Amkor Technology, INC Form 4 insider transactions

A Form 4 filing reveals John T. Kim's GRAT distributed 806,000 Amkor Technology common shares, changing ownership from indirect to direct.

Amkor Technology's President and CEO, Guillaume Marie Jean Rutten, sold 10,000 shares of common stock for $30.74 per share on October 15, 2025, under a pre-arranged 10b5-1 trading plan.

Amkor Technology Executive Vice President Kevin Engel reported the vesting of restricted stock units and subsequent share withholding for tax obligations.

Amkor Technology CFO Megan Faust reported the vesting of 8,692 restricted stock units and the subsequent disposition of 3,725 shares for tax obligations.

Amkor Technology's President and CEO, Guillaume Marie Jean Rutten, acquired 8,692 shares of common stock through the scheduled vesting of restricted stock units.

Amkor Technology Director Susan Y. Kim reported the accrual of dividend equivalent units on restricted stock units and detailed her extensive beneficial ownership of common stock.

Amkor Technology Director Douglas A. Alexander increased his beneficial ownership of Restricted Stock Units through routine dividend equivalent unit accruals.

Amkor Technology Director Roger Anthony Carolin increased his beneficial ownership of restricted stock units through dividend equivalent unit accruals.

Amkor Technology Director Winston J. Churchill acquired additional restricted stock units through dividend equivalent units on September 23, 2025.

Amkor Technology Director Gil C. Tily accrued 27.3648 dividend equivalent units related to previously granted restricted stock units.

Amkor Technology Director David N. Watson acquired 27.3648 Restricted Stock Units through dividend equivalent units on September 23, 2025, increasing his beneficial ownership to 9,854.8917 units.

Amkor Technology director Robert Randolph Morse acquired additional restricted stock units through dividend equivalent units.

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.