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

Date Range:

Date	Open	Close	Adj Close	High	Low	Volume
February 20, 2026	82.85	83.15	83.15	83.63	81.64	2.83M
February 19, 2026	81.5	83.15	83.15	83.34	80.39	2.02M
February 18, 2026	81.26	82.22	82.22	83.06	80.98	1.95M
February 17, 2026	80.3	81.36	81.36	82.53	80.23	1.89M
February 13, 2026	81.18	80.6	80.6	82.56	79.78	1.93M
February 12, 2026	84.2	81.78	81.78	84.91	81.2	1.73M
February 11, 2026	84.19	84.35	84.35	84.96	82	1.1M
February 10, 2026	84.49	84.29	84.29	84.81	83.57	1.38M
February 09, 2026	86.13	84.79	84.79	86.49	84.61	1.74M
February 06, 2026	84.42	86.5	86.5	86.59	84.18	1.84M
February 05, 2026	84.51	83.48	83.48	86.74	82.89	2.68M
February 04, 2026	85.72	84.99	84.99	85.95	82.55	3.01M
February 03, 2026	83	84.59	84.59	85.45	83	1.46M
February 02, 2026	82.54	83.07	83.07	83.35	81.9	1.79M
January 30, 2026	83.48	82.67	82.67	83.7	82.21	2.52M
January 29, 2026	82.38	83.88	83.88	84.3	81.9	1.65M
January 28, 2026	81.92	81.92	81.92	82.63	81.63	1.73M
January 27, 2026	81.01	82.14	82.14	82.52	81.01	2.34M
January 26, 2026	79.49	81	81	81.28	79.24	1.7M
January 23, 2026	81.71	80.29	80.29	82.2	79.11	2.13M
January 22, 2026	79.62	81.79	81.79	82.19	78.89	3.7M
January 21, 2026	77.09	79.44	79.44	79.54	77.01	3.3M
January 20, 2026	75.03	77.53	77.53	77.91	74.42	4.24M
January 16, 2026	77.15	76.33	76.33	78	74.49	3M
January 15, 2026	79.47	77.21	77.21	79.75	77.16	1.39M
January 14, 2026	79.04	78.87	78.87	79.57	77.69	2.12M
January 13, 2026	82.24	79.48	79.48	82.57	78.61	1.89M
January 12, 2026	80.5	81.66	81.66	82.21	78.88	1.57M
January 09, 2026	82.17	80.3	80.3	83.23	79.3	2.67M
January 08, 2026	83.17	81.54	81.54	83.79	79.94	2.05M
January 07, 2026	82.5	83.17	83.17	86.15	82.4	3.89M
January 06, 2026	78.89	81.49	81.49	81.54	78	2.65M
January 05, 2026	79.18	78.53	78.53	79.42	76.08	1.45M
January 02, 2026	79.88	79.67	79.67	80.21	78.02	1.4M
December 31, 2025	78.78	79.11	79.11	79.84	78.63	1.1M
December 30, 2025	79.5	78.97	78.97	79.99	78.52	1.15M
December 29, 2025	79.73	79.98	79.98	80.04	78.74	1.08M
December 26, 2025	80.15	79.93	79.93	80.42	79.18	725,300
December 24, 2025	80.33	80.65	80.65	81.02	80.33	480,227
December 23, 2025	80.61	80.33	80.33	81.84	79.63	1.23M
December 22, 2025	79.26	81.34	81.34	82.09	79.09	2.26M
December 19, 2025	77.8	79.57	79.57	79.83	77.63	3.56M
December 18, 2025	77.39	77.63	77.63	78.16	76.69	1.77M
December 17, 2025	78.77	77.08	77.08	79.49	77.07	2.15M
December 16, 2025	79.41	78.37	78.37	79.56	77.16	1.96M
December 15, 2025	80.35	79.76	79.76	81	79.31	1.98M
December 12, 2025	79.19	80.82	80.82	80.92	78.51	1.47M
December 11, 2025	78.63	79.14	79.14	79.86	78.05	2.05M
December 10, 2025	79.38	78.63	78.63	79.71	77.79	2.65M
December 09, 2025	80.55	78.86	78.86	81.22	78.32	1.66M
December 08, 2025	82.12	81.51	81.51	82.86	81.18	1.55M
December 05, 2025	82.19	81.68	81.68	82.44	80.64	1.72M
December 04, 2025	81.9	81.81	81.81	83.61	81.47	2.31M
December 03, 2025	81.7	81.84	81.84	83.09	80.98	2.53M
December 02, 2025	82.38	81.31	81.31	82.69	80	2.45M
December 01, 2025	82.03	81.99	81.99	82.27	80.11	1.87M
November 28, 2025	82.59	82.73	82.73	82.95	81.67	852,943
November 26, 2025	81.15	82.7	82.7	82.91	80.75	2.96M
November 25, 2025	78.52	80.93	80.93	81.2	78.33	2.54M
November 24, 2025	76.34	78.52	78.52	78.79	76.16	3.22M

Ionis Pharmaceuticals, Inc. (IONS) NASDAQ