Tsao David bought BLLN
September 3, 2026 · Form 4 insider transaction
Tsao David bought 20,000 shares of BillionToOne, Inc. at $0.00 per share, a transaction worth N/A. The trade was recorded as conversion of a derivative and disclosed on an SEC Form 4, filed 5 days after the transaction.
Direction
Acquired (buy-side)
Shares
20,000
Price
$0.00
Total value
N/A
InsiderTsao David
RoleOfficer, Director
CompanyBillionToOne, Inc. (BLLN)
SecurityClass A Common Stock
Transaction codeC: Conversion of a derivative
Transaction dateSeptember 3, 2026
Filing dateSeptember 8, 2026
Shares owned after21,000
OwnershipDirect
10b5-1 planNo
AmendedNo
Footnotes
These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder.