Rutten Guillaume Marie Jean Insider Trading Activity
Rutten Guillaume Marie Jean has been net-selling over the last 12 months with 0 purchases and 10 sales across 1 company.
AMKR is the most-traded position with 10 trades. The largest single transaction was a sale of AMKR for $3.7M on May 8, 2026.
Performance Scorecard
Forward stock performance after each transaction by Rutten Guillaume Marie Jean. Buy returns measure price movement after open-market purchases; sell-avoided measures the loss avoided after open-market sales. Success rate counts trades where the insider's direction was right.
| PERIOD | AVG BUY RETURN | AVG SELL AVOIDED | SUCCESS RATE | TRADES |
|---|---|---|---|---|
| 30 days | — | -2.3% | 38% | 8 |
| 90 days | — | -29.0% | 25% | 8 |
| 120 days | — | -59.9% | 0% | 7 |
Performance based on stock price movement after each transaction date. Past results do not predict future returns. Not financial advice.
Price & Trades
Pro: Trade MarkersAMKR · AMKOR TECHNOLOGY, INC.
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Upgrade to ProRecent Trades
| DATE | TICKER | TYPE | SHARES | PRICE | VALUE | Δ OWNED | ROLE | FILING |
|---|---|---|---|---|---|---|---|---|
Aug 6, 2026 | AMKR | Sell | 25,000 | $54.50 | $1.4M | −5.1% | Director | |
Aug 5, 2026 | AMKR | Sell | 25,000 | $55.35 | $1.4M | −4.9% | Director | |
May 8, 2026 | AMKR | Sell | 50,000 | $74.28 | $3.7M | −9.0% | Director | |
Feb 24, 2026 | AMKR | Sell | 20,000 | $48.80 | $976K | −3.5% | Director | |
Feb 17, 2026 | AMKR | Sell | 10,000 | $45.89 | $459K | −2.9% | Director | |
Jan 15, 2026 Filed 3d late | AMKR | Sell | 10,000 | $53.14 | $531K | −2.9% | Director | |
Dec 15, 2025 | AMKR | Sell | 10,000 | $44.80 | $448K | −2.9% | CEO | |
Nov 17, 2025 | AMKR | Sell | 10,000 | $31.68 | $317K | −2.8% | CEO | |
Oct 15, 2025 | AMKR | Sell | 10,000 | $30.74 | $307K | −2.7% | CEO | |
Sep 23, 2025 | AMKR | Sell | 10,000 | $30.00 | $300K | −2.7% | CEO |
Top Companies Traded
| TICKER | COMPANY | TRADES | TOTAL VOLUME |
|---|---|---|---|
| AMKR | AMKOR TECHNOLOGY, INC. | 10 | $9.8M |
Other insiders at AMKOR TECHNOLOGY, INC.
2 other tracked filers at AMKR.