Ionis Pharmaceuticals, Inc. (IONS)

NASDAQ: IONS · Real-Time Price · USD

71.78

-0.45 (-0.62%)

At close: Apr 28, 2026, 4:00 PM EDT

72.00

+0.22 (0.31%)

After-hours: Apr 28, 2026, 5:56 PM EDT

Ionis Pharmaceuticals Market Cap

Ionis Pharmaceuticals has a market cap or net worth of $11.86 billion as of April 28, 2026. Its market cap has increased by 179.27% in one year.

Market Cap

11.86B

Enterprise Value

11.76B

1-Year Change

179.27%

Ranking

#840

Market Cap Chart

Since December 1, 1998, Ionis Pharmaceuticals's market cap has increased from $302.10M to $11.86B, an increase of 3,825.02%. That is a compound annual growth rate of 14.32%.

Market Cap History

Date	Market Cap	% Change
Apr 27, 2026	11.93B	-6.88%
Dec 31, 2025	12.81B	132.13%
Dec 31, 2024	5.52B	-23.95%
Dec 29, 2023	7.26B	35.28%
Dec 30, 2022	5.37B	24.86%
Dec 31, 2021	4.30B	-45.65%
Dec 31, 2020	7.91B	-6.97%
Dec 31, 2019	8.50B	14.26%
Dec 31, 2018	7.44B	18.48%
Dec 29, 2017	6.28B	8.28%
Dec 30, 2016	5.80B	-22.07%
Dec 31, 2015	7.44B	1.99%
Dec 31, 2014	7.29B	57.73%
Dec 31, 2013	4.62B	337.67%
Dec 31, 2012	1.06B	46.95%
Dec 30, 2011	719.00M	-28.40%
Dec 31, 2010	1.00B	-8.12%
Dec 31, 2009	1.09B	-20.54%
Dec 31, 2008	1.38B	0.44%
Dec 31, 2007	1.37B	62.24%
Dec 29, 2006	844.10M	123.13%
Dec 30, 2005	378.30M	11.96%
Dec 31, 2004	337.90M	-6.42%
Dec 31, 2003	361.10M	-0.61%
Dec 31, 2002	363.30M	-65.23%

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Market Capitalization

Market capitalization, also called net worth, is the total value of all of a company's outstanding shares. It is calculated by multiplying the stock price by the number of shares outstanding.

Formula: Market Cap = Stock Price * Shares Outstanding

Full Definition

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Market Cap Rankings