BLLN.NASDAQBilliontoone, INC
Form 4: BillionToOne CEO Sells Shares
Sentiment:
Insider Transaction (Form 4)
Oguzhan Atay, Chairman and CEO and a Director of BillionToOne, Inc., sold 45,000 shares of common stock on August 3, 2026.
Summary
- Option exercise/conversion: acquired 20,000 Class A Common Stock at $2.80 ($56,000) on August 3, 2026; holds 20,000 after (Direct).
- Option exercise/conversion: acquired 6,250 Class A Common Stock at $2.80 ($17,500) on August 3, 2026; holds 26,250 after (Direct).
- Option exercise/conversion: acquired 6,250 Class A Common Stock at $2.80 ($17,500) on August 3, 2026; holds 32,500 after (Direct).
- Open-market sale: disposed of 269 Class A Common Stock at $133.01 ($35,779) on August 3, 2026; holds 32,231 after (Direct).
- Open-market sale: disposed of 555 Class A Common Stock at $133.81 ($74,264) on August 3, 2026; holds 31,676 after (Direct).
- Open-market sale: disposed of 135 Class A Common Stock at $135.42 ($18,282) on August 3, 2026; holds 31,541 after (Direct).
- Open-market sale: disposed of 6,354 Class A Common Stock at $136.42 ($866,842) on August 3, 2026; holds 25,187 after (Direct).
- Open-market sale: disposed of 9,989 Class A Common Stock at $137.25 ($1,370,946) on August 3, 2026; holds 15,198 after (Direct).
- Open-market sale: disposed of 2,431 Class A Common Stock at $138.09 ($335,695) on August 3, 2026; holds 12,767 after (Direct).
- Open-market sale: disposed of 267 Class A Common Stock at $139.21 ($37,168) on August 3, 2026; holds 12,500 after (Direct).
- Open-market sale: disposed of 84 Class A Common Stock at $133.00 ($11,172) on August 3, 2026; holds 12,416 after (Direct).
- Open-market sale: disposed of 173 Class A Common Stock at $133.81 ($23,149) on August 3, 2026; holds 12,243 after (Direct).
- Open-market sale: disposed of 44 Class A Common Stock at $135.41 ($5,958) on August 3, 2026; holds 12,199 after (Direct).
- Open-market sale: disposed of 1,981 Class A Common Stock at $136.42 ($270,257) on August 3, 2026; holds 10,218 after (Direct).
- Open-market sale: disposed of 3,124 Class A Common Stock at $137.25 ($428,754) on August 3, 2026; holds 7,094 after (Direct).
- Open-market sale: disposed of 762 Class A Common Stock at $138.09 ($105,224) on August 3, 2026; holds 6,332 after (Direct).
- Open-market sale: disposed of 82 Class A Common Stock at $139.21 ($11,415) on August 3, 2026; holds 6,250 after (Direct).
- Open-market sale: disposed of 84 Class A Common Stock at $133.01 ($11,173) on August 3, 2026; holds 6,166 after (Direct).
- Open-market sale: disposed of 173 Class A Common Stock at $133.81 ($23,149) on August 3, 2026; holds 5,993 after (Direct).
- Open-market sale: disposed of 43 Class A Common Stock at $135.41 ($5,823) on August 3, 2026; holds 5,950 after (Direct).
- Open-market sale: disposed of 1,983 Class A Common Stock at $136.42 ($270,529) on August 3, 2026; holds 3,967 after (Direct).
- Open-market sale: disposed of 3,125 Class A Common Stock at $137.25 ($428,893) on August 3, 2026; holds 842 after (Direct).
- Open-market sale: disposed of 760 Class A Common Stock at $138.09 ($104,948) on August 3, 2026; holds 82 after (Direct).
- Open-market sale: disposed of 82 Class A Common Stock at $139.20 ($11,415) on August 3, 2026 (Direct).
- Open-market sale: disposed of 6,250 Class A Common Stock at $137.37 ($858,562) on August 3, 2026; holds 168,750 after (Indirect).
- Open-market sale: disposed of 6,250 Class A Common Stock at $137.37 ($858,562) on August 3, 2026; holds 162,500 after (Indirect).
- Option exercise/conversion: disposed of 20,000 Stock Option (right to buy) at $2.80 ($56,000) on August 3, 2026; holds 555,000 after (Direct).
- Option exercise/conversion: disposed of 6,250 Stock Option (right to buy) at $2.80 ($17,500) on August 3, 2026; holds 548,750 after (Direct).
