Atay Oguzhan's Form 4 filing
BillionToOne, Inc. (BLLN) · filed Sep 30, 2026
- Accession no.
- 0002088549-26-000012
- Filed
- Sep 30, 2026, 8:33 PM ET
- Trade date
- Sep 28, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 3 non-derivative transactions and 1 derivative transaction. Open-market sales total $1.33M. It was filed 2 days after the trade.
Reporting owners
A Form 4 can have several reporting owners, such as a person and a fund they control. Trade tables show the first one.
| Owner | Relationship to the company |
|---|---|
| Atay OguzhanCIK 0002088549 | Director, Officer (Chairman and CEO) |
Non-derivative securities (Table I)
Acquisitions and disposals of common stock and similar shares, one row per line on the filing.
| Trade date | Security | Transaction | Shares | Price | Value | Shares after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | Class A Common Stock | MOption exerciseAcquired | +8,333 | $2.80 | +$23,332.4 | 8,333 | Direct | |
| Sep 28, 2026 | Class A Common Stock | SSaleDisposed | −8,333 | $120.64 | −$1,005,293.12 | 0 | Direct | |
| Sep 28, 2026 | Class A Common Stock | SSaleDisposed | −2,666 | $120.64 | −$321,626.24 | 154,502 | Indirect |
Derivative securities (Table II)
Options, warrants, restricted stock units and similar. Shares are the underlying shares; price and value are for the derivative itself, and the holding after is in derivative units.
| Trade date | Security | Transaction | Underlying shares | Unit price | Value | Held after | Ownership | Flags |
|---|---|---|---|---|---|---|---|---|
| Sep 28, 2026 | Class A Common Stock | MOption exerciseDisposed | −8,333 | $2.80 | −$23,332.4 | 493,629 | Direct |
Footnotes and remarks
Livermore keeps the footnotes that transaction prices refer to, all footnotes of amendments (Form 4/A) and the filing's remarks. Other footnotes, such as how indirect holdings are held or the details of a trading plan, are only in the original on SEC EDGAR.
No transaction price on this filing refers to a footnote.