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Fin
Echo
Markets
Dashboard
Search
Fear & Greed
Tools
Watchlist
Budget
Context
Upcoming
Notifications
Upcoming
Research
News
Market Events
Economy
New
SEC Filings
Finecho Content
New
ZHANG KER
Private
CIK: 1266870
Insider Of
2
Name & Role
Position
Tenure
Holdings
PTK ACQUISITION CORP.
Secretary
Since Jul 2020
—
AMBIQ MICRO, INC.
—
Since Jul 2025
—
PTK ACQUISITION CORP.
Position
Secretary
Tenure
Since Jul 2020
Holdings
—
AMBIQ MICRO, INC.
Position
—
Tenure
Since Jul 2025
Holdings
—