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. Chief Administration Officer Uang Du-Tsuen reported open-market sales of ordinary shares. Across three days, Uang sold a total of 11,000 shares at prices between 611 and 697 New Taiwan Dollars per share. After these transactions, Uang directly holds 767,000 ordinary shares, so the disposals represent a small portion of the reported position.
ASE Technology Holding Co., Ltd. reported strong May 2026 unaudited consolidated net revenues of NT$63,033 million, up 1.3% from April 2026 and 28.6% from May 2025. In U.S. dollars, net revenues were $2,001 million, rising 2.2% sequentially and 26.1% year over year.
The ATM assembly, testing and material business was the main growth driver, with May 2026 net revenues of NT$42,162 million, up 4.1% from April and 37.9% versus a year earlier. In U.S. dollars, ATM revenues reached $1,338 million, increasing 5.1% sequentially and 35.2% year over year.
ASE Technology Holding Co., Ltd. executive Uang Du‑Tsuen reported open‑market sales of Ordinary Shares. On June 1, 2026 and June 3, 2026, he sold 5,000 shares each day at prices of NT$607 and NT$617 per share, respectively. After these sales, he directly holds 778,000 Ordinary Shares.
ASE Technology Holding Co., Ltd. officer Chung Chih-Hsiao reported his equity holdings. He directly holds 30,000 Ordinary Shares and two stock option grants over a total of 865,000 Ordinary Shares. One option covers 365,000 shares at an exercise price of NT$41.10 expiring on August 22, 2028. The other covers 500,000 shares at NT$99.70 expiring on August 17, 2033. The 2018 grant is fully vested and exercisable, while the 2023 grant vests in seven semi-annual installments through August 18, 2028.
ASE Technology Holding Co., Ltd. director Jeffrey Chen reported a series of open-market sales of Ordinary Shares indirectly held through his spouse. Between May 22, 2026 and May 27, 2026, the spouse sold a total of 29,000 shares at prices ranging from NT$538 to NT$653 per share, reducing indirect holdings to zero after the final transaction. A separate entry on May 22, 2026 shows Chen directly holding 2,383,000 Ordinary Shares. A footnote states that Chen 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 of Ordinary Shares held by his spouse. Over three days, entities associated with him sold 27,000 shares at prices in New Taiwan Dollars, including 9,000 shares at NT$483, 9,000 at NT$477, and 9,000 at NT$505 per share. Following the last sale, his spouse’s indirect holdings stood at 29,000 Ordinary Shares, while a separate entry shows Chen with 2,383,000 Ordinary Shares held directly. Chen disclaims beneficial ownership of the reported securities except to the extent of any pecuniary interest.
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.