Company: QTIWW
Filing Date: 2025-12-31
Form Type: 424B3
Source: 0001628280-25-059235
Chunk: 417

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-31
Form: 424B3
Chunk 417
---
 |     |   | 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 $10,000,000 from Yorkville and issued Yorkville the Yorkville Note in the amount of $10,000,000 for such Pre-Paid Advance that was originally due 15 months from the date of issuance, and interest shall accrue on the outstanding balance of the Yorkville Note at an annual rate equal to 6%, subject to an increase to 18% upon an event of default as described in the Yorkville Note. The Yorkville Note is convertible by Yorkville into shares of the Company's common stock. As consideration for the Pre-Paid Advance, immediately prior to, and substantially concurrently with, the closing of the Business Combination, QT Imaging issued to Yorkville that number of shares of QT Imaging which converted in the aggregate into 333,334 shares of the Company's common stock upon the completion of the Business Combination. In accordance with ASC 470-20, the proceeds of $10,000,000 were recorded between the promissory note and common