Ionis Pharmaceuticals, Inc IONS

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Ionis Pharmaceuticals, Inc. - Common Stock · Company · Nasdaq

Paper trade (simulated — no real money)

Fill: USD 56.5500 · FX 1 USD = 1.288650 SGD · about SGD 72.8732 per unit

Sign in to place simulated trades. USD fills are converted into the SGD portfolio at the displayed rate.

Announcement types: (default: consequential filings)
Results & current reports
Capital markets
Ownership & governance

USD closing-price chart (daily close from yfinance · Last year)

USD 41.17 → 56.55 · 37.4%
86.50063.59540.690 1,2 3 4 5 6,7 8 9 10 11 12 13 14 15 16 17,18 19,20 21 22 23 24 25 26 Jul 25Oct 25Jan 26Apr 26Jul 26

Numbered dotted lines mark the filtered filings under Announcement Events below.

Price & SEC Filing History 26 Jul 2025 — 27 Jul 2026 (Last year)

Daily Nasdaq prices are sourced from yfinance. Yellow highlighting marks an intraday rise or a gap up between adjacent trading sessions. SEC acceptance times are converted to US Eastern time: pre-market filings appear below that day’s OHLCV row; filings accepted after the 09:30 ET open appear above it. The SEC does not publish an exact first-public-availability timestamp, so acceptance time is the best available proxy.

