Company: HCWB
Filing Date: 2025-05-09
Form Type: S-1
Source: 0001193125-25-116745
Chunk: 102

Company: HCW Biologics Inc.
Filing Date: 2025-05-09
Form: S-1
Chunk 102
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 by the holders of outstanding stock having not less than the minimum number
of votes that would be necessary to authorize or take such action at a meeting at which all shares of our stock entitled to vote thereon were present and voted, unless our amended and restated certificate of incorporation provides otherwise. Subject
to applicable law and the rights, if any, of the holders of any outstanding series of preferred stock or any other outstanding class or series of stock of HCWB, the Charter does not permit our holders of Common Stock to act by consent in writing.

Section 203 of the DGCL

HCWB will be subject to the provisions of Section 203 of the DGCL, which we refer to as “Section 203” regulating corporate
takeovers. In general, Section 203 prohibits a publicly held Delaware corporation from

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engaging, under certain circumstances, in a business combination with an interested stockholder for a period of three years following the date the person became an interested stockholder unless:

| • |     | prior to the date of the transaction, HCWB’s board of directors approved either the business combination or 
 the transaction that resulted in the stockholder becoming an interested stockholder;                        |

| • |     | upon completion of the transaction that resulted in the stockholder becoming an interested stockholder, the                                                                                                                                               
 interested stockholder owned at least 85% of the voting stock of the corporation outstanding at the time the transaction commenced, excluding for purposes of determining the voting stock outstanding, but not the outstanding voting stock owned by the 
 interested stockholder, (1) shares owned by persons who are directors and also officers and (2) shares owned by employee stock plans in which employee participants do not have the right to determine confidentially whether shares held                 
 subject to the plan will be tendered in a tender or exchange offer; or                                                                                                                                                                                    |

| • |     | at or subsequent to the date of the transaction, the business combination is approved by HCWB’s board of                                                                                                                              
 directors and authorized at an annual or special meeting of stockholders, and not by written consent, by the affirmative vote of at least two-thirds of the outstanding voting stock that is not owned by the interested stockholder. |

Generally, a business combination includes a merger, asset or stock sale, or other transaction resulting in a financial benefit to the interested stockholder. An interested stockholder is a person who, together with affiliates and associates, owns or, within three years prior to the determination of interested stockholder status, did own 15