Ionis Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
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
Aug 21, 2025	42.60	44.99	42.47	43.24	43.24	0.99%	1,876,589
Aug 20, 2025	42.45	43.26	41.96	42.81	42.81	0.78%	2,285,988
Aug 19, 2025	43.49	43.90	42.27	42.48	42.48	-2.19%	2,003,784
Aug 18, 2025	43.99	44.29	43.41	43.43	43.43	-0.80%	1,500,750
Aug 15, 2025	42.86	43.82	42.80	43.78	43.78	2.17%	1,602,702
Aug 14, 2025	43.00	43.40	42.44	42.85	42.85	-0.58%	1,582,645
Aug 13, 2025	41.54	43.22	41.54	43.10	43.10	4.08%	3,020,967
Aug 12, 2025	40.87	41.42	40.37	41.41	41.41	1.40%	1,496,847
Aug 11, 2025	41.51	41.93	40.79	40.84	40.84	-1.92%	1,799,768
Aug 8, 2025	40.89	41.76	40.86	41.64	41.64	1.44%	1,739,246
Aug 7, 2025	40.34	41.13	40.03	41.05	41.05	0.88%	2,741,663
Aug 6, 2025	42.65	42.87	40.66	40.69	40.69	-5.48%	2,469,807
Aug 5, 2025	43.15	43.52	42.51	43.05	43.05	-0.92%	2,818,449
Aug 4, 2025	43.15	43.74	42.26	43.45	43.45	0.98%	2,311,260
Aug 1, 2025	42.65	43.40	42.28	43.03	43.03	0.12%	2,327,853
Jul 31, 2025	44.37	44.98	42.33	42.98	42.98	-0.90%	3,544,061
Jul 30, 2025	44.97	45.66	42.95	43.37	43.37	4.56%	4,183,352
Jul 29, 2025	41.59	41.65	40.81	41.48	41.48	0.75%	1,503,992
Jul 28, 2025	42.43	42.49	41.15	41.17	41.17	-2.54%	1,640,746
Jul 25, 2025	42.34	42.55	41.60	42.25	42.25	0.23%	887,852
Jul 24, 2025	42.35	42.81	42.12	42.15	42.15	-0.54%	879,296
Jul 23, 2025	42.27	42.77	41.70	42.38	42.38	1.03%	1,440,178
Jul 22, 2025	41.51	42.22	41.25	41.95	41.95	0.96%	1,458,531
Jul 21, 2025	41.97	42.58	41.49	41.55	41.55	-0.50%	1,418,085
Jul 18, 2025	42.15	42.57	41.25	41.76	41.76	-0.97%	1,266,278
Jul 17, 2025	42.90	43.30	42.12	42.17	42.17	-1.40%	1,996,392
Jul 16, 2025	42.09	42.91	41.79	42.77	42.77	1.83%	1,384,417
Jul 15, 2025	42.78	42.99	41.62	42.00	42.00	-1.29%	1,799,434
Jul 14, 2025	41.38	43.64	41.28	42.55	42.55	1.97%	2,444,915
Jul 11, 2025	42.00	42.19	41.45	41.73	41.73	-1.53%	1,545,454
Jul 10, 2025	42.92	42.92	41.67	42.38	42.38	-1.05%	1,951,967
Jul 9, 2025	41.65	42.95	41.44	42.83	42.83	3.60%	1,686,234
Jul 8, 2025	41.52	42.13	41.22	41.34	41.34	-1.05%	1,752,923
Jul 7, 2025	42.68	42.68	41.43	41.78	41.78	-2.84%	2,239,897
Jul 3, 2025	43.35	43.66	42.44	43.00	43.00	-1.35%	1,335,953
Jul 2, 2025	39.97	43.71	39.86	43.59	43.59	9.14%	4,232,744