Sean Chihhsiang Chen

Sean Chihhsiang Chen appears in our data through filings on Ambiq Micro, Inc. shares, published by SEC (Form 4). Over a trading history stretching from 2 October 2025 to 14 October 2026, the count stands at 23 filings.

Sales make up the whole of the open-market record (17 sales, €3.1M). Besides market trades, the filings include 3 share grants and 3 option exercises. 2026 to date brings no purchases and 17 sales.

Most recently, on 16 October 2026, the filings show an open-market sale worth €94k in Ambiq Micro, Inc. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 2 days. Section 16 rules allow two business days to file each Form 4. Keep in mind that insiders sell for many reasons unrelated to the outlook, from tax bills to estate planning. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.