No data yet
Weekend
Weekend
56.3200 57.3600 56.1900 56.5500 3,094,700
53.7100 57.4800 53.3500 55.8700 3,834,300
51.1600 54.0600 50.0100 54.0100 8,732,700
52.7500 54.1300 52.2600 53.3900 3,074,000
54.4700 54.8000 52.8200 52.9500 2,166,900
Weekend
Weekend
54.1000 54.6900 53.7600 54.3900 2,572,800
53.9500 55.9800 53.3800 54.6500 3,805,300
54.4800 54.8900 53.5100 54.7300 3,577,100
55.8000 56.4600 54.5300 54.9300 4,700,000
57.9100 57.9100 56.1100 56.7500 5,097,900
Weekend
Weekend
64.2700 64.4400 58.2000 58.2500 11,444,100
26 · 8-K Next filing day · accepted 09 Jul, 21:03 ET 8-K ↗ 25 · 8-K After market open · 14:55 ET 8-K ↗
67.7800 70.3500 64.1000 64.2700 20,447,600
85.5600 86.7400 83.9200 84.4600 2,280,800
84.4200 86.6700 82.9500 86.3300 2,646,700
82.1100 84.0100 81.1900 83.1800 1,847,400
Weekend
Weekend
No trading
79.5300 81.9900 79.1100 81.8000 2,301,700
79.1300 79.4800 77.9500 79.1900 1,442,400
81.1700 81.2400 79.2100 79.2900 2,380,300
81.0000 82.5300 79.9500 80.6900 2,806,600
Weekend
Weekend
78.8000 82.6300 78.8000 81.1800 3,828,200
76.6900 79.5500 76.2500 78.3400 2,583,200
24 · 8-K After market open · 15:48 ET 8-K ↗
76.4000 79.0000 76.0400 76.5200 2,485,700
75.8900 77.3100 75.7700 75.9900 1,405,400
74.8500 76.5600 74.1200 75.8900 1,956,100
Weekend
Weekend
No trading
75.0000 75.6600 73.5000 74.1200 2,984,400
73.0900 75.1200 72.5500 74.3100 1,788,200
73.9300 73.9600 72.3000 73.0900 1,801,400
73.4900 74.2700 72.8800 73.9600 1,506,300
Weekend
Weekend
23 · 8-K After market open · 14:20 ET 8-K ↗
73.8200 74.3500 72.5700 73.2800 1,964,900
73.3400 74.4800 72.7600 73.8200 2,234,400
74.4300 75.8500 72.8300 73.3200 1,595,700
74.7700 75.7900 73.5300 74.5800 1,568,700
22 · 8-K After market open · 12:49 ET 8-K ↗
74.3300 74.4300 73.1400 73.5400 1,620,700
Weekend
Weekend
75.2400 75.9600 73.8100 74.4800 1,982,000
74.0100 75.8800 73.8200 75.1300 1,240,800
72.6800 74.1200 72.0200 73.8200 1,303,900
74.8500 75.2300 72.5600 72.9700 2,086,200
75.6700 76.1900 74.7000 75.3800 1,467,700
Weekend
Weekend
77.5400 78.1000 76.3900 76.5000 1,675,600
21 · 8-K After market open · 12:41 ET 8-K ↗
76.5800 78.0000 75.3400 77.3300 1,603,000
76.2400 77.4000 76.2300 76.4900 1,341,300
76.0000 76.7400 74.7300 76.0700 1,279,200
No trading
Weekend
Weekend
75.7100 76.8000 75.0000 75.5600 1,579,200
74.7600 76.4800 74.2100 75.7800 2,295,200
74.6700 75.6900 73.9700 75.0600 2,005,300
72.7600 74.1500 72.0000 73.8400 1,519,500
74.5800 74.7900 71.9300 72.5200 2,211,500
Weekend
Weekend
75.8900 75.9300 73.3200 74.2300 2,119,200
79.0000 79.1900 75.3100 75.6800 1,798,300
75.6700 78.0300 75.0800 77.6000 1,360,300
76.0300 77.1300 75.3800 75.8300 1,408,900
76.0300 77.0100 74.8500 75.3800 1,533,700
Weekend
Weekend
76.4500 77.4000 75.2400 75.7100 1,656,200
76.5600 76.5600 74.8700 76.0200 1,885,700
75.6200 77.4200 75.2900 76.8500 1,799,900
75.8400 76.9600 74.8200 75.2500 850,200
75.2800 76.0000 74.4700 75.4500 1,689,400
Weekend
Weekend
74.8600 76.1700 72.9400 75.2800 1,821,500
74.9100 77.7600 73.8100 74.7600 2,430,300
19 · 10-Q After market open · 14:33 ET IONIS PHARMACEUTICALS, INC. 10-Q 03-31-2026 ↗
72.0600 74.9600 71.3000 74.8300 3,675,200
20 · 8-K Pre-market · 07:00 ET 8-K ↗
