0001776111 2026-03-12 2026-03-12 0001776111 false 8-K 2026-03-12 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