Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$146.61K
1,521 shares @ $96.39
Traded
Oct 12, 2026
Filed
Oct 14, 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 | Oct 14, 2026 2-day lag | Sale Oct 12, 2026 | $146.61K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Oct 14, 2026 2-day lag | Exercise Oct 12, 2026 | $46.67K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Oct 14, 2026 2-day lag | Exercise Oct 12, 2026 | $46.67K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Oct 14, 2026 2-day lag | Sale Oct 12, 2026 | $237.55K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Oct 14, 2026 2-day lag | Sale Oct 12, 2026 | $260.33K Filed shares x price | SEC Form 4 View filing | |
| Lynch Thomas P. See Remarks | Oct 13, 2026 5-day lag | Exercise Oct 8, 2026 | $69.2K Filed shares x price | SEC Form 4 View filing | |
| Lynch Thomas P. See Remarks | Oct 13, 2026 5-day lag | Exercise Oct 8, 2026 | $69.2K Filed shares x price | SEC Form 4 View filing | |
| Ten Bosch John Roderick SVP Of Laboratory Operations | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $149K Filed shares x price | SEC Form 4 View filing | |
| Ten Bosch John Roderick SVP Of Laboratory Operations | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $149K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Exercise Oct 5, 2026 | $28K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $58.59K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $2.2K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Exercise Oct 5, 2026 | $28K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Exercise Oct 5, 2026 | $28K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $199.63K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Exercise Oct 5, 2026 | $28K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $464.36K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $204.64K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $42.44K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $236.44K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $533.55K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $11.01K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $91.71K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Oct 7, 2026 2-day lag | Sale Oct 5, 2026 | $318.4K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Sep 30, 2026 2-day lag | Sale Sep 28, 2026 | $1.01M Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Sep 30, 2026 2-day lag | Exercise Sep 28, 2026 | $23.33K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Sep 30, 2026 2-day lag | Exercise Sep 28, 2026 | $23.33K Filed shares x price | SEC Form 4 View filing | |
| Atay Oguzhan Chairman And CEO | Sep 30, 2026 2-day lag | Sale Sep 28, 2026 | $321.63K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Sep 28, 2026 4-day lag | Exercise Sep 24, 2026 | $9.33K Filed shares x price | SEC Form 4 View filing | |
| Tsao David Chief Technology Officer | Sep 28, 2026 4-day lag | Exercise Sep 24, 2026 | $9.33K Filed shares x price | SEC Form 4 View filing |
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$46.67K
16,667 shares @ $2.8
Traded
Oct 12, 2026
Filed
Oct 14, 2026
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$46.67K
16,667 shares @ $2.8
Traded
Oct 12, 2026
Filed
Oct 14, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$237.55K
2,553 shares @ $93.05
Traded
Oct 12, 2026
Filed
Oct 14, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$260.33K
2,667 shares @ $97.61
Traded
Oct 12, 2026
Filed
Oct 14, 2026
Lynch Thomas P.
See Remarks
Exercise
Calculated transaction value
$69.2K
8,000 shares @ $8.65
Traded
Oct 8, 2026
Filed
Oct 13, 2026
Lynch Thomas P.
See Remarks
Exercise
Calculated transaction value
$69.2K
8,000 shares @ $8.65
Traded
Oct 8, 2026
Filed
Oct 13, 2026
Ten Bosch John Roderick
SVP Of Laboratory Operations
Sale
Calculated transaction value
$149K
1,417 shares @ $105.15
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Ten Bosch John Roderick
SVP Of Laboratory Operations
Sale
Calculated transaction value
$149K
1,417 shares @ $105.15
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Exercise
Calculated transaction value
$28K
10,000 shares @ $2.8
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$58.59K
555 shares @ $105.56
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$2.2K
20 shares @ $110.08
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Exercise
Calculated transaction value
$28K
10,000 shares @ $2.8
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Exercise
Calculated transaction value
$28K
10,000 shares @ $2.8
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$199.63K
1,829 shares @ $109.14
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Exercise
Calculated transaction value
$28K
10,000 shares @ $2.8
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$464.36K
4,284 shares @ $108.39
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$204.64K
1,909 shares @ $107.19
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$42.44K
400 shares @ $106.1
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$236.44K
2,200 shares @ $107.47
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$533.55K
4,916 shares @ $108.53
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$11.01K
100 shares @ $110.09
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$91.71K
866 shares @ $105.9
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Tsao David
Chief Technology Officer
Sale
Calculated transaction value
$318.4K
2,921 shares @ $109
Traded
Oct 5, 2026
Filed
Oct 7, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$1.01M
8,333 shares @ $120.64
Traded
Sep 28, 2026
Filed
Sep 30, 2026
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$23.33K
8,333 shares @ $2.8
Traded
Sep 28, 2026
Filed
Sep 30, 2026
Atay Oguzhan
Chairman And CEO
Exercise
Calculated transaction value
$23.33K
8,333 shares @ $2.8
Traded
Sep 28, 2026
Filed
Sep 30, 2026
Atay Oguzhan
Chairman And CEO
Sale
Calculated transaction value
$321.63K
2,666 shares @ $120.64
Traded
Sep 28, 2026
Filed
Sep 30, 2026
Tsao David
Chief Technology Officer
Exercise
Calculated transaction value
$9.33K
3,333 shares @ $2.8
Traded
Sep 24, 2026
Filed
Sep 28, 2026
Tsao David
Chief Technology Officer
Exercise
Calculated transaction value
$9.33K
3,333 shares @ $2.8
Traded
Sep 24, 2026
Filed
Sep 28, 2026