🔴 Korro Bio is trading 6.25% down in after-hours trading after biotech ETFs reversed sharply

Korro Bio is trading 6.25% down at $12.15 after a broad biotech-sector pullback.

• It fell 7.10% during the August 20, 2026 regular session; no company-specific announcement, earnings surprise, or regulatory event was identified.
• Biotech ETFs reversed sharply after Wednesday’s Moderna-fueled rally, while broader risk sentiment weakened amid a major Nasdaq decline.
• The after-hours decline extends the sector pullback, not a confirmed Korro Bio-specific catalyst. Confidence is medium because direct company-specific reporting is limited.