72.7100 73.1000 71.1800 71.7800 2,396,300
74.0400 75.1000 72.2100 72.2300 2,311,600
Weekend
Weekend
74.0900 74.5100 72.3300 73.2700 1,817,400
18 · DEFA14A After-hours · 16:22 ET DEFA14A ↗ 17 · DEF 14A After-hours · 16:21 ET DEF 14A ↗
74.9600 76.0600 73.2300 74.0900 1,377,400
75.2200 75.4400 74.0000 74.8300 2,024,000
75.8700 75.9600 73.8000 74.7800 1,818,800
16 · 8-K Pre-market · 07:00 ET 8-K ↗
75.5000 75.6200 74.5800 74.8700 1,106,800
Weekend
Weekend
75.6600 76.3300 74.9500 75.7100 1,719,400
76.4200 76.5300 73.9100 75.2600 1,873,900
77.1000 77.1800 75.7700 76.8200 1,288,400
74.8800 77.3800 74.8800 76.7600 1,595,300
75.1700 77.1700 74.5600 74.9500 1,650,900
Weekend
Weekend
77.0200 77.1500 74.5300 75.1700 1,581,600
74.9800 76.9700 74.6200 76.4300 1,201,000
76.0700 76.4800 74.3000 74.9800 1,266,700
74.0500 74.2700 72.4200 73.8900 1,118,300
74.5400 75.4800 73.5600 74.3300 1,440,900
Weekend
Weekend
No trading
73.7400 75.1300 73.3500 74.7900 1,791,600
75.7000 76.4800 74.7900 75.1300 1,665,000
73.6400 75.9200 73.4500 75.0900 1,852,300
73.1200 73.2100 71.4800 72.5200 2,045,500
Weekend
Weekend
74.0000 74.0500 71.8700 72.1500 1,948,400
72.2500 75.6300 70.5000 74.2400 3,884,000
70.6800 73.6100 70.6800 72.7000 2,994,300
70.2700 70.6400 68.9000 69.6800 1,844,400
72.2500 73.1500 70.6700 70.7900 2,198,100
Weekend
Weekend
71.5100 72.5900 70.5000 70.9900 2,920,600
71.4000 71.9400 70.5100 71.3200 2,247,900
71.8400 72.3000 70.9200 71.6700 2,180,300
72.3500 73.3000 71.9200 72.3300 1,985,000
71.5800 72.8800 71.2900 72.3400 3,231,500
Weekend
Weekend
73.2100 74.1600 70.4200 71.1900 1,972,100
74.3000 74.3000 72.0100 72.3400 2,461,800
75.1500 76.0000 74.5400 74.7900 1,895,400
75.3600 77.0300 74.5100 75.6600 2,785,700
73.5000 75.6300 73.4500 75.3600 3,215,200
15 · 8-K Pre-market · 07:00 ET 8-K ↗
Weekend
Weekend
73.9700 75.1600 73.1500 74.0400 1,904,100
78.1600 79.0400 74.2700 75.1600 2,969,700
79.1600 80.0700 77.6700 79.4500 2,503,100
80.4200 81.4000 78.5000 78.6600 2,045,100
79.2700 82.7500 79.2700 81.9600 3,098,400
Weekend
Weekend
80.5900 82.1000 80.0600 81.1500 2,773,700
14 · 10-K After-hours · 16:25 ET IONIS PHARMACEUTICALS, INC. 10-K 12-31-2025 ↗
80.3200 82.4400 78.9200 80.6000 3,330,000
81.7500 85.1200 80.4700 80.9300 3,188,700
13 · 8-K Pre-market · 07:00 ET 8-K ↗
84.6600 85.4700 83.4500 85.4500 2,384,800
82.7100 84.9600 82.7100 84.6000 1,724,200
Weekend
Weekend
82.8500 83.6300 81.6400 83.1500 2,832,500
81.5000 83.3400 80.3900 83.1500 2,024,000
81.2600 83.0600 80.9800 82.2200 1,949,800
80.3000 82.5300 80.2300 81.3600 1,889,500
No trading
Weekend
Weekend
81.1800 82.5600 79.7800 80.6000 1,931,200
84.2000 84.9100 81.2000 81.7800 1,734,700
84.1900 84.9600 82.0000 84.3500 1,104,200
84.4900 84.8100 83.5700 84.2900 1,382,700
86.1300 86.4900 84.6100 84.7900 1,738,100
Weekend
Weekend
84.8500 86.5900 84.1800 86.5000 1,996,500
84.5100 86.7400 82.8900 83.4800 2,677,700
85.7200 85.9500 82.5500 84.9900 3,009,900
83.0000 85.4500 83.0000 84.5900 1,461,100
82.5400 83.3500 81.9000 83.0700 1,788,900
Weekend
Weekend
83.4800 83.7000 82.2100 82.6700 2,518,400
82.3800 84.3000 81.9000 83.8800 1,646,700
81.9200 82.6300 81.6300 81.9200 1,732,400
