Sakakibara Shan Riku sold BLLN
July 9, 2026 · Form 4 insider transaction
Sakakibara Shan Riku sold 4,000 shares of BillionToOne, Inc. at $125.00 per share, a transaction worth $500.0K. The trade was recorded as open-market sale under a pre-scheduled Rule 10b5-1 plan and disclosed on an SEC Form 4, filed 4 days after the transaction.
Direction
Disposed (sell-side)
Shares
4,000
Price
$125.00
Total value
$500.0K
InsiderSakakibara Shan Riku
RoleOfficer
CompanyBillionToOne, Inc. (BLLN)
SecurityClass A Common Stock
Transaction codeS: Open-market sale
Transaction dateJuly 9, 2026
Filing dateJuly 13, 2026
Shares owned after208,000
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.