Company: BLLN
Filing Date: 2025-09-17
Form Type: DRS/A
Source: 0001193125-25-206347
Chunk: 30

Company: BillionToOne, Inc.
Filing Date: 2025-09-17
Form: DRS/A
Chunk 30
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 earlier to occur of (1) the last day of the fiscal year (a) following the fifth anniversary of the completion of this offering, (b) in which our annual gross revenue is $1.235 billion or more, or (c) in which we are deemed to be a “large accelerated filer,” under the rules of the SEC, which means the market value of our equity securities that is held by non-affiliatesexceeds $700 million as of the prior June 30th, and (2) the date on which we have issued more than $1.0 billion in non-convertibledebt during the prior three-year period. We have elected to take advantage of the extended transition period to comply with new or revised accounting standards and to adopt certain of the reduced disclosure requirements available to emerging growth companies. As a result of the accounting standards election, we will not be subject to the same implementation timing for new or revised accounting standards as other public companies that are not emerging growth companies, which may make comparison of our financials to those of other public companies more difficult. In addition, the information that we provide in this prospectus may be different than the information you may receive from other public companies in which you hold equity interests. Further, it is possible that some investors will find our Class A common stock less attractive as a result of these elections, which may result in a less active trading market for our Class A common stock and higher volatility in our stock price.

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The offering

| Class A common stock offered by us | shares. |

| Option to purchase additional shares | We have granted the underwriters an option to purchase up to   additional shares of Class A common stock from us at any time within 30 days from the date of this prospectus. |

| Class A common stock to be outstanding immediately after this offering | shares (or   shares if the underwriters exercise their option to purchase additional shares of Class A common stock in full). |

| Class B common stock to be outstanding immediately after this offering | shares. |

| Total Class A and Class B common stock to be outstanding immediately after this offering | shares (or   shares if the underwriters exercise their option to purchase additional shares of Class A common stock in full). |

| Use of proceeds | We estimate the net proceeds from the sale of shares of our Class A common stock this offering will be approximately $   million, or $