INSM PDUFA decision: a positive outcome, +8.1%

On August 12, 2025, Insmed Incorporated reached its PDUFA decision. The result was a positive outcome, and the stock moved +8.1% in the window around the event. It had already run +11.6% in the 30 days into the catalyst — the kind of pre-event run-up that often precedes binary readouts.