Buys
Open market- Shares
- Avg price
- Total value
Oguzhan Atay - Chairman and CEO, Director at BillionToOne, Inc.
Issuer-level insider activity
- Role
- Chairman and CEO, Director
- Issuer ticker
- BLLN on Nasdaq
- Entity type
- Individual
- Source filing history
- Open source filing history
Identity
Names, identifiers, and filing context for this profile.
1 identity field
Source evidence
Original filing metadata and source links for verification.
1 source field
Past-year transaction volume for Oguzhan Atay in BillionToOne, Inc.
Sells
Open market- Shares
- -90,000
- Avg price
- $112.19
- Total value
- -$10,097,100
Net
Past year- Shares
- -90,000
- Share %
- -100%
- Total value
- -$10,097,100
Reported holdings for Oguzhan Atay in BillionToOne, Inc.
Form 4 holding
Chairman and CEO, Director
BillionToOne, Inc.
- Security class
- Class A Common Stock
- Shares / value
- 175,000
- Estimated value
- $21,829,500
- Report date
- 06 Jul 2026
- Price
- $124.74
- Ownership
- By spouse
Form 4 holding
Chairman and CEO, Director
BillionToOne, Inc.
- Security class
- Class A Common Stock
- Shares / value
- 0
- Estimated value
- $0
- Report date
- 09 Jul 2026
- Price
- $128.23
- Ownership
- Direct
Form 4 holding
Chairman and CEO, Director
BillionToOne, Inc.
- Security class
- Class B Common Stock
- Shares / value
- 2,217,542
- Estimated value
- Report date
- 08 Jun 2026
- Price
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
Form 4 holding
Chairman and CEO, Director
BillionToOne, Inc.
- Security class
- Stock Option (right to buy)
- Shares / value
- 575,000
- Estimated value
- Report date
- 09 Jul 2026
- Price
- Ownership
- Direct
- Underlying class
- Class A Common Stock
- Underlying amount
Form 4 holding
Chairman and CEO, Director
BillionToOne, Inc.
- Security class
- Common Stock
- Shares / value
- 0
- Estimated value
- Report date
- 07 Nov 2025
- Price
- Ownership
- By spouse
Form 4 holding
Chairman and CEO, Director
BillionToOne, Inc.
- Security class
- Common Stock
- Shares / value
- 0
- Estimated value
- Report date
- 07 Nov 2025
- Price
- Ownership
- Direct
Form 4 holding
Chairman and CEO, Director
BillionToOne, Inc.
- Security class
- Series A-1 Convertible Preferred Stock
- Shares / value
- 0
- Estimated value
- Report date
- 07 Nov 2025
- Price
- Ownership
- Direct
- Underlying class
- Common Stock
- Underlying amount
Transaction history for Oguzhan Atay in BillionToOne, Inc.
| Sym | Class | Transaction | % | SEC-reported value | SEC-reported price | Shares | Shares after | Date | Ownership |
|---|
* marks a reported price that did not pass the local price check.