X0508 4 2025-12-11 0 0001958777 FibroBiologics, Inc. FBLG 0002013617 GARCIA RUBEN A C/O FIBROBIOLOGICS, INC. 455 E. MEDICAL CENTER BLVD., SUITE 300 HOUSTON, TX 77598 0 1 0 0 General Counsel 0 Common Stock 2025-12-11 4 P 0 140000 0.3400 A 140000 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3333 to $0.3504 on December 11, 2025. The reporting person will provide upon request to the SEC, the Issuer, or security holder of the Issuer, full information regarding the number of shares purchased at each separate price. /s/ Ruben A. Garcia 2025-12-12