Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 450

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 450
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 the Company delisted the Public Units, shares of common stock and warrants from NYSE and listed the shares of the Company common stock on the Nasdaq Global Market (“Nasdaq”) under the symbol

<div align='center'>F-78</div>

#### GIGCAPITAL5, INC.

### Notes to Financial Statements
“GIA.” From April 21, 2023 until the Effective Time, the Public Units and the warrants trade at the OTC Markets Group Inc. under the symbols “GIAFU” and “GIAFW,” respectively. The Company applied for listing of the common stock of the Combined Company and the warrants of the Combined Company on the Nasdaq under the symbols “QTI” and “QTI.WS,” respectively, at the Effective Time. The symbol for the warrants was rejected so only the common stock is trading on the Nasdaq under the symbol GTI. The warrants trade in the over-the-counter market under the symbol QTIWW

#### 5.

#### RELATED PARTY TRANSACTIONS

#### Founder Shares
During the period from January 19, 2021 (date of inception) to December 31, 2021, the Founder purchased 5,735,000 shares of common stock (the “Founder Shares”), after giving effect to the forfeiture on September 23, 2021 of 4,312,500 Founder Shares, for an aggregate purchase price of $25,000, or $0.0043592 per share. The Company also issued 5,000 shares of common stock, solely in consideration of future services, to Mr. Weightman, its Treasurer and Chief Financial Officer, pursuant to the Insider Shares Grant Agreements dated September 23, 2021 between the Company and Mr. Weightman. The 5,000 shares granted to Mr. Weightman are subject to forfeiture and cancellation if he resigns or the services are terminated for cause prior to the completion of the Business Combination. The Founder Shares are identical to the common stock included in the Public Units sold in the Offering except that the Founder Shares are subject to certain transfer restrictions, as described in more detail below.

#### Private Placement
The Founder purchased from the Company an aggregate of 795,000 Private Placement Units at a price of $10.00 per Private Placement Unit in a Private Placement that occurred simultaneously with the completion of the closing of the Offering. Each Private Placement Unit consists of one share of the Company’s common stock and one warrant (a “Private Placement Warrant”). Each