Trade Summary

1 week ago, Atay Oguzhan, serving as Chairman and CEO at BillionToOne, Inc. (BLLN), sold 45,000 shares at $137.07 per share, for a total transaction value of $6,167,959.78. Following this transaction, Atay Oguzhan now holds 162,500 shares of BLLN.

This sale represents a 21.69% decrease in Atay Oguzhan's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Monday, August 3, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, August 6, 2026 (accepted Aug 5, 8:52 PM ET), 3 days after the trade was made.

BillionToOne, Inc. operates in the HEALTHCARE sector, specifically within the DIAGNOSTICS & RESEARCH industry. Insider selling activity in this sector can provide valuable signals about industry trends and company-specific developments.