NASDAQ
56.56USD
+2.07 (+3.80%)
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Market cap
9.4B
P/E
—
EPS
—
Beta
0.36
52W range
40.37-86.74
Day range
54.40–56.60
Open
54.73
Prev close
54.49
Volume
1.7M
Avg volume
2.7M
Dividend
0.00
IPO
1991-05-17
https://www.businesswire.com/news/home/20260808352745/en/IONS-Investors-Have-Opportunity-to-Join-Ionis-Pharmaceuticals-Inc.-Fraud-Investigation-with-SBS-Law/ · 8/8/2026-0.80
https://www.globenewswire.com/news-release/2026/07/15/3328071/32716/en/PNR-Investor-Alert-HBSS-Launches-Investigation-into-Pentair-plc-PNR-Following-Surprise-CFO-Departure-and-Drastic-Guidance-Cut.html · 7/15/2026-1.00
https://www.globenewswire.com/news-release/2026/07/14/3327321/1087/en/Pomerantz-Law-Firm-Announces-the-Filing-of-a-Class-Action-Against-Insulet-Corporation-and-Certain-Officers-PODD.html · 7/14/2026-0.30
https://www.prnewswire.com/news-releases/ionis-pharmaceuticals-investigation-notice-levi--korsinsky-notifies-investors-of-a-pending-investigation-into-ionis-pharmaceuticals-ions-302822333.html · 7/10/2026
https://invezz.com/news/2026/07/09/astrazeneca-shares-plunge-as-wainua-fails-late-stage-heart-disease-trial/ · 7/9/2026-0.20
https://www.zacks.com/stock/news/2943769/ions-out-licenses-ex-u-s-rights-for-rare-neurology-drug-to-recordati?cid=CS-STOCKNEWSAPI-FT-analyst_blog|company_news_medical_sector-2943769 · 6/26/2026+0.80
https://seekingalpha.com/article/4917829-ionis-pharmaceuticals-inc-ions-discusses-fda-approval-of-tryngolza-for-severe · 6/25/2026+1.00
https://seekingalpha.com/article/4909793-ionis-pharmaceuticals-bull-run-can-continue-as-major-catalysts-approach · 5/28/2026+0.90
https://seekingalpha.com/article/4906493-ionis-pharmaceuticals-inc-ions-presents-at-rbc-capital-markets-global-healthcare-conference · 5/19/2026+0.00
https://www.defenseworld.net/2026/04/19/b-lynne-parshall-sells-5000-shares-of-ionis-pharmaceuticals-nasdaqions-stock.html · 4/19/2026-0.20
https://www.defenseworld.net/2026/04/19/insider-selling-clearwater-analytics-nysecwan-cfo-sells-450109-00-in-stock.html · 4/19/2026-0.10
https://www.globenewswire.com/news-release/2026/04/06/3268372/0/en/Praxis-Precision-Medicines-Announces-Positive-Results-from-the-EMBRAVE-Part-A-Trial-of-Elsunersen-in-Patients-with-SCN2A-Early-Onset-Developmental-and-Epileptic-Encephalopathy.html · 4/6/2026+0.40
Founded in 1989 and headquartered in Carlsbad, California, Ionis Pharmaceuticals, Inc. is a biopharmaceutical company specializing in the discovery and development of RNA-targeted therapies within the United States. Its commercial portfolio includes three key medications: SPINRAZA, prescribed for spinal muscular atrophy (SMA) in both children and adults; TEGSEDI, an injectable treatment targeting polyneuropathy associated with hereditary transthyretin-mediated amyloidosis in adult patients; and WAYLIVRA, which addresses familial chylomicronemia syndrome and familial partial lipodystrophy. Ionis also maintains a robust pipeline, with several drug candidates currently in Phase 3 clinical trials. These include Eplontersen, a monthly self-administered subcutaneous injection designed for all forms of TTR amyloidosis; Olezarsen, intended for individuals with severe hypertriglyceridemia (SHTG); Donidalorsen, for patients suffering from hereditary angioedema; ION363, aimed at amyotrophic lateral sclerosis (ALS); Pelacarsen, developed for those with established cardiovascular disease and elevated lipoprotein(a); and Tofersen, which works by inhibiting the production of superoxide dismutase 1. Beyond these late-stage assets, the company is actively researching treatments for metabolic, infectious, renal, and ophthalmic diseases, as well as various types of cancer. The firm engages in significant collaborations, notably a strategic partnership with Biogen Inc. Additionally, it holds licensing and collaboration agreements with AstraZeneca, Bayer AG, GlaxoSmithKline plc, Novartis AG, Roche, Janssen Biotech, Inc., and Flamingo Therapeutics, Inc.
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