Daily trading records
Ionis Pharmaceuticals Stock Price on August 19, 2026
Direct answer
Ionis Pharmaceuticals closed at $60.80 on August 19, 2026.
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Review Ionis Pharmaceuticals's price trend and period performance.
The chart connects verified session closes from May 22, 2026 through August 19, 2026.
Period performance is calculated from verified trading sessions.
5-session performance
+7.55%
From the August 12, 2026 close of $56.53 to $60.80 on August 19, 2026.
20-session performance
+12.57%
From the July 22, 2026 close of $54.01 to $60.80 on August 19, 2026.
60-session performance
-19.53%
From the May 22, 2026 close of $75.56 to $60.80 on August 19, 2026.
Verified data
- Open
- $60.11
- High
- $61.355
- Low
- $59.61
- Close
- $60.80
- Volume
- 3,137,561
- Prior-close change
- +$1.18 (+1.98%)
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Read the frequently asked questions.
What was Ionis Pharmaceuticals's closing price on August 19, 2026?
Ionis Pharmaceuticals closed at $60.80 on August 19, 2026.
What were Ionis Pharmaceuticals's open, high and low on August 19, 2026?
The open was $60.11, the high was $61.355 and the low was $59.61.
How much did Ionis Pharmaceuticals change from the prior close on August 19, 2026?
The change from the prior close was +$1.18 (+1.98%).
What was Ionis Pharmaceuticals's volume on August 19, 2026?
Trading volume was 3,137,561 shares.
What is the source for Ionis Pharmaceuticals's daily prices?
Daily aggregate prices are provided by Polygon.