Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 314

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 314
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| Change in fair value of earnout liability                                                  |     |                         |   3,230,000 |     |   |          — |
| Interest expense, net                                                                      |     |                         |  -4,497,781 |     |   |   -544,826 |
| Loss before income tax expense (benefit)                                                   |     |                         |  -9,000,663 |     |   | -6,097,351 |
| Income tax expense (benefit)                                                               |     |                         |     -15,783 |     |   |      1,600 |
| Net loss and comprehensive loss attributable to QT Imaging Holdings, Inc.                  |     |                         |  -8,984,880 |     |   | -6,098,951 |
| Less: deemed dividend related to the modification of equity classified warrants            |     |                         |  -5,185,502 |     |   |          — |
| Net loss and comprehensive loss attributable to common stockholders                        |     | $                       | -14,170,382 |     | $ | -6,098,951 |
| Net loss per share - basic and diluted(1)(2)                                               |     | $                       |       -2.13 |     | $ |      -1.92 |
| Weighted-average number of common shares used in computing net loss per common share(1)(2) |     |                         |   6,659,288 |     |   |  3,180,067 |

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(1) Amounts for the year ended December 31, 2023 and before that date differ from those in prior year consolidated financial statements as they were retrospectively adjusted as a result of the accounting or the Business Combination (as defined in the Notes to Consolidated Financial Statements).

(2) Amounts and per share amounts for the years ended December 31, 2024 and 2023 differ from those published in prior consolidated financial statements as they were retrospectively adjusted as a result of the Reverse Stock Split (as described below in Note 1, The Company and Summary of Significant Accounting Policies). Specifically, the number of common shares outstanding during periods before the Reverse Stock Split are divided by the exchange ratio of 3:1, such that each three shares of common stock were combined and reconstituted into one share of common stock effective October 23, 2025.

<div align='center'>The accompanying notes are an integral part of these