Amkor Technology, Inc.
AMKR- Exchange
- Nasdaq
- Industry
- Semiconductors & Related Devices
- SEC CIK
- 0001047127
In the last 90 days, Amkor Technology, Inc. insiders filed 0 open-market purchases and 8 sales; 648 institutions reported holding it in 13F filings for Q2 2026, worth $9.95B in total; Maverick Capital is the only superinvestor holding it.
13F holders, Q3 2025
Institutional positions in Amkor Technology, Inc. as of Sep 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 383
- +38 vs. Q2 2025
- Shares held
- 107.7M
- −4.40M (−3.9%) vs. Q2 2025
- Total value
- $3.06B
- +$702.7M (+29.9%) vs. Q2 2025
- New holders
- 77
- 125 more added
- Sold out
- 39
- 121 more reduced
3 institutions that held it in Q2 2025 haven't filed for Q3 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q2 2025: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting AMKR on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 648 | $9.95B |
| Q1 2026 | 533 | $5.44B |
| Q4 2025 | 455 | $4.49B |
| Q3 2025 | 383 | $3.06B |
| Q2 2025 | 348 | $2.37B |
| Q1 2025 | 347 | $1.96B |
| Q4 2024 | 335 | $2.81B |
| Q3 2024 | 359 | $3.27B |
| Q2 2024 | 395 | $4.22B |
| Q1 2024 | 338 | $3.43B |
| Q4 2023 | 317 | $3.50B |
| Q3 2023 | 305 | $2.33B |
| Q2 2023 | 300 | $2.86B |
| Q1 2023 | 294 | $2.45B |
| Q4 2022 | 294 | $2.27B |
| Q3 2022 | 274 | $1.61B |
| Q2 2022 | 266 | $1.61B |
| Q1 2022 | 281 | $2.05B |
| Q4 2021 | 273 | $2.33B |
| Q3 2021 | 269 | $2.35B |
| Q2 2021 | 256 | $2.22B |
| Q1 2021 | 255 | $2.28B |
Institutions, Q3 2025
Shares, value and share of portfolio for each institution holding Amkor Technology, Inc.; share changes are against Q2 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Vanguard Group Inc | 15,779,847 | $448.1M | 0.01% | +687,900+4.6% | Added |
| BlackRock, Inc. | 13,834,810 | $392.9M | 0.01% | −1,070,378−7.2% | Reduced |
| Dimensional Fund Advisors LP | 13,151,210 | $373.5M | 0.08% | −126,575−1.0% | Reduced |
| AQR Capital Management LLC | 4,211,529 | $119.6M | 0.08% | +653,489+18.4% | Added |
| Earnest Partners LLC | 4,206,353 | $119.5M | 0.52% | −218,759−4.9% | Reduced |
| LSV Asset Management | 3,981,356 | $113.1M | 0.25% | −850,177−17.6% | Reduced |
| American Century Companies Inc | 3,835,987 | $108.9M | 0.06% | +17,656+0.5% | Added |
| State Street Corp | 3,426,411 | $97.3M | 0.00% | +107,118+3.2% | Added |
| SW Investment Management LLC | 2,650,000 | $75.3M | 16.12% | 00.0% | Unchanged |
| Geode Capital Management, LLC | 2,279,431 | $64.7M | 0.00% | +23,956+1.1% | Added |
| Principal Financial Group Inc | 2,268,840 | $64.4M | 0.03% | −61,840−2.7% | Reduced |
| Charles Schwab Investment Management Inc | 2,195,166 | $62.3M | 0.01% | +41,675+1.9% | Added |
| First Trust Advisors LP | 1,981,609 | $56.3M | 0.04% | +296,057+17.6% | Added |
| Arrowstreet Capital, Limited Partnership | 1,574,607 | $44.7M | 0.03% | +1,186,313+305.5% | Added |
| Morgan Stanley | 1,466,387 | $41.6M | 0.00% | +160,391+12.3% | Added |
| Gotham Asset Management, LLC | 1,413,719 | $40.1M | 0.17% | +90,388+6.8% | Added |
| Bank of New York Mellon Corp | 1,343,819 | $38.2M | 0.01% | −348,842−20.6% | Reduced |
| FMR LLC | 1,285,635 | $36.5M | 0.00% | −1,386−0.1% | Reduced |
| Invesco Ltd. | 1,229,931 | $34.9M | 0.01% | +703,617+133.7% | Added |
