Company: BLLN
Filing Date: 2025-06-20
Form Type: DRS
Source: 0000950123-25-006095
Chunk: 307

Company: BillionToOne, Inc.
Filing Date: 2025-06-20
Form: DRS
Chunk 307
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U asset and lease liability were remeasured at the modification date. The remeasurement of the lease resulted in an increase in both the operating ROU asset and the operating lease liability of approximately $0.6 million. In April 2024, the Company entered into a lease agreement for premises to be constructed in Austin, TX. The lease is expected to commence prior to December 31, 2026 at an initial rental rate of $12.3 million per year. The lease agreement includes annual rent increases of 3% and is for a term of fifteen years and nine months. The agreement also includes a seven-year extension option that can be exercised by the Company. As part of the lease agreement, the Company remitted to the landlord $2.0 million in respect of a security deposit and $1.0 million in respect of the first month’s rent payment, which were recorded in other non-currentassets on the balance sheet for the year ended December 31, 2024 The Company’s operating lease costs were $5.5 million and $9.4 million during the years ended December 31, 2023 and 2024, respectively. The Company’s variable lease expense totaled $3.2 million and $4.4 million for the years ended December 31, 2023 and 2024, respectively. The Company did not have any material short-term lease costs during the years ended December 31, 2023 and 2024. Other information related to the Company’s operating leases were as follows for the years ended December 31 (in thousands):

|                                                                                                   |     |   |  2023 |     |   |  2024 |
|:--------------------------------------------------------------------------------------------------|:----|:--|------:|:----|:--|------:|
| Cash paid for amounts included in the measurement of operating lease liabilities within operating 
 cash flows                                                                                        |     | $ | 4,872 |     | $ | 8,516 |

As of December 31, 2023 and 2024, the weighted average remaining operating lease term was 8.8 years and 7.8 years, respectively. As of December 31, 2023 and 2024, the weighted average discount rate used to estimate operating lease liabilities was 8.4% and 8.4%, respectively. F-24

B ILLIONT OO NE, INC. Notes to Financial Statements As of December 31, 2024, future lease payments