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$BLLN All transactions

BillionToOne, Inc.

J

$ Value

Shares

640,000

Price

Filed

Nov 12

Insider

Name

Tsao David

Title

Chief Technology Officer

CIK

0002087127

Roles

Director Officer

Transaction Details

Transaction Date

2025-11-07

Code

J

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

640,000

Footnotes

Pursuant to a reclassification exempt under Rule 16b-7, each share of Common Stock was automatically reclassified into one share of Class A common stock immediately prior to the completion of the Issuer's initial public offering of Class A common stock (the "Offering"). | Following the reclassification of Common Stock into Class A Common Stock, the shares of Class A common stock were exchanged at a 1:1 ratio for shares of Class B common stock in a transaction previously approved by the Issuer's board of directors. | These shares of Class A common stock were purchased by the Reporting Person through a directed share program in connection with the Offering. | Each share of Class B Common Stock is convertible into one share of Class A common stock at the option of the holder. Class B common stock will convert automatically on a one-for-one basis into shares of the Issuer's Class A common stock upon the earliest of (i) seven years from the date of filing of the amended and restated certificate of incorporation, in connection with the Offering 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. | The options are fully vested and exercisable. | The options are subject to a service-based vesting requirement, which shall be satisfied over a six-year period. The options vest and become exercisable in equal monthly installments commencing on June 11, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date.

Filing Info

Accession No.

0001193125-25-278138

Form Type

4

Issuer CIK

0002070849

Tsao David's History

Date Ticker Type Value
2025-11-07 BLLN J
2025-11-07 BLLN J
2025-11-07 BLLN J
2025-11-07 BLLN $60K
2025-11-07 BLLN J $0
2025-11-07 BLLN J
2025-11-07 BLLN J
2025-11-07 BLLN J
2025-11-07 BLLN J

Other Insiders at BLLN (90d)

No other insider activity at this issuer in the last 90 days.