Trade Summary

3 days ago, Tsao David, serving as Chief Technology Officer at BillionToOne, Inc. (BLLN), sold 20,000 shares at $102.27 per share, for a total transaction value of $2,045,325.51. Following this transaction, Tsao David now holds 1,000 shares of BLLN.

This sale represents a 95.24% decrease in Tsao David'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 15, 2026 and publicly disclosed via SEC Form 4 filing on Wednesday, June 17, 2026 at 5:47 PM ET, 2 days after the trade was made.