Company: QTIWW
Filing Date: 2025-12-31
Form Type: 424B3
Source: 0001628280-25-059235
Chunk: 26

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-31
Form: 424B3
Chunk 26
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smaller reporting company” as defined in the Securities and Exchange Act. We may continue to be a smaller reporting company even after we are no longer an emerging growth company. We may take advantage of certain of the scaled disclosures available to smaller reporting companies and will be able to take advantage of these scaled disclosures for so long as the market value of our voting and non-voting Common Stock held by non-affiliates is less than $250.0 million measured on the last business day of our second fiscal quarter, or our annual revenue is less than $100.0 million during the most recently completed fiscal year and the market value of our voting and non-voting Common Stock held by non-affiliates is less than $700.0 million measured on the last business day of our second fiscal quarter.

As a result, the information in this prospectus and that we provide to our investors in the future may be different than what you might receive from other public reporting companies.

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THE OFFERING

| Issuer                                                    |     | QT Imaging Holdings, Inc. (f/k/a GigCapital5, Inc.).                                                                                                                                                                                                                                                                                                                                                                                                                                                                                     |
| Shares of Common Stock Offered by the Selling Stockholder |     | We are registering the resale by the Selling Securityholders of up to 29,336,017 shares of Common Stock, consisting of (i) 2,562,334 Common Shares and (ii) 26,773,683  Warrant Shares issuable on the exercise of the warrants held by the Selling Securityholders.                                                                                                                                                                                                                                                                     |
| Terms of the Offering                                     |     | The Selling Securityholders will determine when and how they will dispose of the shares of Common Stock registered under this prospectus for resale.                                                                                                                                                                                                                                                                                                                                                                                     |
| Shares Outstanding Prior to the Offering                  |     | As of December 26, 2025, we had 11,902,198 shares of Common Stock issued and outstanding.                                                                                                                                                                                                                                                                                                                                                                                                                                                |
| Shares Outstanding After the Offering                     |     | 38,667,630 shares of Common Stock (assuming the exercise for cash of Warrants to purchase 26,773,683 Warrant Shares).                                                                                                                                                                                                                                                                                                                                                                                                                    |
| Use of Proceeds                                           |     | We will not receive any proceeds from the sale of shares of Common Stock by the Selling Securityholders. With respect to the Warrant Shares, we will not receive any proceeds from the sale of such shares but we will receive such amounts that are paid to us upon the exercise