ten Bosch John Roderick 4

What Happened
John Roderick ten Bosch, Senior Vice President of Laboratory Operations at BillionToOne (BLLN), sold a total of 2,832 shares in two open‑market transactions on June 15, 2026. Each sale was for 1,416 shares at $101.47 per share, yielding $143,682 per trade and about $287,364 in total. These were disposals (sales), which are often routine insider liquidity events rather than affirmative bullish purchases.

Key Details

• Transaction date: 2026-06-15 (reported on Form 4 filed 2026-06-17)
• Trades: Two sales of 1,416 shares each at $101.47 per share
• Total sold: 2,832 shares for approximately $287,364
• Footnote: Transactions were made pursuant to a Rule 10b5‑1 trading plan adopted March 6, 2026
• Shares owned after the transaction: Not specified in the provided filing
• Timeliness: Filing covers the period 2026-06-15 and was filed 2026-06-17 (no late‑filing indication in the provided data)

Context
A 10b5‑1 trading plan allows insiders to pre‑arrange trades to avoid trading on nonpublic information; sales under such plans are typically viewed as pre‑planned liquidity rather than a real‑time signal about company prospects. This report documents sales (not purchases or option exercises) and contains no information about changes in tenure or ownership percentage beyond the reported disposals.