Company: BLLN
Filing Date: 2025-08-11
Form Type: DRS/A
Source: 0000950123-25-007483
Chunk: 348

Company: BillionToOne, Inc.
Filing Date: 2025-08-11
Form: DRS/A
Chunk 348
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4 was $1.2 million and $4.7 million, respectively. During the year ended December 31, 2023, the weighted average grant-date fair value of options granted was $7.75 per share, and the fair value of options vested during the period was $4.4 million. During the year ended December 31, 2024, the weighted average grant-date fair value of options granted was $10.89 per share, and the fair value of options vested during the period was $7.2 million. The fair value is being expensed over the vesting period of the options, on a straight-line basis as the services are being provided. As of December 31, 2024 there was approximately $22.2 million of total unrecognized compensation cost related to unvested options, which is expected to be recognized over the weighted average period of 2.6 years. F-32

B ILLIONT OO NE, INC. Notes to Financial Statements Restricted Stock Award Activity A summary of the Company’s restricted stock award activity and related information is as follows:

|                                   |     | Awards |         |   |     | Weighted-       
 Average Grant   
 Date Fair Value 
 (per share)     |      |
|:----------------------------------|:----|:-------|--------:|:--|:----|:----------------|-----:|
| Nonvested as of January 1, 2023   |     |        |  14,584 |   |     | $               | 0.35 |
| Issued                            |     |        |       - |   |     |                 |    - |
| Vested                            |     |        | (14,584 | ) |     |                 | 0.35 |
| Forfeited                         |     |        |       - |   |     |                 |    - |
| Nonvested as of December 31, 2023 |     |        |       - |   |     |                 |    - |

There was no restricted stock award activity during the year ended December 31, 2024. Stock-Based Compensation Expense The table below shows stock-based compensation expense included in the statements of operations and comprehensive loss for the years ended December 31, 2023 and 2024 (in thousands):

|                                     |     |   |  2023 |     |   |  2024 |
|:------------------------------------|:----|:--|------:|: