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Ionis Pharmaceuticals, Inc. (IONS)
NASDAQ: IONS · Real-Time Price · USD
81.68
-0.13 (-0.16%)
At close: Dec 5, 2025, 4:00 PM EST
80.75
-0.93 (-1.14%)
After-hours: Dec 5, 2025, 6:34 PM EST

Ionis Pharmaceuticals Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Dec 5, 202582.1982.4480.6481.6881.68-0.16%1,714,476
Dec 4, 202581.9083.6181.4581.8181.81-0.04%2,312,966
Dec 3, 202581.7083.0980.9881.8481.840.65%2,530,628
Dec 2, 202582.3882.6980.0081.3181.31-0.83%2,454,554
Dec 1, 202582.0382.2780.1181.9981.99-0.89%1,865,402
Nov 28, 202582.5982.9581.6782.7382.730.04%852,943
Nov 26, 202581.1582.9180.7582.7082.702.19%2,955,547
Nov 25, 202578.5281.2078.3380.9380.933.07%2,543,172
Nov 24, 202576.3478.7976.1678.5278.523.19%3,217,036
Nov 21, 202573.0076.3173.0076.0976.094.06%2,076,032
Nov 20, 202574.1775.4072.5073.1273.12-1.19%3,208,760
Nov 19, 202574.5575.0071.8374.0074.00-0.67%3,620,815
Nov 18, 202572.8174.5271.9974.5074.501.69%2,056,681
Nov 17, 202570.7074.4270.7073.2673.262.39%3,504,705
Nov 14, 202569.6672.5468.9071.5571.552.45%3,372,265
Nov 13, 202572.5673.0568.2269.8469.84-3.89%11,502,846
Nov 12, 202571.1974.5070.4072.6772.670.30%5,067,958
Nov 11, 202569.3272.7968.5572.4572.454.18%2,268,649
Nov 10, 202570.0571.4966.6669.5469.54-5.45%4,399,684
Nov 7, 202573.5875.0072.3673.5573.55-0.74%2,332,419
Nov 6, 202574.5876.7873.9174.1074.10-0.78%2,424,206
Nov 5, 202572.1475.0871.4874.6874.682.47%2,259,305
Nov 4, 202572.4074.2172.4072.8872.88-1.05%1,726,391
Nov 3, 202574.7775.2571.9573.6573.65-0.87%2,576,035
Oct 31, 202574.5075.4974.0274.3074.300.18%2,395,612
Oct 30, 202571.9174.7071.6674.1774.173.19%2,177,727
Oct 29, 202572.3774.0571.1471.8871.88-2.30%2,164,198
Oct 28, 202572.9974.0472.5073.5773.570.79%2,559,568
Oct 27, 202572.0373.2771.4672.9972.993.01%1,842,613
Oct 24, 202572.3972.4470.2270.8670.86-0.90%1,990,370
Oct 23, 202571.6972.4471.0571.5071.50-1,605,852
Oct 22, 202571.2371.9870.6071.5071.50-0.20%1,508,356
Oct 21, 202572.9473.2070.4771.6471.64-2.60%2,529,928
Oct 20, 202573.5573.6972.3073.5573.550.63%1,395,624
Oct 17, 202572.9674.0272.3273.0973.090.03%1,310,772
Oct 16, 202573.1274.4272.0773.0773.070.94%1,739,636
Oct 15, 202571.4273.9271.2472.3972.391.43%3,234,234
Oct 14, 202570.5972.1570.0871.3771.371.10%1,264,896
Oct 13, 202570.1671.5069.8470.5970.590.89%2,624,101
Oct 10, 202570.0070.4969.4069.9769.97-0.43%1,697,166
Oct 9, 202570.2170.8969.6870.2770.270.44%1,959,024
Oct 8, 202570.4971.8769.6069.9669.961.48%3,102,776
Oct 7, 202569.0069.7767.9568.9468.94-0.12%1,903,691
Oct 6, 202569.1570.1468.8569.0269.02-0.19%1,824,037
Oct 3, 202568.3369.2567.6469.1569.151.10%2,579,755
Oct 2, 202566.2168.4165.9768.4068.403.95%2,999,333
Oct 1, 202565.3566.2564.9365.8065.800.58%2,222,143
Sep 30, 202563.9065.5563.6665.4265.421.98%2,140,270
Sep 29, 202563.7664.7063.3664.1564.150.09%1,454,533
Sep 26, 202564.0364.4963.0564.0964.091.78%1,522,295