Company: BLLN
Filing Date: 2025-06-20
Form Type: DRS
Source: 0000950123-25-006095
Chunk: 300

Company: BillionToOne, Inc.
Filing Date: 2025-06-20
Form: DRS
Chunk 300
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                               |     | $       | - |     | $       | - |     | $       | 49,485 |     | $     | 49,485 |

F-17

B ILLIONT OO NE, INC. Notes to Financial Statements The fair value measurements of assets and liabilities that are measured at fair value on a recurring basis consisted of the following as of December 31, 2024 (in thousands):

| Current assets:                                 |     | Level 1 |       |     | Level 2 |   |     | Level 3 |        |     | Total |        |
|:------------------------------------------------|:----|:--------|------:|:----|:--------|:--|:----|:--------|-------:|:----|:------|-------:|
| Money market funds                              |     | $       | 7,538 |     | $       | - |     | $       |      - |     | $     |  7,538 |
| Total assets                                    |     | $       | 7,538 |     | $       | - |     | $       |      - |     | $     |  7,538 |
| Current liabilities:                            |     |         |       |     |         |   |     |         |        |     |       |        |
| Redeemable convertible preferred stock warrants |     | $       |     - |     | $       | - |     | $       |    230 |     | $     |    230 |
| Common stock warrants                           |     |         |     - |     |         | - |     |         |  2,533 |     |       |  2,533 |
| Term Loan                                       |     |         |     - |     |         | - |     |         | 51,481 |     |       | 51,481 |
| Total liabilities                               |     | $       |     - |     | $       | - |     | $       | 54,244 |     | $     | 54,244 |

Level 3 instruments consist of the Company’s Series A-6redeemable convertible preferred stock warrant liabilities, common stock warrant liabilities, a term loan and convertible notes. The fair values of the Series A-6redeemable convertible preferred stock warrant and common stock warrant are measured using a probability weighted option pricing model. The significant assumptions used in preparing the option pricing model for valuing