| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Mansbach Harry H | Chief Medical Officer | C/O 89BIO, INC., 655 MONTGOMERY STREET, SUITE 1500, SAN FRANCISCO | /s/ Ryan A. Murr, as attorney-in-fact for Harry H. Mansbach | 05 Aug 2025 | 0001300615 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ETNB | Common Stock | Tax liability | $70,349 | -7,680 | -2.5% | $9.16 | 302,656 | 01 Aug 2025 | Direct | F1 |
| Id | Content |
|---|---|
| F1 | These shares were withheld from the vesting of restricted stock units to cover the estimated tax withholding obligation. |