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 (AMKR) executive vice president Kevin Engel reported several small equity transactions on Form 4 related to restricted stock units (RSUs). On 11/14/2025, multiple RSU awards vested, each converting into common stock at an exercise price of $0. To cover taxes tied to his retirement eligibility status, the company withheld 30, 47, 223, and 369 shares of common stock at a price of $31.68 per share. After these transactions, Engel directly owned 11,321 shares of Amkor common stock, along with remaining RSU holdings shown across several grants. These are routine administrative transactions reflecting tax withholding on equity compensation rather than open-market buying or selling.
Amkor Technology (AMKR) insider activity: John T. Kim reported two transfers of common stock on November 4, 2025 tied to GRAT distributions. He received 806,000 shares and 40,750 shares at $0 as changes in the form of ownership from indirect (GRATs) to direct. Following these transactions, he directly owned 5,594,489 shares.
He also reports indirect interests through affiliated entities, including 39,594,980 shares by 915 Investments, LP, 19,484,809 by Sujochil, LP, and 16,710,668 by Kim Capital Partners – KCP, LLC, with beneficial ownership disclaimed except to the extent of his pecuniary interest.
Amkor Technology (AMKR) reported an insider ownership change on a Form 4. On 11/04/2025, the reporting person distributed 40,750 shares of Amkor common stock to John T. Kim, described as a mere change in the form of ownership from indirect to direct. Following the transaction, the filing shows 59,250 shares beneficially owned directly.
Amkor Technology (AMKR) reported an insider transaction on 11/04/2025. The reporting person distributed 806,000 shares of common stock to John T. Kim under transaction code G at a stated price of $0, which denotes a gift or similar transfer. The filing explains this was a mere change in the form of ownership from indirect to direct because Mr. Kim is the annuitant and sole trustee of the reporting person.
Following the transaction, the reporting person beneficially owned 1,194,000 shares directly. This entry reflects an ownership reclassification rather than an open‑market sale.
Amkor Technology (AMKR) reported that director John Liu resigned from its Board on October 28, 2025. The company stated the resignation was not due to any disagreements regarding operations, policies, or practices.
In connection with the change, the Board was reduced from eleven to ten directors. Mr. Liu will join Amkor as Executive Vice President, Corporate Development and Strategy on November 3, 2025.
Amkor Technology (AMKR) filed its Q3 2025 10‑Q, showing modest year-over-year growth and continued investment in capacity and liquidity. Net sales were $1,986,968 thousand versus $1,861,589 thousand a year ago, and operating income rose to $158,927 thousand from $149,367 thousand. Diluted EPS was $0.51.
Cash and cash equivalents increased to $1,495,656 thousand as of September 30, 2025, with short‑term investments at $614,703 thousand. Year‑to‑date operating cash flow was $451,126 thousand against capital expenditures of $472,531 thousand, reflecting ongoing capacity build‑out. Advanced products led sales at $1,683,505 thousand.
Amkor refinanced and extended its debt profile: it issued $500,000 thousand of 5.875% senior notes due October 2033 and added $500,000 thousand Term A Loans due May 2030, using proceeds to redeem the remaining 6.625% notes due 2027 and for general corporate purposes. The company declared a quarterly dividend of $0.08269 per share and reported 247,193,437 shares outstanding as of October 21, 2025.
Amkor Technology, Inc. announced a CEO transition. President and CEO Giel Rutten will retire on December 31, 2025, and remain on the Board. The Board unanimously appointed Kevin Engel to succeed him as President, CEO and director, effective immediately after Mr. Rutten’s retirement. Mr. Rutten will provide strategic and advisory services through March 31, 2026.
Mr. Engel’s employment terms include a starting annual base salary of $900,000 and a target annual incentive of 125% of base salary. In February 2026, he will receive long‑term equity awards with a total target value of $5.0 million, plus $1.0 million in restricted stock units vesting in December 2026 and December 2027. His severance agreement provides enhanced benefits upon certain terminations, including change-in-control protections. The company also furnished a press release announcing financial performance for the three and nine months ended September 30, 2025.
Amkor Technology (AMKR) reported an insider transaction by President, CEO, and Director Guillaume Marie Jean Rutten. On 10/15/2025, he sold 10,000 shares of common stock at $30.74 per share under a pre‑arranged Rule 10b5-1 trading plan adopted on June 06, 2025.
After this sale, Rutten beneficially owns 356,699 shares, held directly. This Form 4 indicates a routine, disclosed transaction executed pursuant to a trading plan designed to provide structured selling parameters.
Kevin Engel, Executive Vice President and director at Amkor Technology, Inc. (AMKR), reported transactions tied to the vesting of restricted stock units. On 09/30/2025 a grant-related event recorded 8,692 RSUs vested and withheld to satisfy tax obligations, and 3,725 shares were disposed at a price of $28.40 each. After these transactions the filing shows beneficial ownership related totals of 26,076 shares of common stock (derivative-related) and direct holdings reported as 15,046 and 11,321 on separate lines in Table I.
The filing explains the RSUs were originally granted on 02/20/2025 for 43,459 RSUs vesting in five equal quarterly installments through 06/30/2026, and that withheld shares were used to satisfy tax withholding with the Issuer paying the taxes on behalf of the reporting person.
Susan Y. Kim, a director and reported 10% owner of Amkor Technology, Inc. (AMKR), filed a Form 4 disclosing a disposition of 4,456,494 shares on 09/23/2025. The filing details numerous indirect holdings through entities and trusts for which she serves as trustee, general partner or manager, including 19,484,809 shares held by Sujochil, LP, 16,710,668 shares held by an LLC treated as a corporation, 4,418,610 shares held by family trusts (excluding GRATs), 3,800,000 shares held by GRATs, 3,483,000 shares held by GRATs of which she was settlor, and 3,789,479 shares indirectly owned via Sujoda Investments, LP. The filer disclaims beneficial ownership except for her pecuniary interest. The filing also reports dividend equivalent units accrued on 09/23/2025 related to time-vested RSUs granted 05/15/2025.
FAQ
What is the current stock price of Amkor Tech (AMKR)?
What is the market cap of Amkor Tech (AMKR)?
