Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 22

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 22
---
 payment premium in respect of such principal amount, if applicable), and that for any subsequent Advances pursuant to the terms of the SEPA, Yorkville shall pay half of such Advance Proceeds directly to the Company and the other half of such Advance Proceeds shall be paid by Yorkville offsetting the amount of the Advance Proceeds against an equal amount outstanding under the Yorkville Note (first towards accrued and unpaid

<div align='center'>11</div>

#### Table of Contents
interest, and then towards outstanding principal and the corresponding payment premium in respect of such principal amount, if applicable). On January 9, 2025, the Company delivered its first Advance Notice under the SEPA for the sale of 885,000 shares of Common Stock. This resulted in the reduction of an additional $182,682 in principal of the Yorkville Note.

Cable Car Note Purchase Agreement and Note Issuance

On February 29, 2024, GigCapital5 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, as was evidenced by a promissory note that may be convertible in certain circumstances into shares of Common Stock at a conversion price of $2.00 per share (the “

#### Cable Car Note
”), dated March 4, 2024, by and between the Company and Cable Car. The Cable Car Note at issuance did not bear interest, and was originally 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 converted in accordance with the terms of the Business Combination Agreement into 180,000 shares of Common Stock. QT Imaging, and its wholly owned subsidiary, QT Ultrasound Labs, Inc., at the Closing also provided a guaranty (the “

#### Cable Car Guaranty
”), whereby each of them unconditionally guaranteed, as primary obligor and not merely as surety, the prompt and complete payment and performance when due, whether by demand, acceleration or otherwise, of the obligations of the Company under the Cable Car Note in the currency in which