Company: PFSA
Filing Date: 2025-05-09
Form Type: S-4/A
Source: 0001213900-25-041151
Chunk: 577

Company: Profusa, Inc.
Filing Date: 2025-05-09
Form: S-4/A
Chunk 577
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 Convertible Notes, and have an 18 -monthmaturity, which will be accelerated and converted into New Profusa shares upon the successful closing of the business combination. As of December31, 2024, the outstanding balance of senior notes totaled $25.3million, of which $9.5million is outstanding with related parties and $15.8million is outstanding with unrelated parties. The annual effective interest rate of Senior Notes was estimated from 0% to 12.15% and 0% to 12.55% per year for the years ended December 31, 2024 and 2023, respectively. The interest expense was $2.1 million and $1.8 million for the years ended December 31, 2024 and 2023. As of December 31, 2024, future minimum payments for the convertible notes payable were as follows (in thousands):

|                                                 |     | Convertible 
 Notes       |        |   |     | Tasly       
 Convertible 
 Debt        |       |   |     | Senior 
 Notes  |        |   |
|:------------------------------------------------|:----|:------------|-------:|:--|:----|:------------|------:|:--|:----|:-------|-------:|:--|
| Total future principal payments                 |     | $           | 19,533 |   |     | $           | 1,998 |   |     | $      | 24,396 |   |
| Add: fair value remeasurement                   |     |             |      — |   |     |             |   333 |   |     |        |      — |   |
| Add (less): unamortized debt (premium) discount |     |             |     (2 | ) |     |             |     — |   |     |        |  2,055 |   |
| Less: interest                                  |     |             | (1,112 | ) |     |             |   (97 | ) |     |        | (1,183 | ) |
| Total convertible notes payable                 |     | $           | 18,419 |   |     | $           | 2,234 |   |     | $      | 25,268 |   |

F-46

PROFUSA, INC. AND SUBSIDIARY
NOTES TO THE CONSOLIDATED FINANCIAL STATEMENTS Note 5 — Debt (cont.) Prom