0000950170-25-103380.txt : 20250805 0000950170-25-103380.hdr.sgml : 20250805 20250805201057 ACCESSION NUMBER: 0000950170-25-103380 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20250801 FILED AS OF DATE: 20250805 DATE AS OF CHANGE: 20250805 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Sarena Francis Willard CENTRAL INDEX KEY: 0001423786 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-39122 FILM NUMBER: 251186844 MAIL ADDRESS: STREET 1: C/O FIVE PRIME THERAPEUTICS, INC. STREET 2: 2 CORPORATE DRIVE CITY: SOUTH SAN FRANCISCO STATE: CA ZIP: 94080 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: 89bio, Inc. CENTRAL INDEX KEY: 0001785173 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences EIN: 831114349 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 655 MONTGOMERY STREET STREET 2: SUITE 1500 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 BUSINESS PHONE: (415) 432-9270 MAIL ADDRESS: STREET 1: 655 MONTGOMERY STREET STREET 2: SUITE 1500 CITY: SAN FRANCISCO STATE: CA ZIP: 94111 4 1 ownership.xml 4 X0508 4 2025-08-01 0001785173 89bio, Inc. ETNB 0001423786 Sarena Francis Willard C/O 89BIO, INC. 655 MONTGOMERY STREET, SUITE 1500 SAN FRANCISCO CA 94111 false true false false Chief Operating Officer false Common Stock 2025-08-01 4 F false 3206 9.16 D 77210 D Common Stock 2025-08-05 4 F false 2979 9.69 D 74231 D These shares were withheld from the vesting of restricted stock units to cover the estimated tax withholding obligation. Includes an aggregate of 1,666 shares acquired by the Reporting Person under the Issuer's 2019 Employee Stock Purchase Plan on June 30, 2025. /s/ Ryan A. Murr, as attorney-in-fact for Francis Willard Sarena 2025-08-05