Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 234

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 234
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                           |     |             |     | 11/19/2020 |     |               |     | 6/8/2021   |     |                   |     | 10/3/2023  |     | QT Imaging, Inc. |
| QT IMAGING                          |     |           | 98800489 |     |              |          | In the publication period |     |             |     | 10/14/2024 |     |               |     |            |     |                   |     |            |     | QT Imaging, Inc. |
| Breast Acoustic CT                  |     |           | 98414186 |     |              |          | In the publication period |     |             |     | 2/21/2024  |     |               |     |            |     |                   |     |            |     | QT Imaging, Inc. |
| Breast ACT                          |     |           | 98414157 |     |              |          | In the publication period |     |             |     | 2/21/2024  |     |               |     |            |     |                   |     |            |     | QT Imaging, Inc. |
| Breast Acoustic Computed Tomography |     |           | 98414202 |     |              |          | In the publication period |     |             |     | 2/21/2024  |     |               |     |            |     |                   |     |            |     | QT Imaging, Inc. |

The Company is monitoring research laboratories, commercial companies or universities developing ultra-low frequency transmitted sound imaging using inverse scattering image reconstruction. Therefore, the Company believes that its patent and proprietary position is currently substantial and a very valuable asset.

#### Employees
As of September 30, 2025, the Company had 30 employees. Of these, 26 are full-time employees, 25 work in research, development, manufacturing, regulatory and operations, and 5 work in general and administrative capacities. 21 employees are located in Novato, CA. None of QT Imaging’s employees are represented by a labor union or are subject to a collective bargaining agreement.

#### Legal Proceedings
As of September 30, 2025, the Company was not a party to any material legal proceedings..

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### MANAGEMENT
The following is a list of the persons who currently serve, as of the date of this prospectus, as directors and executive officers of QT