| Northern Trust Corp | 914,872 | $26.0M | 0.00% | −10,074−1.1% | Reduced |
| Bandera Partners LLC | 773,493 | $22.0M | 9.63% | 00.0% | Unchanged |
| Envestnet Asset Management Inc | 769,803 | $21.9M | 0.01% | −10,046−1.3% | Reduced |
| Millennium Management LLC | 740,406 | $21.0M | 0.02% | −586,809−44.2% | Reduced |
| Nuveen, LLC | 735,667 | $20.9M | 0.01% | +524,795+248.9% | Added |
| Fisher Asset Management, LLC | 687,918 | $19.5M | 0.01% | +65,485+10.5% | Added |
| Royce & Associates LP | 661,741 | $18.8M | 0.19% | −11,019−1.6% | Reduced |
| Wellington Management Group LLP | 659,806 | $18.7M | 0.00% | +375,924+132.4% | Added |
| Ameriprise Financial Inc | 616,511 | $17.5M | 0.00% | +408,941+197.0% | Added |
| Goldman Sachs Group Inc | 599,296 | $17.0M | 0.00% | +83,946+16.3% | Added |
| Segall Bryant & Hamill, LLC | 568,882 | $16.2M | 0.22% | +468,168+464.8% | Added |
| Allianz Asset Management GmbH | 519,461 | $14.8M | 0.02% | +166,091+47.0% | Added |
| Wells Fargo & Company | 498,199 | $14.1M | 0.00% | −15,836−3.1% | Reduced |
| Cubist Systematic Strategies, LLC | 488,603 | $13.9M | 0.20% | +292,994+149.8% | Added |
| Jacobs Levy Equity Management, Inc | 479,850 | $13.6M | 0.05% | −1,200,455−71.4% | Reduced |
| Susquehanna International Group, LLP | 462,904 | $13.1M | 0.02% | +213,184+85.4% | Added |
| Ceredex Value Advisors LLC | 426,050 | $12.1M | 0.28% | +426,050 | New |
| UBS Group AG | 410,675 | $11.7M | 0.00% | −141,500−25.6% | Reduced |
| Baird Financial Group, Inc. | 393,222 | $11.2M | 0.02% | −6,418−1.6% | Reduced |
| Massachusetts Financial Services Co | 384,671 | $10.9M | 0.00% | +67,578+21.3% | Added |
| Jane Street Group, LLC | 376,882 | $10.7M | 0.01% | +305,192+425.7% | Added |
| M&G Plc | 370,282 | $10.4M | 0.06% | −57,394−13.4% | Reduced |
| Renaissance Technologies LLC | 343,000 | $9.74M | 0.01% | −782,100−69.5% | Reduced |
| Citadel Advisors LLC | 337,971 | $9.60M | 0.01% | −186,054−35.5% | Reduced |
| Raymond James Financial Inc | 328,793 | $9.34M | 0.00% | +12,689+4.0% | Added |
| Rhumbline Advisers | 315,856 | $8.97M | 0.01% | −6,797−2.1% | Reduced |
| Alliancebernstein L.P. | 294,736 | $8.37M | 0.00% | +27,112+10.1% | Added |
| UBS Asset Management Americas Inc | 288,286 | $8.19M | 0.00% | −154,472−34.9% | Reduced |
| Bank of America Corp | 287,427 | $8.16M | 0.00% | −289,987−50.2% | Reduced |
| SEI Investments Co | 242,283 | $6.88M | 0.01% | +46,612+23.8% | Added |
| Swiss National Bank | 239,500 | $6.80M | 0.00% | +3,500+1.5% | Added |
| Allspring Global Investments Holdings, LLC | 227,679 | $6.71M | 0.01% | +227,679 | New |
| Squarepoint Ops LLC | 232,062 | $6.59M | 0.01% | +2,328+1.0% | Added |
| JPMorgan Chase & Co | 220,525 | $6.26M | 0.00% | −183,736−45.4% | Reduced |
| Ieq Capital, LLC | 219,608 | $6.24M | 0.02% | +102,670+87.8% | Added |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 214,764 | $6.10M | 0.01% | −27,568−11.4% | Reduced |
| Amundi | 179,144 | $5.46M | 0.00% | −189,269−51.4% | Reduced |
| ExodusPoint Capital Management, LP | 192,084 | $5.46M | 0.08% | +131,923+219.3% | Added |
| Barclays PLC | 190,217 | $5.40M | 0.00% | +59,538+45.6% | Added |
| Legal & General Group Plc | 190,049 | $5.40M | 0.00% | −8,592−4.3% | Reduced |
| UG Investment Advisers Ltd. | 177,265 | $5.03M | 0.79% | −932,216−84.0% | Reduced |
