Shan Riku Sakakibara

CPO Shan Riku Sakakibara sells 8,000 shares of BLLN for $1.0M under scheduled 10b5-1 plan, retains 204,000 non-derivative shares plus 223,411 derivative holdings

Shan Riku Sakakibara, Chief Product Officer of BillionToOne, executed 5 separate sales totaling 8,000 shares for $1,000,000.00 at $125.00 per share on 2026-07-09, a reduction of 3.8% from his pre-transaction holdings of 212,000 shares. This transaction is part of a pre-arranged 10b5-1 trading plan adopted on 2026-03-06, meaning the sales were scheduled rather than discretionary. The current stock price of $123.25 sits 11.1% below the 52-week high of $138.70, though the stock has appreciated 21.9% over the past 30 days and 48.9% over 90 days. The insider retains substantial non-derivative exposure (204,000 shares post-sale) and maintains derivative holdings totaling 223,411 shares across four stock option vehicles, indicating material ongoing commitment to the company. BillionToOne has demonstrated strong fundamentals with 100% annual revenue growth and a profitable quarter ($18.0M net income on $108.4M revenue), though the P/E of 46.86 reflects a high valuation relative to earnings.

BillionToOne CPO Sakakibara sold 8,000 shares for $880,000.00 under scheduled 10b5-1 plan; retains 208,000 shares plus 36,000 stock options

Shan Riku Sakakibara, Chief Product Officer of BillionToOne, Inc., executed 2 separate sales totaling 8,000 shares for $880,000.00 on 2026-06-24 at $110.00 per share, reducing his non-derivative holdings from 216,000 to 208,000 shares. This sale was part of a pre-arranged 10b5-1 trading plan adopted on 2026-03-06, meaning it was scheduled rather than discretionary. At the transaction price of $110.00, the stock currently trades at $118.17, reflecting a +29.8% gain over the past 30 days and +69.9% over 90 days. The insider maintains significant non-derivative exposure via 208,000 shares post-transaction and retains derivative rights to 36,000 additional shares through stock options, indicating continued substantive equity stake in the company.

CPO Sakakibara sells 8,000 shares ($785.8K) via scheduled 10b5-1 plan; retains 212,000 shares post-transaction

Shan Riku Sakakibara, Chief Product Officer, executed 2 separate sales totaling 8,000 shares for $785,800.00 on 2026-06-08, reducing his holdings from 220,000 to 212,000 shares. The transaction was conducted under a pre-arranged 10b5-1 trading plan adopted on 2026-03-06, meaning it was scheduled rather than discretionary. The blended average price of $98.22 compares closely to the current price of $99.26, with the stock trading 28.4% below its 52-week high of $138.70. BillionToOne demonstrates strong fundamentals with annual revenue growth of +100.0% and a market cap of $1,109,574,634.42, though the P/E of 37.74 reflects premium valuation typical of high-growth companies.