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 |
|---|---|---|---|---|---|
| CWM, LLC | 97,100 | $2.76M | 0.01% | +45,160+86.9% | Added |
| Mariner, LLC | 97,900 | $2.78M | 0.00% | +17,722+22.1% | Added |
| HRT Financial LP | 98,386 | $2.79M | 0.01% | −121,809−55.3% | Reduced |
| Soviero Asset Management, LP | 105,000 | $2.98M | 1.84% | +105,000 | New |
| State of Wisconsin Investment Board | 105,408 | $2.99M | 0.01% | −450.0% | Reduced |
| Engineers Gate Manager LP | 105,851 | $3.01M | 0.03% | −17,442−14.1% | Reduced |
| Twinbeech Capital LP | 114,601 | $3.25M | 0.13% | −154,370−57.4% | Reduced |
| Great West Life Assurance Co | 114,359 | $3.26M | 0.00% | +3,807+3.4% | Added |
| California State Teachers Retirement System | 116,323 | $3.30M | 0.00% | +13,547+13.2% | Added |
| D. E. Shaw & Co., Inc. | 118,900 | $3.38M | 0.00% | −1,218,833−91.1% | Reduced |
| 1492 Capital Management LLC | 120,340 | $3.42M | 1.38% | +12,568+11.7% | Added |
| Victory Capital Management Inc | 126,128 | $3.58M | 0.00% | −28,421−18.4% | Reduced |
| Ambassador Advisors, LLC | 128,463 | $3.65M | 0.54% | +2,326+1.8% | Added |
| Retirement Systems of Alabama | 137,452 | $3.90M | 0.01% | −1,448−1.0% | Reduced |
| Cerity Partners LLC | 138,062 | $3.92M | 0.01% | −43,810−24.1% | Reduced |
| Russell Investments Group, Ltd. | 138,371 | $3.93M | 0.00% | −240,282−63.5% | Reduced |
| DnB Asset Management AS | 139,666 | $3.97M | 0.01% | +139,666 | New |
| State of Alaska, Department of Revenue | 152,753 | $4.34M | 0.04% | −191,184−55.6% | Reduced |
| Federated Hermes, Inc. | 152,840 | $4.34M | 0.01% | −232−0.2% | Reduced |
| Acadian Asset Management LLC | 163,442 | $4.64M | 0.01% | +100,762+160.8% | Added |
| Point72 Asset Management, L.P. | 168,803 | $4.79M | 0.01% | −322,497−65.6% | Reduced |
| UG Investment Advisers Ltd. | 177,265 | $5.03M | 0.79% | −932,216−84.0% | Reduced |
| Legal & General Group Plc | 190,049 | $5.40M | 0.00% | −8,592−4.3% | Reduced |
| Barclays PLC | 190,217 | $5.40M | 0.00% | +59,538+45.6% | Added |
| ExodusPoint Capital Management, LP | 192,084 | $5.46M | 0.08% | +131,923+219.3% | Added |
| Amundi | 179,144 | $5.46M | 0.00% | −189,269−51.4% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 214,764 | $6.10M | 0.01% | −27,568−11.4% | Reduced |
| Ieq Capital, LLC | 219,608 | $6.24M | 0.02% | +102,670+87.8% | Added |
| JPMorgan Chase & Co | 220,525 | $6.26M | 0.00% | −183,736−45.4% | Reduced |
| Squarepoint Ops LLC | 232,062 | $6.59M | 0.01% | +2,328+1.0% | Added |
| Allspring Global Investments Holdings, LLC | 227,679 | $6.71M | 0.01% | +227,679 | New |
| Swiss National Bank | 239,500 | $6.80M | 0.00% | +3,500+1.5% | Added |
| SEI Investments Co | 242,283 | $6.88M | 0.01% | +46,612+23.8% | Added |
| Bank of America Corp | 287,427 | $8.16M | 0.00% | −289,987−50.2% | Reduced |
| UBS Asset Management Americas Inc | 288,286 | $8.19M | 0.00% | −154,472−34.9% | Reduced |
| Alliancebernstein L.P. | 294,736 | $8.37M | 0.00% | +27,112+10.1% | Added |
| Rhumbline Advisers | 315,856 | $8.97M | 0.01% | −6,797−2.1% | Reduced |
| Raymond James Financial Inc | 328,793 | $9.34M | 0.00% | +12,689+4.0% | Added |
| Citadel Advisors LLC | 337,971 | $9.60M | 0.01% | −186,054−35.5% | Reduced |
| Renaissance Technologies LLC | 343,000 | $9.74M | 0.01% | −782,100−69.5% | Reduced |
| M&G Plc | 370,282 | $10.4M | 0.06% | −57,394−13.4% | Reduced |
| Jane Street Group, LLC | 376,882 | $10.7M | 0.01% | +305,192+425.7% | Added |
| Massachusetts Financial Services Co | 384,671 | $10.9M | 0.00% | +67,578+21.3% | Added |
| Baird Financial Group, Inc. | 393,222 | $11.2M | 0.02% | −6,418−1.6% | Reduced |
| UBS Group AG | 410,675 | $11.7M | 0.00% | −141,500−25.6% | Reduced |
| Ceredex Value Advisors LLC | 426,050 | $12.1M | 0.28% | +426,050 | New |
| Susquehanna International Group, LLP | 462,904 | $13.1M | 0.02% | +213,184+85.4% | Added |
| Jacobs Levy Equity Management, Inc | 479,850 | $13.6M | 0.05% | −1,200,455−71.4% | Reduced |
| Cubist Systematic Strategies, LLC | 488,603 | $13.9M | 0.20% | +292,994+149.8% | Added |
