Trade Summary

5 days ago, Johnson Nancy JoAnn, serving as See Remarks at BillionToOne, Inc. (BLLN), sold 14,199 shares at $128.29 per share, for a total transaction value of $1,821,628.11. Following this transaction, Johnson Nancy JoAnn now holds 6,900 shares of BLLN.

This sale represents a 67.30% decrease in Johnson Nancy JoAnn's stake in the company. This is considered a high-conviction trade given the significant change in ownership.

The trade was executed on Thursday, July 16, 2026 and publicly disclosed via SEC Form 4 filing on Monday, July 20, 2026 at 7:38 PM ET, 4 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.