7 insiders reported 46 Form 4 transactions for ASE Technology Holding Co., Ltd. (ASX) over the past 18 months (most recent 2026-08-19). Recent activity: Chung Chih-Hsiao (GM, ASE Japan & Wuxi Tongzhi) Buy 292,000 shares, Chung Chih-Hsiao (GM, ASE Japan & Wuxi Tongzhi) Buy 73,000 shares, Lin Chung (GM, ASE Shanghai & Electronics) Buy 25,000 shares, Lin Chung (GM, ASE Shanghai & Electronics) Buy 10,000 shares, Uang Du-Tsuen (Chief Administration Officer) Sell 3,000 shares. Source: SEC Form 4.
| Date | Insider | Title | Type | Shares | Value |
|---|---|---|---|---|---|
| 2026-08-19 | Chung Chih-Hsiao | GM, ASE Japan & Wuxi Tongzhi | Buy | 292,000 | $12.0M |
| 2026-08-19 | Chung Chih-Hsiao | GM, ASE Japan & Wuxi Tongzhi | Buy | 73,000 | $3.0M |
| 2026-07-31 | Lin Chung | GM, ASE Shanghai & Electronics | Buy | 25,000 | $1.0M |
| 2026-07-31 | Lin Chung | GM, ASE Shanghai & Electronics | Buy | 10,000 | $986,000 |
| 2026-07-24 | Uang Du-Tsuen | Chief Administration Officer | Sell | 3,000 | $2.0M |
| 2026-07-17 | Uang Du-Tsuen | Chief Administration Officer | Sell | 3,000 | $2.1M |
| 2026-07-15 | Chang Hung Pen | Director | Buy | 3.0M | $123.3M |
| 2026-07-15 | Chang Hung Pen | Director | Buy | 1.5M | $147.9M |
| 2026-07-08 | Uang Du-Tsuen | Chief Administration Officer | Sell | 2,000 | $1.4M |
| 2026-07-02 | Uang Du-Tsuen | Chief Administration Officer | Sell | 3,000 | $2.0M |
| 2026-07-02 | Uang Du-Tsuen | Chief Administration Officer | Sell | 2,000 | $1.4M |
| 2026-07-02 | Uang Du-Tsuen | Chief Administration Officer | Sell | 3,000 | $2.1M |
| 2026-06-23 | Uang Du-Tsuen | Chief Administration Officer | Sell | 3,000 | $1.8M |
| 2026-06-23 | Uang Du-Tsuen | Chief Administration Officer | Sell | 5,000 | $3.3M |
| 2026-06-23 | Uang Du-Tsuen | Chief Administration Officer | Sell | 3,000 | $2.1M |
| 2026-06-03 | Uang Du-Tsuen | Chief Administration Officer | Sell | 5,000 | $3.0M |
| 2026-06-03 | Uang Du-Tsuen | Chief Administration Officer | Sell | 5,000 | $3.1M |
| 2026-05-27 | Chen Jeffrey | Director | Sell | 9,000 | $4.8M |
| 2026-05-27 | Chen Jeffrey | Director | Sell | 9,000 | $5.3M |
| 2026-05-27 | Chen Jeffrey | Director | Sell | 9,000 | $5.7M |
| 2026-05-27 | Chen Jeffrey | Director | Sell | 2,000 | $1.3M |
| 2026-05-21 | Chen Jeffrey | Director | Sell | 9,000 | $4.3M |
| 2026-05-21 | Chen Jeffrey | Director | Sell | 9,000 | $4.3M |
| 2026-05-21 | Chen Jeffrey | Director | Sell | 9,000 | $4.5M |
| 2026-05-18 | Chen Jeffrey | Director | Sell | 9,000 | $5.0M |
Source: SEC Form 4 filings · as of 2026-08-19