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.
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.
Kevin K. Engel reported planned sales of company common stock under Rule 144. The filing lists dispositions of 5,316 shares on 02/17/2026 for $244,719.40 and 11,000 shares on 12/12/2025 for $508,292.40.
The notice also records recent issuer awards: 786 restricted shares on 02/16/2026, 9,914 restricted shares on 02/20/2026, and 1,800 performance shares on 02/18/2026.
Amkor Technology, Inc. President and CEO Kevin K. Engel reported multiple equity award transactions dated February 20, 2026. He acquired shares of common stock through the exercise and conversion of restricted stock units granted in 2024 and 2025 under Amkor’s 2021 Equity Incentive Plan. A portion of the resulting common shares, at a value of $47.94 per share, was withheld and disposed of to cover his tax withholding obligations related to the vesting. According to the disclosure, Amkor will pay these taxes on his behalf, so the dispositions reflect tax-withholding rather than open-market sales.
Amkor Technology CFO Megan Faust reported RSU vesting and related share transactions. On February 20, 2026, restricted stock units converted into common stock in multiple exercises, including 16,805 and 18,106 RSUs. The resulting common shares increased her direct ownership.
To cover tax withholding obligations tied to these vestings, the company withheld 7,201 and 7,759 shares of common stock at a price of $47.94 per share, described as tax-withholding dispositions rather than open-market sales. After these transactions, Faust continued to hold common stock directly.
Amkor Technology EVP & General Counsel Mark N. Rogers reported the vesting and conversion of restricted stock units into common stock, along with related tax-withholding transactions, on February 20, 2026. He acquired 7,422 and 8,690 shares of common stock upon RSU vesting, while 3,181 and 3,724 shares were withheld at $47.94 per share to cover tax obligations. The RSUs were granted on February 20, 2024 and February 20, 2025 and vest in three equal annual installments. Following these transactions, Rogers directly owned 37,830 shares of Amkor common stock.
Amkor Technology director Guillaume Rutten reported equity compensation activity involving restricted stock units and common shares. On February 20, 2026, he exercised time-vested RSUs granted under Amkor’s Equity Incentive Plan from February 20, 2024 and February 20, 2025, converting them into common stock at no cash cost. The RSUs were awarded solely in exchange for his service as a company service provider and vest over three years under predefined schedules, resulting in the acquisition of blocks of common shares that he now holds directly.
Amkor Technology Executive Vice President Farshad Haghighi reported RSU vesting and related share withholdings. On February 20, 2026, he acquired common stock through the exercise or conversion of restricted stock units granted under Amkor's 2021 Equity Incentive Plan, tied to awards from February 20, 2024 and February 20, 2025.
To cover tax withholding obligations from these vestings, Amkor withheld shares of common stock at a value of $47.94 per share rather than using cash. Following these transactions, Haghighi directly owned 22,979 shares of Amkor common stock.
AMKR filing a Form 144 notifying proposed sale of 20,000 common shares through Morgan Stanley Smith Barney LLC, with an associated amount shown as $976,070.00. The filing also lists three recent sales by Guillaume Rutten: 10,000 shares on 12/15/2025 ($448,039.00), 10,000 shares on 01/15/2026 ($531,394.00), and 10,000 shares on 02/17/2026 ($458,927.00).
Amkor Technology CFO Megan Faust reported multiple equity-related transactions on February 18, 2026. She acquired 4,538 shares of common stock and 9,325 shares of common stock upon vesting of performance stock units that were tied to a basic earnings per share goal for the period from January 1, 2025 through December 31, 2025.
To cover related tax obligations, 1,945 shares and 3,996 shares of common stock were withheld by Amkor at a price of $46.74 per share, as a tax-withholding disposition rather than an open-market sale. Faust also received a new grant of 26,743 restricted stock units, which were awarded for her service as an officer and will vest in three equal annual installments beginning on the first anniversary of the grant date.
Amkor Technology Executive Vice President Farshad Haghighi reported multiple equity compensation transactions. He received 18,185 time-vested restricted stock units on February 18, 2026, granted at no cash cost in recognition of his service. These RSUs vest in three equal annual installments beginning on the first anniversary of the grant date, with full vesting on the third anniversary.
On the same date, 2,003 and 5,594 common shares vested from performance stock units that were originally granted in 2024 and 2025. These awards vested after Amkor met a basic earnings-per-share performance goal over a one-year period from January 1, 2025 to December 31, 2025. To cover related tax obligations at a price of $46.74 per share, 1,038 and 2,621 shares of common stock were withheld and delivered back to the company, reducing out-of-pocket taxes for the executive while keeping these dispositions clearly tied to tax withholding rather than open-market sales.
Rutten Guillaume Marie Jean reported acquisition or exercise transactions in this Form 4 filing.
Amkor Technology director Guillaume Marie Jean Rutten reported the vesting of performance-based stock awards, increasing his direct common share holdings. On February 18, 2026, 10,891 shares of common stock vested from performance-vested restricted stock units granted on February 20, 2024, and 30,587 shares vested from units granted on February 20, 2025.
Both awards were granted under Amkor's Equity Incentive Plan and vested based on achieving a basic earnings per share performance goal over a one-year performance period from January 1, 2025 to December 31, 2025. Following these vestings, Rutten directly owns 380,789 shares of Amkor common stock.