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Cyclerion Therapeutics (CYCN) Stock Chart & Stock Price History

Cyclerion Therapeutics logo
$3.49 +0.13 (+3.87%)
Closing price 09/8/2026
Extended Trading
$3.49 0.00 (0.00%)
As of 09/8/2026 07:42 PM Eastern
Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Massive. Learn more.

Cyclerion Therapeutics Stock Price Performance

The Cyclerion Therapeutics (CYCN) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 81.74%, with a year-to-date return of -60.74%. In the past month, the stock has decreased 87.54%, reflecting recent market activity.

As of the latest close, Cyclerion Therapeutics traded at $3.49 with a market cap of $16.33 million and volume of 435,914 shares. Five years ago, the stock traded at a split-adjusted price of $473.20, representing a 99.26% decrease over that period. At the time, it had a market cap of $146.28 million and a volume of 4,123 shares.

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5 Day
Performance
0.00%
1 Month
Performance
-87.54%
3 Month
Performance
-84.27%
Year-To-Date
Performance
-60.74%
1 Year
Performance
-81.74%
5 Year
Performance
-99.26%

CYCN Stock Chart for Friday, September, 25, 2026

Cyclerion Therapeutics Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
09/24/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/23/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/22/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/21/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/18/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/17/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/16/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/15/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/14/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/11/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/10/2026$3.49$3.49$3.84$2.82435,914 shs$16.33 million
09/09/2026$23.52$3.49
-85.16%
$3.84$2.82435,914 shs$16.33 million
09/08/2026$29.75$23.52
-20.94%
$26.88$19.7462,273 shs$15.73 million
09/07/2026$29.75$29.75$31.71$28.5614,667 shs$19.89 million
09/04/2026$34.72$29.75
-14.31%
$31.71$28.5614,667 shs$19.89 million
09/03/2026$31.64$34.72
+9.73%
$36.33$31.2221,472 shs$23.21 million
09/02/2026$29.19$31.64
+8.39%
$32.41$27.8616,318 shs$21.16 million
09/01/2026$25.76$29.19
+13.32%
$29.54$25.6217,664 shs$19.52 million
08/31/2026$26.53$25.76
-2.90%
$27.23$24.8523,648 shs$17.22 million
08/28/2026$27.93$26.53
-5.01%
$29.89$26.258,573 shs$17.74 million
08/27/2026$29.05$27.93
-3.86%
$29.82$27.5813,868 shs$18.68 million
08/26/2026$28.00$29.05
+3.75%
$30.80$27.7913,038 shs$19.42 million
08/25/2026$27.51$28.00
+1.78%
$29.26$27.5111,127 shs$18.72 million
08/24/2026$27.23$27.51
+1.03%
$30.80$27.3012,787 shs$18.40 million

This page (NASDAQ:CYCN) was last updated on 9/8/2026 by MarketBeat.com Staff.
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