Ionis Pharmaceuticals Stock Price History

Historical Data

Date	Open	High	Low	Close	Adj. Close	Change	Volume
Feb 6, 2026	84.85	86.59	84.18	86.50	86.50	3.62%	1,835,775
Feb 5, 2026	84.51	86.74	82.89	83.48	83.48	-1.78%	2,677,707
Feb 4, 2026	85.72	85.95	82.55	84.99	84.99	0.47%	3,010,014
Feb 3, 2026	83.00	85.45	83.00	84.59	84.59	1.83%	1,453,042
Feb 2, 2026	82.54	83.35	81.90	83.07	83.07	0.48%	1,783,020
Jan 30, 2026	83.48	83.70	82.21	82.67	82.67	-1.44%	2,518,439
Jan 29, 2026	82.38	84.30	81.90	83.88	83.88	2.39%	1,596,390
Jan 28, 2026	81.92	82.63	81.63	81.92	81.92	-0.27%	1,626,297
Jan 27, 2026	81.01	82.52	81.01	82.14	82.14	1.41%	2,259,730
Jan 26, 2026	79.49	81.28	79.24	81.00	81.00	0.89%	1,690,116
Jan 23, 2026	81.71	82.20	79.11	80.29	80.29	-1.84%	2,128,921
Jan 22, 2026	79.62	82.19	78.89	81.79	81.79	2.96%	3,695,674
Jan 21, 2026	77.09	79.54	77.01	79.44	79.44	2.46%	3,298,663
Jan 20, 2026	75.03	77.99	74.20	77.53	77.53	1.57%	4,894,345
Jan 16, 2026	77.15	78.00	74.49	76.33	76.33	-1.14%	3,000,587
Jan 15, 2026	79.25	79.75	77.15	77.21	77.21	-2.10%	1,409,021
Jan 14, 2026	79.04	79.57	77.69	78.87	78.87	-0.77%	2,121,498
Jan 13, 2026	82.24	82.57	78.61	79.48	79.48	-2.67%	1,885,179
Jan 12, 2026	80.50	82.21	78.88	81.66	81.66	1.69%	1,570,607
Jan 9, 2026	82.17	83.23	79.30	80.30	80.30	-1.52%	2,668,760
Jan 8, 2026	83.17	83.79	79.95	81.54	81.54	-1.96%	2,051,548
Jan 7, 2026	82.50	86.15	82.40	83.17	83.17	2.06%	3,889,646
Jan 6, 2026	78.89	81.54	78.00	81.49	81.49	3.77%	2,651,738
Jan 5, 2026	79.18	79.42	76.08	78.53	78.53	-1.43%	1,448,687
Jan 2, 2026	79.88	80.21	78.02	79.67	79.67	0.71%	1,400,448
Dec 31, 2025	78.78	79.84	78.63	79.11	79.11	0.18%	1,096,900
Dec 30, 2025	79.50	79.99	78.52	78.97	78.97	-1.26%	1,146,166
Dec 29, 2025	79.73	80.04	78.74	79.98	79.98	0.06%	1,077,894
Dec 26, 2025	80.15	80.42	79.18	79.93	79.93	-0.89%	725,281
Dec 24, 2025	80.33	81.02	80.33	80.65	80.65	0.40%	480,227
Dec 23, 2025	80.61	81.84	79.63	80.33	80.33	-1.24%	1,229,924
Dec 22, 2025	79.26	82.09	79.09	81.34	81.34	2.22%	2,257,844
Dec 19, 2025	77.80	79.83	77.63	79.57	79.57	2.50%	3,557,484
Dec 18, 2025	77.39	78.16	76.70	77.63	77.63	0.71%	1,765,565
Dec 17, 2025	78.77	79.49	77.07	77.08	77.08	-1.65%	2,146,201
Dec 16, 2025	79.41	79.56	77.16	78.37	78.37	-1.74%	1,959,742
Dec 15, 2025	80.35	81.00	79.31	79.76	79.76	-1.31%	1,977,626
Dec 12, 2025	79.19	80.92	78.51	80.82	80.82	2.12%	1,468,893
Dec 11, 2025	78.63	79.86	78.05	79.14	79.14	0.65%	2,052,200
Dec 10, 2025	79.38	79.71	77.79	78.63	78.63	-0.29%	2,659,323
Dec 9, 2025	80.55	81.23	78.32	78.86	78.86	-3.25%	1,866,337
Dec 8, 2025	82.12	82.86	81.18	81.51	81.51	-0.21%	1,553,583
Dec 5, 2025	82.19	82.44	80.64	81.68	81.68	-0.16%	1,714,986
Dec 4, 2025	81.90	83.61	81.45	81.81	81.81	-0.04%	2,317,827
Dec 3, 2025	81.70	83.09	80.98	81.84	81.84	0.65%	2,531,161
Dec 2, 2025	82.38	82.69	80.00	81.31	81.31	-0.83%	2,454,566
Dec 1, 2025	82.03	82.27	80.11	81.99	81.99	-0.89%	1,865,505
Nov 28, 2025	82.59	82.95	81.67	82.73	82.73	0.04%	852,943
Nov 26, 2025	81.15	82.91	80.75	82.70	82.70	2.19%	2,955,547
Nov 25, 2025	78.52	81.20	78.33	80.93	80.93	3.07%	2,543,172