Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 454

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 454
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 balance of the Working Capital Note is converted. Each Private Placement Unit consists of one

<div align='center'>F-80</div>

#### GIGCAPITAL5, INC.

### Notes to Financial Statements
share of the Company’s common stock, par value $0.0001 per share, and one redeemable warrant. The warrants constituting a part of the Private Placement Units would be exercisable, subject to the terms and conditions of the warrant and during the exercise period as provided in the warrant agreement governing the warrants. The Company has relied upon Section 4(a)(2) of the Securities Act, in connection with the issuance and sale of the convertible promissory note, as it was issued to a sophisticated investor without a view to distribution and was not issued through any general solicitation or advertisement.

On December 13, 2023, the Company issued the First Non-Convertible Working Capital Note for a collective principal amount of $66,360 (the “First Non-Convertible Working Capital Note”). The First Non-Convertible Working Capital Note was issued to provide the Company with additional working capital and will not be deposited into the Trust Account. On February 7, 2024, the Company amended and restated the First Non-Convertible Working Capital Note to reflect an additional principal amount of $195,887 extended by the Sponsor to the Company for a collective principal amount under the Second Non-Convertible Working Capital Note of $262,247. The Second Non-Convertible Working Capital Note was issued to provide the Company with additional working capital and will not be deposited into the Trust Account. On February 15, 2024, the Company amended and restated the Second Non-Convertible Working Capital Note with the Third Non-Convertible Working Capital Note to reflect an additional principal amount of $35,000 extended by the Sponsor to the Company for a collective principal amount under the Third Non-Convertible Working Capital Note of $297,247. The Third Non-Convertible Working Capital Note was issued to provide the Company with additional working capital and will not be deposited into the Trust Account. The Third Non-Convertible Working Capital Note bears no interest and is repayable in full upon the consummation of a Business Combination by the Company. The Company issued the Second and Third Non-Convertible Working Capital Note in consideration for additional loans from the Sponsor to fund the Company’s working capital requirements.

The Company has determined that the convertible Working Capital Note contains only one embedded feature, which is the conversion option. The conversion option is an embedded derivative that would require