Insiders who reported open-market trades in the last 12 months at the companies Oguzhan Atay files at. Multiple unrelated insiders buying the same stock within a short window, cluster buying, has historically been one of the strongest Form 4 signals.
David Tsao - $11.09M in BLLN purchases and sales in the last 12 months
Thomas P. Lynch - $5.88M in BLLN purchases and sales in the last 12 months
Nancy Joann Johnson - $3.74M in BLLN purchases and sales in the last 12 months
Oguzhan Atay is a corporate insider, tracked as Chairman and CEO, Director of BillionToOne, Inc. (BLLN). InsiderAlpha holds 12 primary Form 4 filings for them, the earliest from 2025, updated as new SEC EDGAR filings are processed.
How many SEC Form 4 filings has Oguzhan Atay submitted recently?
8 primary Form 4 filings in the last 90 days, covering 1 company.
Has Oguzhan Atay been buying or selling stock?
Recorded transactions: 0 open-market purchases and 94 open-market sales ($27.17M) across all tracked filings.
Oguzhan Atay is Chairman and CEO, Director of BillionToOne, Inc. (BLLN). 12 SEC Form 4 filings on record going back to 2025, most recently on 30 October 2026. Most recent open-market trade: sold $315K of BLLN on 30 October 2026. Lifetime open-market sales: $27.17M.
Recent transactions
20
The latest 20 SEC Form 4 transactions reported by Oguzhan Atay.
InsiderAlpha's records for Oguzhan Atay go back to 2025: 12 primary Form 4 filings, an average of 6.0 per year. 129 recorded transactions carry a Rule 10b5-1 plan flag. This identifies the marked transactions as reported under a trading plan; it does not establish the plan status of unmarked transactions.
