Company: QTIWW
Filing Date: 2025-12-31
Form Type: 424B3
Source: 0001628280-25-059235
Chunk: 364

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-12-31
Form: 424B3
Chunk 364
---
 shares(1)               |     |  2,000,000 |
| Options outstanding under the 2024 Incentive Plan(1) |     |    739,645 |
| Options available under the 2024 Incentive Plan(1)   |     |     46,386 |
| Potential shares from Cable Car Loan(1)              |     |    250,000 |
| Potential shares from convertible notes(1)           |     |     84,400 |
|                                                      |     | 18,205,700 |

<div align='center'>F-33</div>

#### QT IMAGING HOLDINGS, INC.

### Notes to Consolidated Financial Statements
__________________

(1) Amounts as of December 31, 2024 differ from those published in prior consolidated financial statements as they were retrospectively adjusted as a result of the Reverse Stock Split (as described below in Note 1, The Company and Summary of Significant Accounting Policies). Specifically, the number of common shares outstanding during periods before the Reverse Stock Split are divided by the exchange ratio of 3:1, such that each three shares of common stock were combined and reconstituted into one share of common stock effective October 23, 2025.

#### Preferred Stock
The Company is authorized to issue 10,000,000 shares of preferred stock, with a par value of $0.0001, with such designations, voting and other rights and preferences as may be determined from time to time by the Board of Directors. As of December 31, 2024 and 2023, there were no shares of preferred stock issued and outstanding. The Board has the authority to issue shares of preferred stock from time to time on terms it may determine, to divide shares of preferred stock into one or more series and to fix the designations, preferences, privileges, and restrictions of preferred stock, including dividend rights, conversion rights, voting rights, terms of redemption, liquidation preference, sinking fund terms, and the number of shares constituting any series or the designation of any series to the fullest extent permitted by the Delaware General Corporation Law. The issuance of preferred stock could have the effect of decreasing the trading price of common stock, restricting dividends on the capital stock of the Company, diluting the voting power of the common stock, impairing the liquidation rights of the capital stock of the Company, or delaying or preventing a change in control of the Company.

#### QT Imaging Private Placement Warrants
In November