Form 4: BillionToOne CTO Reports Stock Transaction
Insider Transaction (Form 4)
David Tsao, Chief Technology Officer and a Director of BillionToOne, Inc., reported multiple transactions in common stock on September 3, 2026.
Summary
- Conversion of derivative: acquired 20,000 Class A Common Stock on September 3, 2026; holds 21,000 after (Direct).
- Bona fide gift: disposed of 20,000 Class A Common Stock on September 8, 2026; holds 1,000 after (Direct).
- Conversion of derivative: disposed of 20,000 Class B Common Stock on September 3, 2026; holds 2,305,108 after (Direct).
Sentiment
Score: 5
Explanation: StockSavvy.ai views this as routine: the reported changes are grants, option exercises, tax withholding or similar administrative transactions, which carry limited directional signal.
Insider Transactions
David Tsao — Director, Officer (Chief Technology Officer)
| Date | Transaction | Security | Shares | Price | Value | Held After |
|---|---|---|---|---|---|---|
| 2026-09-03 | Conversion of derivative | Class A Common Stock | 20,000 | — | — | 21,000 |
| 2026-09-08 | Bona fide gift | Class A Common Stock | 20,000 | — | — | 1,000 |
| 2026-09-03 | Conversion of derivative | Class B Common Stock | 20,000 | — | — | 2,305,108 |
Key Dates
| Date | Description |
|---|---|
| 2026-09-03 | Conversion of derivative (20,000 shares) |
| 2026-09-08 | Bona fide gift (20,000 shares) |
| 2026-09-03 | Conversion of derivative (20,000 shares) |
Keywords
insider transaction, Form 4, BLLN, BillionToOne, Inc., neutral, David Tsao
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