Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 374

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 374
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 date on which the Company consummated the Business Combination with GigCapital5; (ii) the date the Company winds up; or (iii) December 31, 2023. The Working Capital Note may be prepaid without penalty. On March 4, 2024, the holder of the Working Capital Note agreed to extend and subordinate the promissory note pursuant to and in accordance with the terms of the Business Combination

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#### QT IMAGING HOLDINGS, INC.

### Notes to Consolidated Financial Statements
Agreement. Effective on the Closing of the Business Combination, the Working Capital Note cannot be repaid prior to the repayment or conversion of the Yorkville Note received from Yorkville (see Note 8).

On March 4, 2024, the Company assumed the $ 1,560,000outstanding debt balance due to a related party (the “Extension Note”) pursuant to the Business Combination Agreement. The Extension Note did not bear any interest and could not be repaid prior to the repayment of the Yorkville Note received from Yorkville. On November 22, 2024, the Extension Note was cancelled in its entirety in exchange for the purchase of 890,411shares of common stock at a purchase price of $ 1.752per share and issuance of 890,411of PIPE Warrants with exercise price of $ 2.016per share.

Private Placement

On November 12, 2024, the Company and certain board members entered into the Securities Purchase Agreement for the issuance of shares of common stock plus warrants for the purchase of common stock with an aggregate purchase price of $ 999,998in exchange for 570,775shares of common stock at an issuance price of $ 1.752per share and 570,775of PIPE Warrants with an exercise price of $ 2.016per share, the closing of which occured on November 22, 2024.

Management Services and Business Associate Agreement

In September 2020, QT Imaging entered into a Management Services Agreement (the “Agreement”) and a Business Associate Agreement with John C. Klock, M.D., a California sole proprietorship operating as the QT Imaging Center (the “Practice”). John C. Klock, M.D. was the Chief Executive Officer of QT Imaging, serves on its Board of Directors, and was the largest single stockholder of QT Imaging. The Practice provided medical imaging to patients using the QT Breast Scanner. Under the terms