Susan Y. Kim
Susan Y. Kim: Director · 10% owner · Member of 10% owner group (5) at Amkor. What Susan Y. Kim 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)
Susan Y. Kim holds 42.1M Amkor shares (17.0% of the company), worth about $2.3B at the last price, according to the Form 4 of Sep 22, 2026.
- Shares held: 24.4M (9.8%), $1.4B — Held through companies or funds (By own GRATs, By Sujoda Investments, LP, By Sujochil, LP).
- Shares held: 11.6M (4.7%), $645.8M — Held through trusts (2025 Grantor Retained Annuity Trust No. 1 of James J. Kim, 2025 Grantor Retained Annuity Trust No. 1 of Agnes C. Kim, By James J. Kim 2024 GRAT dtd. 8/5/24, By Agnes C. Kim 2024 GRAT dtd. 8/5/24).
- Shares held: 6.1M (2.5%), $340.0M — Held in their own name.
- Share units: 2,620 (0.00%), $145,541.00 — 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 (Member of 10% owner group (5)); 42.1M shares after 0001628280-26-063436
- Amkor (AMKR) — Form 4 of Jun 23, 2026 (Member of 10% owner group (5)); 42.1M shares after 0001628280-26-045577
- Amkor (AMKR) — Form 4 of Jun 12, 2026 (Member of 10% owner group (5)): grant or award of 9,893; 42.1M shares after 0001628280-26-042891
- Amkor (AMKR) — Form 4 of May 13, 2026 (Member of 10% owner group (6)); 42.1M shares after 0001628280-26-035684
- Amkor (AMKR) — Form 4 of Apr 7, 2026 (Member of 10% owner group (5)): option exercise or conversion of 20,000 at $5.66; 42.1M shares after 0001628280-26-024522
- Amkor (AMKR) — Form 4 of Mar 31, 2026 (Member of 10% owner group (6)); 42.1M shares after 0001628280-26-023393
- Amkor (AMKR) — Form 4 of Dec 26, 2025 (Member of 10% owner group (6)): gift of 725,000; 58.8M shares after 0001158922-25-000021
- Amkor (AMKR) — Form 4 of Dec 23, 2025 (Member of 10% owner group (8)): gift of 3.2M; gift of 2.5M; 59.6M shares after 0001158922-25-000019
- Amkor (AMKR) — Form 4 of Dec 4, 2025 (Member of 10% owner group (6)): gift of 758,000; gift of 758,000; 55.4M shares after 0001158922-25-000017
- Amkor (AMKR) — Form 4 of Nov 20, 2025 (Member of 10% owner group (10)): gift of 876,000; gift of 876,000; 57.2M shares after 0001158922-25-000015
- Amkor (AMKR) — Form 4 of Sep 23, 2025 (Member of 10% owner group (10)); 56.1M shares after 0001628280-25-042831
- Amkor (AMKR) — Form 4 of Aug 1, 2025 (Member of 10% owner group (10)): gift of 438,002; gift of 280,000; 56.4M shares after 0001158922-25-000013
- Amkor (AMKR) — Form 4 of Jul 30, 2025 (Member of 10% owner group (6)): gift of 2.7M; gift of 1.7M; 56.4M shares after 0001158922-25-000011
- Amkor (AMKR) — Form 4 of Jun 25, 2025 (Member of 10% owner group (6)); 60.9M shares after 0001047127-25-000137
- Amkor (AMKR) — Form 4 of May 15, 2025 (Member of 10% owner group (7)): option exercise or conversion of 6,017; 60.9M shares after 0001047127-25-000104
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.