Tsao David bought BLLN
August 10, 2026 · Form 4 insider transaction
Tsao David bought 10,000 shares of BillionToOne, Inc. at $2.80 per share, a transaction worth $28.0K. The trade was recorded as option exercise under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
10,000
Price
$2.80
Total value
$28.0K
InsiderTsao David
RoleOfficer, Director
CompanyBillionToOne, Inc. (BLLN)
SecurityClass A Common Stock
Transaction codeM: Option exercise
Transaction dateAugust 10, 2026
Filing dateAugust 12, 2026
Shares owned after11,000
OwnershipDirect
10b5-1 planYes
AmendedNo
Footnotes
The transactions reported on this Form 4 were effected pursuant to a Rule 10b5-1 trading plan adopted by the reporting person on March 6, 2026.