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IONS
Ionis Pharmaceuticals, Inc. Common Stock
stockNASDAQ

At CloseOct 23, 2026 3:59:58 PM EDT
42.92USD-2.255%(-0.99)3,015,008
Pre-marketOct 23, 2026 9:27:30 AM EDT
44.12USD+0.478%(+0.21)
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Healthcare
Biotechnology
HQ
Carlsbad, CA, USA
Previous Close
$43.91
Beta
0.51
52-Week High
$86.74 2026-07-08
52-Week Low
$42.08 2026-10-14
SMA 50
$50.52
SMA 200
$67.69
Avg. Vol 10D
2.70M
Avg. Vol 30D
3.83M
Avg. Vol 90D
3.44M
Relative Vol
0.79
166.18M
162.92M
22,508,744
0.2800%
1,700,000
5,975
Nov 4, 2026 (11d)
IONS Profile

ionis pharmaceuticals, inc., located in the north san diego county city of carlsbad, was founded in 1989 to create advanced, novel medicines to treat complex and challenging diseases. we are the pioneer in the discovery and development of antisense drugs with more than 1300 patents. ionis is a challenging, motivating and rewarding environment designed to foster innovation and scientific excellence. our founding goals have changed little in over 27 years and our success is a direct result of our outstanding employees. we are interested in bringing together individuals with different skill sets into this creative environment to be part of a productive team. join us and experience our unique culture while you develop and expand your career. for more information about ionis and to apply for an open position, please visit our website: www.ionispharma.com.

IONS Performance
PeriodPriceDateChangeBeta
1W42.942026-10-16-0.12%1.372
1M43.812026-09-24-2.10%1.167
3M56.552026-07-24-24.16%1.200
6M73.272026-04-24-41.46%0.218
1Y70.862025-10-24-39.47%0.514
2Y38.772024-10-24+10.63%—
5Y30.102021-10-25+42.49%0.761
IONS Stock Summary

Ionis Pharmaceuticals, Inc. Common Stock (NASDAQ:IONS) stock price today is $42.89, and today's volume is 3,015,008. IONS is down 2.323% today. The 30 day average volume is 3.83M. IONS market cap is $7.13B with 166.18M shares outstanding.