Ionis Pharmaceuticals, Inc. - IONS - Stock Historical Data & Price

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
October 17, 2025	72.96	73.09	73.09	74.02	72.32	1.31M
October 16, 2025	73.12	73.07	73.07	74.42	72.07	1.74M
October 15, 2025	71.42	72.39	72.39	73.92	71.24	3.23M
October 14, 2025	70.59	71.37	71.37	72.15	70.08	1.26M
October 13, 2025	70.16	70.59	70.59	71.5	69.84	2.32M
October 10, 2025	70	69.97	69.97	70.49	69.4	1.7M
October 09, 2025	70.21	70.27	70.27	70.89	69.68	1.96M
October 08, 2025	70.49	69.96	69.96	71.87	69.6	3.1M
October 07, 2025	69	68.94	68.94	69.77	67.95	1.9M
October 06, 2025	69.15	69.02	69.02	70.14	68.85	1.82M
October 03, 2025	68.33	69.15	69.15	69.25	67.64	2.58M
October 02, 2025	66.21	68.4	68.4	68.41	65.97	3M
October 01, 2025	65.35	65.8	65.8	66.25	64.93	2.22M
September 30, 2025	63.9	65.42	65.42	65.55	63.66	2.14M
September 29, 2025	63.76	64.15	64.15	64.7	63.36	1.45M
September 26, 2025	64.03	64.09	64.09	64.49	63.05	1.52M
September 25, 2025	63.47	62.97	62.97	64.07	62.72	2.31M
September 24, 2025	62.65	63.94	63.94	63.99	62.19	1.59M
September 23, 2025	61.51	62.57	62.57	63.13	61.03	2.07M
September 22, 2025	63.18	61.36	61.36	63.18	61.05	2.68M
September 19, 2025	61.91	61.01	61.01	62	60.41	3.31M
September 18, 2025	62.15	61.74	61.74	62.52	61.21	1.64M
September 17, 2025	61.44	61.17	61.17	62.1	60.86	1.64M
September 16, 2025	61.03	61.32	61.32	61.54	60.67	1.79M
September 15, 2025	62.94	61.1	61.1	63.42	60.64	2.15M
September 12, 2025	63.85	63.16	63.16	64.61	63.07	1.47M
September 11, 2025	63.65	64.04	64.04	64.21	62.79	1.82M
September 10, 2025	64.3	64	64	64.72	62.84	2.26M
September 09, 2025	61.15	64.4	64.4	64.71	60.99	4.3M
September 08, 2025	61.2	61	61	61.26	59.36	2.77M
September 05, 2025	59.43	61.23	61.23	62.01	59.22	3.2M
September 04, 2025	59.34	59.35	59.35	60.75	58.85	3.91M
September 03, 2025	58.98	60.49	60.49	62.08	58.56	10.34M
September 02, 2025	49.14	57.49	57.49	57.92	49.13	16.46M
August 29, 2025	42.5	42.64	42.64	42.75	42.13	1.15M
August 28, 2025	42.75	42.62	42.62	43.35	42.6	1.1M
August 27, 2025	42.17	42.75	42.75	43.09	41.95	1.95M
August 26, 2025	41.71	42.17	42.17	42.57	41.71	2.6M
August 25, 2025	42.82	41.82	41.82	43.06	41.79	1.57M
August 22, 2025	43.68	42.69	42.69	43.72	42.09	1.86M
August 21, 2025	42.6	43.24	43.24	44.99	42.47	1.88M
August 20, 2025	42.45	42.81	42.81	43.26	41.96	2.29M
August 19, 2025	43.49	42.48	42.48	43.9	42.27	2M
August 18, 2025	43.99	43.43	43.43	44.29	43.41	1.5M
August 15, 2025	42.86	43.78	43.78	43.82	42.8	1.6M
August 14, 2025	43	42.85	42.85	43.4	42.44	1.58M
August 13, 2025	41.54	43.1	43.1	43.22	41.54	3.02M
August 12, 2025	40.87	41.41	41.41	41.42	40.37	1.5M
August 11, 2025	41.51	40.84	40.84	41.93	40.79	1.8M
August 08, 2025	40.89	41.64	41.64	41.76	40.86	1.74M
August 07, 2025	40.34	41.05	41.05	41.13	40.03	2.74M
August 06, 2025	42.65	40.69	40.69	42.87	40.66	2.47M
August 05, 2025	43.15	43.05	43.05	43.52	42.51	2.82M
August 04, 2025	43.15	43.45	43.45	43.74	42.26	2.31M
August 01, 2025	42.65	43.03	43.03	43.4	42.28	2.33M
July 31, 2025	44.37	42.98	42.98	44.98	42.33	3.54M
July 30, 2025	44.97	43.37	43.37	45.66	42.95	4.18M
July 29, 2025	41.59	41.48	41.48	41.65	40.81	1.5M
July 28, 2025	42.43	41.17	41.17	42.49	41.15	1.64M
July 25, 2025	42.34	42.25	42.25	42.55	41.6	887,900

Ionis Pharmaceuticals, Inc. (IONS) NASDAQ