Company: BLLN
Filing Date: 2025-09-17
Form Type: DRS/A
Source: 0001193125-25-206347
Chunk: 266

Company: BillionToOne, Inc.
Filing Date: 2025-09-17
Form: DRS/A
Chunk 266
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 obligations regarding the election of our directors. Director independence Our Board of Directors has undertaken a review of the independence of the directors and considered whether any director has a material relationship with us that could compromise his or her ability to exercise independent judgment in carrying out his or her responsibilities. Based upon information requested from and provided by each director concerning such director’s background, employment and affiliations, including family relationships, our Board of Directors determined that , representing of our directors, are 195

“independent directors” as defined under current rules and regulations of the SEC and the listing standards of the Nasdaq Global Market (Nasdaq). In making these determinations, our
Board considered the current and prior relationships that each non-employee director has with our company and all other facts and circumstances that our Board deemed relevant in determining their independence,
including the beneficial ownership of our capital stock by 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. 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