Company: BLLN
Filing Date: 2025-09-17
Form Type: DRS/A
Source: 0001193125-25-206347
Chunk: 294

Company: BillionToOne, Inc.
Filing Date: 2025-09-17
Form: DRS/A
Chunk 294
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 Company. All of the outstanding shares of our Class B common stock will convert automatically on a one-for-onebasis into shares of our Class A common stock upon the earliest of (i) seven years from the date of filing the Post-IPOCertificate of Incorporation, and (ii) the date specified by a vote of the holders of Class B common stock representing a majority of the outstanding shares of Class B common stock. Following the conversion of all outstanding shares of our Class B common stock into Class A common stock, no further shares of our Class B common stock will be issued. Right to receive liquidation distributions Upon our dissolution, liquidation or winding-up,the assets legally available for distribution to our stockholders are distributable ratably among the holders of our Class A common stock and our Class B common stock, subject to prior satisfaction of all outstanding debt and liabilities and the preferential rights and payment of liquidation preferences, if any, on any outstanding shares of preferred stock. No preemptive or similar rights Our shares of common stock are not entitled to preemptive rights and are not subject to conversion, redemption or sinking fund provisions (except, in respect of our Class B common stock, for the conversion rights noted above). The rights, preferences, and privileges of the holders of our common stock will be subject to and may be adversely affected by the rights of the holders of shares of any series of our preferred stock that we may designate in the future. Preferred stock As of June 30, 2025, there were 29,084,235 shares of our redeemable convertible preferred stock outstanding. Immediately prior to the completion of this offering, each outstanding share of redeemable convertible preferred stock will convert into one share of our common stock pursuant to the Preferred Stock Conversion. 218

Upon the filing and effectiveness of our Post-IPO Certificate of
Incorporation, our Board of Directors may, without further action by our stockholders, fix the rights, preferences, privileges, and restrictions of up to an aggregate of shares of preferred stock in one or more series and
authorize their issuance. These rights, preferences, and privileges could include dividend rights, conversion rights, voting rights, terms of redemption, liquidation preferences, sinking fund terms, and the number of shares constituting any series
or the designation of such series, any or all of which may be greater than the rights of our common stock. The issuance of our preferred stock could adversely affect the voting power of holders of our common stock, and the likelihood that such
holders will receive