Welcome to our dedicated page for Chipmos Technolo SEC filings (Ticker: IMOS), 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.
The ChipMOS TECHNOLOGIES INC (IMOS) SEC filings page on Stock Titan brings together the company’s U.S. regulatory disclosures as a foreign private issuer listed on Nasdaq. ChipMOS files reports on Form 20-F and frequent Form 6-K current reports under the Securities Exchange Act of 1934, many of which are English translations of materials filed with the Taiwan Stock Exchange’s Market Observation Post System (MOPS).
Through these filings, investors can review financial statements and earnings information, including quarterly consolidated results prepared in accordance with Taiwan-International Financial Reporting Standards (Taiwan-IFRS). Form 6-K submissions detail operating revenue, gross profit, operating profit, profit or loss attributable to equity holders, basic earnings or losses per share, and balance sheet data such as total assets, total liabilities and equity attributable to equity holders.
ChipMOS also uses 6-K filings to disclose board resolutions and capital actions, such as approval of quarterly financial statements, share repurchase authorizations, execution status of repurchase programs and capital reductions tied to cancellation of treasury shares. These documents provide context on the company’s capital structure and treasury share management.
Other filings address regulatory and environmental matters, including administrative fines related to the Water Pollution Control Act and the company’s remediation steps, as well as clarifications of media reports and notices of board meeting dates for financial statement approval. On Stock Titan, AI-powered tools can help summarize lengthy 6-K exhibits, highlight key financial figures and board decisions, and make it easier to understand how each filing relates to ChipMOS’s semiconductor assembly and test operations.
Investors can use this page to track ChipMOS’s periodic financial reporting, corporate actions and regulatory disclosures in one place, while AI-generated insights assist in interpreting the implications of each filing for IMOS stock.
ChipMOS TECHNOLOGIES INC. reported the acquisition of machinery equipment and related accessories for manufacturing use. The total transaction price is NT$688,901 thousand, reflecting a significant capital investment in production capacity.
The equipment was purchased from ADVANTEST TAIWAN INC., which has no related-party relationship with the company. The transaction, covering events from 2025/04/30 to 2026/04/02, was approved on 2026/04/02 by the company’s President in line with internal authorization procedures.
CHIPMOS TECHNOLOGIES INC president and director Cheng Shih Jye filed an initial ownership report showing substantial holdings of the company’s common stock. This Form 3 does not record new trades but establishes his existing stake as an insider.
He reports 5,160,161 shares held directly. He also reports 6,244,777 shares held indirectly through Hao Hsiang Investment Co., Ltd., where he serves as representative and director, and 1,000,000 shares held indirectly through his spouse.
CHIPMOS TECHNOLOGIES INC reported that Lin Fu-Chen is a director of the company in a Form 3 insider ownership filing. The submission lists no reported transactions, exercises, gifts, or tax withholdings, and shows no derivative positions in the derivative summary.
CHIPMOS TECHNOLOGIES INC executive vice president Hsu Yuan-Feng filed an initial ownership report showing their equity stake in the company. The Form 3 indicates direct ownership of 230,130 shares of Common Stock. This filing establishes the baseline holdings that future insider transaction reports will reference.
CHIPMOS TECHNOLOGIES INC Executive Vice President Teng-Yueh Tsai filed an initial ownership report on the company’s common stock. The filing shows direct ownership of 272,572 common shares and indirect ownership of 820,000 common shares held through Yung Hsiang Investment Co., Ltd., where Tsai serves as representative and director.
CHIPMOS TECHNOLOGIES INC director Tang Yuh-Fong filed an initial insider ownership report on Form 3. This filing establishes their status as a director and provides the baseline disclosure of any equity holdings associated with this role, without reporting any new stock purchases, sales, or option exercises.
CHIPMOS TECHNOLOGIES INC director Wang Jyh-Chau filed an initial ownership report on Form 3. This filing establishes his status as a director and provides a baseline disclosure of his beneficial ownership in the company at the time he became subject to reporting rules. The data shown does not include any buy, sell, or other share transactions.
CHIPMOS TECHNOLOGIES INC director Wang Yeong-Her filed an initial ownership report on Form 3. This filing identifies Wang as a director of the company and establishes a baseline disclosure of his equity position under insider reporting rules. The filing does not list any buy, sell, or other reportable transactions.
CHIPMOS TECHNOLOGIES INC vice president and director Yu-Chiao Su filed an initial ownership report on the company’s common stock. The filing shows direct ownership of 346,101 shares and indirect ownership of 830,000 shares held through Tsai Fu Investment Co., Ltd., where Su serves as representative and director.
CHIPMOS TECHNOLOGIES INC director files initial ownership report. Chang Pao-Hsin submitted a Form 3 as a director of ChipMOS Technologies Inc. This filing establishes his status as an insider under U.S. securities rules. The report does not list any transactions or specific share holdings in this excerpt.