Insmed (INSM) Stock News and Forecasts on Dec. 20, 2025: Brinsupri Trial Miss, Truist Upgrade, and Updated Price Targets
December 20, 2025 — Insmed Incorporated (NASDAQ: INSM) is ending the week in “re-pricing mode” after a mid-stage clinical setback jolted investor expectations, sparked sharp volatility, and triggered a round of analyst price-target revisions. By Friday’s close (the last U.S.