| Point72 Asset Management, L.P. | 168,803 | $4.79M | 0.01% | −322,497−65.6% | Reduced |
| Acadian Asset Management LLC | 163,442 | $4.64M | 0.01% | +100,762+160.8% | Added |
| Federated Hermes, Inc. | 152,840 | $4.34M | 0.01% | −232−0.2% | Reduced |
| State of Alaska, Department of Revenue | 152,753 | $4.34M | 0.04% | −191,184−55.6% | Reduced |
| DnB Asset Management AS | 139,666 | $3.97M | 0.01% | +139,666 | New |
| Russell Investments Group, Ltd. | 138,371 | $3.93M | 0.00% | −240,282−63.5% | Reduced |
| Cerity Partners LLC | 138,062 | $3.92M | 0.01% | −43,810−24.1% | Reduced |
| Retirement Systems of Alabama | 137,452 | $3.90M | 0.01% | −1,448−1.0% | Reduced |
| Ambassador Advisors, LLC | 128,463 | $3.65M | 0.54% | +2,326+1.8% | Added |
| Victory Capital Management Inc | 126,128 | $3.58M | 0.00% | −28,421−18.4% | Reduced |
| 1492 Capital Management LLC | 120,340 | $3.42M | 1.38% | +12,568+11.7% | Added |
| D. E. Shaw & Co., Inc. | 118,900 | $3.38M | 0.00% | −1,218,833−91.1% | Reduced |
| California State Teachers Retirement System | 116,323 | $3.30M | 0.00% | +13,547+13.2% | Added |
| Great West Life Assurance Co | 114,359 | $3.26M | 0.00% | +3,807+3.4% | Added |
| Twinbeech Capital LP | 114,601 | $3.25M | 0.13% | −154,370−57.4% | Reduced |
| Engineers Gate Manager LP | 105,851 | $3.01M | 0.03% | −17,442−14.1% | Reduced |
| State of Wisconsin Investment Board | 105,408 | $2.99M | 0.01% | −450.0% | Reduced |
| Soviero Asset Management, LP | 105,000 | $2.98M | 1.84% | +105,000 | New |
| HRT Financial LP | 98,386 | $2.79M | 0.01% | −121,809−55.3% | Reduced |
| Mariner, LLC | 97,900 | $2.78M | 0.00% | +17,722+22.1% | Added |
| CWM, LLC | 97,100 | $2.76M | 0.01% | +45,160+86.9% | Added |
| Edgestream Partners, L.P. | 97,078 | $2.76M | 0.08% | +97,078 | New |
| Holocene Advisors, LP | 95,821 | $2.72M | 0.01% | −90,415−48.5% | Reduced |
| Manufacturers Life Insurance Company, The | 92,714 | $2.63M | 0.00% | −5,521−5.6% | Reduced |
| GHP Investment Advisors, Inc. | 86,871 | $2.47M | 0.10% | +3,978+4.8% | Added |
| Twin Tree Management, LP | 82,886 | $2.35M | 0.11% | +2,706+3.4% | Added |
| Royal Bank of Canada | 82,086 | $2.33M | 0.00% | +20,506+33.3% | Added |
| LPL Financial LLC | 81,626 | $2.32M | 0.00% | −8,616−9.5% | Reduced |
| Price T Rowe Associates Inc | 80,955 | $2.30M | 0.00% | +3,867+5.0% | Added |
| Grandeur Peak Global Advisors, LLC | 79,850 | $2.27M | 0.30% | +8,850+12.5% | Added |
| Silvercrest Asset Management Group LLC | 78,525 | $2.23M | 0.01% | −220−0.3% | Reduced |
| Voya Investment Management LLC | 77,350 | $2.20M | 0.00% | +1,373+1.8% | Added |
| Philadelphia Trust Co | 76,400 | $2.17M | 0.15% | 00.0% | Unchanged |
| Voleon Capital Management LP | 74,889 | $2.13M | 0.05% | +74,889 | New |
| Quantinno Capital Management LP | 71,183 | $2.02M | 0.01% | +16,700+30.7% | Added |
| Oppenheimer Asset Management Inc. | 68,005 | $1.93M | 0.02% | −673−1.0% | Reduced |
| Dark Forest Capital Management LP | 67,844 | $1.93M | 0.07% | −269,771−79.9% | Reduced |
| Knights of Columbus Asset Advisors LLC | 67,552 | $1.92M | 0.11% | +67,552 | New |
| Channing Capital Management, LLC | 65,941 | $1.87M | 0.05% | +65,941 | New |
| Group One Trading, L.P. | 65,699 | $1.87M | 0.06% | +16,673+34.0% | Added |