Rutten Guillaume Marie Jean

Director Rutten sells 50,000 shares of Amkor as stock rallies; mixed prior timing at this ticker.

Rutten Guillaume Marie Jean, a board member at Amkor, sold a significant stake on a day when the stock was trading near its 52-week high after a substantial recent rally. This marks his 18th open-market sale in the past three years, continuing a pattern of consistent liquidation with no offsetting open-market purchases during that window. His prior sales at Amkor show conflicting timing results: over a longer three-month horizon, all five prior exits preceded declines in the stock, suggesting solid exit timing on a longer timeframe; however, over the near term, those sales were mixed, with two preceding immediate gains in the stock. The company itself is profitable and growing rapidly, which could suggest Rutten is selling a fundamentally sound business rather than bailing out of a deteriorating situation. His persistent selling activity regardless of company performance or price level may reflect portfolio management or liquidity decisions unrelated to views on the business itself.

AMKR CEO Rutten sells 18,125 shares at $30.00; stock down 32.3% from 52-week high as annual revenue declines 8.3%.

Rutten Guillaume Marie Jean, President and CEO of Amkor Technology, sold 18,125 shares on 2024-09-16 at $30.00, reducing his holdings by -7.8% to 215.0K shares. The transaction occurs amid significant headwinds: the stock has declined 32.3% from its 52-week high of $44.68 and fallen 23.2% over the past 90 days, while the company reported annual revenue decline of -8.3%. His prior trades at AMKR tell a notable story: his two most recent sales (2024-08-15 and 2024-07-15) have yielded 30-day declines of -5.8% and -26.0% / -24.8% respectively, and across 2 measurable AMKR sales outcomes, 2 of 2 exhibited negative 90-day returns, suggesting prior timing accuracy at this specific stock. The current sale occurs as the stock trades -8.6% lower over the past 30 days from its $30.00 transaction price, placing it in territory consistent with his historical pattern of selling ahead of further weakness at this ticker.

AMKR CEO Rutten sold 25,000 shares at $32.56 on 2024-08-15; stock now -26.0% from 52-week high

Rutten Guillaume Marie Jean, as President and CEO, sold 25,000 shares (225.0K shares post-transaction) at $32.56, reducing his holdings by 10.0% on a single trade. The stock is currently trading -26.0% from its 52-week high of $44.68 and down 16.8% over the past 30 days, indicating deteriorating momentum. His cross-ticker track record shows 8 prior sells with a 20.00% well-timed rate (meaning only 20% of his open-market sells across all tickers preceded subsequent declines), suggesting limited predictive power historically. At AMKR specifically, his two most recent sells on 2024-07-15 posted 30-day declines of -26.0% and -24.8%, though 90-day outcomes remain unmeasurable; his earlier AMKR transactions show mixed timing (1 of 2 prior sells well-timed at the 90-day mark). The company's annual revenue declined 8.3% year-over-year and trades at a P/E of 21.61, but this single CEO sale, while notable as a reduction of insider exposure at a volatile price point, lacks sufficient pattern clarity or fundamental catalyst to signal material strategic repositioning.

AMKR CEO Rutten sells 25,000 shares for $1.1M; stock +42.3% in 90d but -8.3% revenue growth

Rutten Guillaume Marie Jean, President and CEO of AMKOR TECHNOLOGY, INC., executed 2 separate sales totaling 25,000 shares for $1,073,515.00 at a blended average price of $42.94 on 2024-07-15, reducing his holdings by 16.3% to 128,333 shares. The stock has appreciated 42.3% over the past 90 days and trades at $41.22, near its 52-week high of $44.68, even as the company reports annual revenue decline of -8.3% and a elevated P/E of 27.12 relative to net income of $58.9M on quarterly revenue of $1.4B. His prior 5 trades at AMKR show a pattern of 0 of 3 measurable 90-day outcomes being well-timed (stock rose after each sale), yet this latest sale occurs after a period of significant stock appreciation, suggesting execution timing independent of momentum. The transaction warrants observation given the tension between valuation and fundamental headwinds, though the CEO retains substantial holdings at 128.3K shares.

AMKR CEO Rutten sells 25,000 shares at $34.82; stock now $39.38. Same-ticker prior 5 sells showed 0 well-timed at 90-day.

Guillaume Marie Jean Rutten, as President and CEO, sold 25,000 shares (25.0K shares) at $34.82 on 2024-06-17 for $870,500.00 ($870.5K), reducing his holdings from 119.5K to 94.5K shares (-20.9%). The stock has since risen to $39.38, currently -1.8% from its 52-week high of $40.09, and up 20.1% over the past 30 days and 24.4% over 90 days. Examining his same-ticker trade history at AMKR, his prior 5 sells show a 0.00% well-timed rate at the 90-day mark—meaning none of those prior sales preceded a stock decline; instead, each time he sold, the stock subsequently rose. This transaction follows the same pattern: his June 17 sale at $34.82 appears to have missed the subsequent 20.1% monthly and 24.4% quarterly gains that followed.