Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 403

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 403
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 markets for similar assets or liabilities and quoted prices for identical assets or liabilities in markets that are not active.

Level 3: Unobservable inputs which are supported by little or no market activity and which are significant to the fair value of the assets or liabilities.

The following table presents information about the Company’s assets and liabilities that are measured at fair value on a recurring basis as of September 30, 2025 and December 31, 2024, and indicates the fair value hierarchy of the valuation inputs the Company utilized to determine such fair value:

<div align='center'>F-61</div>

#### QT IMAGING HOLDINGS, INC.

### Notes to Condensed Consolidated Financial Statements
<div align='center'>(Unaudited)</div>

|                        | Description: |     | Level |   |     |   | September 30, 2025 |     |   | December 31, 2024 |
|:-----------------------|:-------------|:----|:------|--:|:----|:--|-------------------:|:----|:--|------------------:|
| Assets:                |              |     |       |   |     |   |                    |     |   |                   |
| Certificate of deposit |              |     |       | 2 |     | $ |             20,000 |     | $ |            20,000 |
| Liabilities:           |              |     |       |   |     |   |                    |     |   |                   |
| Warrant Liability      |              |     |       | 2 |     | $ |            105,834 |     | $ |            22,234 |
| Earnout liability      |              |     |       | 3 |     | $ |          2,510,000 |     | $ |           440,000 |
| Derivative liability   |              |     |       | 3 |     | $ |                  — |     | $ |           303,300 |

Warrant Liability

The Company has determined that the warrants that were a constituent part of (i) the private placement units that were issued in a private placement sale by GigCapital5 prior to the Merger and (ii) the private placement units that were issued upon conversion of working capital notes issued by GigCapital5 prior to the Merger, which conversion occurred concurrent with the Merger (“Private Warrants”) are subject to treatment as a liability, as the transfer of the warrants to anyone other