Trade Summary

3 days ago, Atay Oguzhan, serving as See Remarks at BillionToOne, Inc. (BLLN), sold 38,750 shares at $97.84 per share, for a total transaction value of $3,791,445.43. Following this transaction, Atay Oguzhan now holds 187,500 shares of BLLN.

This sale represents a 17.13% 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, June 8, 2026 and publicly disclosed via SEC Form 4 filing on Thursday, June 11, 2026 (accepted Jun 10, 8:35 PM ET), 3 days after the trade was made.