Company: QTIWW
Filing Date: 2025-12-31
Form Type: 424B3
Source: 0001628280-25-059235
Chunk: 1

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-31
Form: 424B3
Chunk 1
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 range by the Company’s board of directors (the “

#### Board
”) in its sole discretion without further stockholder approval (the “

#### Reverse Stock Split
”). On October 17, 2025, the Board determined to fix the Reverse Stock Split ratio at 3:1. The Reverse Stock Split became effective as of 4:01 p.m., Eastern Time, on October 23, 2025 (the “

#### Effective Time
”), upon the filing of the Certificate of Amendment with the Secretary of State of the State of Delaware.

On February 26, 2025, the Company entered into a credit agreement (the “

#### Credit Agreement
”) with Lynrock Lake that provided a senior secured term loan with Lynrock Lake in the aggregate principal amount of $10,100,000 at an interest rate of 10.0% per annum. On August 26, 2025, the Company and Lynrock Lake entered into the First Amendment to the Credit Agreement (the “

#### Amended Credit Agreement
”) to add an additional tranche of $5,000,000 to the loan and increase the aggregate principal amount to $15,100,000. In connection with the Credit Agreement, the Company and Lynrock Lake entered into a Warrant Agreement, dated February 26, 2025, as amended (the “

#### Warrant Agreement
”), pursuant to which Lynrock Lake holds a warrant, which prior to the implementation of the Reverse Stock Split, was a warrant to purchase 61,000,000 shares of Common Stock at an exercise price of $0.40 per share (the “

#### Lynrock Lake Warrant
”), which since the Effective Time, both the number of shares to be issued upon exercise of the Lynrock Lake Warrant and the exercise price have been adjusted to 20,333,623 and $1.20, respectively.

On April 9, 2025, the Company completed a private placement (the “

#### First Private Placement
”), pursuant to the terms and conditions of the Securities Purchase Agreement, dated April 9, 2025 (the “

#### First Securities Purchase Agreement
”), by and between the Company and Dr. Avi Katz, the Chairman of the Company’s Board of Directors, and Dr. Raluca Dinu, the Chief Executive Officer and a member of the Company’s Board of Directors, on the other hand, (together, the “

#### First Purchasers
”), pursuant to which