Tsao David — Chief Technology Officer
Insider trading activity for Tsao David sourced from SEC EDGAR Form 4 filings.
Overview
- Title: Chief Technology Officer
- Company: BillionToOne, Inc.
- Total insider trades: 5
- Total buy volume: $28K
- Total sell volume: $2.0M
- Last trade: Aug 27, 2026
Recent Trades
| Date | Insider | Ticker / Company | Type | Shares | Value |
|---|---|---|---|---|---|
| Aug 25, 2026 | Tsao David | BLLN BillionToOne, Inc. | OTHER | 10,000 | $28K |
| Aug 25, 2026 | Tsao David | BLLN BillionToOne, Inc. | SELL | 10,000 | $1.0M |
| Aug 25, 2026 | Tsao David | BLLN BillionToOne, Inc. | OTHER | 10,000 | $28K |
| Aug 25, 2026 | Tsao David | BBLLN BillionToOne, Inc. | BUY | 10,000 | $28K |
| Aug 25, 2026 | Tsao David | BBLLN BBLLN | SELL | 10,000 | $1.0M |