Atay Oguzhan sold BLLN
September 28, 2026 · Form 4 insider transaction
Atay Oguzhan sold 8,333 shares of BillionToOne, Inc. at $120.64 per share, a transaction worth $1.01M. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Disposed (sell-side)
Shares
8,333
Price
$120.64
Total value
$1.01M
InsiderAtay Oguzhan
RoleOfficer, Director
CompanyBillionToOne, Inc. (BLLN)
SecurityClass A Common Stock
Transaction codeS: Open-market sale
Transaction dateSeptember 28, 2026
Filing dateSeptember 30, 2026
Shares owned after0
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 June 5, 2026.