Amkor TechnologyAMKR
13F holders, Q3 2025 (September 30)383holders +35
75new positions
39sold out
8famous investors
$28.60avg. 13F price*
At the end of Q3 2025, 383 institutions reported holding Amkor Technology Inc. (AMKR) in their 13F filings, up 35 from Q2 2025. 75 opened new positions and 39 sold out. The largest holders were Vanguard Group Inc. ($448.1M), BlackRock, Inc. ($392.9M) and Dimensional Fund Advisors LP ($373.5M). 8 famous investors held it, including Joel Greenblatt (0.2% of Gotham Asset Management's portfolio), Cliff Asness (0.1% of AQR Capital Management's portfolio) and Israel Englander (0.0% of Millennium Management's portfolio).
- Company
- Amkor Technology Inc.
- CUSIP
- 031652100
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 75 | $83.1M |
| Exits | 39 | $52.5M |
All 13F filers, Q2 2025 → Q3 2025: 10,158,501 shares bought and 14,579,721 shares sold, net −4,421,220 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 383 holders
| Vanguard Group Inc. | 0.01% | Add +4.6% | 15,779,847 | $448.1M |
| BlackRock, Inc. | 0.01% | Reduce -7.2% | 13,834,810 | $392.9M |
| Dimensional Fund Advisors LP | 0.08% | Reduce -0.9% | 13,151,210 | $373.5M |
| AQR Capital Management | 0.08% | Add +18.4% | 4,211,529 | $119.6M |
| Earnest Partners LLC | 0.52% | Reduce -4.9% | 4,206,353 | $119.5M |
| LSV Asset Management | 0.25% | Reduce -17.6% | 3,981,356 | $113.1M |
| American Century Companies Inc. | 0.06% | Add +0.5% | 3,835,987 | $108.9M |
| State Street Corp. | 0.00% | Add +3.2% | 3,426,411 | $97.3M |
| SW Investment Management LLC | 16.12% | No change | 2,650,000 | $75.3M |
| Geode Capital Management, LLC | 0.00% | Add +1.1% | 2,279,431 | $64.7M |
| Principal Financial Group Inc. | 0.03% | Reduce -2.6% | 2,268,840 | $64.4M |
| Charles Schwab Investment Management Inc. | 0.01% | Add +1.9% | 2,195,166 | $62.3M |
| First Trust Advisors LP | 0.04% | Add +17.6% | 1,981,609 | $56.3M |
| Arrowstreet Capital, Limited Partnership | 0.03% | Add +305.5% | 1,574,607 | $44.7M |
| Morgan Stanley | 0.00% | Add +12.3% | 1,466,387 | $41.6M |
| Gotham Asset Management | 0.17% | Add +6.8% | 1,413,719 | $40.1M |
| Bank of New York Mellon Corp | 0.01% | Reduce -20.6% | 1,343,819 | $38.2M |
| FMR LLC | 0.00% | Reduce -0.1% | 1,285,635 | $36.5M |
| Invesco Ltd. | 0.01% | Add +133.7% | 1,229,931 | $34.9M |
| Northern Trust Corp. | 0.00% | Reduce -1.1% | 914,872 | $26.0M |
| Focus Partners Wealth | 0.04% | New | 121,253 | $23.9M |
| Bandera Partners LLC | 9.63% | No change | 773,493 | $22.0M |
| Envestnet Asset Management Inc. | 0.01% | Reduce -1.3% | 769,803 | $21.9M |
| Millennium Management | 0.02% | Reduce -44.2% | 740,406 | $21.0M |
| Nuveen, LLC | 0.01% | Add +248.9% | 735,667 | $20.9M |
| Fisher Asset Management | 0.01% | Add +10.5% | 687,918 | $19.5M |
| Royce & Associates LP | 0.19% | Reduce -1.6% | 661,741 | $18.8M |
| Wellington Management Group LLP | 0.00% | Add +132.4% | 659,806 | $18.7M |
| Ameriprise Financial Inc. | 0.00% | Add +197.0% | 616,511 | $17.5M |
| Goldman Sachs Group Inc. | 0.00% | Add +16.3% | 599,296 | $17.0M |
| Segall Bryant & Hamill, LLC | 0.22% | Add +464.9% | 568,882 | $16.2M |
| Allianz Asset Management GmbH | 0.02% | Add +47.0% | 519,461 | $14.8M |
| Wells Fargo & Company | 0.00% | Reduce -3.1% | 498,199 | $14.1M |
| Cubist Systematic Strategies, LLC | 0.20% | Add +149.8% | 488,603 | $13.9M |
| Jacobs Levy Equity Management, Inc. | 0.05% | Reduce -71.4% | 479,850 | $13.6M |
| Susquehanna International Group, LLP | 0.02% | Add +85.4% | 462,904 | $13.1M |
| Ceredex Value Advisors LLC | 0.28% | New | 426,050 | $12.1M |
| UBS Group AG | 0.00% | Reduce -25.6% | 410,675 | $11.7M |
| Baird Financial Group, Inc. | 0.02% | Reduce -1.6% | 393,222 | $11.2M |
| Massachusetts Financial Services Co. | 0.00% | Add +21.3% | 384,671 | $10.9M |
| Jane Street Group, LLC | 0.01% | Add +425.7% | 376,882 | $10.7M |
| M&G PLC | 0.06% | Reduce -13.4% | 370,282 | $10.4M |
| Renaissance Technologies | 0.01% | Reduce -69.5% | 343,000 | $9.7M |
| Citadel Advisors | 0.01% | Reduce -35.5% | 337,971 | $9.6M |
