Tsao David's Form 4 filing
BillionToOne, Inc. (BLLN) · filed Jun 17, 2026
- Accession no.
- 0002087127-26-000002
- Filed
- Jun 17, 2026
- Trade date
- Jun 15, 2026
- Filing delay
- 2 days
- Rule 10b5-1 plan
- Checked
This filing lists 13 non-derivative transactions and 2 derivative transactions. Open-market sales total $2.05M. 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 |
|---|---|
| Tsao DavidCIK 0002087127 | Director, Officer (Chief Technology Officer) |
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 15, 2026 | Class A Common Stock | MOption exerciseAcquired | +10,000 | $2.80 | +$28,000 | 11,000 | Direct | |
| Jun 15, 2026 | Class A Common Stock | MOption exerciseAcquired | +10,000 | $2.80 | +$28,000 | 21,000 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −1,704 | $100.37 | −$171,030.48 | 19,296 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −2,361 | $101.55 | −$239,759.55 | 16,935 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −2,816 | $102.77 | −$289,400.32 | 14,119 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −2,889 | $103.68 | −$299,531.52 | 11,230 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −230 | $104.47 | −$24,028.1 | 11,000 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −600 | $98.74 | −$59,244 | 10,400 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −1,000 | $100.05 | −$100,050 | 9,400 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −2,461 | $101.37 | −$249,471.57 | 6,939 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −2,978 | $102.60 | −$305,542.8 | 3,961 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −2,398 | $103.63 | −$248,504.74 | 1,563 | Direct | |
| Jun 15, 2026 | Class A Common Stock | SSaleDisposed | −563 | $104.32 | −$58,732.16 | 1,000 | Direct |
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 15, 2026 | Class A Common Stock | MOption exerciseDisposed | −10,000 | $2.80 | −$28,000 | 630,000 | Direct | |
| Jun 15, 2026 | Class A Common Stock | MOption exerciseDisposed | −10,000 | $2.80 | −$28,000 | 620,000 | Direct |
Footnotes
Livermore does not store Form 4 footnotes. For price ranges, how indirect holdings are held and trading plan details, read the original on SEC EDGAR.