Quoc Le-Nguyen's Stock Transactions in 89bio, Inc.

On August 1, 2025, Quoc Le-Nguyen, the Chief Technical Operations Officer of 89bio, Inc., reported two transactions involving the company's common stock. In the first transaction, Le-Nguyen disposed of 7,680 shares directly owned at a price of $9.16 per share, resulting in a total of 301,684 shares owned following the transaction. The second transaction involved the disposal of 522 shares indirectly owned by Le-Nguyen's spouse at the same price per share, leaving 13,694 shares owned after the transaction. Both transactions were related to the withholding of shares from the vesting of restricted stock units to cover estimated tax withholding obligations.