ASE Technology (ASX) insider trading
17 directors and officers declare holding shares of ASE Technology (ASX), each in their own filing with the SEC. The largest is Chien Shen Chang (Director) with 477.8M shares, 21.5% of the company, worth $22.2B at the last close. The most recent move on file: Hung Pen Chang bought 300,000 shares at $98.60 on Sep 22, 2026. Of the 14 with a trade on file, 14 last bought and 0 last sold. Purchases and sales are as reported on Forms 3, 4 and 5 — the SEC counts private transactions too, and many large sales follow a plan arranged in advance. Holdings are never added up: two spouses often report the same shares, and a joint filing carries a fund's.
| Insider | Role | Shares | % of company | Value | Last trade on file | Filed |
|---|---|---|---|---|---|---|
| Chien Shen Chang | Director | 477.8M | 21.5% | $22.2B | bought 4.5M shares at $41.10 on Apr 9, 2026 | Apr 9, 2026 |
| Hung Pen Chang | Director | 64.5M | 2.9% | $3.0B | bought 300,000 shares at $98.60 on Sep 22, 2026 | Sep 22, 2026 |
| Chi-Wen Tsai | Chairman & President, SPIL | 7.8M | 0.35% | $362.1M | bought 334,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Tien-Yue Wu | Director | 4.1M | 0.19% | $192.2M | bought 600,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Hung-Szu Tung | Chief Financial Officer | 2.3M | 0.10% | $104.8M | bought 400,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Raymond Lo | GM TW & Kaohsiung Pkg Facility | 2.2M | 0.10% | $101.8M | bought 400,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Jeffrey Chen | Director | 1.3M | 0.06% | $62.3M | bought 300,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Tien-Szu Chen | GM, ASE Inc. Chung-Li Branch | 1.3M | 0.06% | $59.2M | bought 300,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Hung-Ming Kuo | Principal Accounting Officer | 492,750 | 0.02% | $22.9M | bought 50,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Du-Tsuen Uang | Chief Administration Officer | 420,500 | 0.02% | $19.5M | bought 90,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Chih-Hsiao Chung | GM, ASE Japan & Wuxi Tongzhi | 212,500 | <0.01% | $9.9M | bought 30,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Chen-Yen Wei | Chairman, USI Co., Ltd. | 183,058 | <0.01% | $8.5M | — | Mar 18, 2026 |
| Andrew R. Tang | Director | 155,000 | <0.01% | $7.2M | bought 85,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Meng-Hui Lin | GM, UGT (Shanghai) Co., Ltd | 120,235 | <0.01% | $5.6M | — | Mar 18, 2026 |
| Chung Lin | GM, ASE Shanghai & Electronics | 85,139 | <0.01% | $4.0M | bought 30,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Kenneth Hsiang | CEO, ISE Labs | 54,500 | <0.01% | $2.5M | bought 40,000 shares on Sep 7, 2026 | Sep 7, 2026 |
| Shen-Fu Yu | Director | 1,194 | <0.01% | $55,437.42 | — | Mar 18, 2026 |
Each insider at ASE Technology
- Chien Shen Chang — Director
- Hung Pen Chang — Director
- Chi-Wen Tsai — Chairman & President, SPIL
- Tien-Yue Wu — Director
- Hung-Szu Tung — Chief Financial Officer
- Raymond Lo — GM TW & Kaohsiung Pkg Facility
- Jeffrey Chen — Director
- Tien-Szu Chen — GM, ASE Inc. Chung-Li Branch
- Hung-Ming Kuo — Principal Accounting Officer
- Du-Tsuen Uang — Chief Administration Officer
- Chih-Hsiao Chung — GM, ASE Japan & Wuxi Tongzhi
- Chen-Yen Wei — Chairman, USI Co., Ltd.
What insiders bought and sold across AI stocks · All filings on sec.gov