Ionis Pharmaceuticals, Inc.
IONS
Rank in Stocks
#2587
Founded in 1989 and headquartered in Carlsbad, California, Ionis... 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.
Share Price
$44.35
Last synced: 2026-10-19
Market Cap
$7.37B
Change (1 day)
3.28%
Change (1 year)
-39.70%
Country
US
Trade Ionis Pharmaceuticals, Inc. (IONS)
Category
Healthcare
Number of shares outstanding for Ionis Pharmaceuticals, Inc. (IONS)
Number of shares outstanding as of June 2026: 165.42M
According to Ionis Pharmaceuticals, Inc. latest financial reports and stock price the company's current number of shares outstanding is 165.42M. At the end of December 2023 the company had 143.00M shares outstanding. The number of outstanding shares is usually impacted by stock plits and shares buy back.
Shares outstanding history for Ionis Pharmaceuticals, Inc. (IONS) from 2000 to 2026
Shares Outstanding at the end of each year
| Year | Shares Outstanding | Change |
|---|---|---|
| 2026 (TTM) | 165.42M | 10.64% |
| 2024 | 149.51M | 4.56% |
| 2023 | 143.00M | 0.81% |
| 2022 | 141.85M | 0.59% |
| 2021 | 141.02M | 1.01% |
| 2020 | 139.61M | -0.28% |
| 2019 | 140.00M | 5.80% |
| 2018 | 132.32M | 6.70% |
| 2017 | 124.02M | 2.66% |
| 2016 | 120.80M | 1.26% |
| 2015 | 119.29M | 1.36% |
| 2014 | 117.69M | 6.51% |
| 2013 | 110.50M | 9.87% |
| 2012 | 100.58M | 0.92% |
| 2011 | 99.66M | 0.52% |
| 2010 | 99.14M | 1.05% |
| 2009 | 98.11M | 3.75% |
| 2008 | 94.57M | 12.93% |
| 2007 | 83.74M | 12.69% |
| 2006 | 74.31M | 18.18% |
| 2005 | 62.88M | 11.01% |
| 2004 | 56.64M | 2.13% |
| 2003 | 55.46M | 1.80% |
| 2002 | 54.48M | 23.51% |
| 2001 | 44.11M | 19.14% |
| 2000 | 37.02M | 0.00% |
Shares Outstanding for similar companies or competitors
| Company | Shares Outstanding | Difference | Country |
|---|---|---|---|
| 253.90M | 53.49% |
US
|
|
| 396.00M | 139.39% |
US
|
|
| 478.91M | 189.51% |
AU
|
|
| - | - |
CH
|
|
| 62.19M | -62.41% |
NL
|
