Company: BLLN
Filing Date: 2025-10-07
Form Type: S-1
Source: 0001193125-25-233697
Chunk: 387

Company: BillionToOne, Inc.
Filing Date: 2025-10-07
Form: S-1
Chunk 387
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591 |
| Balance at June 30, 2025     |     | $            | 2,470 |   |     | $               | 251 |     | $         | 52,072 |

For the six months ended June 30, 2024 and 2025, the Company recognized losses related to the change in the fair value of the common stock warrant liability and redeemable convertible preferred stock warrant liability in F-50

BILLIONTOONE, INC. Notes to Unaudited Interim Financial Statements other expense, net in the statements of operations and comprehensive loss. The Company will continue to recognize changes in the fair value of the common stock warrant liability and redeemable convertible preferred stock warrant liability until the warrants are exercised, expire, or qualify for equity classification. For the six months ended June 30, 2024, the Company recognized losses related to the change in the fair value of convertible notes in change in fair value of convertible notes in the statements of operations and comprehensive loss. During the six months ended June 30, 2024, the convertible notes were settled in Series C-1Redeemable Convertible Preferred Stock which was accounted for as a debt extinguishment as the settlement was not pursuant to the original conversion terms. The Company recorded a gain on extinguishment in net gain on extinguishment of debt in the statements of operations and comprehensive loss upon the conversion date (See Note 8). For the six months ended June 30, 2025, the Company recognized a loss related to the change in fair value of the term loan in change in fair value of term loan in the statements of operations and comprehensive loss. The common stock warrant liability and redeemable convertible preferred stock warrant liabilities are recorded within other non-currentliabilities on the balance sheets as of December 31, 2024 and June 30, 2025. The term loan is recorded within long-term debt on the balance sheet as of December 31, 2024, and June 30, 2025. The Company recognizes transfers among Level 1, Level 2 and Level 3 classifications as of the actual date of the events or change in circumstances that caused the transfers. During the six months ended June 30, 2024 and 2025, the Company had no transfers of financial assets or liabilities between different levels of the fair value hierarchy. (4) Property and Equipment, Net Property and equipment, net consisted of the following (in thousands):

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