ASX ASE Technology Holding Co., Ltd. Insider Trading

ASX Chief Admin Officer Du-Tsuen Uang sells 10,000 shares for $6,120,000 across 2 transactions

Du-Tsuen Uang, Chief Administration Officer, executed 2 separate sales totaling 10,000 shares for $6,120,000 on June 1 and June 3, 2026, at blended average price of $612.00, reducing holdings from 788,000 to 778,000 shares (-1.3% vs pre-transaction holdings). The current price of $39.26 is substantially below both transaction prices and the 52-week high of $41.10. The stock has appreciated 77.6% over the past 90 days, suggesting the executive sold during a strong price appreciation window. This modest reduction in a large position warrants observation for any emerging pattern of dispositions.

Director Jeffrey Chen sold entire 29.0K share position for $17.1M across 4 sales (May 22-27); complete exit at blended $590.62/share.

Jeffrey Chen, Director at ASE Technology Holding Co., Ltd., executed 4 separate sales totaling 29,000 shares for $17,128,000.00 between May 22–27, 2026, reducing his holdings from 29,000 shares to 0 shares (a complete exit). The transactions occurred at prices ranging from $538.00 to $653.00, with a blended average of $590.62. Across his 10 prior open-market sales at other tickers, Chen's trades have shown a 90-day well-timed rate of 100.00%, and notably, all 5 prior sales at ASX itself have posted negative 90-day returns (-93.3%, -93.1%, -93.0%, -92.9%, and -92.7% respectively), indicating those exits preceded subsequent declines. The current price of $38.95 is -1.6% from the 52-week high of $39.57 and represents a substantial divergence from the transaction prices of $538–$653.

Director Jeffrey Chen sold 27,000 shares (27.0K) for $13,185,000.00 across 3 days; prior 5 trades at ASX all well-timed, 100% accuracy rate

Jeffrey Chen executed 3 separate sales totaling 27,000 shares for $13,185,000.00 at prices of $483.00, $477.00, and $505.00 on consecutive trading days, reducing his position by 48.2% from 56,000 to 29,000 shares. His track record at ASX is notable: all 5 prior sales at this ticker posted negative 90-day returns (ranging -92.2% to -93.3%), indicating a 100% well-timed rate at this specific ticker. His cross-ticker track record shows an avg 90d return of -92.5% across 10 prior sells with a 100.00% well-timed rate. The recent stock movement (current price $31.69, down -11.3% from the 52-week high of $35.71) and Chen's repeated pattern of selling at elevated price levels before subsequent declines represent a consistent execution pattern worth investor observation.

Director Jeffrey Chen sells 27,000 shares for $14,661,000.00 ($14.7M) across 3 transactions; 90d track record 100.00% well-timed at ASX

Jeffrey Chen executed 3 separate sales totaling 27,000 shares for $14,661,000.00 on 2026-05-14, 2026-05-15, and 2026-05-18, reducing his ASX holdings by 32.5% from 83,000 to 56,000 shares. His prior 5 trades at this ticker have all been well-timed at the 90-day mark, with negative returns ranging from -92.2% to -93.3% after each sale. His cross-ticker track record shows a 100.00% well-timed rate across 10 prior sells with an average 90d return of -92.5%. The current stock price of $31.69 is -11.3% from the 52-week high and has gained 8.2% over 30 days and 36.7% over 90 days, yet this decline pattern aligns with his historical execution pattern rather than current momentum.