Ionis Pharmaceuticals, Inc.(IONS)
NASDAQ
$45.40
1.02 (2.30%)

Ionis Pharmaceuticals, Inc.(IONS)Company Profile & Business
NASDAQ

Company Profile

Business overview, scale, and footprint

Company NameIonis Pharmaceuticals, Inc.
Ticker SymbolIONS
ExchangeNMS
SectorHealthcare
IndustryBiotechnology
Employees1,480
CEODr. Brett P. Monia Ph.D.
Founded1989
HeadquartersCarlsbad, CA, United States
CountryUnited States
Websiteionis.com
Next Earnings DateNov 4, 2026

Business Overview

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.

Insider Transactions

Open-market activity and option exercises

Insider Activity Summary

Insider trading activity for Ionis Pharmaceuticals, Inc. (IONS) between Sep 3, 2025 and Oct 16, 2026 consists of 155 total transactions. Among these, company executives and board members conducted 137 buys (totaling 3,761,364 shares) and 18 sells (totaling 243,726 shares). This activity resulted in a net change of 3,517,638 shares, reflecting net buying interest with an estimated net acquisitions value of $68.50M.

155 insider transactions found. Showing 10 of 155 transactions.

Show:entries
Insider NameRelation to CompanyShares ChangedPriceTransaction Date
Swayze EricEVP Research-53$43.54Oct 16, 2026
Devers Shannon L.EVP, Chief Human Resources Ofc-1,357$43.54Oct 16, 2026
HAYDEN MICHAEL REUBENDirector20,000$1.06Jul 31, 2026
Hayden Michael RDirector5,000$51.60Jul 31, 2026
Hayden Michael RDirector15,000$53.38Jul 30, 2026
BERTHELSEN SPENCER RDirector5,220N/AJul 15, 2026
HERMAN JOAN EDirector5,220N/AJul 15, 2026
DIAZ ALLENE M.Director10,111$0.48Jul 7, 2026
KORDASIEWICZ HOLLY BOfficer362$30517.00Jul 7, 2026
BENNETT C FRANKOfficer20,536$1.74Jul 7, 2026
Page 1 of 16 (155 total transactions)