A small-cap reverse merger is giving birth to one of the better-funded Alzheimer’s plays to hit the public markets in recent memory. Cyclerion Therapeutics (Nasdaq: CYCN) and privately-held Korsana Biosciences announced a definitive all-stock merger agreement that will effectively hand the Nasdaq listing to Korsana, with the combined company rebranding as Korsana Biosciences and trading under the new ticker “KRSA.”