Form 4: BillionToOne CEO Sells Shares
Insider Transaction (Form 4)
Oguzhan Atay, Chairman and CEO and a Director of BillionToOne, Inc., sold 15,539 shares of common stock on August 5, 2026 for $150.03 per share.
Summary
- Option exercise/conversion: acquired 15,539 Class A Common Stock at $2.80 ($43,509) on August 5, 2026; holds 15,539 after (Direct).
- Open-market sale: disposed of 15,539 Class A Common Stock at $150.03 ($2,331,352) on August 5, 2026 (Direct).
- Option exercise/conversion: disposed of 15,539 Stock Option (right to buy) at $2.80 ($43,509) on August 5, 2026; holds 526,961 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $2,331,352 of stock under a pre-arranged Rule 10b5-1 plan, which is typically routine.
Insider Transactions
Oguzhan Atay — Director, Officer (Chairman and CEO)
Transaction made under a Rule 10b5-1 trading plan.
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-08-05 | Option exercise/conversion | Class A Common Stock | 15,539 | $3 | $43.5K | 15,539 |
| 2026-08-05 | Open-market sale | Class A Common Stock | 15,539 | $150 | $2.3M | 0 |
| 2026-08-05 | Option exercise/conversion | Stock Option (right to buy) | 15,539 | $3 | $43.5K | 526,961 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-05 | Option exercise/conversion (15,539 shares) |
| 2026-08-05 | Open-market sale (15,539 shares) |
| 2026-08-05 | Option exercise/conversion (15,539 shares) |
Keywords
insider transaction, Form 4, BLLN, BillionToOne, Inc., bearish, Oguzhan Atay
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