Atay Oguzhan sold BLLN
September 28, 2026 · Form 4 insider transaction
Atay Oguzhan sold 2,666 shares of BillionToOne, Inc. at $120.64 per share, a transaction worth $321.6K. 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
2,666
Price
$120.64
Total value
$321.6K
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 after154,502
OwnershipIndirect
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's spouse on June 7, 2026.; Represents shares held by the Reporting Person's spouse.