0001493152-26-025474.txt : 20260527 0001493152-26-025474.hdr.sgml : 20260527 20260527192330 ACCESSION NUMBER: 0001493152-26-025474 CONFORMED SUBMISSION TYPE: 4 PUBLIC DOCUMENT COUNT: 1 CONFORMED PERIOD OF REPORT: 20260522 FILED AS OF DATE: 20260527 DATE AS OF CHANGE: 20260527 REPORTING-OWNER: OWNER DATA: COMPANY CONFORMED NAME: Byam Rebecca CENTRAL INDEX KEY: 0001866256 ORGANIZATION NAME: FILING VALUES: FORM TYPE: 4 SEC ACT: 1934 Act SEC FILE NUMBER: 001-40591 FILM NUMBER: 261028085 MAIL ADDRESS: STREET 1: C/O HCW BIOLOGICS, INC. STREET 2: 2929 N COMMERCE PKWY CITY: MIRAMAR STATE: FL ZIP: 33025 ISSUER: COMPANY DATA: COMPANY CONFORMED NAME: HCW Biologics Inc. CENTRAL INDEX KEY: 0001828673 STANDARD INDUSTRIAL CLASSIFICATION: PHARMACEUTICAL PREPARATIONS [2834] ORGANIZATION NAME: 03 Life Sciences EIN: 825024477 STATE OF INCORPORATION: DE FISCAL YEAR END: 1231 BUSINESS ADDRESS: STREET 1: 2929 N COMMERCE PKWY CITY: MIRAMAR STATE: FL ZIP: 33025 BUSINESS PHONE: 954-842-2024 MAIL ADDRESS: STREET 1: 2929 N COMMERCE PKWY CITY: MIRAMAR STATE: FL ZIP: 33025 4 1 ownership.xml X0609 4 2026-05-22 0 0001828673 HCW Biologics Inc. HCWB 0001866256 Byam Rebecca false C/O HCW BIOLOGICS INC. 2929 N. COMMERCE PARKWAY MIRAMAR FL 33025 0 1 0 0 Chief Financial Officer 0 Common Stock 2026-05-22 4 P 0 14235 1.405 A 57245 D Common Stock Purchase Warrant 1.28 2026-05-22 4 P 0 14235 0 A 2026-05-22 2031-11-22 Common Stock 14235 18466 D The reporting person purchased these shares directly from the issuer in a private placement, which purchase is exempt from Section 16(b) in accordance with Rule 16b-3(d) promulgated under the Securities Exchange Act of 1934, as amended. /s/ Nicole Valdivieso, as Attorney-in-Fact for Rebecca A. Byam 2026-05-27