Fusen Ernie Chen

Filings by Fusen Ernie Chen span 4 companies, the busiest being Kulicke & Soffa Industries Inc, Novellus Systems Inc and Mattson Technology Inc. Over a trading history stretching from 21 April 2006 to 20 November 2025, the count stands at 226 filings.

In open-market terms, that means 66 purchases worth €450k on one side and 49 sales worth €27.4M on the other. On balance, insiders were net sellers of €26.9M. Open-market purchases are the filings investors watch most closely, because the insider pays for the shares out of pocket. Outside the open market, there are 41 share grants and 61 option exercises.

A typical purchase (the median) is worth €1,439. Across 59 purchases, this insider has always bought alone, with no colleague buying within 30 days.

The record was last updated on 24 November 2025 with an option exercise in Kulicke & Soffa Industries Inc. The last purchase on record was published on 21 November 2016, which is 3,623 days ago. Between a trade and the moment it shows up on SEC (Form 4), the median delay is 3 days. For comparison, the SEC allows two business days to file a Form 4. Source: insider filings from SEC (Form 4). Past trades are no guide to future returns.