Skip to main content
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 Stock Price History

Historical Data

DateOpenHighLowCloseAdj. CloseChangeVolume
Apr 28, 202672.7173.1071.1871.7871.78-0.62%2,396,076
Apr 27, 202674.0475.1072.2172.2372.23-1.42%2,287,083
Apr 24, 202674.0974.5172.3373.2773.27-1.11%1,814,691
Apr 23, 202674.9676.0673.2374.0974.09-0.99%1,377,408
Apr 22, 202675.2275.4474.0074.8374.830.07%1,918,001
Apr 21, 202675.8775.9673.8074.7874.78-0.12%1,818,784
Apr 20, 202675.5075.6274.5874.8774.87-1.11%1,051,309
Apr 17, 202675.6676.3374.9575.7175.710.60%1,708,673
Apr 16, 202676.4276.5373.9175.2675.26-2.03%1,824,635
Apr 15, 202677.1077.1875.7776.8276.820.08%1,283,408
Apr 14, 202674.8877.3874.8876.7676.762.41%1,525,137
Apr 13, 202675.1777.1774.5674.9574.95-0.29%1,650,859
Apr 10, 202677.0277.1574.5375.1775.17-1.65%1,581,518
Apr 9, 202674.9876.9774.6276.4376.431.93%1,199,855
Apr 8, 202676.0776.4874.3074.9874.981.48%1,259,620
Apr 7, 202674.0574.2772.4273.8973.89-0.59%1,118,310
Apr 6, 202674.5475.4873.5674.3374.33-0.62%1,418,955
Apr 2, 202673.7475.1373.3574.7974.79-0.45%1,791,631
Apr 1, 202675.7076.4874.8075.1375.130.05%1,663,432
Mar 31, 202673.6475.9273.4575.0975.093.54%1,852,182
Mar 30, 202673.1273.2171.4872.5272.520.51%2,045,464
Mar 27, 202674.0074.0571.8772.1572.15-2.82%1,948,364
Mar 26, 202672.2575.6370.5074.2474.242.12%3,884,070
Mar 25, 202670.6873.6170.6872.7072.704.33%2,994,308
Mar 24, 202670.2770.6468.9069.6869.68-1.57%1,844,404
Mar 23, 202672.2573.1570.6770.7970.79-0.28%2,198,127
Mar 20, 202671.5172.5970.5070.9970.99-0.46%2,920,652
Mar 19, 202671.4071.9470.5171.3271.32-0.49%2,247,918
Mar 18, 202671.8472.3070.9271.6771.67-0.91%2,180,298
Mar 17, 202672.3573.3071.9272.3372.33-0.01%1,985,030
Mar 16, 202671.5872.8871.2972.3472.341.62%3,231,515
Mar 13, 202673.2174.1670.4271.1971.19-1.59%1,972,137
Mar 12, 202674.3074.3072.0172.3472.34-3.28%2,461,797
Mar 11, 202675.1576.0074.5474.7974.79-1.15%1,895,367
Mar 10, 202675.3677.0374.5175.6675.660.40%2,785,714
Mar 9, 202673.5075.6373.4575.3675.361.78%3,215,157
Mar 6, 202673.9775.1673.1574.0474.04-1.49%1,904,239
Mar 5, 202678.1679.0474.2775.1675.16-5.40%2,969,830
Mar 4, 202679.1680.0777.6779.4579.451.00%2,503,118
Mar 3, 202680.4281.4078.5078.6678.66-4.03%2,045,143
Mar 2, 202679.2782.7579.2781.9681.961.00%3,098,359
Feb 27, 202680.5982.1080.0681.1581.150.68%2,773,689
Feb 26, 202680.3282.4478.9280.6080.60-0.41%3,330,043
Feb 25, 202681.7585.1280.4780.9380.93-5.29%3,188,709
Feb 24, 202684.6685.4783.4585.4585.451.00%2,384,832
Feb 23, 202682.7184.9682.7184.6084.601.74%1,724,186
Feb 20, 202682.8583.6381.6483.1583.150.01%2,832,477
Feb 19, 202681.5083.3480.3983.1583.151.13%2,023,972
