Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$338.6K
2,657 shares @ $127.44
Traded
Jul 9, 2026
Filed
Jul 13, 2026
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BillionToOne
BLLN
ServicesEducational Services
Transactions reported in official disclosures
Price with disclosed trades
Daily closes, past year · marks sit on transaction dates, sized by value
363 trades
| Reporting person | Filed | Transaction | Transaction value | Source | Actions |
|---|---|---|---|---|---|
| Atay Oguzhan Chairman And CEO | Jul 13, 2026 4-day lag | Sale Jul 9, 2026 | $338.6K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $41.71K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $34.38K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $41.68K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Sale Jul 9, 2026 | $169.38K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $41.68K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $1.51K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Sale Jul 9, 2026 | $139.63K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $41.71K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $35K Filed shares x price | SEC Form 4 View filing | |
| Sakakibara Shan Riku Chief Product Officer | Jul 13, 2026 4-day lag | Exercise Jul 9, 2026 | $34.38K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $135.84K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $24.18K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $53.59K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $48.82K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $71.66K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $122.85K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Exercise Jul 6, 2026 | $56K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Exercise Jul 6, 2026 | $56K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $77.51K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $151.46K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $220.57K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $70.73K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $71.54K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $239.37K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Exercise Jul 6, 2026 | $17.5K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $286.43K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $53.59K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $68.78K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Jul 8, 2026 2-day lag | Sale Jul 6, 2026 | $286.3K Filed shares x price | SEC Form 4 View filing |
Sakakibara Shan Riku
Chief Product Officer
Exercise
Calculated transaction value
$41.71K
1,355 shares @ $30.78
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Exercise
Calculated transaction value
$34.38K
1,117 shares @ $30.78
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Exercise
Calculated transaction value
$41.68K
1,354 shares @ $30.78
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Sale
Calculated transaction value
$169.38K
1,355 shares @ $125
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Exercise
Calculated transaction value
$41.68K
1,354 shares @ $30.78
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Exercise
Calculated transaction value
$1.51K
174 shares @ $8.65
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Sale
Calculated transaction value
$139.63K
1,117 shares @ $125
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Exercise
Calculated transaction value
$41.71K
1,355 shares @ $30.78
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$35K
12,500 shares @ $2.8
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Sakakibara Shan Riku
Chief Product Officer
Exercise
Calculated transaction value
$34.38K
1,117 shares @ $30.78
Traded
Jul 9, 2026
Filed
Jul 13, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$135.84K
1,138 shares @ $119.36
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$24.18K
194 shares @ $124.61
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$53.59K
444 shares @ $120.69
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$48.82K
412 shares @ $118.49
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$71.66K
587 shares @ $122.08
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$122.85K
1,034 shares @ $118.81
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$56K
20,000 shares @ $2.8
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$56K
20,000 shares @ $2.8
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$77.51K
622 shares @ $124.61
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$151.46K
1,221 shares @ $124.04
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$220.57K
1,828 shares @ $120.66
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$70.73K
591 shares @ $119.67
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$71.54K
586 shares @ $122.08
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$239.37K
1,945 shares @ $123.07
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$17.5K
6,250 shares @ $2.8
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$286.43K
2,324 shares @ $123.25
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$53.59K
444 shares @ $120.69
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$68.78K
570 shares @ $120.66
Traded
Jul 6, 2026
Filed
Jul 8, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$286.3K
2,323 shares @ $123.25
Traded
Jul 6, 2026
Filed
Jul 8, 2026