Atay Oguzhan (CIK 2088549) reported 85 SEC Form 4 insider transactions across 1 companies over the past 18 months (most recent 2026-08-07). Recent activity: Buy BLLN (15,539 shares), Sell BLLN (15,539 shares), Sell BLLN (84 shares), Buy BLLN (6,250 shares), Buy BLLN (6,250 shares). Source: SEC Form 4.
| Date | Company | Role | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-07 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Buy | 15,539 | $43,509 |
| 2026-08-07 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 15,539 | $2.3M |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 84 | $11,172 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Buy | 6,250 | $17,500 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Buy | 6,250 | $17,500 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 269 | $35,779 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 555 | $74,264 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 135 | $18,282 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 6,354 | $866,842 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 9,989 | $1.4M |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 2,431 | $335,695 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 267 | $37,168 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Buy | 20,000 | $56,000 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 173 | $23,149 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 44 | $5,958 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 1,981 | $270,257 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 3,124 | $428,754 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 762 | $105,224 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 82 | $11,415 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 84 | $11,173 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 173 | $23,149 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 43 | $5,823 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 1,983 | $270,529 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 3,125 | $428,893 |
| 2026-08-05 | BillionToOne, Inc. (BLLN) | Chairman and CEO | Sell | 760 | $104,948 |
Source: SEC Form 4 filings · as of 2026-08-07