Rutten Guillaume Marie Jean
SEC Form 4 insider trading activity
Rutten Guillaume Marie Jean has filed 16 SEC Form 4 filings (21 transaction rows) across 1 company, with disclosures dating back to 2025. 16 of those filings fall inside the rolling window. Most recent filing: Aug 7, 2026.
On the most recent filing, Rutten Guillaume Marie Jean is listed as Director at AMKOR TECHNOLOGY, INC. Inside the rolling window, Rutten Guillaume Marie Jean reported no open-market purchases and 10 open-market sales totaling $9.8M in AMKR. The largest disclosed transaction in the window is a sale of 50,000 AMKR shares on May 8, 2026, worth $3.7M.
Companies traded
Other insiders at AMKR
Insider Buying
$0
reported purchases (SEC code P)
Insider Selling
$9.8M
reported sales (SEC code S)
Companies
1
in the rolling window
| Source | |||||||
|---|---|---|---|---|---|---|---|
| AMKR | Director | Sale | 25,000 | $1.4M | Aug 7 | SEC ↗ | |
| AMKR | Director | Sale | 25,000 | $1.4M | Aug 7 | SEC ↗ | |
| AMKR | Director | Sale | 50,000 | $3.7M | May 12 | SEC ↗ | |
| AMKR | Director | Sale | 20,000 | $976K | Feb 26 | SEC ↗ | |
| AMKR | Director | Sale | 10,000 | $459K | Feb 18 | SEC ↗ | |
| AMKR | Director | Sale | 10,000 | $531K | Jan 20 | SEC ↗ | |
| AMKR | President and CEO | Sale | 10,000 | $448K | Dec 17 | SEC ↗ | |
| AMKR | President and CEO | Sale | 10,000 | $317K | Nov 19 | SEC ↗ | |
| AMKR | President and CEO | Sale | 10,000 | $307K | Oct 17 | SEC ↗ | |
| AMKR | President and CEO | Sale | 10,000 | $300K | Sep 23 | SEC ↗ |
Frequently asked questions
How many SEC Form 4 filings has Rutten Guillaume Marie Jean made?
Rutten Guillaume Marie Jean has filed 16 SEC Form 4 filings (21 transaction rows) across 1 company since 2025.
Which companies does Rutten Guillaume Marie Jean trade?
Rutten Guillaume Marie Jean has filed SEC Form 4 disclosures for 1 company, including AMKR.
When was Rutten Guillaume Marie Jean's most recent SEC Form 4 filing?
Rutten Guillaume Marie Jean's most recent SEC Form 4 filing on Tracefour is dated Aug 7, 2026.
What is Rutten Guillaume Marie Jean's total buy and sell value in the current window?
Inside the rolling retention window, Rutten Guillaume Marie Jean bought $0 and sold $9.8M based on SEC Form 4 filings.
What was Rutten Guillaume Marie Jean's largest disclosed transaction?
The largest disclosed transaction in the current window is a sale of 50,000 AMKR shares on 2026-05-08, worth $3.7M, per SEC Form 4 filings.