Marker Therapeutics is trading 6.96% up at $1.23 after closing at $1.15 on September 25, 2026, with no identified company-specific news explaining the after-hours gain. - Price context shows a sharp reversal after two consecutive lower closes. - The latest identified company announcement was September 22, concerning expanded manufacturing support for its MT-601 program; it was not a new September 25 event. - Broader market conditions were positive, but available evidence does not establish them as the cause of the after-hours move.