Tsao David
Chief Technology Officer · 29 insider transactions on file
All transactions
| Date | Ticker | Company | Type | Shares | Price | Value | Filing |
|---|---|---|---|---|---|---|---|
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 3,835 | $125.76 | $482,285.00 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 3,185 | $125.85 | $400,818.87 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 2,477 | $123.84 | $306,760.35 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 2,415 | $124.90 | $301,632.53 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 2,274 | $123.71 | $281,313.81 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 1,725 | $124.65 | $215,027.81 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 1,138 | $122.84 | $139,795.11 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 1,102 | $122.90 | $135,440.76 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 1,028 | $126.90 | $130,448.27 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Sale | 821 | $126.89 | $104,175.05 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Option exercise | 10,000 | $2.80 | $28,000.00 | filing |
| 2026-07-13 | BLLN | BillionToOne, Inc. | Option exercise | 10,000 | $2.80 | $28,000.00 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 2,978 | $102.60 | $305,539.23 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 2,889 | $103.68 | $299,543.94 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 2,816 | $102.77 | $289,411.30 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 2,461 | $101.37 | $249,473.29 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 2,398 | $103.63 | $248,502.10 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 2,361 | $101.55 | $239,765.22 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 1,704 | $100.37 | $171,033.55 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 1,000 | $100.05 | $100,053.00 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 600 | $98.74 | $59,245.02 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 563 | $104.32 | $58,730.30 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Option exercise | 10,000 | $2.80 | $28,000.00 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Option exercise | 10,000 | $2.80 | $28,000.00 | filing |
| 2026-06-15 | BLLN | BillionToOne, Inc. | Sale | 230 | $104.47 | $24,028.56 | filing |
| 2025-11-07 | BLLN | BillionToOne, Inc. | Buy | 1,000 | $60.00 | $60,000.00 | filing |
| 2025-11-07 | BLLN | BillionToOne, Inc. | J | 2,325,108 | — | — | filing |
| 2025-11-07 | BLLN | BillionToOne, Inc. | J | 2,325,108 | — | — | filing |
| 2025-11-07 | BLLN | BillionToOne, Inc. | J | 2,325,108 | — | — | filing |
Insider transactions from SEC Form 4 filings via EDGAR. Names appear as filed and aren't normalized across issuers.