Shan Riku Sakakibara, Chief Product Officer at BillionToOne, sold BLLN on Jul 31, 2026

Data as of Oct 16

▼ SELL$561K4,000 shares at $140.21Shan Riku Sakakibara Chief Product OfficerBLLN BillionToOne, Inc.

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Traded: Jul 31, 2026
Disclosed: Aug 4, 2026
Filed: 4 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

BLLNSimilar stocks (XLV — its sector index fund), rebased to BLLN's price on the disclosure day

BLLN since disclosure

−31.0%

after the sale

Similar stocks (XLV) since disclosure

+9.0%

XLV — its sector index fund

Change in closing price from Aug 4, 2026 (the first trading day on or after disclosure) to Oct 16, 2026. Dividends excluded. Not a return anyone earned.

Our take

None of our tested rules fired on this trade.

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