Company: QTIWW
Filing Date: 2025-02-05
Form Type: 424B3
Source: 0001628280-25-004061
Chunk: 421

Company: QT IMAGING HOLDINGS, INC.
Filing Date: 2025-02-05
Form: 424B3
Chunk 421
---
 |     |                  |   |     |
| Terminated pursuant to Business Combination Agreement |     |           | -1,237,681 |     | $              | 24.83 |     |                  |   |     |
| Outstanding, September 30, 2024                       |     |           |  2,072,000 |     | $              |  0.74 |     |                  |   | 9.8 |
| Exercisable as of September 30, 2024                  |     |           |          — |     | $              |     — |     |                  | — |     |
| Vested and expected to vest as of September 30, 2024  |     |           |  2,072,000 |     | $              |  0.74 |     |                  |   | 9.8 |

During the three and nine months ended September 30, 2024, a total of 2,072,000 options were granted to employees and nonemployees with a weighted-average grant date fair value of $0.47 per share. There were no options granted during three and nine months ended September 30, 2023.

The determination of the fair value of options granted during the three and nine months ended September 30, 2024 is computed using the Black-Scholes option pricing model with the following weighted-average assumptions:

| Stock price per share          |     | $ | 0.74 |     |
| Expected option term (years)   |     |   |      | 5.7 |
| Expected volatility            |     |   | 67.9 |   % |
| Risk-free rate of return       |     |   |  4.3 |   % |
| Expected annual dividend yield |     |   |    — |   % |

Option pricing models require the input of various subjective assumptions, including the option’s expected life and the price volatility of the underlying stock. The expected stock price volatility is based on the analysis of volatilities of the Company’s selected public peer group over a period commensurate with the expected term of the options. The expected term of employee options represents the weighted-average period the options are expected to remain outstanding and was derived using the simplified method for awards that qualify for its “plain-vanilla” options. All awards that are outstanding are qualified for “plain-vanilla” options. The risk-free interest rate is based on the U.S.