🔴 Marker Therapeutics is trading 5% down today amid broad biotech-sector weakness

Marker Therapeutics is trading 5.27% lower at $1.00, with broad biotech weakness the clearest available explanation.

• No company-specific news was identified in the October 6, 2026 search.
• XBI was reported down about 2.5% during the session, amid negative sentiment toward clinical-stage biotech companies.
• Marker Therapeutics’ individual trading volume was not verified.