Amkor Technology Inc. filings document the regulatory record for a Nasdaq-listed outsourced semiconductor packaging and test company. The company’s 8-K reports furnish results of operations and financial condition, disclose material agreements and other events, and describe capital-structure matters involving common stock, senior notes and convertible senior notes.
AMKR filings also cover governance and ownership subjects through definitive proxy materials, officer appointments and underwriting agreements related to registered secondary offerings. Recent debt disclosures describe 0.00% convertible senior notes due 2031, subsidiary guarantees and their relationship to other senior unsecured indebtedness, while earnings-related filings include non-GAAP measures such as EBITDA alongside GAAP results.
Amkor Technology, Inc. executive Farshad Haghighi reported multiple equity transactions on 11/14/2025 related to restricted stock units (RSUs). Several RSU awards vested early due to his retirement eligibility, and the company withheld 66, 67, 269 and 395 shares of common stock to cover associated taxes at a price of $31.68 per share. These moves are administrative in nature and do not reflect open-market buying or selling. Following the reported transactions, he directly held 8,354 shares of Amkor common stock, along with remaining RSU awards that continue to represent potential future share delivery.
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.
Amkor Technology Executive Vice President Kevin Engel reported the vesting and exercise of 8,692 Restricted Stock Units into common stock on September 30, 2025, together with a tax-withholding disposition of 3,725 shares at $28.40 per share. After these events he directly holds 11,321 shares of common stock. The RSUs stem from a 43,459-unit grant awarded on February 20, 2025 that vests in five equal quarterly installments through June 30, 2026.