81.0100 82.5200 81.0100 82.1400 2,338,600
79.4900 81.2800 79.2400 81.0000 1,700,600
Weekend
Weekend
81.7100 82.2000 79.1100 80.2900 2,128,900
79.6200 82.1900 78.8900 81.7900 3,695,400
77.0900 79.5400 77.0100 79.4400 3,298,700
75.0300 77.9900 74.2000 77.5300 4,894,300
No trading
Weekend
Weekend
77.1500 78.0000 74.4900 76.3300 3,000,600
79.2500 79.7500 77.1500 77.2100 1,408,900
79.0400 79.5700 77.6900 78.8700 2,121,500
82.2400 82.5700 78.6100 79.4800 1,885,200
80.5000 82.2100 78.8800 81.6600 1,570,500
12 · 8-K Pre-market · 07:00 ET 8-K ↗
Weekend
Weekend
82.1700 83.2300 79.3000 80.3000 2,668,600
83.1700 83.7900 79.9500 81.5400 2,051,500
82.5000 86.1500 82.4000 83.1700 3,889,400
11 · 8-K Pre-market · 06:02 ET 8-K ↗
78.8900 81.5400 78.0000 81.4900 2,651,700
79.1800 79.4200 76.0800 78.5300 1,448,700
Weekend
Weekend
79.8800 80.2100 78.0200 79.6700 1,400,400
No trading
78.7800 79.8400 78.6300 79.1100 1,096,900
79.5000 79.9900 78.5200 78.9700 1,146,100
79.7300 80.0400 78.7400 79.9800 1,077,900
Weekend
Weekend
80.1500 80.4200 79.1800 79.9300 725,300
No trading
80.3300 81.0200 80.3300 80.6500 480,200
80.6100 81.8400 79.6300 80.3300 1,229,900
79.2600 82.0900 79.0900 81.3400 2,257,800
Weekend
Weekend
77.8000 79.8300 77.6300 79.5700 3,557,500
77.3900 78.1600 76.7000 77.6300 1,765,600
78.7700 79.4900 77.0700 77.0800 2,145,800
79.4100 79.5600 77.1600 78.3700 1,959,700
80.3500 81.0000 79.3100 79.7600 1,977,600
Weekend
Weekend
79.1900 80.9200 78.5100 80.8200 1,468,900
78.6300 79.8600 78.0500 79.1400 2,052,200
79.3800 79.7100 77.7900 78.6300 2,659,300
80.5500 81.2300 78.3200 78.8600 1,866,200
82.1200 82.8600 81.1800 81.5100 1,553,600
Weekend
Weekend
82.1900 82.4400 80.6400 81.6800 1,715,000
81.9000 83.6100 81.4500 81.8100 2,317,800
81.7000 83.0900 80.9800 81.8400 2,531,200
82.3800 82.6900 80.0000 81.3100 2,454,600
82.0300 82.2700 80.1100 81.9900 1,865,400
Weekend
Weekend
82.5900 82.9500 81.6700 82.7300 852,900
No trading
81.1500 82.9100 80.7500 82.7000 2,955,400
78.5200 81.2000 78.3300 80.9300 2,543,000
76.3400 78.7900 76.1600 78.5200 3,217,000
Weekend
Weekend
73.0000 76.3100 73.0000 76.0900 2,075,900
74.1700 75.4000 72.5000 73.1200 3,208,800
74.5500 75.0000 71.8300 74.0000 3,620,800
72.8100 74.5200 71.9900 74.5000 2,056,700
10 · 8-K After-hours · 16:06 ET 8-K ↗
70.7000 74.4200 70.7000 73.2600 3,504,600
Weekend
Weekend
69.6600 72.5400 68.9000 71.5500 3,372,300
72.5600 73.0500 68.2200 69.8400 11,502,700
71.1900 74.5000 70.4000 72.6700 5,067,900
69.3200 72.7900 68.5500 72.4500 2,268,600
70.0500 71.4900 66.6600 69.5400 4,399,700
9 · 8-K Pre-market · 06:04 ET 8-K ↗
Weekend
Weekend
73.5800 75.0000 72.3600 73.5500 2,332,300
74.5800 76.7800 73.9100 74.1000 2,424,200
72.1400 75.0800 71.4800 74.6800 2,259,100
72.4000 74.2100 72.4000 72.8800 1,726,300
8 · 8-K/A After-hours · 17:17 ET 8-K/A ↗
74.7700 75.2500 71.9500 73.6500 2,576,000
Weekend
Weekend
74.5000 75.4900 74.0200 74.3000 2,395,600
71.9100 74.7000 71.6600 74.1700 2,177,600
6 · 10-Q After-hours · 16:43 ET IONIS PHARMACEUTICALS, INC. 10-Q 9-30-2025 ↗
72.3700 74.0500 71.1400 71.8800 2,164,200
7 · 8-K Pre-market · 07:06 ET 8-K ↗
72.9900 74.0400 72.5000 73.5700 2,559,600
72.0300 73.2700 71.4600 72.9900 1,842,500
