🔴 Marker Therapeutics is trading 5.65% down today amid biotech-sector weakness

Marker Therapeutics is trading 5.65% down now at $1.17 as biotechnology stocks weakened during the September 24, 2026 session.

• The XBI sector benchmark was down 2.04%.
• Higher Treasury yields, rising crude prices, and inflation concerns pressured growth-oriented biotech shares.
• The September 22 manufacturing update for MT-601 remains the latest company-specific news, but available coverage does not directly connect it to the decline.