Companies / Amkor Technology Inc
Amkor Technology Inc
Financials · FY2025
Ownership
248.5M shares outstanding · as of Jul 21, 2026
Ownership
| Insiders | 2.98% | 7,413,179 |
| 10%+ / strategic | 11.91% | 29,594,980 |
| Institutions | 46.61% | 115,804,868 |
| Public float | 38.49% | 95,639,445 |
% of common shares outstanding (exact, from the latest cover-page filing). Institutions are quarterly 13F snapshots; insiders reflect current officers & directors.
Insiders 17
View all →| Insider | % of shares | Shares |
|---|---|---|
| 11.91% | 29,594,980 | |
Kim John T10% owner | 11.91% | 29,594,980 |
Kim Susan YDirector · 10% owner | 2.46% | 6,120,387 |
Rutten Guillaume Marie JeanCEOPresident and CEO · Director | 0.20% | 503,040 |
Morse Robert RandolphDirector | 0.05% | 134,977 |
Faust MeganCFO | 0.05% | 132,138 |
Watson David NDirector | 0.05% | 130,650 |
Tily Gil C.Director | 0.05% | 118,699 |
Carolin Roger AnthonyDirector | 0.04% | 94,409 |
McCourt MaryFrancesDirector | 0.03% | 65,811 |
Institutional holders 487
View all →| Holder | Value | % of shares |
|---|---|---|
| $1.06B | 4.95% | |
| $620.00M | 6.32% | |
| $504.29M | 5.14% | |
| $321.69M | 1.50% | |
| $154.54M | 1.38% | |
| $141.42M | 1.30% | |
| $141.22M | 1.44% | |
| $122.98M | 1.10% | |
| $120.97M | 1.23% | |
| $118.11M | 1.06% |
Activity
Jun 30, 2026View all →
InsidersInstitutions
Who's accumulating and trimming this stock (13F).| Date | Actor | Action | Security | Value | Shares Δ | Position after | Impact |
|---|---|---|---|---|---|---|---|
| Q1 2026 as of | Discovery Capital Management, LLC 13F manager | Exit | — | $-103.24M | -2.6M -100.00% | — | high |
| Q1 2026 as of | Bridgewater Associates, LP 13F manager | Add | — | $67.76M | +1.5M +1976.37% | 1,580,929 0.64% of shares | high |
| Q1 2026 as of | D. E. Shaw & Co., Inc. 13F manager | Add | — | $60.07M | +1.3M +861.82% | 1,488,765 0.60% of shares | high |
| Q2 2026 as of | BlackRock, Inc. 13F manager | Trim | — | $-54.34M | -630K -4.88% | 12,292,760 4.95% of shares | high |
| Q1 2026 as of | Norges Bank 13F manager | Exit | — | $-53.70M | -1.4M -100.00% | — | high |
| Q1 2026 as of | First Trust Advisors LP 13F manager | Trim | — | $-41.82M | -929K -34.12% | 1,793,537 0.72% of shares | medium |
| Q1 2026 as of | Arrowstreet Capital, Limited Partnership 13F manager | Trim | — | $-35.50M | -788K -99.26% | 5,878 <0.01% of shares | medium |
| Q1 2026 as of | Two Sigma Investments, LP 13F manager | Add | — | $29.77M | +661K +119.60% | 1,213,894 0.49% of shares | medium |
5%+ ownership events
Schedule 13D / 13G
| Filer | Stance | % of class |
|---|---|---|
| Vanguard Group Inc | Passive13G/A | — |
| Dimensional Fund Advisors LP | Passive13G/A | — |
Securities
via CUSIP / OpenFIGI
| Symbol | Type | CUSIP |
|---|---|---|
| AMKR | — | 031652100 |