Insidervault
LIVE FROM THE DATABASETRANSACTIONS 362,430COMPANIES 5,763LATEST TRADE Oct 16UPDATED Oct 17, 12:31 AM
Reporting ownerCIK 0002087127

David Tsao

65 transactions in one company, from November 7, 2025 to October 5, 2026.

Transactions
651 company
Bought · P
$60Kopen market
Sold · S
$9.1Mopen market
Net
−$9.0Mnet selling

By company

Where this insider traded.

CompanyTickerTradesBoughtSold
BillionToOne, Inc.BLLN65$60K$9.1M

All transactions

65 in total, newest filings first.

CompanyTickerInsiderDateCodeSharesPriceValue
BillionToOne, Inc.BLLNDavid TsaoCTODERIVOct 5MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTODERIVOct 5MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN100$110.09$11K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN1,829$109.14$200K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN4,916$108.53$534K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN2,200$107.47$236K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN400$106.10$42K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN555$105.56$59K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN20$110.08$2K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN2,921$109.00$318K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN4,284$108.39$464K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN1,909$107.20$205K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5SPLAN866$105.90$92K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTOOct 5MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTODERIVSep 24MPLAN3,333$2.80$9K?
BillionToOne, Inc.BLLNDavid TsaoCTOSep 24SPLAN3,333$125.00$417K
BillionToOne, Inc.BLLNDavid TsaoCTOSep 24MPLAN3,333$2.80$9K
BillionToOne, Inc.BLLNDavid TsaoCTODERIVSep 3C20,000$0.00—?
BillionToOne, Inc.BLLNDavid TsaoCTOSep 8G20,000$0.00—
BillionToOne, Inc.BLLNDavid TsaoCTOSep 3C20,000$0.00—
BillionToOne, Inc.BLLNDavid TsaoCTODERIVAug 25MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTOAug 25SPLAN10,000$100.00$1.0M
BillionToOne, Inc.BLLNDavid TsaoCTOAug 25MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTODERIVAug 10MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTOAug 10SPLAN10,000$92.86$929K
BillionToOne, Inc.BLLNDavid TsaoCTOAug 10MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTODERIVJul 13MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTODERIVJul 13MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN1,028$126.90$130K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN3,835$125.76$482K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN1,725$124.65$215K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN2,274$123.71$281K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN1,138$122.84$140K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN821$126.89$104K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN3,185$125.85$401K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN2,415$124.90$302K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN2,477$123.84$307K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13SPLAN1,102$122.90$135K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTOJul 13MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTODERIVJun 15MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTODERIVJun 15MPLAN10,000$2.80$28K?
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN563$104.32$59K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN2,398$103.63$249K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN2,978$102.60$306K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN2,461$101.37$249K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN1,000$100.05$100K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN600$98.74$59K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN230$104.47$24K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN2,889$103.68$300K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN2,816$102.77$289K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN2,361$101.55$240K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15SPLAN1,704$100.37$171K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTOJun 15MPLAN10,000$2.80$28K
BillionToOne, Inc.BLLNDavid TsaoCTODERIVNov 7J501,551——
BillionToOne, Inc.BLLNDavid TsaoCTODERIVNov 7J501,551——
BillionToOne, Inc.BLLNDavid TsaoCTODERIVNov 7J640,000——
BillionToOne, Inc.BLLNDavid TsaoCTODERIVNov 7J640,000——
BillionToOne, Inc.BLLNDavid TsaoCTODERIVNov 7J2,325,108$0.00—?
BillionToOne, Inc.BLLNDavid TsaoCTONov 7P1,000$60.00$60K
BillionToOne, Inc.BLLNDavid TsaoCTONov 7J2,325,108——
BillionToOne, Inc.BLLNDavid TsaoCTONov 7J2,325,108——
BillionToOne, Inc.BLLNDavid TsaoCTONov 7J2,325,108——