Company: QTIWW
Filing Date: 2025-12-31
Form Type: 424B3
Source: 0001628280-25-059235
Chunk: 429

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-31
Form: 424B3
Chunk 429
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 of the Company’s common stock, then the Company shall, at the option of Lynrock Lake, prepay, or cause to be prepaid, Tranche B on or prior to the date which is thirty days after the date of the receipt by the Company of such Net Cash Proceeds in an amount equal to the lesser of (i) 100% of such Net Cash Proceeds or (ii) the principal amount of Tranche B on such date of prepayment, together with all accrued and unpaid interest thereon and any outstanding fees or premium, if any, payable in accordance with the Lynrock Lake Term Loan. Additionally, in connection with any mandatory prepayment of Tranche B on or prior to December 31, 2025, such mandatory prepayment will be subject to the payment of the Tranche B Premium instead of the Make-Whole Amount.

On October 6, 2025, the Company repaid the $5.0 million under Tranche B of the Lynrock Lake Term Loan, plus accrued interest and the Tranche B Premium, with a portion of the proceeds from the October 2025 Private Placement. Refer to Note 10, Stockholders’ Deficit. As a result, Tranche B was presented within current maturities of long-term debt on the condensed consolidated balance sheets.

As of September 30, 2025, the outstanding amount of the Lynrock Lake Term Loan was $5,272,879, net of the unamortized debt discount of $9,827,121, and accrued interest of $670,193. Interest expense, including amortization of debt issuance costs, for the three and nine months ended September 30, 2025 was $521,243 and $943,073, respectively.

Future principal payments on the long-term debt as of September 30, 2025 are as follows:

| Year ending December 31:                   
 2025 (remaining)                           |     |   |  5,013,769 |
|:-------------------------------------------|:----|:--|-----------:|
| 2026                                       |     |   |      9,197 |
| 2027                                       |     |   | 10,100,000 |
| Total payments                             |     |   | 15,122,966 |
| Less: Unamortized debt issuance costs      |     |   | -9,827,121 |
| Less: Current maturities of long-term debt |     |   | -5