Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 356

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 356
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,231,574 |

The determination of the fair value of warrants to purchase common stock issued during the years ended December 31, 2023 and 2022 is computed using the Black-Scholes option pricing model with the following weighted-average assumptions:

|                                |     | 2023 |      |     |     | 2022 |      |     |
| Expected warrant term (years)  |     |      |      | 5.0 |     |      |      | 5.6 |
| Expected volatility            |     |      | 60.2 |   % |     |      | 62.3 |   % |
| Risk-free rate of return       |     |      |  4.0 |   % |     |      |  3.6 |   % |
| Expected annual dividend yield |     |      |      |   — |     |      |      |   — |

The fair value of warrants issued as part of the 2022 Offering and included in stockholders’ deficit in the consolidated balance sheets was $462,413 and $404,888 for the years ended December 31, 2023 and 2022, respectively. The fair value of the warrants granted to USCG in connection with the convertible debt described in Note 6. Long-Term Debt, which was included as part of debt issuance costs, was $15,317 and $5,066 for the years ended December 31, 2023 and 2022, respectively. The fair value warrants granted in exchange for services was $0 and $108,100 the years ended December 31, 2023 and 2022, respectively, and was included in selling, general and administrative expenses on the consolidated statements of operations and comprehensive loss. The fair value of the remaining warrants granted during the year ended December 31, 2023 to USCG and US Capital in connection with the Fourth Amendment was $156,505.

Subsequent to December 31, 2023 and pursuant to the terms of the Business Combination Agreement, the Company cancelled and terminated all outstanding warrants that were deemed out of the money, which included all warrants with an exercise price of $4.00 or above per warrant.

#### 10.

#### Stock Incentive Plan
In September 2021, the Board of Directors approved and the Company adopted the Plan (the “Plan”). The maximum aggregate number of shares of common stock that the Company may award under the Plan is 7,000