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:

Stock Role Class Num Shares Value Price $ Report Date Ownership
BillionToOne, Inc. Chief Technology Officer, Director Class B Common Stock 2.33M Nov 7, 2025 Direct
BillionToOne, Inc. Chief Technology Officer, Director Stock Option (right to buy) 502K Nov 7, 2025 Direct
BillionToOne, Inc. Chief Technology Officer, Director Class A Common Stock 1K Nov 7, 2025 Direct
BillionToOne, Inc. Chief Technology Officer, Director Common Stock 0 Nov 7, 2025 Direct

Insider Reports Filed by David Tsao

Symbol Company Period Transactions Value $ Form Type Date Filed Role
BLLN BillionToOne, Inc. Nov 7, 2025 9 $60K 4 Nov 12, 2025 Chief Technology Officer, Director
BLLN BillionToOne, Inc. Nov 5, 2025 0 $0 3 Nov 5, 2025 Chief Technology Officer, Director