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Ionis Pharmaceuticals - 34 Year Stock Price History | IONS

Historical daily share price chart and data for Ionis Pharmaceuticals since 1991 adjusted for splits and dividends. The latest closing stock price for Ionis Pharmaceuticals as of June 18, 2025 is 37.01.
  • The all-time high Ionis Pharmaceuticals stock closing price was 86.14 on April 08, 2019.
  • The Ionis Pharmaceuticals 52-week high stock price is 52.34, which is 41.4% above the current share price.
  • The Ionis Pharmaceuticals 52-week low stock price is 23.95, which is 35.3% below the current share price.
  • The average Ionis Pharmaceuticals stock price for the last 52 weeks is 37.61.
For more information on how our historical price data is adjusted see the Stock Price Adjustment Guide.
  
Ionis Pharmaceuticals Historical Annual Stock Price Data
Year Average Stock Price Year Open Year High Year Low Year Close Annual % Change
2025 32.3485 34.6900 37.0100 25.5100 37.0100 5.86%
2024 43.1008 52.8700 53.5500 33.7300 34.9600 -30.90%
2023 41.3095 37.5800 51.6300 33.5800 50.5900 33.94%
2022 38.7002 32.6000 48.6600 29.8800 37.7700 24.12%
2021 40.8556 56.7800 63.7800 25.6100 30.4300 -46.18%
2020 54.1692 60.8900 63.4000 41.6000 56.5400 -6.41%
2019 64.9707 53.7700 86.1400 52.9200 60.4100 11.75%
2018 48.2373 49.2500 59.5400 40.5300 54.0600 7.48%
2017 49.6931 47.3400 64.3900 37.9100 50.3000 5.16%
2016 35.8627 61.6800 61.6800 20.6200 47.8300 -22.77%
2015 59.1678 61.5700 77.0800 38.0400 61.9300 0.31%
2014 41.1384 39.8700 65.0900 22.9800 61.7400 54.97%
2013 25.5855 10.8200 41.6800 10.4900 39.8400 281.61%
2012 10.2666 7.2500 15.4100 7.0900 10.4400 44.80%
2011 8.2683 10.2900 10.3500 6.4700 7.2100 -28.75%
2010 9.6054 11.2700 11.7600 7.7800 10.1200 -8.91%
2009 14.2888 14.4700 18.7000 9.9400 11.1100 -21.65%
2008 14.7687 15.3800 19.0800 10.3700 14.1800 -9.97%
2007 12.1630 10.9300 17.7000 8.3700 15.7500 41.64%
2006 7.7520 5.2500 12.4900 5.1000 11.1200 112.21%
2005 4.4809 5.8000 5.8000 2.8000 5.2400 -11.19%
2004 6.3211 6.8100 9.5000 4.2700 5.9000 -9.23%
2003 5.5755 6.8400 8.0500 2.8000 6.5000 -1.37%
2002 11.4563 21.0500 21.2300 6.1900 6.5900 -70.30%
2001 14.2338 9.6250 26.6500 7.9375 22.1900 108.85%
2000 11.8580 5.8188 33.8125 5.8188 10.6250 71.64%
1999 10.7581 12.3329 15.6513 4.9832 6.1902 -48.11%
1998 11.6561 11.6413 14.4652 6.5122 11.9294 5.08%
1997 14.4116 16.5975 17.8653 10.6039 11.3531 -31.60%
1996 14.2324 12.1023 21.7842 9.6819 16.5975 37.14%
1995 9.0421 3.4578 13.8312 3.4578 12.1023 228.13%
1994 5.4607 6.5698 7.7224 3.1120 3.6883 -40.74%
1993 6.1197 8.9903 10.1429 5.0715 6.2241 -30.77%
1992 8.9899 12.2176 15.2144 4.8409 8.9903 -29.09%
Sector Industry Market Cap Revenue
Medical Medical - Drug Manufacturing $5.890B $0.705B
Ionis Pharmaceuticals discovers/develops RNA-targeted therapeutics using its proprietary antisense oligonucleotide technology. Its antisense medicines have been developed/are being developed to treat neurological, cardiovascular and specialty rare diseases.
