Sakakibara Shan Riku bought BLLN
June 24, 2026 · Form 4 insider transaction
Sakakibara Shan Riku bought 4,000 shares of BillionToOne, Inc. at $8.65 per share, a transaction worth $34.6K. The trade was recorded as option exercise and disclosed on an SEC Form 4, filed 2 days after the transaction.
Direction
Acquired (buy-side)
Shares
4,000
Price
$8.65
Total value
$34.6K
InsiderSakakibara Shan Riku
RoleOfficer
CompanyBillionToOne, Inc. (BLLN)
SecurityClass A Common Stock
Transaction codeM: Option exercise
Transaction dateJune 24, 2026
Filing dateJune 26, 2026
Shares owned after216,000
OwnershipDirect
10b5-1 planNo
AmendedNo