Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 133

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 133
---
 our warrants are traded as of now in the over-the-counter (OTC) Pink Sheets under the symbol “QTIWW.” Our Common Stock will be delisted 10 calendar days from the date that Nasdaq files the Form 25, Notification of Removal from Listing and/or Registration, with the SEC. We intend to apply to have our Common Stock listed on either the OTC Markets’ OTCQX or OTCQB market tier, and if in the future, we are able to qualify to list our Common Stock on Nasdaq under the Nasdaq’s initial listing standards, we intend to apply for listing on Nasdaq.

The actual offering price by the Selling Securityholders of the shares of Common Stock covered by this prospectus will be determined by prevailing market prices at the time of sale, by private transactions negotiated by the Selling Securityholders or as otherwise described in the section entitled “Plan of Distribution.”

<div align='center'>81</div>

#### Table of Contents

### UNAUDITED PRO FORMA COMBINED FINANCIAL INFORMATION
The Company is providing the following unaudited pro forma condensed combined financial information to aid in the analysis of the financial aspects of the business combination between GigCapital5 and QT Imaging, which was consummated on March 4, 2024. The historical financial information of QT Imaging was derived from the audited consolidated financial statements for the year ended December 31, 2023.

The historical financial information of GigCapital5 was derived from the audited financial statements for the year ended December 31, 2023. This information should be read together with QT Imaging’s and GigCapital5’s financial statements and related notes.

#### Description of the Transaction
On December 8, 2022, GigCapital5 and its wholly owned subsidiary, QTI Merger Sub, Inc., entered into a Business Combination Agreement with QT Imaging. Following the approval at the annual meeting of the stockholders of GigCapital5 held on February 20, 2024, and pursuant to and in accordance with the terms of the Business Combination Agreement, QTI Merger Sub, Inc. merged with and into QT Imaging with QT Imaging surviving the Merger. Upon the consummation of the Merger, GigCapital5 changed its name to QT Imaging Holdings, Inc.

Subject to and in accordance with the terms of the Business Combination Agreement and customary adjustments, at the effective time of the Merger, each share of QT Imaging capital stock issued and outstanding immediately prior to the effective time of the Merger