Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 415

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 415
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     |   |            251,963 |     |   |                 — |
| Other                   |     |   |            617,876 |     |   |           205,544 |
| Total                   |     | $ |          1,066,801 |     | $ |           516,552 |

<div align='center'>F-67</div>

#### QT IMAGING HOLDINGS, INC.

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

Accrued expenses and other current liabilities consisted of the following as of September 30, 2025 and December 31, 2024:

|                         |     |   | September 30, 2025 |           |     |   | December 31, 2024 |         |
|:------------------------|:----|:--|-------------------:|----------:|:----|:--|------------------:|--------:|
| Accrued legal           |     | $ |          2,042,991 |           |     | $ |         1,867,107 |         |
| Accrued personnel costs |     |   |                    | 1,147,288 |     |   |                   | 963,865 |
| Accrued excise taxes    |     |   |                    |         — |     |   |                   | 207,358 |
| Accrued advisory fee    |     |   |                    |   101,963 |     |   |                   | 100,000 |
| Accrued purchases       |     |   |                    | 1,680,970 |     |   |             1,834 |         |
| Other                   |     |   |                    |   262,004 |     |   |                   | 409,790 |
| Total                   |     | $ |          5,235,216 |           |     | $ |         3,549,954 |         |

#### 7.

#### Long-Term Debt
Yorkville Pre-Paid Advance

On March 4, 2024, the Company received the Pre-Paid Advance of $ 10,000,000from Yorkville and issued Yorkville the Yorkville Note in the amount of $ 10,000,000for such Pre-Paid Advance that was originally due 15months from the date of issuance, and interest shall accrue on the outstanding balance of the