Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 15

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 15
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 Market LLC during regular trading hours as reported by Bloomberg L.P. During the commitment period, Yorkville may also deliver its written notice to QT Imaging Holdings (an “

#### Investor Notice
”) causing an Advance Notice to be deemed delivered to Yorkville. In this case, the Common Stock purchased pursuant to such Investor Notice will be purchased at a price equal to the lower of (i) the Fixed Price (as defined below), or (ii) 95% of the lowest daily VWAP of the Common Stock during the five consecutive trading days commencing on the immediately preceding date Yorkville submits an Investor Notice pursuant to and as defined in the SEPA, provided that such price shall not be lower than the Floor Price (as defined below) then in effect.

As consideration for a Pre-Paid Advance of $10.0 million, in connection with the Closing, the Company issued to Yorkville a promissory note (the “

#### Yorkville Note
”), which was issued with a 6% original issue discount. The proceeds from the funding of the Pre-Paid Advance may not be used by the Company to make any payments in respect of any notes to GigAcquisitions5, LLC ("GigAcquisitions5") or any indebtedness to Dr. John Klock; provided, however, that nothing will preclude the Company from making payments in respect of notes to GigAcquisitions5 or notes to affiliates of Dr. Avi S. Katz from the proceeds of other sources of capital that the Company has while a Pre-Paid Advance is outstanding.

As originally issued, the Yorkville Note for the Pre-Paid Advance was 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 shall be convertible by Yorkville into shares of Common Stock at the Conversion Price (as defined below). The number of shares of Common Stock issuable upon conversion of any amount of principal being converted (the “

#### Conversion Amount
”) shall be determined by dividing (x) such Conversion Amount by (y) the Conversion Price. The “

#### Conversion Price
” is the lower of (a) 110% of the daily VWAP of the Common Stock on Nasdaq as of the trading day immediately prior to the issuance of the Yorkville Note, which is $4.61395 (the “

####