| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Wettig Thane | CEO, Director | C/O FIBROGEN, INC., 350 BAY STREET, SUITE 100, #6009, SAN FRANCISCO | /s/ John Alden, Attorney-in-Fact | 09 Dec 2025 | 0001815638 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | FGEN | Common Stock | Tax liability | $2,181 | -259 | -1% | $8.42 | 24,680 | 06 Dec 2025 | Direct | F1 |
| holding | FGEN | Common Stock | 40 | 06 Dec 2025 | By spouse |
| Id | Content |
|---|---|
| F1 | Represents shares withheld by the issuer to satisfy a tax obligation realized by the reporting person upon the vesting of restricted stock units. |