TSAO DAVID

PrivateCIK: 2087127
Location

MENLO PARK, CA

Senior insider sale

Chief Technology Officer at BILLIONTOONE, INC. — senior position signals high conviction

$2.05M

20K shares

What this filing means

TSAO DAVID plans to sell 20K shares of BILLIONTOONE, INC. valued at approximately $2.05M. Form 144 is a notice of intent to sell restricted or control securities — not a mandatory transaction. This filing provides advance warning of potential selling pressure.

InsiderTSAO DAVIDCIK 2087127
IssuerBILLIONTOONE, INC.CIK 2070849
DirectorOfficer· Chief Technology Officer
Since Nov 2025
20K
Shares to sell
$2.05M
Approx. market value
20K
Acquired (3 months)
1
Planned
Securities Acquired — Last 3 Months1
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Stock Option Exercise

Cash

6/15/2026
20K
Total acquired20K
Planned & Completed Dispositions1
Sort
NASDAQPlanned

Units to sell

20K

Market value

$2.05M

6/15/2026
Total

Units

20K

Value

$2.05M

TSAO DAVID — Planned Insider Sale (Form 144) | Finecho