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Oguzhan Atay, Director at BillionToOne, sold BLLN on Jun 8, 2026

Data as of Oct 16

▼ SELL$8K79 shares at $100.87Oguzhan Atay DirectorBLLN BillionToOne, Inc.
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Traded
Jun 8, 2026
Disclosed
Jun 10, 2026
Filed
2 days after the trade

Form 4s are due within two business days.

Official filing (SEC Form 4) ↗

The price around the disclosure

Oguzhan Atay, Director at BillionToOne, sold BLLN on Jun 8, 2026TRADEDDISCLOSED
BLLNSimilar stocks (XLV — its sector index fund), rebased to BLLN's price on the disclosure day
BLLN since disclosure
−1.1%
after the sale
Similar stocks (XLV) since disclosure
+15.6%
XLV — its sector index fund

Change in closing price from Jun 10, 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.

Other trades in the same filing

  1. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$603Kdisclosed Jun 10 · filed 2 days after the trade
  2. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$177Kdisclosed Jun 10 · filed 2 days after the trade
  3. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$399Kdisclosed Jun 10 · filed 2 days after the trade
  4. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$518Kdisclosed Jun 10 · filed 2 days after the trade
  5. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$625Kdisclosed Jun 10 · filed 2 days after the trade
  6. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$357Kdisclosed Jun 10 · filed 2 days after the trade
  7. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$424Kdisclosed Jun 10 · filed 2 days after the trade
  8. ▼ SELLOguzhan Atay DirectorBLLN BillionToOne, Inc.$55.6Kdisclosed Jun 10 · filed 2 days after the trade

See every trade on BLLN →