Company: QTIWW
Filing Date: 2025-07-03
Form Type: PRE 14A
Source: 0001844505-25-000066
Chunk: 58

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-07-03
Form: PRE 14A
Chunk 58
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 “ Extension Note ”) to GigAcquisitions5 for an aggregate principal amount of $1,560,000. On March 4, 2024, the Company and GigAcquisitions5 agreed to amend and restate the Extension Note to extend the date of maturity until March 4, 2025. On November 22, 2024, GigAcquisitions5 exchanged the Extension Note for the purchase of shares and warrants of the Company in a private placement.

#### QT Imaging Related Agreements

#### QTI Working Capital Note
In July 2020, QT Imaging, Inc. issued a convertible promissory note to Dr. John Klock that was amended on September 1, 2022 and November 14, 2022 (the “ 2022 Klock Note ”), for a principal amount of $2,643,725. In addition, on May 3, 2023, QT Imaging, Inc. issued a promissory note (the “ QTI Working Capital Note ”) to Dr. Klock for a principal amount of $250,000. The QTI Working Capital Note was subsequently amended and restated five times on June 12, 2023 to add an additional principal amount of $100,000, August 15, 2023 to add an additional principal amount of $75,000, August 29, 2023 to add an additional principal amount of $100,000, September 12, 2023 to add an additional principal amount of $75,000, and September 15, 2023 to add an additional principal amount of $50,000, for an aggregate principal amount outstanding as of September 30, 2023 under the QTI Working Capital Note of $650,000. The QTI Working Capital Note was issued to provide the Company with additional working capital during the period prior to consummation of the business combination agreement with GigCapital5, Inc. The QTI Working Capital Note is interest-free and matures on the earlier of (i) the date on which the Company consummates the business combination with GigCapital5, Inc.; (ii) the date the Company winds up; or (iii) December 1, 2023. The QTI Working Capital Note may be prepaid without penalty. On October 26, 2023, the QTI Working Capital Note was amended to increase the outstanding principal amount to $705,000 and extend the potential maturity date from December 1, 2023 to December