| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| GARCIA RUBEN A | General Counsel | C/O FIBROBIOLOGICS, INC., 455 E. MEDICAL CENTER BLVD., SUITE 300, HOUSTON, | /s/ Ruben A. Garcia | 12 Dec 2025 | 0002013617 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FBLG | Common Stock | Purchase | $47,600 | +140,000 | $0.3400 | 140,000 | 11 Dec 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | 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. |