Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 389

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 389
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 — |     |      |   -800,000 |
| Payment of deferred issuance costs                                                                          |     |                   |    -150,000 |     |      |          — |
| Proceeds from the Merger, net of transaction costs                                                          |     |                   |           — |     |      |  1,238,530 |
| Repurchase of warrant from Yorkville                                                                        |     |                   |  -5,000,000 |     |      |          — |
| Net cash provided by financing activities                                                                   |     |                   |   6,447,686 |     |      | 10,220,475 |
| Net increase in cash and restricted cash and cash equivalents                                               |     |                   |     543,296 |     |      |  1,379,483 |

<div align='center'>F-53</div>

#### QT IMAGING HOLDINGS, INC.

#### Condensed Consolidated Statements of Cash Flows
<div align='center'>For the Nine Months Ended September 30, 2025 and 2024

(Unaudited)</div>

| Cash and restricted cash and cash equivalents, beginning of year         |     |   |  1,192,104 |     |   |   184,686 |
|:-------------------------------------------------------------------------|:----|:--|-----------:|:----|:--|----------:|
| Cash and restricted cash and cash equivalents, end of year               |     | $ |  1,735,400 |     | $ | 1,564,169 |
| Supplemental disclosure of cash flow information:                        |     |   |            |     |   |           |
| Cash paid for interest                                                   |     | $ |     12,461 |     | $ |   537,517 |
| Supplemental disclosures of noncash investing and financing activities:  |     |   |            |     |   |           |
| Fair value of embedded derivatives upon issuance of convertible debt     |     |   |          — |     |   | 5,120,900 |
| Fair value of common stock issued with convertible debt                  |     |   |          — |     |   | 2,312,617 |
| Transfer of equipment to inventory                                       |     |   |          — |     |   |   289,214 |
| Debt issuance costs included in accounts payable                         |     |   |    144,300 |     |   |         — |
| Conversion