Atay Oguzhan's Form 4 filing
BillionToOne, Inc.BLLN · filed Jun 10, 2026
- Accession no.
- 0002088549-26-000002
- Filed
- Jun 10, 2026
- Trade date
- Jun 8-9, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 14 non-derivative transactions and 3 derivative transactions. Open-market sales total $3.79M. 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 (See Remarks) |
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 |
|---|---|---|---|---|---|---|---|---|
| Jun 8, 2026 | Class A Common Stock | MOption exerciseAcquired | +20,000 | $2.80 | +$56,000 | 20,000 | Direct | |
| Jun 8, 2026 | Class A Common Stock | MOption exerciseAcquired | +6,250 | $2.80 | +$17,500 | 26,250 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −79 | $100.87 | −$7,968.73 | 26,171 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −5,466 | $94.76F2 | −$517,958.16 | 20,705 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −1,856 | $95.59F3 | −$177,415.04 | 18,849 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −4,372 | $96.89F4 | −$423,603.08 | 14,477 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −4,066 | $98.12F5 | −$398,955.92 | 10,411 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −3,605 | $99.06F6 | −$357,111.3 | 6,806 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −556 | $99.97F7 | −$55,583.32 | 6,250 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −6,250 | $100.00 | −$625,000 | 0 | Direct | |
| Jun 8, 2026 | Class A Common Stock | CConversionAcquired | +10,000 | $0.00F8 | $0 | 10,000 | Direct | |
| Jun 9, 2026 | Class A Common Stock | GGiftDisposed | −10,000 | $0.00 | $0 | 0 | Direct | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −6,250 | $96.45 | −$602,812.5 | 193,750 | Indirect | |
| Jun 8, 2026 | Class A Common Stock | SSaleDisposed | −6,250 | $100.00 | −$625,000 | 187,500 | 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 |
|---|---|---|---|---|---|---|---|---|
| Jun 8, 2026 | Class A Common Stock | MOption exerciseDisposed | −20,000 | $2.80 | −$56,000 | 620,000 | Direct | |
| Jun 8, 2026 | Class A Common Stock | MOption exerciseDisposed | −6,250 | $2.80 | −$17,500 | 613,750 | Direct | |
| Jun 8, 2026 | Class A Common Stock | CConversionDisposed | −10,000 | $0.00F8 | $0 | 2,217,542 | 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.
- F2
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $94.300 to $95.280 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F3
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $95.320 to $96.225 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F4
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $96.530 to $97.2113 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F5
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $97.560 to $98.5428 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F6
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $98.560 to $99.550 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F7
The reported price in Column 4 is a weighted average price. These shares were sold in multiple transactions at prices ranging from $99.640 to $100.540 per share, inclusive. The holder undertakes to provide, upon written request, full information regarding the number of shares sold at each separate price within the range set forth in this footnote.
Referenced by the price of 1 transaction in Table I.
- F8
These shares of Class B common stock were converted at a 1:1 ratio for shares of Class A common stock at the option of the holder.
Referenced by the price of 1 transaction in Table I and 1 transaction in Table II.
Remarks
Chairman and Chief Executive Officer