Skip to contentTsao David — BillionToOne, Inc. insider: 24 transactions · InsiderLensInsider trading activity of Tsao David
- Transactions on record
- 24
- since Nov 12, 2025
- Open-market buys
- 1
- $60K
- Open-market sells
- 11
- Companies traded
- 1
- last filing Jun 17, 2026
Figures computed from official regulatory filings — methodology.
Companies where Tsao David has traded
Track record of Tsao David
Insufficient history for a statistical track record (fewer than 5 open-market buys).
Transaction history of Tsao David
Co-insiders of Tsao David
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Hummingbird Ventures III CommVBillionToOne, Inc.
| Company | Filed | Type | Qty | Price | Value · USD | Src |
|---|
| Jun 17, 2026 | Sell | -230 | 104.47 USD | — | SEC |
| Jun 17, 2026 | Sell | -600 | 98.74 USD | — | SEC |
| Jun 17, 2026 | Sell | -2,816 | 102.77 USD | — | SEC |
| Jun 17, 2026 | ExerciseD | -10,000 | 2.80 USD | — | SEC |
| Jun 17, 2026 | Sell | -1,000 | 100.05 USD | — | SEC |
| Jun 17, 2026 | Sell | -2,889 | 103.68 USD | — | SEC |
| Jun 17, 2026 | Sell | -2,978 | 102.60 USD | — | SEC |
| Jun 17, 2026 | Exercise | 10,000 | 2.80 USD | — | SEC |
| Jun 17, 2026 | ExerciseD | -10,000 | 2.80 USD | — | SEC |
| Jun 17, 2026 | Sell | -2,398 | 103.63 USD | — | SEC |
| Jun 17, 2026 | Exercise | 10,000 | 2.80 USD | — | SEC |
| Jun 17, 2026 | Sell | -2,461 | 101.37 USD | — | SEC |
| Jun 17, 2026 | Sell | -1,704 | 100.37 USD | — | SEC |
| Jun 17, 2026 | Sell | -563 | 104.32 USD | — | SEC |
| Jun 17, 2026 | Sell | -2,361 | 101.55 USD | — | SEC |
| Nov 12, 2025 | OtherD | -501,551 | — | — | SEC |
| Nov 12, 2025 | Other | 2,325,108 | — | — | SEC |
| Nov 12, 2025 | OtherD | -640,000 | — | — | SEC |
| Nov 12, 2025 | OtherD | 2,325,108 | 0.00 USD | $0 | SEC |
| Nov 12, 2025 | OtherD | 501,551 | — | — | SEC |
| Nov 12, 2025 | Other | -2,325,108 | — | — | SEC |
| Nov 12, 2025 | Buy | 1,000 | 60.00 USD | $60K | SEC |
| Nov 12, 2025 | OtherD | 640,000 | — | — | SEC |
| Nov 12, 2025 | Other | -2,325,108 | — | — | SEC |