liver to offer a direct approach for reducing lipoprotein(a); Bepirovirsen to inhibit the production of viral proteins associated with hepatitis B virus; Sefaxersen to reduce the production of complement factor B and lower activation of the alternative complement pathway; and Ulefnersen to reduce the production of the fused in sarcoma, as well as other mid-stage pipeline investigational medicines. It has a strategic collaboration with Biogen for the treatment of neurological disorders; and collaboration and license agreement with GSK, AstraZeneca, Novartis, and Roche, as well as with Metagenomi. The company was incorporated in 1989 and is headquartered in Carlsbad, California.

Stock Performance (90 Days)

Data through Dec 24, 2025
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Layoff History

No layoff events recorded for this company.

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Frequently Asked Questions

Has IONIS PHARMACEUTICALS INC had layoffs?
No layoff events have been recorded for IONIS PHARMACEUTICALS INC in our database. This could mean the company has not conducted significant layoffs, or any layoffs have not been publicly reported.
How many employees does IONIS PHARMACEUTICALS INC have?
IONIS PHARMACEUTICALS INC has approximately 1,069 employees.
What industry is IONIS PHARMACEUTICALS INC in?
IONIS PHARMACEUTICALS INC operates in the Biotechnology industry, within the Healthcare sector.
Is IONIS PHARMACEUTICALS INC a publicly traded company?
Yes, IONIS PHARMACEUTICALS INC is publicly traded under the ticker symbol IONS on the NMS. The company has a market capitalization of approximately $13.06 billion.
Where is IONIS PHARMACEUTICALS INC headquartered?
IONIS PHARMACEUTICALS INC is headquartered in Carlsbad, CA, United States.

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