Company: BLLN
Filing Date: 2025-10-17
Form Type: S-1/A
Source: 0001193125-25-242632
Chunk: 272

Company: BillionToOne, Inc.
Filing Date: 2025-10-17
Form: S-1/A
Chunk 272
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each non-employee director and the transactions involving them described in “Certain relationships and related party transactions.”

Board leadership structure

Our Board of Directors is currently chaired by
our Chief Executive Officer and Co-Founder, Dr. Atay. Our Board of Directors does not have a policy that requires the roles of Chief Executive Officer and Chairman of the Board to be separate. The Board
believes that Mr. Atay’s service as both Chief Executive Officer and Chairman of the Board is in the best interest of us and our stockholders.

Our
corporate governance guidelines, which will be in effect upon the effectiveness of the registration statement of which this prospectus forms a part, provide that, if the chairperson of our Board of Directors is not an independent director, the Board
will appoint an independent director as a lead independent director. Firat Ileri currently serves as our lead independent director. The lead independent director’s responsibilities include: facilitating communication between management, the
independent directors, and the Chairman of the Board; actively participating in setting agendas for Board meetings; presiding at executive sessions of the Board; and performing such other duties as specified by the Board. Our corporate governance
guidelines further provide that the Board periodically reviews its leadership structure and may separate or combine the roles of the Chairman of the Board and Chief Executive Officer when and if it deems it advisable and in the best interests of the
Company and its stockholders to do so.

Role of the board in risk oversight

One of the key functions of our Board of Directors is informed oversight of our risk management process. In particular, our Board of Directors is responsible for
monitoring and assessing strategic risk exposure. Our executive officers are responsible for the day-to-day management of the material risks we face. Our Board
of Directors administers its oversight function directly as a whole. Our Board of Directors will also administer its oversight through various standing committees that address risks inherent in their respective areas of oversight. For example, our
audit committee, which will be constituted prior to the completion of this offering, will be responsible for overseeing the management of risks associated with our financial reporting, accounting and auditing matters; our compensation committee
oversees the management of risks associated with our compensation policies and programs; and our full Board will oversee the management of risks associated with director independence, conflicts of interest, composition and organization of our Board
of Directors and director succession planning.

Board committees

Our
Board of Directors has established a compensation committee, and intends to establish an audit committee in connection with