AMKR: Amkor Technology Inc insider trading, 5% holders and institutional ownership
From public SEC filings: open-market insider purchases and sales (Form 4, last 180 days), holders of 5% or more (Schedules 13D and 13G) and institutional ownership (Form 13F). Insider and 5% data delayed 48 hours.
Insider trading
0 open-market buys totaling - and 2 sales totaling $322K in the last 180 days.
Insider sales
| Trade date | Insider | Role | Value | 10b5-1 plan |
|---|---|---|---|---|
| 2026-10-13 | Faust Megan | CFO | $47K | yes |
| 2026-10-02 | Alexander Douglas A | Director | $275K | yes |
Institutional ownership (Q2 2026)
650 institutions reported holding $9.40B of Amkor Technology Inc on Form 13F (535 the quarter before). 166 opened a new position and 50 sold out. Shares held by institutions: -4%.
| Largest holders | Shares | Value |
|---|---|---|
| BlackRock, Inc. | 12,292,760 | $1.06B |
| VANGUARD PORTFOLIO MANAGEMENT LLC | 9,712,553 | $837.51M |
| DIMENSIONAL FUND ADVISORS LP | 8,064,191 | $695.29M |
| VANGUARD CAPITAL MANAGEMENT LLC | 6,701,080 | $577.83M |
| JPMORGAN CHASE & CO | 5,702,608 | $470.03M |
| STATE STREET CORP | 3,730,584 | $321.69M |
| AQR CAPITAL MANAGEMENT LLC | 3,231,546 | $273.84M |
| EARNEST PARTNERS LLC | 2,852,492 | $245.97M |
| GEODE CAPITAL MANAGEMENT, LLC | 2,798,149 | $241.33M |
| Invesco Ltd. | 2,485,794 | $214.35M |
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