ASE Technology Holding Co., Ltd.
Business
ASE Technology Holding Co., Ltd. is a leading global provider of semiconductor assembly, testing, and interconnect material manufacturing services, serving fabless design companies, integrated device manufacturers, and foundries. The company offers a comprehensive range of packaging solutions (flip-chip, wafer-level, substrate-based, and advanced 3D/heterogeneous integration packages), semiconductor testing services (front-end engineering, wafer probing, final testing), and electronic manufacturing services through its USI Group subsidiary. Operations span manufacturing centers across Taiwan, Southeast Asia, China, South Korea, Japan, North America, Mexico, and Europe, with strategic alliances including a long-term partnership with TSMC.
Summary from 20-F filed 2026-04-01
Financials
Latest annual snapshot (FY2025, period end 2025-12-31). Full statement history unavailable for this entity.
| Revenue | — |
| Net income | $1.31B |
| Total assets | $28.36B |
| Total liabilities | $16.60B |
| Stockholders' equity | — |
| Operating cash flow | — |
Filings
Material Events
Insiders
Institutional Holders
Frequently asked questions
What is ASE Technology Holding Co., Ltd.'s CIK number?
ASE Technology Holding Co., Ltd.'s SEC CIK number is 0001122411 (1122411). The CIK (Central Index Key) is the permanent identifier the SEC assigns to every EDGAR filer — unlike a ticker symbol, it never changes.
Where can I find ASE Technology Holding Co., Ltd.'s SEC filings?
All of ASE Technology Holding Co., Ltd.'s EDGAR filings — 10-K annual reports, 10-Q quarterly reports, 8-K material events, and insider transactions — are listed on this page, sourced live from SEC EDGAR.