Ionis Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 11, 2026	85.00	85.00	82.03	83.29	83.29	-0.72%	296
Feb 10, 2026	86.03	86.03	83.52	83.89	83.89	-1.33%	426
Feb 9, 2026	86.50	86.50	84.92	85.02	85.02	-1.13%	118
Feb 6, 2026	85.00	86.14	84.50	86.00	86.00	1.16%	801
Feb 5, 2026	82.75	86.72	82.75	85.01	85.01	0.85%	1,177
Feb 4, 2026	85.85	85.95	82.85	84.29	84.29	0.21%	1,281
Feb 3, 2026	83.65	85.12	83.00	84.11	84.11	1.42%	1,022
Feb 2, 2026	82.67	83.40	81.80	82.93	82.93	0.24%	408
Jan 30, 2026	82.12	84.44	82.12	82.73	82.73	-0.82%	149
Jan 29, 2026	81.42	83.88	81.42	83.41	83.41	1.39%	640
Jan 28, 2026	81.81	82.57	81.58	82.27	82.27	0.04%	336
Jan 27, 2026	81.40	82.69	81.26	82.24	82.24	2.41%	819
Jan 26, 2026	79.49	81.24	79.21	80.30	80.30	0.60%	31
Jan 23, 2026	81.88	81.88	79.58	79.82	79.82	-2.07%	258
Jan 22, 2026	79.75	81.51	79.00	81.51	81.51	3.72%	3
Jan 21, 2026	77.09	78.79	77.09	78.59	78.59	2.77%	105
Jan 20, 2026	75.27	76.47	74.20	76.47	76.47	1.77%	113
Jan 16, 2026	76.73	77.99	74.52	75.14	75.14	-3.45%	2,995
Jan 15, 2026	78.49	79.32	77.80	77.82	77.82	-1.23%	1,112
Jan 14, 2026	79.04	79.84	77.75	78.79	78.79	-0.61%	304
Jan 13, 2026	82.00	82.50	79.27	79.27	79.27	-2.33%	952
Jan 12, 2026	78.00	81.17	78.00	81.17	81.17	2.27%	353
Jan 9, 2026	82.53	82.97	79.36	79.36	79.36	-1.81%	3,028
Jan 8, 2026	83.98	83.98	80.83	80.83	80.83	-3.46%	4,519
Jan 7, 2026	81.78	86.07	81.77	83.73	83.73	3.82%	1,739
Jan 6, 2026	79.92	80.84	78.13	80.65	80.65	5.02%	8,332
Jan 5, 2026	79.61	79.61	76.50	76.79	76.79	-2.72%	519
Jan 2, 2026	79.75	80.00	78.30	78.94	78.94	-0.67%	1,402
Dec 31, 2025	79.97	79.97	79.16	79.47	79.47	0.88%	36
Dec 30, 2025	79.85	79.85	78.75	78.78	78.78	-1.49%	340
Dec 29, 2025	79.43	79.97	79.18	79.97	79.97	-1.08%	433
Dec 24, 2025	81.00	81.00	80.46	80.84	80.84	1.32%	43
Dec 23, 2025	80.61	81.82	79.79	79.79	79.79	-2.38%	73
Dec 22, 2025	79.07	81.77	79.07	81.74	81.74	3.15%	225
Dec 19, 2025	77.60	79.24	77.60	79.24	79.24	1.75%	50
Dec 18, 2025	77.08	77.88	77.00	77.88	77.88	-0.82%	90
Dec 17, 2025	78.77	79.18	77.99	78.52	78.52	0.99%	12
Dec 16, 2025	79.11	79.36	77.35	77.75	77.75	-3.07%	521
Dec 15, 2025	79.36	80.79	79.36	80.21	80.21	0.34%	57
Dec 12, 2025	79.19	79.94	78.65	79.94	79.94	0.56%	208
Dec 11, 2025	78.62	79.62	78.13	79.49	79.49	0.67%	23
Dec 10, 2025	79.35	79.38	77.96	78.96	78.96	-0.44%	182
Dec 9, 2025	80.12	80.99	78.97	79.31	79.31	-3.32%	206
Dec 8, 2025	82.47	82.90	81.58	82.03	82.03	0.47%	239
Dec 5, 2025	82.02	82.51	80.86	81.65	81.65	-1.14%	272
Dec 4, 2025	82.25	82.59	81.51	82.59	82.59	0.13%	74
Dec 3, 2025	81.93	83.00	81.66	82.49	82.49	0.85%	323
Dec 2, 2025	82.01	82.84	80.41	81.79	81.79	0.36%	635
Dec 1, 2025	82.44	82.44	80.51	81.50	81.50	-1.27%	599
Nov 28, 2025	81.82	82.99	81.82	82.55	82.55	0.03%	163