| Raymond James Financial Inc. | 0.00% | Add +4.0% | 328,793 | $9.3M |
| Rhumbline Advisers | 0.01% | Reduce -2.1% | 315,856 | $9.0M |
| Alliancebernstein L.P. | 0.00% | Add +10.1% | 294,736 | $8.4M |
| UBS AM, a distinct business unit of UBS ASSET MANAGEMENT AMERICAS LLC | 0.00% | Reduce -34.9% | 288,286 | $8.2M |
| Bank of America Corp. | 0.00% | Reduce -50.2% | 287,427 | $8.2M |
| Sei Investments Co. | 0.01% | Add +23.8% | 242,283 | $6.9M |
| Swiss National Bank | 0.00% | Add +1.5% | 239,500 | $6.8M |
| Allspring Global Investments Holdings, LLC | 0.01% | New | 227,679 | $6.7M |
| Squarepoint Ops LLC | 0.01% | Add +1.0% | 232,062 | $6.6M |
| JPMorgan Chase & Co. | 0.00% | Reduce -45.5% | 220,525 | $6.3M |
| Ieq Capital, LLC | 0.02% | Add +87.8% | 219,608 | $6.2M |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 0.01% | Reduce -11.4% | 214,764 | $6.1M |
| Amundi | 0.00% | Reduce -51.4% | 179,144 | $5.5M |
| ExodusPoint Capital Management, LP | 0.08% | Add +219.3% | 192,084 | $5.5M |
| Barclays PLC | 0.00% | Add +45.6% | 190,217 | $5.4M |
| Legal & General Group Plc | 0.00% | Reduce -4.3% | 190,049 | $5.4M |
| UG Investment Advisers Ltd. | 0.86% | Reduce -84.0% | 177,265 | $5.0M |
| Point72 Asset Management | 0.01% | Reduce -65.6% | 168,803 | $4.8M |
| Acadian Asset Management LLC | 0.01% | Add +160.8% | 163,442 | $4.6M |
| Federated Hermes, Inc. | 0.01% | Reduce -0.1% | 152,840 | $4.3M |
| State of Alaska, Department of Revenue | 0.04% | Reduce -55.6% | 152,753 | $4.3M |
| DNB Asset Management AS | 0.01% | New | 139,666 | $4.0M |
| Russell Investments Group, Ltd. | 0.00% | Reduce -63.5% | 138,371 | $3.9M |
| Cerity Partners LLC | 0.01% | Reduce -24.1% | 138,062 | $3.9M |
| Retirement Systems of Alabama | 0.01% | Reduce -1.0% | 137,452 | $3.9M |
| Faithward Advisors, LLC | 0.54% | Add +1.8% | 128,463 | $3.6M |
| Victory Capital Management Inc. | 0.00% | Reduce -18.4% | 126,128 | $3.6M |
| 1492 Capital Management LLC | 1.39% | Add +11.7% | 120,340 | $3.4M |
| D. E. Shaw & Co. | 0.00% | Reduce -91.1% | 118,900 | $3.4M |
| California State Teachers Retirement System | 0.00% | Add +13.2% | 116,323 | $3.3M |
| CANADA LIFE ASSURANCE Co | 0.00% | Add +3.4% | 114,359 | $3.3M |
| Twinbeech Capital LP | 0.13% | Reduce -57.4% | 114,601 | $3.3M |
| Engineers Gate Manager LP | 0.03% | Reduce -14.2% | 105,851 | $3.0M |
| State of Wisconsin Investment Board | 0.01% | Reduce -0.0% | 105,408 | $3.0M |
| Soviero Asset Management, LP | 1.84% | New | 105,000 | $3.0M |
| HRT Financial LP | 0.01% | Reduce -55.3% | 98,386 | $2.8M |
| Mariner, LLC | 0.00% | Add +22.1% | 97,900 | $2.8M |
| Cwm, LLC | 0.01% | Add +87.0% | 97,100 | $2.8M |
| Edgestream Partners, L.P. | 0.08% | New | 97,078 | $2.8M |
| Holocene Advisors, LP | 0.01% | Reduce -48.5% | 95,821 | $2.7M |
| Manufacturers Life Insurance Company, The | 0.00% | Reduce -5.6% | 92,714 | $2.6M |
| GHP Investment Advisors, Inc. | 0.10% | Add +4.8% | 86,871 | $2.5M |
| Twin Tree Management, LP | 0.11% | Add +3.4% | 82,886 | $2.4M |
| Royal Bank of Canada | 0.00% | Add +33.3% | 82,086 | $2.3M |
| LPL Financial LLC | 0.00% | Reduce -9.6% | 81,626 | $2.3M |
| T. Rowe Price Associates Inc. | 0.00% | Add +5.0% | 80,955 | $2.3M |
| Grandeur Peak Global Advisors, LLC | 0.30% | Add +12.5% | 79,850 | $2.3M |
| Silvercrest Asset Management Group LLC | 0.01% | Reduce -0.3% | 78,525 | $2.2M |
| Voya Investment Management LLC | 0.00% | Add +1.8% | 77,350 | $2.2M |
| Philadelphia Trust Co. | 0.15% | No change | 76,400 | $2.2M |
| Voleon Capital Management LP | 0.05% | New | 74,889 | $2.1M |
| Quantinno Capital Management LP | 0.01% | Add +30.6% | 71,183 | $2.0M |
| Oppenheimer Asset Management Inc. | 0.02% | Reduce -1.0% | 68,005 | $1.9M |
| Dark Forest Capital Management LP | 0.07% | Reduce -79.9% | 67,844 | $1.9M |
| Knights of Columbus Asset Advisors LLC | 0.11% | New | 67,552 | $1.9M |
| Channing Capital Management, LLC | 0.05% | New | 65,941 | $1.9M |
"% of holder's portfolio" is AMKR's weight in each manager's 13F, not the share of Amkor Technology Inc. the manager owns.