ASE Technology Holding Co., Ltd. (ASX) ownership: Top institutional holder: BlackRock, Inc. ($481.02M). Insider activity: Net Seller (0 buys, 20 sells). 2 recent congressional STOCK Act disclosures. SEC EDGAR first-party data.
| Holder | Shares | Market Value | Reported |
|---|---|---|---|
| BlackRock, Inc. | 22187464.00 | $481.02M | 2026-03-31 |
| LAZARD ASSET MANAGEMENT LLC | 13530133.00 | $293.33M | 2026-03-31 |
| UBS Group AG | 9283765.00 | $201.27M | 2026-03-31 |
| ACADIAN ASSET MANAGEMENT LLC | 7370434.00 | $159.77M | 2026-03-31 |
| BANK OF AMERICA CORP /DE/ | 6833380.00 | $148.15M | 2026-03-31 |
| MORGAN STANLEY | 6728209.00 | $145.87M | 2026-03-31 |
| GOLDMAN SACHS GROUP INC | 5845151.00 | $126.72M | 2026-03-31 |
| AMERICAN CENTURY COMPANIES INC | 5827413.00 | $126.34M | 2026-03-31 |
| Insider | Transaction | Value | Date |
|---|---|---|---|
| Sell | null | 2026-07-22 | |
| Sell | null | 2026-07-15 | |
| Sell | null | 2026-07-13 | |
| Sell | null | 2026-07-13 | |
| Sell | null | 2026-07-13 | |
| Sell | null | 2026-07-13 | |
| Sell | null | 2026-07-06 | |
| Sell | null | 2026-06-30 |
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Institutional data from SEC Form 13F. Insider data from SEC Form 4. Congressional data from STOCK Act disclosures. Not personalized investment advice.