Cyclerion Therapeutics, Inc. (CYCN:NASDAQ) closed at $3.36 on October 14, 2026, down 85.71% on the day. It is trading at its 52-week low of $7.19. Cyclerion Therapeutics, Inc. is part of the Health Care sector (Major Pharmaceuticals).
In 252 trading sessions since October 21, 2025, CYCN closed higher on 93 days (37%). Its best day was March 16, 2026 (+616.90%) and its worst was October 14, 2026 (-85.71%). The stock moved 10% or more in a single session 24 times. It opened at least 5% above the previous day's high 3 times.
Cyclerion Therapeutics Inc is a clinical-stage biopharmaceutical company harnessing the power of soluble guanylate cyclase (sGC) pharmacology to discover, develop and commercialize breakthrough treatments for serious and orphan diseases.Its focus is on enabling the full therapeutic potential of next-generation sGC stimulators.
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Based on end-of-day data. For information only, not investment advice.