Guillaume Marie Jean Rutten

Companies

• Amkor TechnologyBoard member Oct 16, 2020 to now¹
• Amkor TechnologyChief executive officer Jul 30, 2020 to Feb 18, 2026²
• Amkor TechnologyPresident Jul 30, 2020 to Feb 18, 2026²
• Amkor TechnologyExecutive Vice President Jan 13, 2014 to Jun 8, 2020³

Holdings

Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.

Shares held

• Amkor Technology AMKR461,732 shares⁴$19.4M at $41.95Aug 6, 2026

As of each latest filing. The line shows shares held over time.

Recent filings

• Aug 6, 2026Sold 25,000 shares at $54.50 of Amkor Technology⁴
• Aug 5, 2026Sold 25,000 shares at $55.35 of Amkor Technology⁴
• Jun 30, 2026Exercised options 8,692 shares of Amkor Technology⁵
• May 13, 2026Exercised options 482 shares of Amkor Technology⁶
• May 8, 2026Sold 50,000 shares at $74.28 of Amkor Technology⁷
• Mar 31, 2026Exercised options 8,692 shares of Amkor Technology⁸
• Feb 24, 2026Sold 20,000 shares at $48.80 of Amkor Technology⁹
• Feb 24, 2026Exercised options 10,748 shares of Amkor Technology⁹
• Feb 20, 2026Exercised options 59,388 shares of Amkor Technology¹⁰
• Feb 20, 2026Exercised options 112,941 shares of Amkor Technology¹⁰
• Feb 18, 2026Granted 30,587 shares of Amkor Technology¹¹
• Feb 18, 2026Granted 10,891 shares of Amkor Technology¹¹
• Feb 17, 2026Sold 10,000 shares at $45.89 of Amkor Technology¹²
• Feb 16, 2026Exercised options 13,920 shares of Amkor Technology¹²
• Jan 15, 2026Sold 10,000 shares at $53.14 of Amkor Technology¹³
• Dec 31, 2025Exercised options 8,692 shares of Amkor Technology¹⁴
• Dec 15, 2025Sold 10,000 shares at $44.80 of Amkor Technology¹⁵
• Nov 17, 2025Sold 10,000 shares at $31.68 of Amkor Technology¹⁶
• Oct 15, 2025Sold 10,000 shares at $30.74 of Amkor Technology¹⁷
• Sep 30, 2025Exercised options 8,692 shares of Amkor Technology¹⁸
• Sep 23, 2025Sold 10,000 shares at $30.00 of Amkor Technology¹⁹
• Jun 30, 2025Exercised options 8,691 shares of Amkor Technology²⁰
• Feb 24, 2025Exercised options 10,748 shares of Amkor Technology²¹
• Feb 20, 2025Exercised options 112,941 shares of Amkor Technology²²
• Feb 19, 2025Granted 16,736 shares of Amkor Technology²²