David Tsao

Insider Reports History

Location
Menlo Park, CA
Signature
/s/ Thomas P. Lynch, Attorney-in-Fact
All insider transactions
Transactions in reports broken out by “transaction date” reported in original SEC filing, see here for transactions aggregated across transaction date

Holdings reported by David Tsao:

Company Role Class Num Shares Value Price $ Report Date Ownership
BillionToOne, Inc. Chief Technology Officer, Director Class B Common Stock 2,325,108 07 Nov 2025 Direct
BillionToOne, Inc. Chief Technology Officer, Director Stock Option (right to buy) 501,551 07 Nov 2025 Direct
BillionToOne, Inc. Chief Technology Officer, Director Class A Common Stock 1,000 07 Nov 2025 Direct
BillionToOne, Inc. Chief Technology Officer, Director Common Stock 0 07 Nov 2025 Direct

Insider Reports Filed by David Tsao

Symbol Company Period Transactions Value $ Form Type Role Filing Time
/report/000119312525278138-tsao-david-2025-11-07 BillionToOne, Inc. 07 Nov 2025 9 +$60,000 4 Chief Technology Officer, Director 12 Nov 2025, 18:12
/report/000119312525267664-tsao-david-2025-11-05 BillionToOne, Inc. 05 Nov 2025 0 $0 3 Chief Technology Officer, Director 05 Nov 2025, 21:30