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. director Jeffrey Chen reported open-market sales of a total of 27,000 Ordinary Shares indirectly held through his spouse. The sales occurred on May 14, May 15 and May 18 at prices between NT$506.0000 and NT$563.0000 per share. After these transactions, he continues to hold 56,000 Ordinary Shares indirectly through his spouse and 2,383,000 Ordinary Shares directly. The filing notes that he disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. filed an amended Form 6-K mainly to correct clerical errors and reported unaudited April 2026 revenues. Consolidated net revenues were NT$62,247 million (US$1,957 million), up 1.1% from March 2026 and 19.2% year over year.
Net revenues from the ATM assembly, testing and material business reached NT$40,502 million (US$1,274 million), rising 1.7% sequentially and 29.3% year over year. The company also included a detailed safe harbor notice highlighting industry cyclicality, regulatory changes, geopolitical tensions and other factors that can cause actual results to differ from forward-looking statements.
ASE Technology Holding Co., Ltd. reported unaudited consolidated net revenues for April 2026 of NT$62,247 million (about US$1,957 million). This was a modest increase from March 2026 and a strong rise from April 2025.
Net revenues rose 1.1% sequentially in NT$ terms and 0.4% in US$ terms, while year-over-year growth reached 19.2% in NT$ and 23.1% in US$. The ATM assembly, testing and material business delivered NT$40,502 million (US$1,274 million), up 1.7% sequentially and 29.3% year-over-year in NT$, underscoring particularly strong growth in this segment.
ASE Technology Holding Co., Ltd. reported solid first quarter 2026 results with clear year-on-year growth. Consolidated net revenues reached NT$173,662 million, down 2% from the prior quarter but up 17% from a year earlier. Gross profit was NT$34,850 million, giving a gross margin of 20.1%, compared with 16.8% in the first quarter of 2025.
Net income attributable to shareholders of the parent was NT$14,148 million, up 87% year over year, with basic EPS of NT$3.24 and diluted EPS of NT$3.08. Operating margin improved to 10.1%, versus 6.5% a year earlier. The ATM segment delivered NT$112,434 million of revenue with a 26.0% gross margin, while EMS revenue was NT$61,875 million with a 9.5% gross margin.
On the balance sheet, cash and cash equivalents were NT$87,811 million as of March 31, 2026, and total assets were NT$957,527 million. Net debt to equity ratio improved to 0.40 from 0.46. Management expects second quarter 2026 consolidated revenue to grow by 7%–9% quarter over quarter, with higher gross and operating margins, ATM revenue growth of 9%–11% quarter over quarter, and EMS revenue growth of at least 10% year over year.
ASE Technology Holding reported strong first-quarter 2026 results with unaudited consolidated net revenues of NT$173,662 million, up 17.2% year-over-year and slightly down 2.4% from the prior quarter. Net income attributable to shareholders was NT$14,148 million, up from NT$7,554 million a year earlier and modestly below NT$14,713 million in the previous quarter.
Basic earnings per share were NT$3.24, compared with NT$1.75 in 1Q25 and NT$3.37 in 4Q25. EBITDA reached NT$38,165 million, compared with NT$27,628 million in 1Q25. The ATM segment generated net revenues of NT$112,434 million and operating income of NT$15,877 million, while the EMS segment delivered net revenues of NT$61,875 million and operating income of NT$1,906 million.
Total assets rose to NT$957,527 million as of March 31, 2026, with equity attributable to shareholders of NT$350,617 million. The net debt to equity ratio improved to 0.40. Operating activities provided NT$36,387 million of cash, while capital expenditures of NT$44,092 million led to a small decrease in cash and cash equivalents to NT$87,811 million.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported insider activity involving the company’s Ordinary Shares. On April 24, 2026, an open-market sale of 9,000 Ordinary Shares was executed at NT$473 per share, from shares held indirectly by his spouse. After this transaction, 83,000 Ordinary Shares remained under indirect ownership by his spouse, while a separate entry shows 2,383,000 Ordinary Shares held directly following a holding line dated the same day. A footnote states that the reporting person disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported indirect open-market sales of the company’s Ordinary Shares held by his spouse. Across three transactions on April 21–23, 2026, a total of 27,000 shares were sold at prices between NT$463.5000 and NT$487.6667 per share. Following these sales, indirect holdings stood at 92,000 Ordinary Shares, while a separate direct holding entry shows 2,383,000 Ordinary Shares as of April 21, 2026. A footnote states the reporting person disclaims beneficial ownership except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. GM of the ASE Inc. Chung-Li Branch, Chen Tien-Szu, reported open-market sales of a total of 530,000 Ordinary Shares on April 20, 2026. The shares were sold in several trades at prices including 471, 467, and 466 New Taiwan Dollars per share, with a large block at a weighted average of 465.1067 New Taiwan Dollars per share. After these sales, Chen continues to hold more than 2.25 million Ordinary Shares directly.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported that his spouse conducted open-market sales of a total of 27,000 Ordinary Shares, split into 9,000-share trades on three dates at prices between 446 and 461.5 New Taiwan Dollars per share. These transactions are reported as indirect ownership "By Spouse," with 119,000 indirectly held Ordinary Shares remaining afterward. Chen also reports direct ownership of 2,383,000 Ordinary Shares as of April 16, 2026, and disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported a series of indirect open-market sales in the company’s ordinary shares made by his spouse. Over three days, a total of 27,000 ordinary shares were sold at prices between NT$408.33 and NT$432.00 per share.
Following these transactions, 146,000 ordinary shares are reported as held indirectly by his spouse, while a separate holding entry shows 2,383,000 ordinary shares held directly. A footnote states that Chen disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.