Company: BLLN
Filing Date: 2025-09-17
Form Type: DRS/A
Source: 0001193125-25-206347
Chunk: 268

Company: BillionToOne, Inc.
Filing Date: 2025-09-17
Form: DRS/A
Chunk 268
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; and |

| • |     | review related party transactions. |

Our audit committee will operate under a written charter that satisfies the applicable rules of the SEC and the listing standards of Nasdaq. Compensation committee Our compensation committee consists of Tom Bremner, Krishna Swaroop Kolluri and Firat Ileri, with Mr. Kolluri serving as the chairperson, and each of whom our Board of Directors will determine is a non-employeemember of our Board of Directors as defined in Rule 16b-3under the Exchange Act. The composition of our compensation committee will meet the requirements for independence under the current listing standards of Nasdaq and current SEC rules and regulations. Our compensation committee will, among other things:

| • |     | review and approve (or recommend to independent members of our Board of Directors) executive officer compensatory 
 arrangements and succession plans, and ensure compliance with all legal and regulatory requirements;              |

| • |     | review and recommend to our Board of Directors the compensation to be paid to 
 non-employee members of the Board of Directors;                               |

| • |     | review, approve, and administer our employee benefit and equity incentive plans; |

| • |     | administer our policy for the recovery of erroneously awarded compensation; |

| • |     | review and establish general compensation and benefits policies, as well as our overall compensation philosophy; and |

| • |     | retain compensation consultants and other advisors. |

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Our compensation committee will operate under a written charter that satisfies the applicable rules of the SEC and the listing standards of Nasdaq. Nominating and corporate governance committee Upon effectiveness of the registration statement of which this prospectus forms a part, our nominating and corporate governance committee will consist of , , and , with serving as the chairperson. The composition of our nominating and governance committee will meet the requirements for independence under the current listing standards of Nasdaq and current SEC rules and regulations. Our nominating and corporate governance committee will, among other things:

| • |     | identify and evaluate candidates to serve on our Board of Directors and its committees; |

| • |     | facilitate the annual performance review of our Board of Directors and its committees; |

| • |     | make recommendations regarding our Board of Directors and committee composition; |

| • |     | review and evaluate any stockholder nominees for director submitted in accordance with Company policies and procedures; |

| • |     | periodically review our code of conduct; |

| • |     | review