Company: BLLN
Filing Date: 2025-09-17
Form Type: DRS/A
Source: 0001193125-25-206347
Chunk: 298

Company: BillionToOne, Inc.
Filing Date: 2025-09-17
Form: DRS/A
Chunk 298
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 stockholders, to issue up to shares of undesignated preferred stock with rights and preferences, including voting rights, designated from time to time by our Board of Directors. The existence
of authorized but unissued shares of preferred stock would enable our Board of Directors to render more difficult or to discourage an attempt to obtain control of us by means of a merger, tender offer, proxy contest, or other means.

Stockholder meetings

Our
Post-IPO Bylaws will provide that, once our Class B common stock no longer represents a majority of voting power of our outstanding capital stock, a special meeting of stockholders may be called only by
our chairman of the Board of Directors, chief executive officer or president (in the absence of a chief executive officer), or by a resolution adopted by a majority of our Board of Directors.

Requirements for advance notice of stockholder nominations and proposals

Our Post-IPO Bylaws will establish advance notice procedures with respect to stockholders seeking to bring business before our
annual meeting of stockholders, or to nominate candidates for election as directors, other than nominations made by or at the direction of the Board of Directors, or a committee thereof. Our Post-IPO Bylaws
will also specify certain requirements regarding the form and content of a stockholder’s notice. These provisions may preclude our stockholders from bringing matters before our annual meeting of stockholders or from making nominations for
directors at our meetings of stockholders.

Stockholder action

Our Post-IPO Certificate of Incorporation and Post-IPO Bylaws will provide that, once our
Class B common stock no longer represents a majority of voting power of our outstanding capital stock, stockholders will not be able to take action by written consent, and will only be able to take action at annual or special meetings of our
stockholders.

Classified board

Our Board of Directors will be
divided into three classes. The directors in each class will serve for a three-year term, one class being elected each year by our stockholders. For more information on the classified board, see the section titled “Management—Board
composition.” This system of electing and removing directors may tend to discourage a third party from making a tender offer or otherwise attempting to obtain control of us, because it generally makes it more difficult for stockholders to
replace a majority of the directors.

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Removal of directors

Our Post-IPO Certificate of Incorporation will provide that, once our Class B common stock no longer represents a majority
of voting power of our outstanding