Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 403

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 403
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     | $              | 2,230,570 |     | $            | 2,140,431 |     | $            | 90,139 |     |             |     | 0.50 Years |

Amortization expense was $0 and $46,470 for each of the three months ended September 30, 2024 and 2023. Amortization expense was $90,139 and $139,410 for each of the nine months ended September 30, 2024 and 2023.

#### 7.

#### Balance Sheet Details
Prepaid expenses and other current assets consisted of the following as of September 30, 2024 and December 31, 2023:

|                   |     |   | September 30, 2024 |     |   | December 31, 2023 |
|:------------------|:----|:--|-------------------:|:----|:--|------------------:|
| Prepaid insurance |     | $ |            432,170 |     | $ |             9,808 |
| Other             |     |   |            343,415 |     |   |           205,171 |
| Total             |     | $ |            775,585 |     | $ |           214,979 |

Accrued expenses and other current liabilities consisted of the following as of September 30, 2024 and December 31, 2023:

|                         |     |   | September 30, 2024 |     |   | December 31, 2023 |
|:------------------------|:----|:--|-------------------:|:----|:--|------------------:|
| Accrued legal           |     | $ |          1,900,000 |     | $ |            24,729 |
| Accrued personnel costs |     |   |            899,796 |     |   |           120,856 |
| Accrued excise taxes    |     |   |            202,341 |     |   |                 — |
| Accrued advisory fee    |     |   |            100,000 |     |   |                 — |
| Other                   |     |   |            262,080 |     |   |           224,066 |
| Total                   |     | $ |          3,364,217 |     | $ |           369,651 |