Welcome to our dedicated page for ASE Technology SEC filings (Ticker: ASX), a comprehensive resource for investors and traders seeking official regulatory documents including 10-K annual reports, 10-Q quarterly earnings, 8-K material events, and insider trading forms.
ASE Technology Holding Co., Ltd. filings document foreign-issuer reporting for a Taiwan-based semiconductor assembly, testing and electronic manufacturing services company. Form 6-K reports include monthly unaudited net revenues, quarterly earnings materials, ATM revenue tables, segment results for packaging, testing, EMS and other operations, and related disclosures on capital expenditures, margins, customer concentration, credit lines and debt measures.
The company’s Form 20-F annual reporting covers audited financial statements, business risks and ADR-related disclosure for the ASX depositary receipts. Other filings and exhibits address shareholder meeting procedures, ADR holder proposal mechanics under the deposit agreement, governance notices, safe-harbor statements and risk factors tied to semiconductor demand cycles, competition, technology investment, environmental regulation, international operations and trade-policy exposure.
ASE Technology Holding Co., Ltd. insider Lee Tuck Weng Andrew, an officer serving as GM, USI Mexico, filed an initial Form 3 reporting his status as an insider of the company. This filing establishes his reporting obligations for future trades but does not list any share transactions.
ASE Technology Holding Co., Ltd. director Andrew R. Tang filed an initial ownership report showing both stock options and ordinary share holdings. He holds fully vested stock options to purchase 350,000 Ordinary Shares at an exercise price of 41.1000 per share, with these options expiring on November 22, 2028. He also directly owns 225,000 Ordinary Shares following this filing, giving a clear picture of his existing equity and option position rather than any new purchase or sale.
ASE Technology Holding Co., Ltd. executive Hsiang Kenneth, CEO of ISE Labs, filed an initial ownership report showing his current equity position. He holds stock options to purchase 250,000 Ordinary Shares at an exercise price of New Taiwan dollars 41.1000 per share, fully vested and exercisable and expiring on November 22, 2028. He also directly holds 69,000 Ordinary Shares.
ASE Technology Holding Co., Ltd. reported unaudited consolidated net revenues for February 2026. Net revenues were NT$52,097 million (US$1,653 million), down 13.2% from January 2026 but up 15.9% in NT$ terms and 20.3% in US$ terms versus February 2025.
The company’s ATM assembly, testing and material business generated NT$34,972 million (US$1,110 million) of net revenues in February 2026, a 7.1–7.2% decline from January 2026 but a strong year-over-year increase of 28.0% in NT$ and 32.8% in US$.
ASE Technology Holding Co., Ltd. reported unaudited consolidated net revenues for January 2026 of NT$ 59,989 million, up 21.3% year over year and 1.9% sequentially. In U.S. dollar terms, net revenues were US$ 1,906 million, increasing 26.5% year over year and 1.3% from December 2025.
The assembly, testing and material business generated January 2026 net revenues of NT$ 37,639 million, a 33.8% year-over-year rise and slightly higher than December 2025 by 0.1%. In U.S. dollars, this segment delivered US$ 1,196 million, up 39.5% year over year, with a small sequential decline of 0.4%.
ASE Technology Holding Co., Ltd. reports strong growth for 2025, driven by AI-related demand and advanced packaging and testing services. Consolidated net revenues reached NT$645,388 million, up 8% year over year, with gross profit up 18% to NT$114,193 million and operating income up 30% to NT$50,756 million. Net income attributable to shareholders rose 25% to NT$40,658 million, with basic EPS increasing from NT$7.52 to NT$9.37.
In Q4 2025, total net revenues were NT$177,915 million, up 10% year over year, while net income attributable to shareholders jumped 58% to NT$14,713 million; diluted EPS was NT$3.24. Packaging and testing operations delivered 2025 revenues of NT$389,228 million, up 19% year over year, with operating margin improving to 11.3%, while EMS full-year revenues declined 5%.
In US dollar terms, 2025 consolidated revenue grew 12%, with LEAP services rising to US$1.6 billion (13% of revenue) from US$0.6 billion, and testing revenue up 36% year over year. Management expects the revenue uptrend to extend into 2026 and beyond, with LEAP services projected to double to US$3.2 billion, though Q1 2026 consolidated revenue and margins are expected to decline sequentially.
ASE Technology Holding delivered stronger results for both the fourth quarter and full year of 2025. For 4Q25, net revenues reached NT$177,915 million, up 9.6% year-over-year and 5.5% from the prior quarter. Net income attributable to shareholders rose to NT$14,713 million, compared with NT$9,312 million a year earlier, lifting basic earnings per share to NT$3.37.
For the full year 2025, ASE Technology reported net revenues of NT$645,388 million and net income attributable to shareholders of NT$40,658 million. Full-year basic earnings per share were NT$9.37, with EBITDA of NT$38,344 million in 4Q25 highlighting solid cash-generating capacity alongside growth in both packaging and testing activities.
ASE Technology Holding Co., Ltd. reports unaudited consolidated net revenues for December, the fourth quarter, and full year 2025, showing solid growth year over year. December consolidated net revenues were NT$58,865 million, up 11.3% from December 2024 (US$1,880 million, up 15.3%). Fourth-quarter 2025 consolidated net revenues reached NT$177,915 million, a 9.6% increase from a year earlier (US$5,763 million, up 14.2%). Full-year 2025 consolidated net revenues were NT$645,388 million, up 8.4% from 2024 (US$20,782 million, up 11.8%).
The ATM assembly, testing and material business was a key growth driver. December 2025 ATM net revenues were NT$37,586 million, 25.9% higher than a year earlier (US$1,201 million, up 30.4%). Fourth-quarter 2025 ATM net revenues were NT$109,707 million, up 24.2% year over year (US$3,553 million, up 29.3%), and full-year 2025 ATM net revenues rose to NT$389,228 million, 19.4% above 2024 (US$12,539 million, up 23.2%).
ASE Technology Holding Co., Ltd. reported unaudited consolidated net revenues for November 2025 of NT$58,820 million, down from NT$60,231 million in October 2025 but up from NT$52,933 million in November 2024. This represents a sequential decline of 2.3% and a year-over-year increase of 11.1%. In U.S. dollars, net revenues were US$1,903 million, compared with US$1,980 million in October 2025 and US$1,648 million a year earlier, a sequential change of -3.9% and year-over-year growth of 15.5%.
Net revenues from the company’s ATM (assembly, testing and material) business for November 2025 were NT$36,082 million, slightly above NT$36,039 million in October 2025 and up from NT$29,185 million in November 2024, a sequential change of +0.1% and year-over-year growth of 23.6%. In U.S. dollars, ATM net revenues were US$1,167 million, versus US$1,185 million in October 2025 and US$909 million in November 2024, corresponding to a sequential change of -1.5% and year-over-year growth of 28.5%.
ASE Technology Holding reported unaudited consolidated net revenues of NT$60,231 million for October 2025. That was -0.5% from September 2025 and +6.7% year over year. In U.S. dollars, net revenues were $1,980 million, down 0.8% sequentially and up 12.1% year over year.
The company’s ATM (assembly, testing and material) business generated NT$36,039 million, up 3.0% from September and 22.9% year over year. In U.S. dollars, ATM revenue was $1,185 million, up 2.7% sequentially and 29.1% year over year. These figures are unaudited and provided to meet Taiwan regulatory requirements.