Ionis Pharmaceuticals, Inc. (IONS) Stock Price History
Historical prices from 2011 to 2026
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Historical Performance
Short-Term Returns
IONS Stock Price Trajectory (2011–2026)
As of March 2, 2026, Ionis Pharmaceuticals, Inc. (IONS) trades at $81.15, representing a +144.5% return over the past year. The stock has delivered a +8.5% return over five years, reflecting significant long-term value creation.
The stock reached its all-time high of $86.74 on February 5, 2026. From this peak, IONS has corrected -6.4%, currently trading 31% above its 200-day moving average, indicating continued institutional support.
When compared to Healthcare sector peers ALNY (+34.9% 1Y), ARWR (+234.6% 1Y), and CRSP (+36.9% 1Y), IONS has underperformed the peer group average. Compare IONS vs ALNY →
Historical Price Data
Showing 30 of 3,650 records| Date | Open | High | Low | Close | Volume | Change % |
|---|---|---|---|---|---|---|
| 2026-02-27 | 80.59 | 82.10 | 80.06 | 81.15 | 81 | +0.68% |
| 2026-02-26 | 80.32 | 82.44 | 78.92 | 80.60 | 80 | -0.41% |
| 2026-02-25 | 81.75 | 85.11 | 80.47 | 80.93 | 80 | -5.29% |
| 2026-02-24 | 84.38 | 85.47 | 83.45 | 85.45 | 85 | +1.00% |
| 2026-02-23 | 82.89 | 84.96 | 82.71 | 84.60 | 84 | +1.74% |
| 2026-02-20 | 82.85 | 83.63 | 81.64 | 83.15 | 83 | +0.01% |
| 2026-02-19 | 81.50 | 83.33 | 80.39 | 83.14 | 1.99M | +1.13% |
| 2026-02-18 | 81.26 | 83.06 | 80.98 | 82.22 | 1.95M | +0.85% |
| 2026-02-17 | 80.30 | 81.87 | 80.25 | 81.53 | 60K | +1.15% |
| 2026-02-13 | 81.18 | 82.56 | 79.78 | 80.60 | 1.93M | -1.44% |
| 2026-02-12 | 84.20 | 84.91 | 81.20 | 81.78 | 1.70M | -3.05% |
| 2026-02-11 | 84.19 | 84.96 | 82.00 | 84.35 | 1.10M | +0.07% |
| 2026-02-10 | 84.49 | 84.81 | 83.57 | 84.29 | 1.38M | -0.59% |
| 2026-02-09 | 86.13 | 86.49 | 84.61 | 84.79 | 1.74M | -1.98% |
| 2026-02-06 | 84.85 | 86.59 | 84.18 | 86.50 | 2.00M | +3.62% |
| 2026-02-05 | 84.51 | 86.74 | 82.89 | 83.48 | 2.68M | -1.78% |
| 2026-02-04 | 85.72 | 85.95 | 82.55 | 84.99 | 3.01M | +0.47% |
| 2026-02-03 | 83.00 | 85.45 | 83.00 | 84.59 | 1.46M | +1.83% |
| 2026-02-02 | 82.54 | 83.35 | 81.90 | 83.07 | 1.79M | +0.48% |
| 2026-01-30 | 83.48 | 83.70 | 82.21 | 82.67 | 2.52M | -1.44% |
| 2026-01-29 | 82.38 | 84.30 | 81.90 | 83.88 | 1.65M | +2.39% |
| 2026-01-28 | 81.92 | 82.63 | 81.63 | 81.92 | 1.73M | -0.27% |
| 2026-01-27 | 81.01 | 82.52 | 81.01 | 82.14 | 2.34M | +1.41% |
| 2026-01-26 | 79.49 | 81.28 | 79.24 | 81.00 | 1.70M | +0.89% |
| 2026-01-24 | 81.71 | 82.20 | 79.11 | 80.28 | 2.12M | -0.01% |
| 2026-01-23 | 81.71 | 82.20 | 79.11 | 80.29 | 2.13M | -1.83% |
| 2026-01-22 | 79.62 | 82.19 | 78.89 | 81.79 | 3.70M | +2.96% |
| 2026-01-21 | 77.09 | 79.54 | 77.01 | 79.44 | 3.30M | +2.46% |
| 2026-01-20 | 75.03 | 77.99 | 74.20 | 77.53 | 4.89M | +1.57% |
| 2026-01-16 | 77.15 | 78.00 | 74.49 | 76.33 | 3.00M | -1.14% |
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Start ComparisonFrequently Asked Questions
How has IONS stock performed recently?
IONS returned +144.5% over the past year, beating its 5-year annualized CAGR of +8.5%. The stock trades above its 200-day moving average, confirming the uptrend.
What is IONS's all-time high price?
Ionis Pharmaceuticals, Inc. reached $86.74 on 2026-02-05. The 52-week high is $86.74. Current 1-year return of +144.5% places the stock closer to historical peaks.
Where can I download IONS historical price data?
This page provides IONS daily OHLCV data with 50-day MA, 200-day MA, and RSI indicators. Data spans 2011-2026, downloadable in CSV format.