0001638287 2026-09-09 2026-09-09 0001638287 false 8-K 2026-09-09 METAVIA INC. DE 001-37809 47-2389984 545 Concord Avenue Suite 210 Cambridge MA 02138 857 702-9600 false false false false Common Stock, par value $0.001 per share MTVA NASDAQ false