Weekend
Weekend
72.3900 72.4400 70.2200 70.8600 1,990,300
71.6900 72.4400 71.0500 71.5000 1,605,800
71.2300 71.9800 70.6000 71.5000 1,508,400
72.9400 73.2000 70.4700 71.6400 2,529,900
73.5500 73.6900 72.3000 73.5500 1,395,600
Weekend
Weekend
72.9600 74.0200 72.3200 73.0900 1,310,800
73.1200 74.4200 72.0700 73.0700 1,739,500
71.4200 73.9200 71.2400 72.3900 3,234,200
70.5900 72.1500 70.0800 71.3700 1,264,800
70.1600 71.5000 69.8400 70.5900 2,624,000
Weekend
Weekend
70.0000 70.4900 69.4000 69.9700 1,697,200
70.2100 70.8900 69.6800 70.2700 1,958,900
70.4900 71.8700 69.6000 69.9600 3,102,600
69.0000 69.7700 67.9500 68.9400 1,903,600
69.1500 70.1400 68.8500 69.0200 1,824,000
Weekend
Weekend
68.3300 69.2500 67.6400 69.1500 2,579,800
66.2100 68.4100 65.9700 68.4000 2,999,300
65.3500 66.2500 64.9300 65.8000 2,222,100
63.9000 65.5500 63.6600 65.4200 2,140,300
63.7600 64.7000 63.3600 64.1500 1,454,500
Weekend
Weekend
64.0300 64.4900 63.0500 64.0900 1,522,300
63.4700 64.0700 62.7200 62.9700 2,314,500
62.6500 63.9900 62.1900 63.9400 1,592,500
61.5100 63.1300 61.0300 62.5700 2,066,200
63.1800 63.1800 61.0500 61.3600 2,682,800
5 · 8-K Pre-market · 07:05 ET 8-K ↗
Weekend
Weekend
61.9100 62.0000 60.4100 61.0100 3,305,100
62.1500 62.5200 61.2100 61.7400 1,644,700
61.4400 62.1000 60.8600 61.1700 1,636,400
61.0300 61.5400 60.6700 61.3200 1,787,600
62.9400 63.4200 60.6400 61.1000 2,151,200
Weekend
Weekend
63.8500 64.6100 63.0700 63.1600 1,471,400
63.6500 64.2100 62.7900 64.0400 1,816,700
64.3000 64.7200 62.8400 64.0000 2,258,100
61.1500 64.7100 60.9900 64.4000 4,303,700
61.2000 61.2600 59.3600 61.0000 2,774,500
Weekend
Weekend
59.4300 62.0100 59.2200 61.2300 3,197,700
59.3400 60.7500 58.8500 59.3500 3,906,300
58.9800 62.0800 58.5600 60.4900 10,338,200
49.1400 57.9200 49.1300 57.4900 16,461,700
4 · 8-K Pre-market · 07:05 ET 8-K ↗
No trading
Weekend
Weekend
42.5000 42.7500 42.1300 42.6400 1,152,700
42.7500 43.3500 42.6000 42.6200 1,097,700
42.1700 43.0900 41.9500 42.7500 1,949,900
41.7100 42.5700 41.7100 42.1700 2,596,500
42.8200 43.0600 41.7900 41.8200 1,572,000
Weekend
Weekend
43.6800 43.7200 42.0900 42.6900 1,859,900
3 · 8-K After market open · 14:01 ET 8-K ↗
42.6000 44.9900 42.4700 43.2400 1,876,600
42.4500 43.2600 41.9600 42.8100 2,286,000
43.4900 43.9000 42.2700 42.4800 2,003,800
43.9900 44.2900 43.4100 43.4300 1,500,800
Weekend
Weekend
42.8600 43.8200 42.8000 43.7800 1,602,700
43.0000 43.4000 42.4400 42.8500 1,582,300
41.5400 43.2200 41.5400 43.1000 3,020,900
40.8700 41.4200 40.3700 41.4100 1,488,500
41.5100 41.9300 40.7900 40.8400 1,799,800
Weekend
Weekend
40.8900 41.7600 40.8600 41.6400 1,739,200
40.3400 41.1300 40.0300 41.0500 2,741,700
42.6500 42.8700 40.6600 40.6900 2,469,800
43.1500 43.5200 42.5100 43.0500 2,818,400
43.1500 43.7400 42.2600 43.4500 2,311,200
Weekend
Weekend
42.6500 43.4000 42.2800 43.0300 2,327,900
44.3700 44.9800 42.3300 42.9800 3,544,000
2 · 8-K After market open · 11:16 ET 8-K ↗ 1 · 10-Q After market open · 15:56 ET IONIS PHARMACEUTICALS, INC. 10-Q 6-30-2025 ↗
44.9700 45.6600 42.9500 43.3700 4,183,400
41.5900 41.6500 40.8100 41.4800 1,503,900
42.4300 42.4900 41.1500 41.1700 1,640,700
Weekend
Weekend

