Ionis Pharmaceuticals, Inc. (IONS)
NASDAQ: IONS · Real-Time Price · USD
71.78
-0.45 (-0.62%)
Apr 28, 2026, 4:00 PM EDT - Market closed

Company Description

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; DAWNZERA for prophylaxis to prevent attacks of hereditary angioedema in adults; 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); and Zilganerse, a potential treatment for people with genetically confirmed Alexander disease, as well as ION582 which is in Phase 3 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.

Ionis Pharmaceuticals, Inc.
Ionis Pharmaceuticals logo
Country United States
Founded 1989
IPO Date May 17, 1991
Industry Biotechnology
Sector Healthcare
Employees 1,402
CEO Brett Monia

Contact Details

Address:
2855 Gazelle Court
Carlsbad, California 92010
United States
Phone 760 931 9200
Website ionis.com

Stock Details

Ticker Symbol IONS
Exchange NASDAQ
Stock Type Common Stock
Fiscal Year January - December
Reporting Currency USD
CIK Code 0000874015
CUSIP Number 462222100
ISIN Number US4622221004
Employer ID 33-0336973
SIC Code 2834

Key Executives

Name Position
Dr. Brett P. Monia Ph.D. Founder, Chief Executive Officer and Director
Elizabeth L. Hougen M.A., M.B.A., M.S. Executive Vice President of Finance and Chief Financial Officer
Patrick R. O'Neil Esq. Executive Vice President, Chief Legal Officer, General Counsel and Corporate Secretary
Charles G. Asare M.D., M.P.H. Vice President and Head of Drug Safety
Rachel M. Carnes Senior Vice President of Global Product Strategy
Hala B. Mirza Senior Vice President of Corporate Affairs and Patient Advocacy
Dr. Sujit K. Basu Ph.D. Vice President and Head of Pharmaceutical Development
Roger Lane M.D., M.P.H. Senior Vice President of Clinical Development
Cliff Ford J.D. Senior Vice President of Intellectual Property
Jonathan J. Birchall M.B.A. Senior Vice President and Chief Commercial Officer

Latest SEC Filings

Date Type Title
Apr 28, 2026 144 Filing
Apr 23, 2026 ARS Filing
Apr 23, 2026 DEFA14A Additional definitive proxy soliciting materials and Rule 14(a)(12) material
Apr 23, 2026 DEF 14A Other definitive proxy statements
Apr 21, 2026 8-K Current Report
Apr 16, 2026 144 Filing
Apr 16, 2026 144 Filing
Apr 16, 2026 144 Filing
Mar 31, 2026 144 Filing
Mar 27, 2026 SCHEDULE 13G/A Filing