Company: BLLN
Filing Date: 2025-06-20
Form Type: DRS
Source: 0000950123-25-006095
Chunk: 227

Company: BillionToOne, Inc.
Filing Date: 2025-06-20
Form: DRS
Chunk 227
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 If our Board of Directors amends our 2025 Plan, it does not need stockholder approval
of the amendment unless required by applicable law, regulation or rules. Our 2025 Plan will terminate automatically 10 years after the later of the date when our Board of Directors adopted our 2025 Plan or approved the latest share increase that was
also approved by our stockholders.

2018 stock plan

Our Board of
Directors adopted and our stockholders approved our 2018 Plan in December 2018. After completion of this offering, no further awards will be made under the 2018 Plan and the outstanding awards will continue to be governed by their existing terms,
except that our Class A common stock will be the class of stock underlying the outstanding awards. In addition, we will make adjustments to the number of shares and the exercise price per share underlying outstanding awards to reflect changes
made to our capital structure in connection with this offering. This summary, however, is not intended to be a complete description of the 2018 Plan and is qualified in its entirety by reference to the complete text of the 2018 Plan, which is filed
as an exhibit to the registration statement of which this prospectus is a part. To the extent there is a conflict between the terms of this summary and the 2018 Plan, the terms of the 2018 Plan will control.

Types of awards

The 2018 Plan provides for the grant of incentive stock
options, or ISOs, nonstatutory stock options, or NSOs, and awards of restricted stock (collectively, stock awards). ISOs may be granted only to our employees, but not employees of our affiliates. All other awards may be granted to our employees, our
non-employee directors and consultants and the employees and consultants of our affiliates.

Share reserve

As of December 31, 2024, we have reserved 10,904,372 shares of our common stock for issuance under the 2018 Plan, all of which may be issued as incentive stock
options. Unissued shares subject to awards that expire or become unexercisable without being exercised in full or are surrendered pursuant to an option exchange program and shares that are forfeited, cancelled, reacquired by us or withheld in
payment of the purchase price or exercise price of an award or in satisfaction of withholding taxes will again become available for issuance under the 2018 Plan or, following completion of this offering, under the 2025 Plan.

Administration

Our Board