Company: BLLN
Filing Date: 2025-08-11
Form Type: DRS/A
Source: 0000950123-25-007483
Chunk: 150

Company: BillionToOne, Inc.
Filing Date: 2025-08-11
Form: DRS/A
Chunk 150
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4 |       |     | $ Change |       |     | % Change |   |
|:-----------------------------------|:----|:----------------------|:--|:----|:-----|------:|:----|:---------|------:|:----|:---------|:--|
|                                    |     | -dollars in thousands |   |     |      |       |     |          |       |     |          |   |
| Net gain on extinguishment of debt |     | $                     | — |     | $    | 7,289 |     | $        | 7,289 |     |          | — |

Net gain on extinguishment of debt was $7.3 million for the year ended December 31, 2024. We did not record an extinguishment of debt for the year ended December 31, 2023. This was due to an $8.6 million gain on extinguishment of the 2022 Convertible Notes due to a modification of the class of preferred stock into which the 2022 Convertible Notes ultimately converted. This gain was partially offset by a $1.3 million loss on extinguishment of the Western Alliance Bank debt. 106

Change in fair value of term loan

|                                   |     | Year ended            
 December 31,          
 2023                  |   |     | 2024 |        |   |     | $ Change |        |   |     | % Change |    |
|:----------------------------------|:----|:----------------------|:--|:----|:-----|:-------|:--|:----|:---------|:-------|:--|:----|:---------|:---|
|                                   |     | -dollars in thousands |   |     |      |        |   |     |          |        |   |     |          |    |
| Change in fair value of term loan |     | $                     | — |     | $    | (3,137 | ) |     | $        | (3,137 | ) |     |          | —% |

Change in fair value of term loan decreased $3.1 million, for the year ended December 31, 2024 compared to the year ended December 31, 2023. The decrease was due to a change in fair value of the Oberland debt of $1.5 million in addition to the interest expenses associated with the Oberland debt of $1.6 million, which