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$BLLN All transactions

BillionToOne, Inc.

J

$ Value

Shares

10,000

Price

Filed

Nov 12

Insider

Name

Lynch Thomas P.

Title

See Remarks

CIK

0001659824

Roles

Officer

Transaction Details

Transaction Date

2025-11-07

Code

J

Table

Derivative

Ownership

Direct

Equity Swap

No

Shares After

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"). | These shares of Class A common stock were purchased by the Reporting Person through a directed share program in connection with the Offering. | The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period, with 25% of the options vesting on October 24, 2022. The remaining 75%. vest and become exercisable in equal monthly installments over the following three years, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. | The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on October 1, 2023, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. | The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on October 6, 2024, subject to the Reporting Person's continuous service with the Issuer through each such vesting date. | The options are subject to a service-based vesting requirement, which shall be satisfied over a four-year period. The options vest and become exercisable in equal monthly installments commencing on September 15, 2025, subject to the Reporting Person's continuous service with the Issuer through each such vesting date.

Filing Info

Accession No.

0001193125-25-278144

Form Type

4

Issuer CIK

0002070849

Lynch Thomas P.'s History

Date Ticker Type Value
2025-11-07 BLLN J
2025-11-07 BLLN J
2025-11-07 BLLN $6K
2025-11-07 BLLN J
2025-11-07 BLLN J
2025-11-07 BLLN J
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.