• BillionToOne Chief Product Officer Sakakibara Shan Riku sold 8,000 Class A common shares at $110 on June 24, 2026.
• The sales followed the exercise of 4,000 stock options at $8.65, lifting direct ownership to 216,000 shares before the disposals.
• Direct holdings ended the day at 208,000 Class A shares.

Disclaimer: This news brief was created by Public Technologies (PUBT) using generative artificial intelligence. While PUBT strives to provide accurate and timely information, this AI-generated content is for informational purposes only and should not be interpreted as financial, investment, or legal advice. Billiontoone Inc. published the original content used to generate this news brief via EDGAR, the Electronic Data Gathering, Analysis, and Retrieval system operated by the U.S. Securities and Exchange Commission (Ref. ID: 0002088547-26-000004), on June 26, 2026, and is solely responsible for the information contained therein.