Announcement Events

Each title opens the filing on the SEC website. Registered users can summarise the filing and up to seven relevant exhibits linked within the same SEC submission.

26 8-K 8-K (opens SEC filing in a new tab) Next filing day · accepted 09 Jul, 21:03 ET Summarise
25 8-K 8-K (opens SEC filing in a new tab) After market open · 14:55 ET Summarise
24 8-K 8-K (opens SEC filing in a new tab) After market open · 15:48 ET Summarise
23 8-K 8-K (opens SEC filing in a new tab) After market open · 14:20 ET Summarise
22 8-K 8-K (opens SEC filing in a new tab) After market open · 12:49 ET Summarise
21 8-K 8-K (opens SEC filing in a new tab) After market open · 12:41 ET Summarise
20 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
19 10-Q IONIS PHARMACEUTICALS, INC. 10-Q 03-31-2026 (opens SEC filing in a new tab) After market open · 14:33 ET Summarise
18 DEFA14A DEFA14A (opens SEC filing in a new tab) After-hours · 16:22 ET Summarise
17 DEF 14A DEF 14A (opens SEC filing in a new tab) After-hours · 16:21 ET Summarise
16 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
15 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
14 10-K IONIS PHARMACEUTICALS, INC. 10-K 12-31-2025 (opens SEC filing in a new tab) After-hours · 16:25 ET Summarise
13 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
12 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:00 ET Summarise
11 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:02 ET Summarise
10 8-K 8-K (opens SEC filing in a new tab) After-hours · 16:06 ET Summarise
9 8-K 8-K (opens SEC filing in a new tab) Pre-market · 06:04 ET Summarise
8 8-K/A 8-K/A (opens SEC filing in a new tab) After-hours · 17:17 ET Summarise
7 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:06 ET Summarise
6 10-Q IONIS PHARMACEUTICALS, INC. 10-Q 9-30-2025 (opens SEC filing in a new tab) After-hours · 16:43 ET Summarise
5 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
4 8-K 8-K (opens SEC filing in a new tab) Pre-market · 07:05 ET Summarise
3 8-K 8-K (opens SEC filing in a new tab) After market open · 14:01 ET Summarise
2 8-K 8-K (opens SEC filing in a new tab) After market open · 11:16 ET Summarise
1 10-Q IONIS PHARMACEUTICALS, INC. 10-Q 6-30-2025 (opens SEC filing in a new tab) After market open · 15:56 ET Summarise