0001958777 2026-07-22 2026-07-22 false 0001958777 8-K 2026-07-22 FibroBiologics, Inc. DE 001-41934 86-3329066 9350 Kirby Drive, Suite 300 Houston TX 77054 281 671-5150 false false false false Common Stock, $0.00001 par value FBLG NASDAQ true false