Company: BLLN
Filing Date: 2025-10-07
Form Type: S-1
Source: 0001193125-25-233697
Chunk: 260

Company: BillionToOne, Inc.
Filing Date: 2025-10-07
Form: S-1
Chunk 260
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 additional five years.

To
support our planned growth, we have also entered into a lease for a new facility with 220,000 square feet of office and custom laboratory space located in Austin, Texas, expected to commence on or before December 31, 2026, and expiring in
October 2042, with an option to extend for an additional seven years. Once the facility is fully utilized, we expect our potential testing capacity to be nearly triple our current capabilities. We also have commercial leases for patient service
centers in various cities, for an aggregate of approximately 8,000 square feet as of June 30, 2025. We expect to enter into additional leases for patient service centers in the ordinary course.

We believe that our current facilities are adequate to meet our current needs and that, should it be needed, suitable additional or alternative space will be available
to accommodate our operations.

Legal Proceedings

From time to time, we
are involved in legal claims, regulatory investigations, inquiries, proceedings and other legal matters arising from the normal course of business and typical for our industry. Although no formal legal proceeding has been instituted, from time to
time, we receive requests from governmental agencies, or third parties working on their behalf, for documents and information related to our products. We do not view any of the legal claims, regulatory investigations, inquiries, proceedings and
other legal matters that we are currently subject to as being material to our business; however, it is difficult to assess the outcome of these matters, and we may not prevail in any current or future proceedings or litigation.

Litigation or any other legal, regulatory or administrative proceedings, regardless of the outcome, can result in substantial cost and diversion of our resources,
including our management’s time and attention, and there can be no assurances that favorable final outcomes will be obtained. For additional information on risks relating to legal proceedings, see the section titled “Risk
Factors—Risks Related to Our Business and Strategy—We are involved in legal proceedings, regulatory investigations and inquiries and other legal matters, which may have an adverse effect on our business, financial condition, results of
operations and prospects.”

194

Management

Management Executive officers and directors The following table sets forth certain information with respect to our executive officers and directors, including their ages as of October 1, 2025:

| Name                                      |     | Age |    |     | Position(s)                                              |
| Executive officers and employee directors |     |     |    |     |                                                          |
| Oguzhan