Home / Stocks / BLLN

BLLN insider trading

BillionToOne, Inc. — open-market insider buys and $1M+ sells from SEC Forms 3, 4 and 5.
Insider buys · 24 mo
6
Bought · 24 mo
$3.2M
Buys · last 90 days
0 · $0
Most recent buy
2025-11-12

Cluster buy detected

6 insiders bought BLLN within a short window (2025-11-07), $3.2M in total — cluster score 54/100. Members see the buyers, the score breakdown and the chart.

See the cluster

Recent insider filings

FiledInsiderTypeSharesPriceValue
2026-08-27Tsao David
Chief Technology Officer
Sold10,000$100.00$1.0M
2026-08-07Atay Oguzhan
Chairman and CEO
Sold15,539$150.03$2.3M
2026-08-05Atay Oguzhan
Chairman and CEO
Sold9,989$137.25$1.4M
2025-11-12Lynch Thomas P.cluster
See Remarks
Bought100$60.00$6k
2025-11-12Tsao Davidcluster
Chief Technology Officer
Bought1,000$60.00$60k
2025-11-12ten Bosch John Roderickcluster
See Remarks
Bought800$60.00$48k
2025-11-12Johnson Nancy JoAnncluster
See Remarks
Bought6,900$60.00$414k
2025-11-12Rai Akshaycluster
Director
Bought2,500$60.00$150k
2025-11-10Bremner Thomas Scluster
Director
Bought41,666$60.00$2.5M

Most active insider buyers

InsiderRoleBuysTotal bought
Bremner Thomas SDirector1$2.5M
Johnson Nancy JoAnnSee Remarks1$414k
Rai AkshayDirector1$150k
Tsao DavidChief Technology Officer1$60k
ten Bosch John RoderickSee Remarks1$48k
Lynch Thomas P.See Remarks1$6k

See BLLN on the chart

Every insider buy and sell for BLLN plotted on the price, the full two-year history, cluster scores and daily updates — in the members area, $29/month. A free quarterly sample of the whole dataset needs no account.

Open the browserFree sample
Data from the SEC EDGAR ownership filings, refreshed daily. Only open-market purchases (transaction code P) and sales of $1M or more are shown; grants, option exercises and tax withholding are excluded because they run on schedules set years earlier. Not investment advice.