Regeneron Pharmaceuticals, Inc. (REGN)
NASDAQ: REGN · Real-Time Price · USD
731.77
-12.67 (-1.70%)
At close: Apr 28, 2026, 4:00 PM EDT
731.38
-0.39 (-0.05%)
After-hours: Apr 28, 2026, 5:22 PM EDT
Source: Business metrics provided by Main Street Data and sourced from official company press releases and documents.