Stock Name Country Market Cap PE Ratio
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Zoetis (ZTS) United States $69.034B 25.76
Takeda Pharmaceutical (TAK) Japan $47.411B 9.43
Daiichi Sankyo, - (DSNKY) Japan $44.972B 23.05
BeOne Medicines - (ONC) Cayman Islands $27.694B 0.00
Sandoz Group AG (SDZNY) Switzerland $23.360B 0.00
Merck (MKKGY) Germany $16.226B 11.89
Summit Therapeutics (SMMT) United States $14.972B 0.00
Shionogi (SGIOY) Japan $14.581B 14.61
United Therapeutics (UTHR) United States $13.159B 11.64
Neurocrine Biosciences (NBIX) United States $12.599B 43.16
Orion OYJ (ORINY) Finland $10.006B 27.06
IPSEN (IPSEY) France $9.836B 0.00
Corcept Therapeutics (CORT) United States $7.555B 61.41
Stevanato Group S.p.A (STVN) Italy $7.193B 43.98
Madrigal Pharmaceuticals (MDGL) United States $6.277B 0.00
Hikma Pharmaceuticals Plc (HKMPF) United Kingdom $6.153B 0.00
Grifols, S.A (GRFS) Spain $5.982B 0.00
Ono Pharmaceutical (OPHLF) Japan $5.031B 15.30
Soleno Therapeutics (SLNO) United States $4.000B 0.00
Hypermarcas (HYPMY) Brazil $3.132B 20.60
Crinetics Pharmaceuticals (CRNX) United States $2.856B 0.00
Catalyst Pharmaceuticals (CPRX) United States $2.782B 9.75
AMNEAL PHARMACEUTICALS, INC (AMRX) United States $2.489B 13.46
BioCryst Pharmaceuticals (BCRX) United States $2.084B 0.00
Recursion Pharmaceuticals (RXRX) United States $2.077B 0.00
NewAmsterdam Pharma (NAMS) Netherlands $2.043B 0.00
Indivior (INDV) United States $1.917B 8.13
Centessa Pharmaceuticals (CNTA) United Kingdom $1.693B 0.00
Endo (NDOI) United States $1.618B 0.00
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Avadel Pharmaceuticals (AVDL) Ireland $0.902B 0.00
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ProKidney (PROK) United States $0.204B 0.00
Profound Medical (PROF) Canada $0.203B 0.00
Nanobiotix S.A (NBTX) France $0.202B 0.00
OmniAb (OABI) United States $0.202B 0.00
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Aclaris Therapeutics (ACRS) United States $0.154B 0.00
Journey Medical (DERM) United States $0.148B 0.00
Innate Pharma SA (IPHYF) France $0.145B 0.00
Lyell Immunopharma (LYEL) United States $0.142B 0.00
Lexeo Therapeutics (LXEO) United States $0.141B 0.00
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Korro Bio (KRRO) United States $0.117B 0.00
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Protara Therapeutics (TARA) United States $0.115B 0.00
Ironwood Pharmaceuticals (IRWD) United States $0.113B 0.00
Cardiol Therapeutics (CRDL) Canada $0.109B 0.00
Achieve Life Sciences (ACHV) Canada $0.109B 0.00
Nektar Therapeutics (NKTR) United States $0.107B 0.00
Corbus Pharmaceuticals Holdings (CRBP) United States $0.102B 0.00
Cassava Sciences (SAVA) United States $0.100B 0.00
Fractyl Health (GUTS) United States $0.094B 0.00
Dominari Holdings (DOMH) United States $0.092B 0.00
Wellgistics Health (WGRX) United States $0.088B 0.00
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ElectroCore (ECOR) United States $0.039B 0.00
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VYNE Therapeutics (VYNE) United States $0.014B 0.00
Lyra Therapeutics (LYRA) United States $0.014B 0.00
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Traws Pharma (TRAW) United States $0.009B 0.00
Addex Therapeutics (ADXN) Switzerland $0.009B 0.00
NLS Pharmaceutics (NLSP) Switzerland $0.008B 0.00
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Nuvilex (PMCB) United States $0.007B 0.00
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Conduit Pharmaceuticals (CDT) United States $0.002B 0.00
Shuttle Pharmaceuticals Holdings (SHPH) United States $0.002B 0.00
Universe Pharmaceuticals INC (UPC) China $0.000B 0.00
4D Pharma (LBPS) United Kingdom $0.000B 0.00
MEI Pharma (MEIP) United States $0.000B 0.00
Patheon (PTHN) Netherlands $0.000B 0.00
RVL Pharmaceuticals (RVLP) United States $0.000B 0.00
Silence Therapeutics (SLN) United Kingdom $0.000B 0.00