- Option exercise/conversion: disposed of 6,250 Stock Option (right to buy) at $2.80 ($17,500) on August 3, 2026; holds 542,500 after (Direct).
Sentiment
Score: 4
Explanation: StockSavvy.ai views this as a mildly negative but low-conviction signal: an insider sold $6,167,960 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 |
|---|---|---|---|---|---|---|
| 2026-08-03 | Option exercise/conversion | Class A Common Stock | 20,000 | $3 | $56.0K | 20,000 |
| 2026-08-03 | Option exercise/conversion | Class A Common Stock | 6,250 | $3 | $17.5K | 26,250 |
| 2026-08-03 | Option exercise/conversion | Class A Common Stock | 6,250 | $3 | $17.5K | 32,500 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 269 | $133 | $35.8K | 32,231 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 555 | $134 | $74.3K | 31,676 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 135 | $135 | $18.3K | 31,541 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 6,354 | $136 | $866.8K | 25,187 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 9,989 | $137 | $1.4M | 15,198 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 2,431 | $138 | $335.7K | 12,767 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 267 | $139 | $37.2K | 12,500 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 84 | $133 | $11.2K | 12,416 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 173 | $134 | $23.1K | 12,243 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 44 | $135 | $6.0K | 12,199 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 1,981 | $136 | $270.3K | 10,218 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 3,124 | $137 | $428.8K | 7,094 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 762 | $138 | $105.2K | 6,332 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 82 | $139 | $11.4K | 6,250 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 84 | $133 | $11.2K | 6,166 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 173 | $134 | $23.1K | 5,993 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 43 | $135 | $5.8K | 5,950 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 1,983 | $136 | $270.5K | 3,967 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 3,125 | $137 | $428.9K | 842 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 760 | $138 | $104.9K | 82 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 82 | $139 | $11.4K | 0 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 6,250 | $137 | $858.6K | 168,750 |
| 2026-08-03 | Open-market sale | Class A Common Stock | 6,250 | $137 | $858.6K | 162,500 |
| 2026-08-03 | Option exercise/conversion | Stock Option (right to buy) | 20,000 | $3 | $56.0K | 555,000 |
| 2026-08-03 | Option exercise/conversion | Stock Option (right to buy) | 6,250 | $3 | $17.5K | 548,750 |
| 2026-08-03 | Option exercise/conversion | Stock Option (right to buy) | 6,250 | $3 | $17.5K | 542,500 |
Key Dates
| Date | Description |
|---|---|
| 2026-08-03 | Option exercise/conversion (20,000 shares) |
| 2026-08-03 | Option exercise/conversion (6,250 shares) |
| 2026-08-03 | Option exercise/conversion (6,250 shares) |
| 2026-08-03 | Open-market sale (269 shares) |
| 2026-08-03 | Open-market sale (555 shares) |
| 2026-08-03 | Open-market sale (135 shares) |
| 2026-08-03 | Open-market sale (6,354 shares) |
| 2026-08-03 | Open-market sale (9,989 shares) |
| 2026-08-03 | Open-market sale (2,431 shares) |
| 2026-08-03 | Open-market sale (267 shares) |
| 2026-08-03 | Open-market sale (84 shares) |
| 2026-08-03 | Open-market sale (173 shares) |
| 2026-08-03 | Open-market sale (44 shares) |
| 2026-08-03 | Open-market sale (1,981 shares) |
| 2026-08-03 | Open-market sale (3,124 shares) |
| 2026-08-03 | Open-market sale (762 shares) |
| 2026-08-03 | Open-market sale (82 shares) |
| 2026-08-03 | Open-market sale (84 shares) |
| 2026-08-03 | Open-market sale (173 shares) |
| 2026-08-03 | Open-market sale (43 shares) |
| 2026-08-03 | Open-market sale (1,983 shares) |
| 2026-08-03 | Open-market sale (3,125 shares) |
| 2026-08-03 | Open-market sale (760 shares) |
| 2026-08-03 | Open-market sale (82 shares) |
| 2026-08-03 | Open-market sale (6,250 shares) |
| 2026-08-03 | Open-market sale (6,250 shares) |
| 2026-08-03 | Option exercise/conversion (20,000 shares) |
| 2026-08-03 | Option exercise/conversion (6,250 shares) |
| 2026-08-03 | Option exercise/conversion (6,250 shares) |
Keywords
insider transaction, Form 4, BLLN, BillionToOne, Inc., bearish, Oguzhan Atay
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