Ionis Pharmaceuticals, Inc. (IONS)

NASDAQ: IONS · Real-Time Price · USD

41.24

-2.28 (-5.24%)

At close: Nov 2, 2026, 4:00 PM EST

41.56

+0.32 (0.78%)

After-hours: Nov 2, 2026, 7:30 PM EST

Ionis Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Nov 2, 2026	43.66	43.91	41.19	41.24	41.24	-5.24%	2,562,688
Oct 30, 2026	44.69	45.12	43.27	43.52	43.52	-1.96%	1,522,192
Oct 29, 2026	45.57	45.84	44.04	44.39	44.39	-1.14%	1,833,848
Oct 28, 2026	43.16	44.95	43.05	44.90	44.90	2.14%	1,724,370
Oct 27, 2026	43.23	44.10	43.02	43.96	43.96	1.24%	2,376,841
Oct 26, 2026	43.00	43.92	42.76	43.42	43.42	1.14%	3,197,537
Oct 23, 2026	43.80	43.80	42.58	42.93	42.93	-2.23%	3,015,008
Oct 22, 2026	45.02	45.15	43.41	43.91	43.91	-0.81%	5,012,019
Oct 21, 2026	45.55	45.76	44.26	44.27	44.27	-2.49%	2,269,836
Oct 20, 2026	44.45	45.48	44.01	45.40	45.40	2.30%	2,487,410
Oct 19, 2026	43.33	44.54	43.00	44.38	44.38	3.35%	3,098,987
Oct 16, 2026	44.53	44.65	42.80	42.94	42.94	-2.67%	1,674,884
Oct 15, 2026	43.58	44.71	43.42	44.12	44.12	3.33%	2,484,999
Oct 14, 2026	42.22	43.47	42.08	42.70	42.70	0.76%	2,027,743
Oct 13, 2026	43.55	43.58	42.36	42.38	42.38	-2.95%	2,978,032
Oct 12, 2026	45.37	45.46	43.62	43.67	43.67	-3.56%	1,950,359
Oct 9, 2026	43.21	45.72	43.12	45.28	45.28	4.57%	4,862,320
Oct 8, 2026	43.76	44.19	42.79	43.30	43.30	-1.95%	3,349,330
Oct 7, 2026	43.75	44.26	43.53	44.16	44.16	0.36%	2,943,620
Oct 6, 2026	44.19	44.67	43.17	44.00	44.00	1.15%	2,193,060
Oct 5, 2026	43.75	43.96	42.63	43.50	43.50	-0.09%	2,871,832
Oct 2, 2026	44.17	44.17	43.24	43.54	43.54	-1.05%	2,312,084
Oct 1, 2026	44.63	45.95	43.96	44.00	44.00	-1.46%	2,030,329
Sep 30, 2026	46.07	46.25	44.60	44.65	44.65	-2.70%	2,630,197
Sep 29, 2026	45.53	46.46	45.39	45.89	45.89	0.70%	3,885,842
Sep 28, 2026	44.56	46.95	44.06	45.57	45.57	2.40%	3,742,302
Sep 25, 2026	44.25	45.28	43.62	44.50	44.50	1.57%	6,202,420
Sep 24, 2026	43.77	44.60	43.25	43.81	43.81	-0.27%	6,448,795
Sep 23, 2026	46.23	46.41	43.01	43.93	43.93	-3.98%	3,535,786
Sep 22, 2026	44.96	46.13	44.44	45.75	45.75	1.89%	4,236,217
Sep 21, 2026	44.95	45.25	44.20	44.90	44.90	1.04%	4,521,358
Sep 18, 2026	46.75	46.75	44.27	44.44	44.44	-4.94%	7,369,358
Sep 17, 2026	46.68	47.42	45.75	46.75	46.75	4.26%	4,079,573
Sep 16, 2026	47.38	47.59	44.66	44.84	44.84	-5.10%	7,958,214
Sep 15, 2026	51.37	51.37	46.72	47.25	47.25	-8.15%	6,812,465
Sep 14, 2026	54.88	55.50	51.31	51.44	51.44	-5.11%	5,974,753
Sep 11, 2026	55.94	56.16	54.16	54.21	54.21	-2.59%	2,175,778
Sep 10, 2026	55.75	55.77	54.91	55.65	55.65	-0.66%	3,057,309
Sep 9, 2026	56.38	56.96	55.70	56.02	56.02	-1.22%	3,037,757
Sep 8, 2026	52.15	57.43	52.15	56.71	56.71	-2.38%	9,175,745
Sep 4, 2026	58.36	58.96	57.78	58.09	58.09	-0.07%	2,671,092
Sep 3, 2026	60.42	60.42	57.47	58.13	58.13	-5.22%	4,347,907
Sep 2, 2026	60.25	61.77	59.78	61.33	61.33	2.42%	1,845,866
Sep 1, 2026	60.37	60.99	59.78	59.88	59.88	-0.80%	1,872,594
Aug 31, 2026	61.07	61.07	59.70	60.36	60.36	-1.13%	2,017,160
Aug 28, 2026	60.62	61.69	60.35	61.05	61.05	-2.21%	1,850,852
Aug 27, 2026	63.48	63.48	62.34	62.43	62.43	-1.47%	1,625,581
Aug 26, 2026	63.50	63.55	62.44	63.36	63.36	-0.33%	2,152,847
Aug 25, 2026	62.53	64.19	62.19	63.57	63.57	2.47%	2,435,239
Aug 24, 2026	60.54	62.07	59.70	62.04	62.04	3.85%	2,207,101