X0508 4 2026-03-02 0 0001958777 FibroBiologics, Inc. FBLG 0001443533 Davis Jason C/O FIBROBIOLOGICS, INC. 455 E. MEDICAL CENTER BLVD., SUITE 300 HOUSTON, TX 77598 0 1 0 0 Chief Financial Officer 0 Common Stock 2026-03-02 4 P 0 70000 0.4139 A 70000 D The price reported in Column 4 is a weighted average price. These shares were purchased in multiple transactions ranging from $0.3968 to $0.4200 on March 2, 2026. 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, by Power of Attorney 2026-03-03