BillionToOne Officer Johnson Sells $1.4M+ in Class A Common Stock Under 10b5-1 Plan

Nancy JoAnn Johnson, Senior Vice President of Sales and Commercial Operations at BillionToOne, Inc. (BLLN), sold 13,000 shares of Class A Common Stock over two days in June 2026 pursuant to a Rule 10b5-1 trading plan adopted on March 6, 2026. The transactions occurred on June 8-9, 2026, with weighted average prices ranging from $99.0868 to $102.3367 per share. Johnson disposed of 2,918 shares at $99.0868, 300 shares at $100.05, and 200 shares at $100.985 on June 8, followed by 4,666 shares at $99.2721, 2,700 shares at $101.3757, 1,816 shares at $102.3367, and 1,400 shares at $100.3079 on June 9. Following these sales, Johnson's remaining holdings decreased to 21,900 shares. The sales were executed at various price points within specified ranges, as detailed in the footnotes, and were pre-planned under the 10b5-1 arrangement.