Sakakibara Shan Riku's Form 4 filing
BillionToOne, Inc. (BLLN) · filed Jun 26, 2026
- Accession no.
- 0002088547-26-000004
- Filed
- Jun 26, 2026
- Trade date
- Jun 24, 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 $880.0K. 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 |
|---|---|
| Sakakibara Shan RikuCIK 0002088547 | Officer (Chief Product 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 24, 2026 | Class A Common Stock | MOption exerciseAcquired | +4,000 | $8.65 | +$34,600 | 216,000 | Direct | |
| Jun 24, 2026 | Class A Common Stock | SSaleDisposed | −4,000 | $110.00 | −$440,000 | 212,000 | Direct | |
| Jun 24, 2026 | Class A Common Stock | SSaleDisposed | −4,000 | $110.00 | −$440,000 | 208,000 | 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 24, 2026 | Class A Common Stock | MOption exerciseDisposed | −4,000 | $8.65 | −$34,600 | 36,000 | 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.