Company: BLLN
Filing Date: 2025-09-17
Form Type: DRS/A
Source: 0001193125-25-206347
Chunk: 29

Company: BillionToOne, Inc.
Filing Date: 2025-09-17
Form: DRS/A
Chunk 29
---
 Our principal executive offices are located at 1035 O’Brien Drive, Menlo Park, CA 94025. Our telephone number is (650) 460-2551.Our website address is www.billiontoone.com. The information contained on, or that can be accessed through, our website is not incorporated by reference into this prospectus, and you should not consider any information contained on, or that can be accessed through, our website as part of this prospectus.

11

“BillionToOne” and the BillionToOne logo, UNITY Complete, Northstar Select, Northstar Response, UNITY Screen (registered in the EU and UK), Quantitative Counting Templates, QCTs, UNITY Fetal Risk, UNITY Aneuploidy, UNITY Fetal Antigen, Tumor Methylation Score, and other trademarks or service marks of BillionToOne, Inc. appearing in this prospectus are the property of BillionToOne, Inc. This prospectus contains additional trade names, trademarks, and service marks of others, which are the property of their respective owners. Solely for convenience, trademarks and trade names referred to in this prospectus may appear without the ®or ™symbols. Implications of being an emerging growth company We qualify as an “emerging growth company” as defined in the Jumpstart Our Business Startups Act of 2012 (the JOBS Act). An emerging growth company may take advantage of specified reduced reporting and other burdens that are otherwise applicable generally to public companies. These provisions include:

| • |     | a requirement to have only two years of audited financial statements and only two years of related selected financial data 
 and management’s discussion and analysis of financial condition and results of operations disclosure in this prospectus;   |

| • |     | an exemption from the auditor attestation requirement in the assessment of our internal control over financial reporting 
 pursuant to Section 404 of the Sarbanes-Oxley Act of 2002;                                                               |

| • |     | an exemption from implementation of new or revised financial accounting standards until they would apply to private                                       
 companies and from compliance with any new requirements adopted by the Public Company Accounting Oversight Board requiring mandatory audit firm rotation; |

| • |     | reduced disclosure obligations regarding executive compensation arrangements; and |

| • |     | no requirement to seek nonbinding advisory votes on executive compensation or golden parachute arrangements. |

We may take advantage of some or all these provisions until we are no longer an emerging growth company. We will remain an emerging growth company until the