Guillaume Marie Jean Rutten
Guillaume Marie Jean Rutten: Director at Amkor. What Guillaume Marie Jean Rutten holds in an AI or semiconductor company tracked on Silicon Floor, from their SEC filings, broken down: the shares held and how, then any restricted shares, options or other rights declared.
Amkor (AMKR)
Guillaume Marie Jean Rutten holds 461,732 Amkor shares (0.19% of the company), worth about $25.6M at the last price, according to the Form 4 of Aug 6, 2026.
- Shares held: 461,732 (0.19%), $25.6M — Held in their own name.
- Share units: 2,620 (0.00%), $145,252.80 — Amkor promised them as pay: each unit becomes a share when it vests, if its conditions are met. No vote until then.
Declarations
- Amkor (AMKR) — Form 4 of Sep 22, 2026 0001628280-26-063429
- Amkor (AMKR) — Form 4 of Aug 6, 2026: open-market sale of 25,000 at $55.35; open-market sale of 25,000 at $54.50; 461,732 shares after 0001628280-26-054882
- Amkor (AMKR) — Form 4 of Jun 30, 2026: option exercise or conversion of 8,692; 511,732 shares after 0001628280-26-046953
- Amkor (AMKR) — Form 4 of Jun 23, 2026 0001628280-26-045570
- Amkor (AMKR) — Form 4 of May 13, 2026: option exercise or conversion of 482; 503,040 shares after 0001628280-26-035658
- Amkor (AMKR) — Form 4 of May 8, 2026: open-market sale of 50,000 at $74.28; 502,558 shares after 0001628280-26-034167
- Amkor (AMKR) — Form 4 of Apr 1, 2026: option exercise or conversion of 8,692; 552,558 shares after 0001628280-26-023399
- Amkor (AMKR) — Form 4 of Feb 24, 2026: option exercise or conversion of 10,748; open-market sale of 20,000 at $48.80; 543,866 shares after 0001628280-26-012300
- Amkor (AMKR) — Form 4 of Feb 20, 2026: option exercise or conversion of 112,941; option exercise or conversion of 59,388; 553,118 shares after 0001628280-26-011069
- Amkor (AMKR) — Form 4 of Feb 18, 2026: grant or award of 10,891; grant or award of 30,587; 380,789 shares after 0001628280-26-010222
- Amkor (AMKR) — Form 4 of Feb 17, 2026: option exercise or conversion of 13,920; open-market sale of 10,000 at $45.89; 339,311 shares after 0001628280-26-009053
- Amkor (AMKR) — Form 4 of Jan 15, 2026: open-market sale of 10,000 at $53.14; 335,391 shares after 0001628280-26-002639
- Amkor (AMKR) — Form 4 of Dec 31, 2025 (President and CEO): option exercise or conversion of 8,692; 345,391 shares after 0001628280-26-000440
- Amkor (AMKR) — Form 4 of Dec 15, 2025 (President and CEO): open-market sale of 10,000 at $44.80; 336,699 shares after 0001628280-25-057633
- Amkor (AMKR) — Form 4 of Nov 17, 2025 (President and CEO): open-market sale of 10,000 at $31.68; 346,699 shares after 0001628280-25-053216
Sources: SEC Schedules 13D and 13G (stakes above 5%, which count everything a person votes or can acquire within 60 days) and Forms 3, 4 and 5 (the shares a director, officer or 10% owner holds, filed within two business days of each trade). Values at the last price.