ASE Technology Holding Co., Ltd. (ASX) Major Shareholders
ASE Technology Holding shareholders at a glance
The largest holder of ASE Technology Holding stock is JC International Holdings Ltd., with 684.3 million shares (15.31% of the company), worth about $12.60 billion as of September 25, 2026. The 10 largest holders together own 30.4%.
In Q2 2026, 516 institutional holdings reports listed 153.0 million shares worth $9.45 billion, down 2.5% in shares from Q1 2026.
Major holders as of September 25, 2026; quarterly totals from institutional holdings reports (latest Q2 2026).
ASE Technology Holding Co., Ltd.
Shareholders Summary
2026Q2
Ownership by Type
Geographic Distribution
Largest ASE Technology Holding shareholders
| Holder | Shares | % of company | Value |
|---|---|---|---|
| JC International Holdings Ltd. | 684.3 million | 15.31% | $12.6B |
| Value Tower Ltd. | 265.0 million | 5.93% | $4.9B |
| Hung Pen Chang2.878 % | 128.7 million | 2.88% | $2.4B |
| Brilliant Capital Profits Ltd. | 120.6 million | 2.70% | $2.2B |
| Labor Pension Fund Supervisory Committee | 62.8 million | 1.41% | $1.2B |
| Bank of Taiwan Government Employee & School Staff Insurance | 48.9 million | 1.09% | $900.0M |
| Chi Wen Tsai0.3489 % | 15.6 million | 0.35% | $287.0M |
| Goldman Sachs Asset Management International | 12.4 million | 0.28% | $228.0M |
| Fidelity Management & Research (Hong Kong) Ltd. | 12.1 million | 0.27% | $223.0M |
| Tien Yu Wu0.1852 % | 8.3 million | 0.19% | $152.0M |
As of September 25, 2026.
ASE Technology Holding institutional holdings by quarter
| Quarter | Reports | Shares | Value |
|---|---|---|---|
| Q2 2026 | 516 | 153.0 million | $9.5B |
| Q1 2026 | 391 | 157.0 million | $3.4B |
| Q4 2025 | 338 | 163.0 million | $2.6B |
| Q3 2025 | 314 | 167.0 million | $1.9B |
| Q2 2025 | 290 | 170.0 million | $1.8B |
| Q1 2025 | 304 | 177.0 million | $1.6B |
| Q4 2024 | 298 | 167.0 million | $1.7B |
| Q3 2024 | 295 | 162.0 million | $1.6B |
Shares and value held by institutions that file quarterly holdings reports (options not included).
Questions and answers
Who owns the most ASE Technology Holding stock?
JC International Holdings Ltd., with 15.31% of the company (as of September 25, 2026). Next: Value Tower Ltd. (5.93%) and Hung Pen Chang2.878 % (2.88%).
How many institutions own ASE Technology Holding stock?
516 institutional holdings reports listed ASE Technology Holding shares in Q2 2026, 153.0 million shares in all worth $9.45 billion.
