Company: BLLN
Filing Date: 2025-10-07
Form Type: S-1
Source: 0001193125-25-233697
Chunk: 320

Company: BillionToOne, Inc.
Filing Date: 2025-10-07
Form: S-1
Chunk 320
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 as part of a sale of lock-up securities acquired (A) from underwriters in
this offering or (B) in open market transactions after the completion of this offering, (x) to us in connection with the vesting, settlement, or exercise of restricted stock units, options, warrants or other rights to purchase shares of
our common stock (including, in each case, by way of “net” or “cashless” exercise), including for the payment of exercise price, tax or remittance payments due as a result of the vesting, settlement, or exercise of such
restricted stock units, options, warrants or rights, provided that any such shares of our common stock received upon such exercise, vesting or settlement shall be subject to the terms of such lock-up
agreement, and provided

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further that any such restricted stock units, options, warrants or rights are held by the lock-up party pursuant to an agreement or equity awards granted
under a stock incentive plan or other equity award plan, each such agreement or plan which is described in this prospectus, (xi) in “sell to cover” or similar open market transactions by an employee of the Company (who is not a
Section 16 officer or director of the Company) of up to $10 million of shares of common stock (in the aggregate for all employees) during the restricted period to satisfy tax withholding obligations as a result of the exercise, vesting
and/or settlement of equity awards (including options) held by the lock-up party and issued pursuant to a plan or arrangement described in this prospectus, or (xii) pursuant to a bona fide third-party
tender offer, merger, consolidation or other similar transaction approved by our Board of Directors and made to all holders of our capital stock involving a change of control (the transfer (whether by tender offer, merger, consolidation or other
similar transaction), in one transaction or a series of related transactions, to a person or group of affiliated persons, of shares of capital stock if, after such transfer, such person or group of affiliated persons would hold more than 90% of our
outstanding voting securities (or the surviving entity)), provided that in the event that such tender offer, merger, consolidation or other similar transaction is not completed, all such lock-up securities
shall remain subject to the restrictions in the immediately preceding paragraph; (b) the exercise of outstanding options, settlement of restricted stock units or other equity awards or exercise of warrants pursuant to plans described in this