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Cyclerion Therapeutics (CYCN) Stock Chart & Stock Price History

Cyclerion Therapeutics logo
$3.99 -0.16 (-3.86%)
Closing price 08/27/2026 04:00 PM Eastern
Extended Trading
$3.98 -0.01 (-0.28%)
As of 08/27/2026 07:24 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 increased 55.25%, with a year-to-date return of 214.17%. In the past month, the stock has increased 14.00%, reflecting recent market activity.

As of the latest close, Cyclerion Therapeutics traded at $3.99 with a market cap of $18.68 million and volume of 97,076 shares. Five years ago, the stock traded at a split-adjusted price of $66.20, representing a 93.97% decrease over that period. At the time, it had a market cap of $143.25 million and a volume of 10,922 shares.

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5 Day
Performance
+2.57%
1 Month
Performance
+14.00%
3 Month
Performance
+25.47%
Year-To-Date
Performance
+214.17%
1 Year
Performance
+55.25%
5 Year
Performance
-93.97%

CYCN Stock Chart for Friday, August, 28, 2026

Cyclerion Therapeutics Stock Price History

DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization
08/27/2026$4.15$3.99
-3.86%
$4.26$3.9497,076 shs$18.68 million
08/26/2026$4.00$4.15
+3.75%
$4.40$3.9791,263 shs$19.42 million
08/25/2026$3.93$4.00
+1.78%
$4.18$3.9377,890 shs$18.72 million
08/24/2026$3.89$3.93
+1.03%
$4.40$3.9089,506 shs$18.40 million
08/21/2026$4.07$3.89
-4.42%
$4.29$3.7865,692 shs$18.21 million
08/20/2026$4.13$4.07
-1.45%
$4.47$4.0186,134 shs$19.05 million
08/19/2026$4.12$4.13
+0.24%
$4.30$4.0512,971 shs$19.33 million
08/18/2026$4.03$4.12
+2.23%
$4.25$3.8714,636 shs$19.29 million
08/17/2026$3.79$4.03
+6.33%
$4.20$3.7615,362 shs$18.86 million
08/14/2026$3.91$3.79
-3.07%
$3.97$3.7324,206 shs$17.74 million
08/13/2026$3.92$3.91
-0.26%
$4.45$3.8182,863 shs$18.30 million
08/12/2026$3.57$3.92
+9.80%
$4.16$3.53102,513 shs$18.35 million
08/11/2026$3.58$3.57
-0.28%
$3.67$3.4010,536 shs$16.71 million
08/10/2026$3.57$3.58
+0.28%
$3.73$3.518,346 shs$16.75 million
08/07/2026$3.56$3.57
+0.28%
$3.71$3.5019,843 shs$16.71 million
08/06/2026$3.55$3.56
+0.28%
$3.70$3.414,509 shs$16.66 million
08/05/2026$3.51$3.55
+1.14%
$3.69$3.4039,993 shs$16.61 million
08/04/2026$3.49$3.51
+0.57%
$3.67$3.436,374 shs$16.43 million
08/03/2026$3.44$3.49
+1.45%
$3.58$3.375,187 shs$16.34 million
07/31/2026$3.50$3.44
-1.71%
$3.60$3.3615,705 shs$16.10 million
07/30/2026$3.50$3.50$3.50$3.473,542 shs$16.38 million
07/29/2026$3.50$3.50$3.60$3.4310,040 shs$16.38 million
07/28/2026$3.50$3.50$3.66$3.3718,507 shs$15.16 million
07/27/2026$3.50$3.50$3.55$3.4115,802 shs$15.16 million

This page (NASDAQ:CYCN) was last updated on 8/27/2026 by MarketBeat.com Staff.
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