Company: PFSA
Filing Date: 2025-10-09
Form Type: S-1
Source: 0001213900-25-097860
Chunk: 400

Company: Profusa, Inc.
Filing Date: 2025-10-09
Form: S-1
Chunk 400
---
 Company estimates
the volatility of its common stock based on historical volatility that matches the expected remaining life of the warrants. The risk-free
interest rate is based on the U.S. Treasury zero-coupon yield curve on the grant date for a maturity similar to the expected remaining
life of the warrants. The expected life of the warrants is assumed to be equivalent to their remaining contractual term.

The key inputs into the Monte
Carlo simulation model for the warrant liabilities were as follows at June 30, 2025 and December 31, 2024:

|                            |     |   | June 30, 
     2025 |   |     |   | December 31, 
         2024 |   |
|:---------------------------|:----|:--|---------:|:--|:----|:--|-------------:|:--|
| Input                      |     |   |          |   |     |   |              |   |
| Risk-free interest rate    |     |   |     4.22 | % |     |   |         4.18 | % |
| Expected term (years)      |     |   |     0.61 |   |     |   |         0.89 |   |
| Expected volatility        |     |   |       De 
  minimis | % |     |   |           De 
      minimis | % |
| Exercise price             |     | $ |    11.50 |   |     | $ |        11.50 |   |
| Fair value of Common stock |     | $ |    12.52 |   |     | $ |        12.12 |   |

The key inputs into the Monte
Carlo simulation model for the convertible promissory note were as follows at June 30, 2025 and December 31, 2024:

|                            |     |   | June 30, 
     2025 |   |     |   | December 31, 
         2024 |   |
|:---------------------------|:----|:--|---------:|:--|:----|:--|-------------:|:--|
| Input                      |     |   |          |   |     |   |              |   |
| Risk-free interest rate    |     |   |     4.28 | % |     |   |         4.18 | % |
| Expected term (years)      |