0001776111 2026-08-27 2026-08-27 false 0001776111 8-K 2026-08-27 MBX Biosciences, Inc. DE 001-42272 84-1882872 11711 N. Meridian Street Suite 300 Carmel IN 46032 (317) 659-0200 Not Applicable false false false false Common Stock, $0.0001 par value per share MBX NASDAQ true false