Company: BLLN
Filing Date: 2025-09-17
Form Type: DRS/A
Source: 0001193125-25-206347
Chunk: 293

Company: BillionToOne, Inc.
Filing Date: 2025-09-17
Form: DRS/A
Chunk 293
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 titled “Dividend policy” for more information. Voting rights Holders of our Class A common stock will be entitled to one vote and holders of our Class B common stock will be entitled to 10 votes for each share held on all matters submitted to a vote of stockholders. The holders of our Class A common stock and Class B common stock will vote together as a single class, unless otherwise required by law or our Post-IPOCertificate of Incorporation. Delaware law could require either holders of our Class A common stock or Class B common stock to vote separately as a single class in the following circumstances:

| • |     | if we were to seek to amend our Post-IPO Certificate of Incorporation to increase                                                                      
 or decrease the par value of a class of our capital stock, then that class would be required to vote separately to approve the proposed amendment; and |

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| • |     | if we were to seek to amend our Post-IPO Certificate of Incorporation in a manner                                                                                                                                                          
 that alters or changes the powers, preferences, or special rights of a class of our capital stock in a manner that affected its holders adversely, then that class would be required to vote separately to approve the proposed amendment. |

The holders of our Class A common stock and our Class B common stock will not have cumulative voting rights in the election of directors. Conversion rights Holders of our Class A common stock will have no conversion rights. Each outstanding share of our Class B common stock will be convertible at any time at the option of the holder into one share of our Class A common stock. In addition, each share of our Class B common stock will convert automatically into one share of our Class A common stock upon any transfer, whether or not for value, which occurs after the completion of this offering, except for certain permitted transfers set forth in our Post-IPOCertificate of Incorporation, including . Once converted into our Class A common stock, such Class B common stock will not be reissued. In addition, each share of Class B common stock held by a Founder and such Founder’s permitted transferees will automatically convert into one share of Class A common stock upon the earlier of (i) the date that is between 90 days and 270 days, as determined by the board of directors, after the death or incapacitation of such Founder or (ii) the date that is between 61 and 180 days, as determined by the board of directors, after the date on which such Founder is no longer serving as an officer or director of the