The most recent ASE Technology Holding (ASX) insider transaction: Du-Tsuen Uang (Chief Administration Officer) sold 3,000 shares worth about $2.26Mn on Oct 12, 2026, reported on Form 4 on Oct 14, 2026. So far in the quarter ending Dec 31, 2026, insiders were net sellers of 3.00K shares.
Over the past year, ASX insiders sold $369.75 million of stock (770K shares) on the open market and bought none.
| # | Insider | Position | Direct | Indirect | Total | Share of Insiders | Last Filed |
|---|---|---|---|---|---|---|---|
| 1 | Chi-Wen Tsai | Chairman President, Spil | 15,598,000 | 0 | 15,598,000 | 30.2% | 09 Sep, 2026 |
| 2 | Tien-Yue Wu | Director | 8,277,473 | 0 | 8,277,473 | 16.0% | 09 Sep, 2026 |
| 3 | Chien Shen Chang | Director | 6,247,647 | 0 | 6,247,647 | 12.1% | 13 Apr, 2026 |
| 4 | Hung Pen Chang | Director | 4,800,000 | 0 | 4,800,000 | 9.3% | 24 Sep, 2026 |
| 5 | Raymond Lo | Gm Tw Kaohsiung Pkg Facility | 4,383,430 | 0 | 4,383,430 | 8.5% | 09 Sep, 2026 |
| 6 | Hung-Szu Tung | Chief Financial Officer | 4,202,954 | 0 | 4,202,954 | 8.1% | 09 Sep, 2026 |
| 7 | Jeffrey Chen | Director | 2,083,000 | 600,000 | 2,683,000 | 5.2% | 09 Sep, 2026 |
| 8 | Tien-Szu Chen | Gm, Ase Inc. Chung Li Branch | 2,551,821 | 0 | 2,551,821 | 4.9% | 09 Sep, 2026 |
| 9 | Hung-Ming Kuo | Principal Accounting Officer | 985,500 | 0 | 985,500 | 1.9% | 09 Sep, 2026 |
| 10 | Du-Tsuen Uang | Chief Administration Officer | 838,000 | 0 | 838,000 | 1.6% | 14 Oct, 2026 |
| 11 | Chih-Hsiao Chung | Gm, Ase Japan Wuxi Tongzhi | 425,000 | 0 | 425,000 | 0.8% | 09 Sep, 2026 |
| 12 | Andrew R Tang | Director | 310,000 | 0 | 310,000 | 0.6% | 09 Sep, 2026 |
| 13 | Chung Lin | Gm, Ase Shanghai Electronics | 170,278 | 0 | 170,278 | 0.3% | 09 Sep, 2026 |
| 14 | Kenneth Hsiang | Ceo, Ise Labs | 109,000 | 0 | 109,000 | 0.2% | 09 Sep, 2026 |
Each row is that insider’s most recently reported position, from Form 4 filings over the last 60 months — which is why this total does not tie to the quarterly series above, where a quarter counts only the insiders who filed in it. Shares held through a fund or institutional portfolio are counted on the institutional ownership page instead.
| Date | Insider | Position | Transaction | Shares | Price | Value | Shares Held After | Ownership |
|---|---|---|---|---|---|---|---|---|
| 12 Oct, 2026 | Du-Tsuen Uang | Chief Administration Officer | Disposed S | 3,000 | $752.00 | $2.26Mn | 838,000 | Direct |
| 22 Sep, 2026 | Hung Pen Chang | Director | Acquired M | 300,000 | $98.60 | $29.58Mn | 4,800,000 | Direct |
| 22 Sep, 2026 | Hung Pen Chang | Director | Disposed M | 300,000 | $0.00 | $0 | 1,200,000 | Direct |
| 07 Sep, 2026 | Tien-Yue Wu | Director | Acquired A | 600,000 | $0.00 | $0 | 8,277,473 | Direct |
| 07 Sep, 2026 | Andrew R Tang | Director | Acquired A | 85,000 | $0.00 | $0 | 310,000 | Direct |
| 07 Sep, 2026 | Jeffrey Chen | Director | Acquired A | 300,000 | $0.00 | $0 | 2,683,000 | Direct |
| 07 Sep, 2026 | Hung-Ming Kuo | Principal Accounting Officer | Acquired A | 50,000 | $0.00 | $0 | 985,500 | Direct |
| 07 Sep, 2026 | Tien-Szu Chen | Gm, Ase Inc. Chung Li Branch | Acquired A | 300,000 | $0.00 | $0 | 2,551,821 | Direct |
| 07 Sep, 2026 | Chi-Wen Tsai | Chairman President, Spil | Acquired A | 334,000 | $0.00 | $0 | 15,598,000 | Direct |
| 07 Sep, 2026 | Kenneth Hsiang | Ceo, Ise Labs | Acquired A | 40,000 | $0.00 | $0 | 109,000 | Direct |
| 07 Sep, 2026 | Du-Tsuen Uang | Chief Administration Officer | Acquired A | 90,000 | $0.00 | $0 | 841,000 | Direct |
| 07 Sep, 2026 | Hung-Szu Tung | Chief Financial Officer | Acquired A | 400,000 | $0.00 | $0 | 4,202,954 | Direct |
| 07 Sep, 2026 | Chung Lin | Gm, Ase Shanghai Electronics | Acquired A | 30,000 | $0.00 | $0 | 170,278 | Direct |
| 07 Sep, 2026 | Raymond Lo | Gm Tw Kaohsiung Pkg Facility | Acquired A | 400,000 | $0.00 | $0 | 4,383,430 | Direct |
| 07 Sep, 2026 | Chih-Hsiao Chung | Gm, Ase Japan Wuxi Tongzhi | Acquired A | 30,000 | $0.00 | $0 | 425,000 | Direct |
| 07 Sep, 2026 | Jeffrey Chen | Director | Disposed G | 600,000 | $0.00 | $0 | 2,083,000 | Direct |
| 07 Sep, 2026 | Jeffrey Chen | Director | Acquired G | 600,000 | $0.00 | $0 | 600,000 | Indirect |
| 12 Aug, 2026 | Chih-Hsiao Chung | Gm, Ase Japan Wuxi Tongzhi | Acquired M | 292,000 | $41.10 | $12.00Mn | 322,000 | Direct |
| 13 Aug, 2026 | Chih-Hsiao Chung | Gm, Ase Japan Wuxi Tongzhi | Acquired M | 73,000 | $41.10 | $3.00Mn | 395,000 | Direct |
| 12 Aug, 2026 | Chih-Hsiao Chung | Gm, Ase Japan Wuxi Tongzhi | Disposed M | 292,000 | $0.00 | $0 | 73,000 | Direct |