BillionToOne's Co-Founder Sells 10,000 Shares for $1 Million

David Tsao, co-founder and CTO of BillionToOne, sold 10,000 shares for $1 million on August 25, 2026, through a pre-planned Rule 10b5-1 trading arrangement. The sale occurred after the stock declined from a 52-week high of $150.44, but Tsao retains 580,000 stock options, maintaining significant equity alignment with the company. Despite the recent share price drop following Q2 earnings, BillionToOne reported strong 64% year-over-year revenue growth.