Company: QTIWW
Filing Date: 2025-12-29
Form Type: S-1/A
Source: 0001628280-25-058960
Chunk: 424

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-29
Form: S-1/A
Chunk 424
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 ended September 30, 2025.

On February 26, 2025, the Company used a portion of the proceeds of the Lynrock Lake Term Loan to pay Cable Car an amount equal to the full principal, interest and fees amount of approximately $ 1,625,000in cash to fully settle and discharge the Company’s obligations under the Cable Car Note and extinguish the Cable Car Note as having been fully performed. As a result of the extinguishment of the Cable Car Note, the Company recorded an expense of $ 0and $ 93,450in other income (expense), net within the condensed consolidated statements of operations and comprehensive loss for the three and nine months ended September 30, 2025, respectively.

As of December 31, 2024, the outstanding amount of the Cable Car Note was $ 1,366,458, net of unamortized issuance costs of $ 133,542. Interest expense, including amortization of debt issuance costs, for the three months ended September 30, 2025 and 2024 was $ 0 and $ 108,706, respectively. Interest expense, including amortization of debt issuance costs, for the nine months ended September 30, 2025 and 2024 w as $ 36,386an d $ 234,445, respectively.

<div align='center'>F-71</div>

#### QT IMAGING HOLDINGS, INC.

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

Lynrock Lake Term Loan

On February 26, 2025, the Company entered into the Credit Agreement that provides the Lynrock Lake Term Loan with Lynrock Lake. The Credit Agreement is secured by a first priority lien on substantially all assets of the Company and provides for a term loan in the aggregate principal amount of $ 10,100,000at an interest rate of 10.0% per annum, compounded quarterly. The maturity date of the Credit Agreement is March 31, 2027. The Lynrock Lake Term Loan shall be repaid on the maturity date in an amount equal to the aggregate principal amount outstanding, together with all accrued and unpaid interest and any outstanding and payable fees.

Subject to the payment of the Make-Whole Amount (as defined in the Credit Agreement), the Company may at any time prior to the maturity date optionally prepay the term loan, in full or in part, upon irrevocable written notice of threebusiness