43.81
price down icon0.27%   -0.12
pre-market  Pre-market:  44.29   0.48   +1.10%
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Ionis Pharmaceuticals Inc Stock (IONS) Price History

The historical daily chart and data for Ionis Pharmaceuticals Inc stock (IONS), show that the latest closing stock price as of September 24, 2026, is $43.81.
  • Ionis Pharmaceuticals Inc all-time high stock price is $86.74, occurred on February 05, 2026.
  • The lowest Ionis Pharmaceuticals Inc stock price recorded was $19.59 on May 27, 2016. Since then, Ionis Pharmaceuticals Inc's stock price has risen over 123.63% to $43.81 now.
  • The 52-week high stock price for IONS is $86.74, representing a 97.99% increase from the current share price, occurred on February 05, 2026.
  • The 52-week low stock price for IONS is $43.01, indicating a -1.83% decrease from the current share price, occurred on September 23, 2026.
  • The closing price of Ionis Pharmaceuticals Inc (IONS) stock in the beginning of 2025 was $32.60. The stock closed the year at $37.77, a gain of over 15.86% for the year.
The table below shows more information about IONS historical price data:
Date High Low High - Low Volume % Change
Sep 24, 2026 $44.60 $43.25 $1.35 5,493,334.0 -0.27%
Sep 23, 2026 $46.41 $43.01 $3.40 3,523,135.0 -3.98%
Sep 22, 2026 $46.13 $44.44 $1.69 4,385,885.0 +1.89%
Sep 21, 2026 $45.25 $44.20 $1.05 4,337,772.0 +1.04%
Sep 18, 2026 $46.75 $44.27 $2.48 7,315,988.0 -4.94%
Sep 17, 2026 $47.42 $45.75 $1.67 4,018,990.0 +4.26%
Sep 16, 2026 $47.59 $44.66 $2.93 7,626,868.0 -5.10%
Sep 15, 2026 $51.37 $46.72 $4.65 6,786,114.0 -8.15%
Sep 14, 2026 $55.50 $51.31 $4.19 5,789,555.0 -5.11%
Sep 11, 2026 $56.16 $54.16 $2.00 2,167,850.0 -2.59%
Sep 10, 2026 $55.77 $54.91 $0.86 2,993,331.0 -0.66%
Sep 09, 2026 $56.96 $55.70 $1.26 2,998,627.0 -1.22%
Sep 08, 2026 $57.43 $52.15 $5.28 9,097,729.0 -2.38%
Sep 04, 2026 $58.96 $57.78 $1.18 2,307,430.0 -0.07%
Sep 03, 2026 $60.42 $57.47 $2.95 4,259,791.0 -5.22%
Sep 02, 2026 $61.77 $59.77 $2.00 1,844,084.0 +2.42%
Sep 01, 2026 $60.99 $59.78 $1.21 1,872,462.0 -0.80%
Aug 31, 2026 $61.06 $59.70 $1.36 2,017,090.0 -1.13%
Aug 28, 2026 $61.69 $60.35 $1.34 1,850,625.0 -2.21%
Aug 27, 2026 $63.48 $62.34 $1.14 1,625,118.0 -1.47%
Aug 26, 2026 $63.55 $62.44 $1.11 2,145,905.0 -0.33%

Ionis Pharmaceuticals Inc Stock (IONS) Year by Year Price History

In this detailed analysis, we present a comprehensive overview of the price movements of Ionis Pharmaceuticals Inc stock over the years. By exploring the year-by-year data, investors can gain valuable insights into the historical performance and volatility of IONS shares. From significant milestones and fluctuations to notable trends, this in-depth examination of Ionis Pharmaceuticals Inc stock price history provides a foundation for understanding how the company's stock has evolved over time.

Ionis Pharmaceuticals Inc Stock (IONS) Price History 2026

Month High Low High - Low Volume % Change
Sep, 2026 $61.77 $43.01 $18.76 82,312,279.0 -27.42%
Aug, 2026 $64.19 $52.16 $12.02 46,905,413.0 +16.59%
Jul, 2026 $86.74 $50.01 $36.73 96,927,461.0 -34.71%
Jun, 2026 $82.63 $72.02 $10.61 42,213,147.0 +3.65%
May, 2026 $79.19 $71.93 $7.26 33,385,894.0 +2.33%
Apr, 2026 $77.76 $71.17 $6.59 37,016,312.0 -0.44%
Mar, 2026 $82.75 $68.90 $13.85 54,262,022.0 -7.47%
Feb, 2026 $86.74 $78.92 $7.82 40,714,094.0 -1.84%
Jan, 2026 $86.15 $74.20 $11.95 48,038,785.0 +4.50%

Ionis Pharmaceuticals Inc Stock (IONS) Price History 2025

Month High Low High - Low Volume % Change
Dec, 2025 $83.61 $76.69 $6.92 38,054,517.0 -4.54%
Nov, 2025 $82.95 $66.66 $16.29 62,149,286.0 +11.35%
Oct, 2025 $75.49 $64.92 $10.56 48,024,340.0 +13.57%
Sep, 2025 $65.55 $49.13 $16.42 70,675,975.0 +53.44%
Aug, 2025 $44.99 $40.03 $4.96 41,497,020.0 -0.80%
Jul, 2025 $45.66 $39.72 $5.94 43,205,225.0 +8.78%
Jun, 2025 $40.61 $33.43 $7.18 34,212,913.0 +17.91%
May, 2025 $34.71 $30.01 $4.70 32,407,634.0 +9.12%
Apr, 2025 $31.82 $23.95 $7.87 40,409,632.0 +1.79%
Mar, 2025 $35.00 $29.61 $5.39 31,477,708.0 -9.10%
Feb, 2025 $34.74 $30.23 $4.51 31,291,435.0 +4.04%
Jan, 2025 $35.48 $31.40 $4.08 32,012,654.0 -8.75%

Ionis Pharmaceuticals Inc Stock (IONS) Price History 2024

Month High Low High - Low Volume % Change
Dec, 2024 $40.10 $34.85 $5.25 30,301,813.0 -2.27%
Nov, 2024 $40.06 $33.33 $6.73 27,637,526.0 -6.93%
Oct, 2024 $40.58 $37.00 $3.58 29,680,820.0 -4.17%
Sep, 2024 $49.08 $39.48 $9.60 47,312,004.0 -15.98%
Aug, 2024 $51.62 $46.22 $5.40 22,352,562.0 -3.60%
Jul, 2024 $52.34 $44.34 $8.00 28,911,084.0 +3.78%
Jun, 2024 $47.86 $37.92 $9.94 27,918,581.0 +26.86%
May, 2024 $43.76 $35.95 $7.81 27,063,649.0 -8.94%
Apr, 2024 $44.08 $40.38 $3.70 18,580,866.0 -4.82%
Mar, 2024 $46.10 $41.60 $4.50 20,595,545.0 -4.11%
Feb, 2024 $51.98 $43.20 $8.78 26,378,113.0 -12.03%
Jan, 2024 $54.44 $49.82 $4.62 26,752,078.0 +1.58%
$58.29
price up icon 1.11%
$36.13
price down icon 1.87%
$121.55
price up icon 2.71%
$249.59
price up icon 1.25%
ONC ONC
$359.97
price down icon 1.38%
$199.86
price up icon 4.78%
Cap:     |  Volume (24h):