Company: QTIWW
Filing Date: 2025-03-03
Form Type: 424B3
Source: 0001844505-25-000032
Chunk: 8

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-03-03
Form: 424B3
Chunk 8
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 and fees amount of approximately $1,625,000 in cash to fully settle and discharge the Company’s obligations under the Cable Car Note and extinguish the Cable Car Note as having been fully performed.

#### Amendments to Promissory Notes
On February 26, 2025, the Company entered into (i) an Amendment (the “ 2023 Klock Note Amendment ”) to the Sixth Amended and Restated Promissory Note, dated October 26, 2023 (the “ 2023 Klock Note ”), and originally delivered by QT Imaging to The John Charles Klock Jr. and Cynthia L. Klock Trust U/A DTD 07/26/07 (the “ Klock Trust ”), (ii) a Third Amendment (the “ 2022 Klock Note Amendment ”) to Reformed Convertible Promissory Note, dated September 1, 2022 (the “ 2022 Klock Note ”), and originally delivered by QT Imaging to the Klock Trust, and (iii) an Amendment (the “ Stanley Note Amendment ”) to Convertible Promissory Note, dated March 2, 2022 (the “ Stanley Note ”, and together with the 2023 Klock Note and the 2022 Klock Note, the “ Pre-Combination Notes ”), originally delivered by QT Imaging to Richard J. and Barbara Stanley, joint tenants with a right of survivorship.

These Pre-Combination Notes were issued to their respective holders by QT Imaging prior to the closing of the Company’s business combination on March 4, 2024, at which time, the 2022 Klock Note and the 2023 Klock Note were assigned to and assumed by the Company, upon which the terms of the 2022 Klock Note and the 2023 Klock Note were modified in part to provide, amongst other things, that the 2022 Klock Note and the 2023 Klock Note would not be convertible into shares of the Company’s Common Stock and to remove the security interests and liens provided for by QT Imaging in the 2022 Klock Note. The Stanley Note was assigned to and assumed by the Company on February 26, 2025, on the same terms as the assignment and assumption of the 2022 Klock Note, pursuant to the Stanley Note Amendment, including to provide that the Stanley Note is not convertible into shares of the Company’s Common Stock and to remove the security interests and liens provided