Trade Summary

4 days ago, Atay Oguzhan, serving as Chairman and CEO at BillionToOne, Inc. (BLLN), sold 38,750 shares at $122.05 per share, for a total transaction value of $4,729,379.11. Following this transaction, Atay Oguzhan now holds 175,000 shares of BLLN.

This sale represents a 18.13% 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, July 6, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, July 8, 2026 at 7:06 PM ET, 2 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.