ASE Technology Holding's three largest insider shareholders as of May 04, 2026 are Chien Shen Chang (Director, 6.25Mn shares), Tien-Szu Chen (Gm, Ase Inc. Chung Li Branch, 2.25Mn shares), Jeffrey Chen (Director, 92.00K shares).
| Holder | Position | Shares (Direct) | Shares (Indirect) | Report Date |
|---|---|---|---|---|
| Chien Shen Chang | - | 6,247,647 | 0 | 13 Apr, 2026 |
| Tien-Szu Chen | Gm, Ase Inc. Chung Li Branch | 2,251,821 | 0 | 22 Apr, 2026 |
| Jeffrey Chen | - | 0 | 92,000 | 23 Apr, 2026 |
* Please note that the shares above only reflect shares from the fund portfolio and the institutional portfolio. Shares from the personal portfolio are excluded from this Institutional Ownership Page. See these insiders' latest transactions here on Insider Page.
| Transaction Date | Insider Name | Security Class | Transaction Type | Shares Traded | Price | Shares Remaining | Ownership | Code |
|---|---|---|---|---|---|---|---|---|
| 21 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $463.50 | 110,000 | I | S |
| 21 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $463.50 | 110,000 | I | S |
| 21 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $463.50 | 110,000 | I | S |
| 21 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $463.50 | 110,000 | I | S |
| 21 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $463.50 | 110,000 | I | S |
| 22 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $466.50 | 101,000 | I | S |
| 22 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $466.50 | 101,000 | I | S |
| 22 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $466.50 | 101,000 | I | S |
| 22 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $466.50 | 101,000 | I | S |
| 22 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $466.50 | 101,000 | I | S |
| 23 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $487.67 | 92,000 | I | S |
| 23 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $487.67 | 92,000 | I | S |
| 23 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $487.67 | 92,000 | I | S |
| 23 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $487.67 | 92,000 | I | S |
| 23 Apr, 2026 | Jeffrey Chen | Ordinary Shares | D | 9,000 | $487.67 | 92,000 | I | S |
| 20 Apr, 2026 | Tien-Szu Chen | Ordinary Shares | D | 328,000 | $465.11 | 2,453,821 | D | S |
| 20 Apr, 2026 | Tien-Szu Chen | Ordinary Shares | D | 328,000 | $465.11 | 2,453,821 | D | S |
| 20 Apr, 2026 | Tien-Szu Chen | Ordinary Shares | D | 328,000 | $465.11 | 2,453,821 | D | S |
| 20 Apr, 2026 | Tien-Szu Chen | Ordinary Shares | D | 328,000 | $465.11 | 2,453,821 | D | S |
| 20 Apr, 2026 | Tien-Szu Chen | Ordinary Shares | D | 328,000 | $465.11 | 2,453,821 | D | S |