| Wells Fargo & Company | 498,199 | $14.1M | 0.00% | −15,836−3.1% | Reduced |
| Allianz Asset Management GmbH | 519,461 | $14.8M | 0.02% | +166,091+47.0% | Added |
| Segall Bryant & Hamill, LLC | 568,882 | $16.2M | 0.22% | +468,168+464.8% | Added |
| Goldman Sachs Group Inc | 599,296 | $17.0M | 0.00% | +83,946+16.3% | Added |
| Ameriprise Financial Inc | 616,511 | $17.5M | 0.00% | +408,941+197.0% | Added |
| Wellington Management Group LLP | 659,806 | $18.7M | 0.00% | +375,924+132.4% | Added |
| Royce & Associates LP | 661,741 | $18.8M | 0.19% | −11,019−1.6% | Reduced |
| Fisher Asset Management, LLC | 687,918 | $19.5M | 0.01% | +65,485+10.5% | Added |
| Nuveen, LLC | 735,667 | $20.9M | 0.01% | +524,795+248.9% | Added |
| Millennium Management LLC | 740,406 | $21.0M | 0.02% | −586,809−44.2% | Reduced |
| Envestnet Asset Management Inc | 769,803 | $21.9M | 0.01% | −10,046−1.3% | Reduced |
| Bandera Partners LLC | 773,493 | $22.0M | 9.63% | 00.0% | Unchanged |
| Northern Trust Corp | 914,872 | $26.0M | 0.00% | −10,074−1.1% | Reduced |
| Invesco Ltd. | 1,229,931 | $34.9M | 0.01% | +703,617+133.7% | Added |
| FMR LLC | 1,285,635 | $36.5M | 0.00% | −1,386−0.1% | Reduced |
| Bank of New York Mellon Corp | 1,343,819 | $38.2M | 0.01% | −348,842−20.6% | Reduced |
| Gotham Asset Management, LLC | 1,413,719 | $40.1M | 0.17% | +90,388+6.8% | Added |
| Morgan Stanley | 1,466,387 | $41.6M | 0.00% | +160,391+12.3% | Added |
| Arrowstreet Capital, Limited Partnership | 1,574,607 | $44.7M | 0.03% | +1,186,313+305.5% | Added |
| First Trust Advisors LP | 1,981,609 | $56.3M | 0.04% | +296,057+17.6% | Added |
| Charles Schwab Investment Management Inc | 2,195,166 | $62.3M | 0.01% | +41,675+1.9% | Added |
| Principal Financial Group Inc | 2,268,840 | $64.4M | 0.03% | −61,840−2.7% | Reduced |
| Geode Capital Management, LLC | 2,279,431 | $64.7M | 0.00% | +23,956+1.1% | Added |
| SW Investment Management LLC | 2,650,000 | $75.3M | 16.12% | 00.0% | Unchanged |
| State Street Corp | 3,426,411 | $97.3M | 0.00% | +107,118+3.2% | Added |
| American Century Companies Inc | 3,835,987 | $108.9M | 0.06% | +17,656+0.5% | Added |
| LSV Asset Management | 3,981,356 | $113.1M | 0.25% | −850,177−17.6% | Reduced |
| Earnest Partners LLC | 4,206,353 | $119.5M | 0.52% | −218,759−4.9% | Reduced |
| AQR Capital Management LLC | 4,211,529 | $119.6M | 0.08% | +653,489+18.4% | Added |
| Dimensional Fund Advisors LP | 13,151,210 | $373.5M | 0.08% | −126,575−1.0% | Reduced |
| BlackRock, Inc. | 13,834,810 | $392.9M | 0.01% | −1,070,378−7.2% | Reduced |
| Vanguard Group Inc | 15,779,847 | $448.1M | 0.01% | +687,900+4.6% | Added |
| Franklin Resources Inc | 4,227 | – | – | −55,972−93.0% | Reduced |
| Colony Group, LLC | 121,253 | – | – | +121,253 | New |
| Voloridge Investment Management, LLC | 0 | $0 | 0.00% | −952,950−100.0% | Sold out |
| Maxi Investments CY Ltd | 0 | $0 | 0.00% | −243,500−100.0% | Sold out |
| Jefferies Financial Group Inc. | 0 | $0 | 0.00% | −199,176−100.0% | Sold out |
| Granite Investment Partners, LLC | 0 | $0 | 0.00% | −152,515−100.0% | Sold out |
| Aquatic Capital Management LLC | 0 | $0 | 0.00% | −131,479−100.0% | Sold out |
| Caption Management, LLC | 0 | $0 | 0.00% | −118,334−100.0% | Sold out |
| Bank of Nova Scotia | 0 | $0 | 0.00% | −92,758−100.0% | Sold out |
| Marshall Wace, LLP | 0 | $0 | 0.00% | −76,923−100.0% | Sold out |
| Hudson Bay Capital Management LP | 0 | $0 | 0.00% | −70,539−100.0% | Sold out |
| Nissay Asset Management Corp | 0 | $0 | 0.00% | −66,101−100.0% | Sold out |
| Bridgeway Capital Management, LLC | 0 | $0 | 0.00% | −60,600−100.0% | Sold out |
| Jump Financial, LLC | 0 | $0 | 0.00% | −54,490−100.0% | Sold out |
| Mirabella Financial Services LLP | 0 | $0 | 0.00% | −48,223−100.0% | Sold out |
| South Dakota Investment Council | 0 | $0 | 0.00% | −40,593−100.0% | Sold out |
| Global X Japan Co., Ltd. | 0 | $0 | 0.00% | −20,419−100.0% | Sold out |
| Brevan Howard Capital Management LP | 0 | $0 | 0.00% | −20,264−100.0% | Sold out |
| AXA S.A. | 0 | $0 | 0.00% | −20,083−100.0% | Sold out |