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.
KIM SUSAN Y reported acquisition or exercise transactions in this Form 4 filing.
AMKOR TECHNOLOGY, INC. director and 10% owner group member Susan Y. Kim reported updated holdings and a small equity award. The filing shows she received 2.5166 dividend equivalent units as additional restricted stock units, bringing her total RSUs to 2615.5166, all tied to Amkor common stock.
The report also details large indirect holdings through family trusts, grantor retained annuity trusts, and partnerships such as Sujochil, LP and Sujoda Investments, LP. She is treated as having a pecuniary interest in these Amkor shares but disclaims beneficial ownership beyond that pecuniary interest.
AMKOR TECHNOLOGY, INC. director David N. Watson reported an acquisition of additional equity-based compensation tied to existing awards. On June 23, 2026, he received 2.5166 dividend equivalent units, which are additional restricted stock units linked to a dividend paid on that date.
These dividend equivalent units correspond to previously granted time-vested restricted stock units awarded on May 13, 2026 and convert into the same number of common shares when vested. After this grant, Watson holds a total of 2,615.5166 restricted stock units directly.
AMKOR TECHNOLOGY, INC. director Gil C. Tily reported an automatic equity compensation adjustment. He acquired 2.5166 dividend equivalent restricted stock units (RSUs) on June 23, 2026, tied to a cash dividend and existing time-vested RSUs granted on May 13, 2026, bringing his RSU holdings to 2,615.5166 units.
Rutten Guillaume Marie Jean reported acquisition or exercise transactions in this Form 4 filing.
AMKOR TECHNOLOGY, INC. director Guillaume Marie Jean Rutten reported a small equity-based compensation adjustment. He received a grant of 2.5166 restricted stock units as dividend equivalent units that accrued when a dividend was paid on June 23, 2026 on his existing time-vested RSUs granted on May 13, 2026. After this accrual, his reported holdings in these restricted stock units increased to 2615.5166 units, reflecting routine compensation mechanics rather than an open-market transaction.
Morse Robert Randolph reported acquisition or exercise transactions in this Form 4 filing.
AMKOR TECHNOLOGY, INC. director Robert Randolph Morse reported awards of additional restricted stock units on June 23, 2026. These awards are dividend equivalent units that accrued when the company paid a dividend on existing time-vested RSU grants from 2023, 2025, and 2026. Each dividend equivalent unit is treated as an extra RSU under the same vesting and other terms as the original grants, so this filing reflects routine equity-based compensation rather than any open-market buying or selling of AMKR shares.
AMKOR TECHNOLOGY, INC. director MaryFrances McCourt reported additional stock-based compensation in the form of dividend equivalent units on her restricted stock units. On June 23, 2026 she was credited 2.5166 RSUs tied to a May 16, 2023 grant and 8.1651 RSUs tied to a May 13, 2026 grant, each on a one-for-one basis with Amkor common stock. These credits increased her respective RSU balances to 2,615.5166 units and 8,903.9532 units. The transactions are awards, not open‑market purchases or sales, and involved no cash exercise price.
Amkor Technology director Daniel JL Liao received additional restricted stock units as part of his equity compensation. On June 23, 2026, he acquired 2.5166 restricted stock units and 9.4278 restricted stock units, each representing dividend equivalent units credited when Amkor paid a dividend.
These dividend equivalent units convert into additional restricted stock units tied to earlier RSU grants from May 15, 2025 and May 13, 2026, and are subject to the same vesting and other terms as those original awards. The transactions are compensation-related grants rather than open‑market stock purchases or sales.
CHURCHILL WINSTON J reported acquisition or exercise transactions in this Form 4 filing.
AMKOR TECHNOLOGY, INC. director Winston J. Churchill reported a small compensation-related equity change. He received 2.5166 dividend equivalent units in the form of restricted stock units, linked to a dividend paid on June 23, 2026 and tied to existing time-vested RSUs granted on May 13, 2026. Following this award, his directly held restricted stock unit balance increased to 2,615.5166 units, each representing one share of common stock when vested.
Amkor Technology director Roger Anthony Carolin reported three compensation-related acquisitions of restricted stock units. On June 23, 2026, he received small blocks of RSUs—2.5166, 9.4278, and 8.1651 units—credited as dividend equivalent units tied to prior time‑vested RSU grants from May 16, 2023, May 15, 2025, and May 13, 2026. Each dividend equivalent unit converts into an additional RSU with the same vesting terms as the original awards, and there were no open‑market share purchases or sales in this filing.
AMKOR TECHNOLOGY, INC. director Douglas A. Alexander reported compensation-related equity changes rather than open-market trading. On June 23, 2026 he acquired small numbers of Restricted Stock Units as dividend equivalent units tied to previously granted time-vested RSUs. These include 2.5166 RSUs linked to a May 17, 2022 grant and 9.4278 RSUs linked to a May 16, 2023 grant, with each dividend equivalent unit converting into an additional RSU under the same terms as the original awards.