Company: HCWB
Filing Date: 2025-08-18
Form Type: 8-K/A
Source: 0000950170-25-109637
Chunk: 1

Company: HCW Biologics Inc.
Filing Date: 2025-08-18
Form: 8-K/A
Chunk 1
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 the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ☒

Explanatory Note The Company is filing this Amendment No. 1 on Form 8K/A (the “Amendment”) to the Current Report on Form 8-K filed with the Securities and Exchange Commission (“SEC”) on August 14, 2025 (“Original Form 8-K”) due to a clerical error with respect to a delay in issuance of the press release included as Exhibit 99.1 from August 14, 2025 to August 18, 2025.

Except as stated herein, this Current Report on Form 8-K/A does not reflect events occurring after the filing of the Original Form 8-K on August 14, 2024 and no attempt has been made to this Current Report on Form 8-K/A to modify or update other disclosures as presented in the Original Form 8-K. Accordingly, this Form 8-K/A should be read in conjunction with the Original Form 8-K and our filings with the SEC subsequent to the filing of the Original Form 8-K. Item 2.02 Results of Operations and Financial Condition. On August 18, 2025, HCW Biologics Inc. issued a press release announcing its financial results for the quarter ended June 30, 2025. The full text of the press release issued in connection with the announcement is furnished as Exhibit 99.1 to this Current Report on Form 8-K. The information set forth in this Item 2.02 (including Exhibit 99.1) is being furnished and shall not be deemed “filed” for purposes of Section 18 of the Securities Exchange Act of 1934, as amended (the “Exchange Act”), or otherwise subject to the liabilities of that section, nor shall it be deemed incorporated by reference in any filing under the Securities Act of 1933, as amended, or the Exchange Act, regardless of any general incorporation language in such filing, except as expressly set forth by specific reference in such a filing. Item 9.01 Financial Statements and Exhibits. (d) Exhibits

| Exhibit No. 
 99.1        |     | Description                                                                  
 Press release dated August 18, 2025.                                         |
|:------------|:----|:-----------------------------------------------------------------------------|
| 104         |     | Cover Page Interactive Data File (embedded within the Inline XBRL document). |