Welcome to our dedicated page for Amkor Tech SEC filings (Ticker: AMKR), 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 Amkor Technology, Inc. (Nasdaq: AMKR) SEC filings page on Stock Titan provides direct access to the company’s regulatory disclosures as filed with the U.S. Securities and Exchange Commission. Amkor is a U.S.-headquartered outsourced semiconductor assembly and test (OSAT) provider and a global leader in semiconductor packaging and test services. Its filings offer detailed insight into financial performance, capital structure, governance, and major corporate actions.
Investors can review annual reports on Form 10-K and quarterly reports on Form 10-Q (when available) to understand Amkor’s net sales by advanced and mainstream product categories, packaging and test services mix, end-market distribution across communications, computing, automotive, industrial and consumer segments, and key metrics such as gross margin and operating income. These reports also describe risk factors, business operations, and the company’s position in the semiconductor packaging and test industry.
Current reports on Form 8-K document material events, including earnings releases, CEO succession plans, executive appointments, board changes, amendments to credit facilities, and new debt offerings. For example, Amkor has filed 8-Ks describing its 5.875% Senior Notes due 2033, the related indenture terms, and the planned redemption of its 6.625% Senior Notes due 2027, as well as the creation of Term A-1 Loans under its credit agreement.
This page also surfaces information on debt covenants and events of default from indenture-related filings, giving readers visibility into limitations on additional indebtedness, liens, sale-leaseback transactions, and certain corporate restructurings. Where applicable, insider transaction reports on Form 4 and proxy statements on Schedule 14A can be used to analyze executive compensation, ownership, and governance practices.
Stock Titan enhances these filings with AI-powered summaries that highlight key points from lengthy documents, helping readers quickly interpret complex 10-K, 10-Q, and 8-K disclosures. Real-time updates from EDGAR ensure that new filings, including material debt, equity, or governance changes, appear promptly, while AI-generated overviews help users focus on the sections most relevant to Amkor’s semiconductor packaging and test business.
AMKOR TECHNOLOGY, INC. director Guillaume Marie Jean Rutten reported equity compensation activity, including a new grant of 482 restricted stock units and the vesting of 8,692 restricted stock units into common shares. These transactions are awards and exercises, not open-market buying or selling.
Following the conversion of 8,692 restricted stock units into common stock, Rutten directly holds 552,558 shares of Amkor common stock. The restricted stock units were granted under Amkor’s 2021 Equity Incentive Plan as compensation for board service and will vest based on specified dates and service conditions.
AMKOR TECHNOLOGY, INC. director Robert Randolph Morse reported routine equity compensation adjustments tied to dividends. On March 31, 2026, he acquired 15.7246 dividend equivalent units and 18.1563 dividend equivalent units, each representing additional restricted stock units linked to prior time-vested RSU grants.
These dividend equivalent units convert into the same number of common shares when the underlying RSUs vest, under the same terms as the original awards. After these grants, Morse directly holds 9,893.0573 restricted stock units in total, reflecting ongoing stock-based compensation rather than any market purchase or sale.
Amkor Technology director MaryFrances McCourt received additional restricted stock units through dividend equivalents. On March 31, 2026, she was granted 15.7246 RSUs and 18.1563 RSUs as dividend equivalent units tied to prior RSU awards from May 16, 2023 and May 15, 2025.
Each dividend equivalent unit converts into one additional RSU under the same terms as the original grants. Following these accruals, she directly holds 9,893.0573 restricted stock units linked to Amkor common stock.
AMKOR TECHNOLOGY, INC. director and 10% owner group member Susan Y. Kim reported an acquisition of restricted stock units tied to a dividend. She received 18.1563 dividend equivalent restricted stock units on March 31, 2026, increasing her restricted stock unit holdings to 9,893.0573 units of common stock.
The filing also lists substantial common stock holdings reported as direct and indirect interests through various family trusts, grantor retained annuity trusts, and limited partnerships, with beneficial ownership treated based on her pecuniary interest in those entities.
AMKOR TECHNOLOGY, INC. director Daniel JL Liao reported an automatic acquisition of 18.1563 restricted stock units on dividend equivalent terms. These dividend equivalent units were accrued on March 31, 2026 in connection with previously granted time-vested RSUs from May 15, 2025.
Each dividend equivalent unit represents an additional RSU that is subject to the same vesting and other provisions as the original RSU grant. Following this accrual, Liao’s direct holdings in RSUs tied to common stock total 9,893.0573 units, reflecting a small, compensation-related adjustment rather than an open-market trade.
Amkor Technology CFO Megan Faust exercised restricted stock units into common stock as part of her equity compensation. On March 31, 2026, 8,692 RSUs converted into 8,692 shares of common stock at a stated price of $0.00 per share. Of these, 3,725 shares, valued at $45.03 per share, were withheld by Amkor to cover her tax obligations, with the company paying the taxes on her behalf. After these transactions, she directly owned 134,138 shares of Amkor common stock. The vested RSUs relate to a 43,459-unit grant awarded on February 20, 2025, scheduled to vest in five equal quarterly installments from June 30, 2025 through June 30, 2026.
Amkor Technology, Inc. President and CEO Kevin K. Engel exercised restricted stock units and had shares withheld for taxes. On March 31, 2026, 8,692 restricted stock units converted into 8,692 shares of common stock. Of these, 3,725 shares were withheld by Amkor at $45.03 per share to cover Engel's tax obligations, with taxes paid by the company. After these compensation-related transactions, Engel directly held 7,920 shares of Amkor common stock. The RSUs were part of a 43,459-unit grant made on February 20, 2025 under Amkor's 2021 Equity Incentive Plan, vesting in five equal quarterly installments through June 30, 2026.
Amkor Technology director Winston J. Churchill received additional stock-based compensation through dividend equivalents. On the payment of a dividend on March 31, 2026, he was credited with 18.1563 restricted stock units (RSUs) as dividend equivalent units tied to an existing time-vested RSU award granted on May 15, 2025. Each dividend equivalent unit converts into one additional RSU under the same vesting terms as the original grant. Following this accrual, Churchill holds a total of 9,893.0573 RSUs directly, reflecting routine, non-cash compensation rather than an open-market share purchase.
Amkor Technology director Roger Anthony Carolin reported routine equity compensation adjustments tied to dividends. On March 31, 2026, he acquired 15.7246 restricted stock units as dividend equivalent units on time-vested RSUs granted on May 16, 2023, and 18.1563 units on RSUs granted on May 15, 2025. After these grants, his directly held RSU-based interest increased to 9,893.0573 units, all representing future rights to Amkor common stock, subject to the same vesting terms as the original RSU awards.
Amkor Technology director Douglas A. Alexander received additional restricted stock units through dividend credits rather than market purchases. On March 31, 2026, he was granted three small blocks of dividend equivalent units tied to earlier RSU awards from 2022, 2023, and 2025. Each dividend equivalent unit converts into an additional RSU subject to the same vesting and other conditions as the original grants, modestly increasing his equity-based compensation while leaving cash holdings unchanged.