Company: QTIWW
Filing Date: 2025-01-16
Form Type: S-1
Source: 0001628280-25-001723
Chunk: 366

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-01-16
Form: S-1
Chunk 366
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 during the period, without consideration for potentially dilutive securities. Diluted net loss per share is computed by dividing the net loss attributable to common stockholders by the weighted-average number of common shares and potentially dilutive common share equivalents outstanding for the period determined using the treasury-stock and if-converted methods. For the purposes of the diluted net loss per share calculation, common stock equivalents are considered to be potentially dilutive securities.

<div align='center'>F-40</div>

#### QT IMAGING HOLDINGS, INC.

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

Reconciliation of net loss per share for the three and nine months ended September 30, 2024 and 2023 is as follows:

|                                                                                          |     | 2024 | Three Months Ended 
      September 30, |     | 2023 |            |     | 2024 | Nine Months Ended 
     September 30, |     | 2023 |            |
|:-----------------------------------------------------------------------------------------|:----|:-----|-------------------:|:----|:-----|-----------:|:----|:-----|------------------:|:----|:-----|-----------:|
| Net loss attributable to QT Imaging Holdings, Inc.                                       |     | $    |         -3,619,494 |     | $    | -1,375,939 |     | $    |        -9,166,958 |     | $    | -4,588,900 |
| Deemed dividend related to the modification of equity classified warrants                |     |      |                  — |     |      |          — |     |      |        -5,185,502 |     |      |          — |
| Net loss attributable to common stockholders                                             |     | $    |         -3,619,494 |     | $    | -1,375,939 |     | $    |       -14,352,460 |     | $    | -4,588,900 |
| Weighted-average number of common shares used in computing net loss per common share (1) |     |      |         21,441,416 |     |      |  9,541,643 |     |      |        18,712,468 |     |      |  9,533,185 |
| Net loss per share - basic and diluted (1)                                               |     | $    |              -0.17