Feb 18, 202681.2683.0680.9882.2282.221.06%1,950,099
Feb 17, 202680.3082.5380.2381.3681.360.94%1,889,525
Feb 13, 202681.1882.5679.7880.6080.60-1.44%1,931,201
Feb 12, 202684.2084.9181.2081.7881.78-3.05%1,734,659
Feb 11, 202684.1984.9682.0084.3584.350.07%1,104,176
Feb 10, 202684.4984.8183.5784.2984.29-0.59%1,382,673
Feb 9, 202686.1386.4984.6184.7984.79-1.98%1,738,204
Feb 6, 202684.8586.5984.1886.5086.503.62%1,996,521
Feb 5, 202684.5186.7482.8983.4883.48-1.78%2,677,732
Feb 4, 202685.7285.9582.5584.9984.990.47%3,010,014
Feb 3, 202683.0085.4583.0084.5984.591.83%1,461,130
Feb 2, 202682.5483.3581.9083.0783.070.48%1,788,931
Jan 30, 202683.4883.7082.2182.6782.67-1.44%2,518,439
Jan 29, 202682.3884.3081.9083.8883.882.39%1,646,754
Jan 28, 202681.9282.6381.6381.9281.92-0.27%1,732,406
Jan 27, 202681.0182.5281.0182.1482.141.41%2,338,625
Jan 26, 202679.4981.2879.2481.0081.000.89%1,700,602
Jan 23, 202681.7182.2079.1180.2980.29-1.84%2,128,921
Jan 22, 202679.6282.1978.8981.7981.792.96%3,695,674
Jan 21, 202677.0979.5477.0179.4479.442.46%3,298,663
Jan 20, 202675.0377.9974.2077.5377.531.57%4,894,345
Jan 16, 202677.1578.0074.4976.3376.33-1.14%3,000,587
Jan 15, 202679.2579.7577.1577.2177.21-2.10%1,409,021
Jan 14, 202679.0479.5777.6978.8778.87-0.77%2,121,498
Jan 13, 202682.2482.5778.6179.4879.48-2.67%1,885,179
Jan 12, 202680.5082.2178.8881.6681.661.69%1,570,607
Jan 9, 202682.1783.2379.3080.3080.30-1.52%2,668,760
Jan 8, 202683.1783.7979.9581.5481.54-1.96%2,051,548
Jan 7, 202682.5086.1582.4083.1783.172.06%3,889,646
Jan 6, 202678.8981.5478.0081.4981.493.77%2,651,738
Jan 5, 202679.1879.4276.0878.5378.53-1.43%1,448,687
Jan 2, 202679.8880.2178.0279.6779.670.71%1,400,448
Dec 31, 202578.7879.8478.6379.1179.110.18%1,096,900
Dec 30, 202579.5079.9978.5278.9778.97-1.26%1,146,166
Dec 29, 202579.7380.0478.7479.9879.980.06%1,077,894
Dec 26, 202580.1580.4279.1879.9379.93-0.89%725,281
Dec 24, 202580.3381.0280.3380.6580.650.40%480,227
Dec 23, 202580.6181.8479.6380.3380.33-1.24%1,229,924
Dec 22, 202579.2682.0979.0981.3481.342.22%2,257,844
Dec 19, 202577.8079.8377.6379.5779.572.50%3,557,484
Dec 18, 202577.3978.1676.7077.6377.630.71%1,765,565
Dec 17, 202578.7779.4977.0777.0877.08-1.65%2,146,201
Dec 16, 202579.4179.5677.1678.3778.37-1.74%1,959,742
Dec 15, 202580.3581.0079.3179.7679.76-1.31%1,977,626
Dec 12, 202579.1980.9278.5180.8280.822.12%1,468,893
Dec 11, 202578.6379.8678.0579.1479.140.65%2,052,200
Dec 10, 202579.3879.7177.7978.6378.63-0.29%2,659,323
Dec 9, 202580.5581.2378.3278.8678.86-3.25%1,866,337
Dec 8, 202582.1282.8681.1881.5181.51-0.21%1,553,583
Dec 5, 202582.1982.4480.6481.6881.68-0.16%1,714,986
Dec 4, 202581.9083.6181.4581.8181.81-0.04%2,317,827
Dec 3, 202581.7083.0980.9881.8481.840.65%2,531,161