Chen Sean Chihhsiang — SEC Form 4 Insider Trading Activity

Summary

Updated Jul 16, 2026

Chen Sean Chihhsiang has filed 1 SEC Form 4 filing across 1 company in the last 90 days — selling. Lifetime open-market sales: $3.95M.

Profile

Chen Sean Chihhsiang
RoleInsider
Notability20/100

Board memberships

Recent Transactions

DateTickerCompanyCodeSharesPriceValue
2026-05-18AMBQAmbiq Micro, Inc.S — Open-market sale23.3K$71.37$1.67M
2026-05-18AMBQAmbiq Micro, Inc.S — Open-market sale32.4K$70.53$2.28M
2026-05-18AMBQAmbiq Micro, Inc.M — Option exercise55.7K$5.88$327K
2026-04-02AMBQAmbiq Micro, Inc.A — Grant or award64.2K$0.00
2026-03-10AMBQAmbiq Micro, Inc.A — Grant or award64.2K$0.00
2025-10-02AMBQAmbiq Micro, Inc.A — Grant or award56.0K$0.00

Companies — Last 90 Days

Frequently Asked Questions

Who is Chen Sean Chihhsiang?

Chen Sean Chihhsiang is a corporate insider — currently tracked as Insider of Ambiq Micro, Inc. (AMBQ). InsiderAlpha tracks every SEC Form 4 filing in real time.

How many SEC Form 4 filings has Chen Sean Chihhsiang submitted recently?

1 primary Form 4 filings in the last 90 days, covering 1 company.

Has Chen Sean Chihhsiang been buying or selling stock?

Recorded transactions: 0 open-market purchases () and 2 open-market sales ($3.95M) across all tracked filings.

Where can I see all of Chen Sean Chihhsiang's SEC filings?

All Form 4 filings, transaction values, and 10b5-1 plan flags are listed on this page and updated in real time as new SEC EDGAR filings are processed.

Learn More

Open the live Chen Sean Chihhsiang profile on InsiderAlpha for real-time alerts, AI-scored trade ideas, and full transaction history.