Amkor Technology, INC Form 4 insider transactions

Amkor Technology Director MaryFrances McCourt acquired additional Restricted Stock Units through dividend equivalent units on September 23, 2025.

Amkor Technology Director John D. Liu accrued 27.3648 dividend equivalent units on September 23, 2025, tied to previously granted restricted stock units.

Amkor Technology Director Daniel Liao acquired 27.3648 dividend equivalent units (DEUs) in the form of restricted stock units (RSUs) on September 23, 2025, increasing his beneficial ownership.

Amkor Technology's President and CEO, Guillaume Marie Jean Rutten, sold 10,000 shares of common stock for $30 per share under a pre-arranged 10b5-1 trading plan.

Amkor Technology Executive Vice President Farshad Haghighi sold 11,792 shares of common stock for $25 per share.

James J. Kim, a Director and 10% owner of Amkor Technology, Inc., distributed 441,589 shares of common stock to Sujoda Investments, LP as part of a family group transaction.

An Amkor Technology 10% owner group member reported a future internal family distribution of over 441,000 shares of common stock.

A trust associated with a 10% owner of Amkor Technology, Inc. disclosed the distribution of over 560,000 shares of common stock to individuals.

David D. Kim, a member of Amkor Technology's 10% owner group, reported a planned indirect acquisition of 441,589 common shares.

SUJODA Investments, LP, a member of Amkor Technology's 10% owner group, acquired 441,589 shares of common stock through a family distribution.

Sujoda Management, LLC reported an acquisition of 441,589 shares of Amkor Technology common stock through a family group transaction.

A trust associated with a 10% owner of Amkor Technology, Inc. distributed 876,004 shares of common stock to two individuals.

Amkor Technology Director and 10% owner John T. Kim reported significant acquisitions of company common stock through direct distributions and an indirect purchase.

Susan Y. Kim, a Director and 10% owner of Amkor Technology, Inc., reported significant stock acquisitions and dispositions primarily through family trusts and partnerships.

Amkor Technology, Inc. Director and 10% owner James J. Kim reported the planned distribution of millions of common shares from grantor retained annuity trusts to himself and his spouse, along with existing indirect holdings through family trusts.

Amkor Technology Director and 10% owner Susan Y. Kim reported the distribution of over 4.4 million shares of common stock from two family Grantor Retained Annuity Trusts (GRATs) to family members.

A trust associated with Agnes C. Kim, a member of Amkor Technology's 10% owner group, distributed 1.738 million shares of common stock to Agnes C. Kim.

A trust associated with a significant shareholder of Amkor Technology, Inc. distributed over 2.7 million shares of common stock to James J. Kim.

Agnes C. Kim, a member of Amkor Technology's 10% owner group, reported the acquisition of 1,738,000 shares directly and 2,711,000 shares indirectly through her spouse from grantor retained annuity trusts, effective July 30, 2025.

Mark N. Rogers, Amkor Technology's EVP & General Counsel, sold 15,000 shares of common stock for approximately $353,727 on July 31, 2025.

Amkor Technology's President and CEO, Guillaume Marie Jean Rutten, acquired 8,691 shares of common stock through the exercise of restricted stock units, representing the first vesting installment of a larger grant.

Amkor Technology's Chief Financial Officer, Megan Faust, reported the vesting of restricted stock units and a subsequent disposition of shares to cover tax obligations.

Amkor Technology's Executive Vice President, Kevin Engel, reported the scheduled vesting of 8,691 restricted stock units and the subsequent disposition of 3,725 shares for tax withholding purposes on June 30, 2025.

Douglas A. Alexander, a Director at Amkor Technology, Inc., has accrued additional restricted stock units through dividend equivalent units following a dividend payment on June 25, 2025.

Amkor Technology Director Winston J. Churchill acquired additional restricted stock units through dividend equivalent units, increasing his beneficial ownership.

Amkor Technology, Inc. Director Roger Anthony Carolin has reported the accrual of additional restricted stock units (RSUs) through dividend equivalent units (DEUs) on June 25, 2025, increasing his beneficial ownership.

Amkor Technology Director John D. Liu has accrued 38.5269 additional restricted stock units through dividend equivalent units following a dividend payment on June 25, 2025.

Amkor Technology Director Daniel Liao acquired 38.5269 additional restricted stock units on June 25, 2025, through dividend equivalent units.

Amkor Technology, Inc. Director MaryFrances McCourt has increased her beneficial ownership of the company's common stock through the accrual of dividend equivalent units on her existing restricted stock units.

Susan Y. Kim, a Director and 10% Owner of Amkor Technology, Inc., filed a Form 4 detailing her direct and extensive indirect beneficial ownership of over 60 million common shares and the accrual of dividend equivalent units on her restricted stock units.