Ionis Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Oct 31, 2025	74.50	75.49	74.02	74.30	74.30	0.18%	2,395,612
Oct 30, 2025	71.91	74.70	71.66	74.17	74.17	3.19%	2,177,727
Oct 29, 2025	72.37	74.05	71.14	71.88	71.88	-2.30%	2,164,198
Oct 28, 2025	72.99	74.04	72.50	73.57	73.57	0.79%	2,559,568
Oct 27, 2025	72.03	73.27	71.46	72.99	72.99	3.01%	1,842,613
Oct 24, 2025	72.39	72.44	70.22	70.86	70.86	-0.90%	1,990,370
Oct 23, 2025	71.69	72.44	71.05	71.50	71.50	-	1,605,852
Oct 22, 2025	71.23	71.98	70.60	71.50	71.50	-0.20%	1,508,356
Oct 21, 2025	72.94	73.20	70.47	71.64	71.64	-2.60%	2,529,928
Oct 20, 2025	73.55	73.69	72.30	73.55	73.55	0.63%	1,395,624
Oct 17, 2025	72.96	74.02	72.32	73.09	73.09	0.03%	1,310,772
Oct 16, 2025	73.12	74.42	72.07	73.07	73.07	0.94%	1,739,636
Oct 15, 2025	71.42	73.92	71.24	72.39	72.39	1.43%	3,234,234
Oct 14, 2025	70.59	72.15	70.08	71.37	71.37	1.10%	1,264,896
Oct 13, 2025	70.16	71.50	69.84	70.59	70.59	0.89%	2,624,101
Oct 10, 2025	70.00	70.49	69.40	69.97	69.97	-0.43%	1,697,166
Oct 9, 2025	70.21	70.89	69.68	70.27	70.27	0.44%	1,959,024
Oct 8, 2025	70.49	71.87	69.60	69.96	69.96	1.48%	3,102,776
Oct 7, 2025	69.00	69.77	67.95	68.94	68.94	-0.12%	1,903,691
Oct 6, 2025	69.15	70.14	68.85	69.02	69.02	-0.19%	1,824,037
Oct 3, 2025	68.33	69.25	67.64	69.15	69.15	1.10%	2,579,755
Oct 2, 2025	66.21	68.41	65.97	68.40	68.40	3.95%	2,999,333
Oct 1, 2025	65.35	66.25	64.93	65.80	65.80	0.58%	2,222,143
Sep 30, 2025	63.90	65.55	63.66	65.42	65.42	1.98%	2,140,270
Sep 29, 2025	63.76	64.70	63.36	64.15	64.15	0.09%	1,454,533
Sep 26, 2025	64.03	64.49	63.05	64.09	64.09	1.78%	1,522,295
Sep 25, 2025	63.47	64.07	62.72	62.97	62.97	-1.52%	2,314,520
Sep 24, 2025	62.65	63.99	62.19	63.94	63.94	2.19%	1,592,919
Sep 23, 2025	61.51	63.13	61.03	62.57	62.57	1.97%	2,066,238
Sep 22, 2025	63.18	63.18	61.05	61.36	61.36	0.57%	2,682,881
Sep 19, 2025	61.91	62.00	60.41	61.01	61.01	-1.18%	3,305,122
Sep 18, 2025	62.15	62.52	61.21	61.74	61.74	0.93%	1,644,660
Sep 17, 2025	61.44	62.10	60.86	61.17	61.17	-0.24%	1,636,439
Sep 16, 2025	61.03	61.54	60.67	61.32	61.32	0.35%	1,787,612
Sep 15, 2025	62.94	63.42	60.64	61.10	61.10	-3.26%	2,151,273
Sep 12, 2025	63.85	64.61	63.07	63.16	63.16	-1.37%	1,471,497
Sep 11, 2025	63.65	64.21	62.79	64.04	64.04	0.06%	1,816,829
Sep 10, 2025	64.30	64.72	62.84	64.00	64.00	-0.62%	2,258,156
Sep 9, 2025	61.15	64.71	60.99	64.40	64.40	5.57%	4,303,839
Sep 8, 2025	61.20	61.26	59.36	61.00	61.00	-0.38%	2,774,558
Sep 5, 2025	59.43	62.01	59.22	61.23	61.23	3.17%	3,197,740
Sep 4, 2025	59.34	60.75	58.85	59.35	59.35	-1.88%	3,906,664
Sep 3, 2025	58.98	62.08	58.56	60.49	60.49	5.22%	10,336,004
Sep 2, 2025	49.14	57.92	49.13	57.49	57.49	34.84%	16,461,729
Aug 29, 2025	42.50	42.75	42.13	42.64	42.64	0.04%	1,152,750
Aug 28, 2025	42.75	43.35	42.60	42.62	42.62	-0.30%	1,097,745
Aug 27, 2025	42.17	43.09	41.95	42.75	42.75	1.38%	1,949,911
Aug 26, 2025	41.71	42.57	41.71	42.17	42.17	0.84%	2,596,462
Aug 25, 2025	42.82	43.06	41.79	41.82	41.82	-2.04%	1,571,973
Aug 22, 2025	43.68	43.72	42.09	42.69	42.69	-1.26%	1,859,935