Company: BLLN
Filing Date: 2025-10-17
Form Type: S-1/A
Source: 0001193125-25-242632
Chunk: 30

Company: BillionToOne, Inc.
Filing Date: 2025-10-17
Form: S-1/A
Chunk 30
---
 our competitive position. |

| • |     | We have identified material weaknesses in our internal control over financial reporting. If our remediation of such                                                                                                                                      
 material weaknesses is not effective, or if we identify additional material weaknesses in the future or otherwise fail to develop and maintain effective internal control over financial reporting, our ability to produce timely and accurate financial 
 statements or comply with applicable laws and regulations could be impaired.                                                                                                                                                                             |

The summary risk factors described above should be read together with the text of the full risk factors in the section titled “Risk factors” and the other information set forth in this prospectus, including our financial statements and the related notes. The risks summarized above or described in full elsewhere in this prospectus are not the only risks that we face. Additional risks and uncertainties not presently known to us, or that we currently deem to be immaterial, may also materially adversely affect our business, financial condition, results of operations, and future growth prospects. Channels for disclosure of information Following the closing of this offering, in addition to filings with the Securities and Exchange Commission (SEC), we intend to announce material information to the public via the investor relations page on our website, press releases, public conference calls, public webcasts, our X handle (@BillionToOneInc) and our LinkedIn feed. Any updates to the list of disclosure channels through which we will announce information will be posted on the investor relations page on our website. Corporate and other information We commenced operations in 2016 as a Delaware corporation. 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. “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