Skip to main content
Watch Insiders
BLLNSector not reported

BillionToOne, Inc. (BLLN) Insider Trading

In the last 90 days, 4 BillionToOne, Inc. (BLLN) insiders reported no open-market purchases and 19 sales totaling $29,158,396. Source: SEC Form 4 filings.

SEC-reported filing activity is provided for research purposes and is not investment advice.

90-day C-suite buyers
0
90-day purchase value
$0.00
Corporate buyers
0
Latest transaction
Oct 14, 2026

Executive filings

Open-market transaction history

Purchase and sale summaries are ordered by the latest reported transaction date.

Open-market insider purchase and sale transactions
DateInsider nameRoleTypeSharesPriceTotal value
Oct 14, 2026Oguzhan AtayChairman and CEOSale11,000$99.14$1,090,575
Oct 12, 2026Oguzhan AtayChairman and CEOSale19,334$94.31$1,823,449
Oct 5, 2026David TsaoChief Technology OfficerSale20,000$108.15$2,162,950
Oct 5, 2026Bosch John Roderick tenSVP of Laboratory OperationsSale2,834$105.15$297,995
Sep 28, 2026Oguzhan AtayChairman and CEOSale10,999$120.64$1,326,919
Sep 24, 2026David TsaoChief Technology OfficerSale3,333$125.00$416,625
Sep 24, 2026Bosch John Roderick tenSVP of Laboratory OperationsSale1,416$120.00$169,920
Sep 21, 2026Bosch John Roderick tenSVP of Laboratory OperationsSale1,416$106.61$150,960
Sep 17, 2026Thomas P. LynchSee RemarksSale35,112$110.33$3,873,967
Sep 14, 2026Oguzhan AtayChairman and CEOSale30,331$99.91$3,030,443
🔒 Create Free Insider Alerts — Join Watch Insiders

Common questions

BLLN insider trading FAQ

Are BLLN insiders buying or selling?
Over the last 90 days, BLLN insiders were net sellers, reporting $0.00 of open-market purchases and $29,158,396 of sales.
When was the last BLLN insider purchase?
No open-market insider purchase of BillionToOne, Inc. stock was reported in the last 90 days.
Where does BLLN insider trading data come from?
Watch Insiders reads the SEC Form 4 filings that BillionToOne, Inc. officers, directors, and 10% owners submit to EDGAR, and refreshes this page daily.