| Name | Relationship | Address | Signature | Signature date | CIK |
|---|---|---|---|---|---|
| Le-Nguyen Quoc | Chief Technical Operations Officer | C/O 89BIO, INC., 655 MONTGOMERY STREET, SUITE 1500, SAN FRANCISCO | /s/ Ryan A. Murr, as attorney-in-fact for Quoc Le-Nguyen | 17 Jul 2025 | 0001792062 |
| Type | Sym | Class | Transaction | Value $ | Shares | Change % | * Price $ | Shares After | Date | Ownership | Footnotes |
|---|---|---|---|---|---|---|---|---|---|---|---|
| transaction | ETNB | Common Stock | Sale | $115,280 | -10,461 | -3.3% | $11.02 | 309,364 | 15 Jul 2025 | Direct | F1, F2 |
| holding | ETNB | Common Stock | 14,216 | 15 Jul 2025 | By Spouse |
Buy Plan / Sale Plan: These are also open market purchases/sales of shares, but in this case the transaction is part of a trading plan. Rule 10b5-1 allows insiders to setup a trading plan to buy/sell stocks over a certain period of time. Since the purchases/sales are predetermined, this protects the insiders from violating insider trading law.
Transaction was made pursuant to a contract, instruction or written plan for the purchase or sale of equity securities of the issuer that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c).
| Id | Content |
|---|---|
| F1 | This transaction was executed pursuant to a Rule 10b5-1 trading plan adopted on July 1, 2024. |
| F2 | The price reported represents the weighted average sale price per share. The shares were sold in multiple transactions at prices ranging from $10.855 to $11.17. Upon request by the staff of the U.S. Securities and Exchange Commission, the Issuer, or a security holder of the Issuer, the Reporting Person will provide full information regarding the number of shares sold at each separate price. |
Chief Technical Operations Officer