Company: QTIWW
Filing Date: 2025-12-31
Form Type: 424B3
Source: 0001628280-25-059235
Chunk: 22

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-31
Form: 424B3
Chunk 22
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 have the right, but not the obligation, to participate in any such additional financing by the Company or its subsidiaries.

On August 26, 2025, the Company and Lynrock Lake entered into an Amended Credit Agreement (the “

#### Amended Credit Agreement
”) to add an additional tranche of $5,000,000 to the loan (“

#### Tranche B
”) and increase the aggregate principal amount of the Term Loans (as defined in the Amended Credit Agreement) to $15,100,000. The proceeds of Tranche B were used to repurchase the Yorkville Warrant from Yorkville pursuant to the terms of a Warrant Repurchase Agreement. The Company has an obligation to pay down Tranche B at a premium out of net cash proceeds which the Company may raise via issuance of the Company’s Common Stock.

On October 6, 2025, the Company repaid the Tranche B loan in the amount of $5.0 million, plus accrued interest and a 6% premium.

#### Lynrock Lake Warrant
Furthermore, in connection with the Lynrock Lake Term Loan, the Company issued the Lynrock Lake Warrant to Lynrock Lake. The Lynrock Lake Warrant is exercisable until February 26, 2035. Lynrock Lake may cashless exercise the Lynrock Lake Warrant. The Lynrock Lake Warrant is also subject to anti-dilution adjustments to the exercise price and the number of shares which may be purchased upon exercise of the Lynrock Lake Warrant in the event that the Company issues shares of Common Stock (or derivative securities) at a price that is either less than the $1.20 exercise price following the Reverse Stock Split or the fair market value of a share of Common Stock from the immediately prior trading day.

Extinguishment of Yorkville Note and Issuance of Warrant

On November 16, 2023, the Company entered into a Standby Equity Purchase Agreement (the “

#### SEPA
”) with YA II PN, Ltd., a Cayman Islands exempt limited partnership (“

#### Yorkville
”), pursuant to which Yorkville agreed, subject to the conditions therein, to purchase from the Company shares of its Common Stock for a value of up to $50,000,000 of which $10,000,000 was to be advanced by Yorkville as evidenced by a promissory note (such advance, the “

#### Pre-Paid Advance
”). Furthermore, as previously disclosed by the Company in