Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 453

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 453
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 fullest extent permitted under Delaware law against liabilities that may arise by reason of their service to us, and to advance expenses incurred as a result of any proceeding against them as to which they could be indemnified.

## Item 15. Recent Sales of Unregistered Securities.

#### Working Capital Notes
On December 13, 2023, the Company issued that certain Eleventh Amended and Restated Working Capital Note (the “ Working Capital Note ”) to GigAcquisitions5, LLC (the “ Sponsor ”) for an aggregate principal amount of $1,500,000, the terms of which provide that the Sponsor may elect to convert the Working Capital Note, at a price of $30.00 per unit, into units identical to the private placement units issued in connection with GigCapital5’s initial public offering. In connection with the Closing, (i) the Sponsor elected to partially convert (the “ Conversion ”) $943,640 in principal balance outstanding under the Working Capital Note into 31,455 shares of Common Stock and Warrants to purchase 31,455 shares of Common Stock at an exercise price of $6.90 per share, and (ii) the Company

<div align='center'>II-4</div>

repaid the remaining principal balance of $556,360 to the Sponsor concurrently with the Conversion, such that the Company’s obligations under the Working Capital Note have been satisfied in full.

Cable Car Note Purchase Agreement and Note Issuance

On February 29, 2024, the Company and QT Imaging entered into a Note Purchase Agreement (“ Cable Car NPA ”) with Funicular Funds, LP (“ Cable Car ”), pursuant to which Cable Car agreed to advance $1,500,000 to the Company upon the closing of the Business Combination (the “ Loan ”), as was evidenced by a promissory note that may be convertible in certain circumstances into shares of Company Common Stock at a conversion price of $6.00 per share (the “ Cable Car Note ”), dated March 4, 2024, by and between the Company and Cable Car. The Cable Car Note does not bear interest, and is due and payable 13 months after issuance, unless the time for payment is accelerated as a result of an event of default. As full compensation to Cable Car for the loan to the Company in lieu of any simple or in-kind interest on the Cable Car Note, QT Imaging issued to Cable Car that number of shares of QT Imaging which at the completion of the Business Combination would be