Company: HCWB
Filing Date: 2025-04-28
Form Type: DEFA14A
Source: 0000950170-25-058980
Chunk: 1

Company: HCW Biologics Inc.
Filing Date: 2025-04-28
Form: DEFA14A
Chunk 1
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 will not otherwise receive a paper or email copy. For complete information and to vote, visit www.ProxyVote.com Vote Virtually at the Meeting* June 17, 2025 10:00 a.m. Eastern Time Virtually at: www.virtualshareholdermeeting.com/HCWB2025 *Please check the meeting materials for any special requirements for meeting attendance. Vote at www.ProxyVote.com THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Voting Items. 1. Elect Scott T. Garrett and Gary M. Winer as Class I directors to serve for a term of three years and until such director’s successor is duly elected and qualified or until such director’s earlier death, resignation, disqualification or removal. Nominees: 01) Scott T. Garrett 02) Gary M. Winer Board Recommends For 2. Ratify the appointment of Crowe LLP as the independent registered public accounting firm of HCW Biologics Inc. for the fiscal year ending December 31, 2025. NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Board Recommends For Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings” V73227-P31049

THIS IS NOT A VOTABLE BALLOT This is an overview of the proposals being presented at the upcoming stockholder meeting. Please follow the instructions on the reverse side to vote these important matters. Voting Items 1.Elect Dr. Hing C. Wong as a Class III director to serve for a term of three years and until his successor is duly elected and qualified or until his earlier death, resignation, disqualification or removal.Nominee: 1a.Dr. Hing C. Wong For 2.Ratify the appointment of Grant Thornton LLP as the independent registered public accounting firm of HCW Biologics Inc. for the fiscal year ending December 31, 2024. For NOTE: Such other business as may properly come before the meeting or any adjournment thereof. Prefer to receive an email instead? While voting on www.ProxyVote.com, be sure to click “Delivery Settings”. V36732-P09665