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, Q1 2026
Institutional positions in Amkor Technology, Inc. as of Mar 31, 2026. 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
- 533
- +85 vs. Q4 2025
- Shares held
- 121.4M
- +24.9M (+25.8%) vs. Q4 2025
- Total value
- $5.44B
- +$1.63B (+42.7%) vs. Q4 2025
- New holders
- 141
- 190 more added
- Sold out
- 56
- 141 more reduced
7 institutions that held it in Q4 2025 haven't filed for Q1 2026 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.
Compare with Q4 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, Q1 2026
Shares, value and share of portfolio for each institution holding Amkor Technology, Inc.; share changes are against Q4 2025.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Quadrature Capital Ltd | 54,737 | $2.46M | 0.03% | +54,737 | New |
| Jackson Creek Investment Advisors LLC | 55,544 | $2.50M | 0.74% | −3,066−5.2% | Reduced |
| MetLife Investment Management | 56,134 | $2.53M | 0.01% | +565+1.0% | Added |
| Oppenheimer Asset Management Inc. | 56,269 | $2.53M | 0.03% | +56,269 | New |
| Cetera Investment Advisers | 56,445 | $2.54M | 0.00% | +29,977+113.3% | Added |
| Cambridge Investment Research Advisors, Inc. | 56,535 | $2.55M | 0.01% | −410−0.7% | Reduced |
| TCW Group Inc | 56,720 | $2.55M | 0.02% | +56,720 | New |
| Oliver Luxxe Assets LLC | 56,830 | $2.56M | 0.38% | −270−0.5% | Reduced |
| Mubadala Investment Co PJSC | 57,607 | $2.59M | 0.01% | −35,594−38.2% | Reduced |
| Wealth Enhancement Advisory Services, LLC | 62,896 | $2.64M | 0.01% | +9,203+17.1% | Added |
| Polymer Capital Management (US) LLC | 58,883 | $2.65M | 0.39% | +36,583+164.0% | Added |
| Diker Management LLC | 60,000 | $2.70M | 2.41% | +60,000 | New |
| Assetmark, Inc | 60,105 | $2.71M | 0.01% | +59,626+12,448.0% | Added |
| Amalgamated Bank | 60,301 | $2.71M | 0.02% | +6,295+11.7% | Added |
| XTX Topco Ltd | 61,173 | $2.75M | 0.05% | +41,484+210.7% | Added |
| CI Private Wealth, LLC | 65,108 | $2.76M | 0.00% | −154,540−70.4% | Reduced |
| State Board of Administration of Florida Retirement System | 61,578 | $2.77M | 0.01% | +6,017+10.8% | Added |
| AnglePoint Asset Management Ltd | 61,600 | $2.77M | 1.96% | +61,600 | New |
| Convergence Investment Partners, LLC | 62,207 | $2.80M | 0.46% | +62,207 | New |
| Prevail Innovative Wealth Advisors, LLC | 62,817 | $2.83M | 0.48% | +62,817 | New |
| Mariner, LLC | 63,256 | $2.85M | 0.00% | +22,358+54.7% | Added |
| Philadelphia Trust Co | 66,400 | $2.99M | 0.21% | 00.0% | Unchanged |
| Los Angeles Capital Management LLC | 72,232 | $3.25M | 0.01% | +71,907+22,125.2% | Added |
| Great West Life Assurance Co | 72,950 | $3.29M | 0.01% | −222−0.3% | Reduced |
| Jackson Square Capital, LLC | 73,050 | $3.29M | 0.69% | −1,357−1.8% | Reduced |
| HSBC Holdings PLC | 73,899 | $3.30M | 0.00% | −140,977−65.6% | Reduced |
| Assenagon Asset Management S.A. | 76,398 | $3.44M | 0.01% | +76,398 | New |
| Intech Investment Management LLC | 82,772 | $3.73M | 0.04% | +60,707+275.1% | Added |
| Victory Capital Management Inc | 83,335 | $3.75M | 0.00% | −13,204−13.7% | Reduced |
| Universal- Beteiligungs- und Servicegesellschaft mbH | 95,643 | $4.31M | 0.01% | −75,629−44.2% | Reduced |
| Walleye Trading LLC | 96,813 | $4.36M | 0.09% | +23,216+31.5% | Added |
| Franklin Resources Inc | 97,429 | $4.39M | 0.00% | −15,871−14.0% | Reduced |
| Manufacturers Life Insurance Company, The | 98,525 | $4.44M | 0.00% | +7,769+8.6% | Added |
| CWM, LLC | 103,263 | $4.65M | 0.01% | +6,089+6.3% | Added |
| Farallon Capital Management, L.L.C. | 104,000 | $4.68M | 0.03% | −360,000−77.6% | Reduced |
| Creative Planning | 107,529 | $4.84M | 0.00% | +22,259+26.1% | Added |
| Quantinno Capital Management LP | 107,655 | $4.85M | 0.01% | +12,991+13.7% | Added |
| Vanguard Asset Management, Ltd | 111,892 | $5.04M | 0.00% | +111,892 | New |
| Y-Intercept (Hong Kong) Ltd | 115,862 | $5.22M | 0.10% | +115,862 | New |
| Covea Finance | 116,755 | $5.26M | 0.18% | +51,555+79.1% | Added |
| Bank Julius Baer & Co. Ltd, Zurich | 127,933 | $5.43M | 0.02% | +127,933 | New |
| Cerity Partners LLC | 121,377 | $5.47M | 0.01% | −10,269−7.8% | Reduced |
| Jump Financial, LLC | 126,727 | $5.71M | 0.08% | +93,365+279.9% | Added |
| State of Alaska, Department of Revenue | 126,928 | $5.71M | 0.06% | +85+0.1% | Added |
| Connor, Clark & Lunn Investment Management Ltd. | 129,091 | $5.81M | 0.01% | +107,827+507.1% | Added |
| Citigroup Inc | 132,050 | $5.95M | 0.00% | +76,973+139.8% | Added |
| Susquehanna International Group, LLP | 132,059 | $5.95M | 0.01% | +60,555+84.7% | Added |
| Aquatic Capital Management LLC | 134,418 | $6.05M | 0.17% | +134,418 | New |
| Ieq Capital, LLC | 137,163 | $6.18M | 0.03% | −2,395−1.7% | Reduced |
| Retirement Systems of Alabama | 139,466 | $6.28M | 0.02% | +2,998+2.2% | Added |
| Rokos Capital Management LLP | 142,698 | $6.43M | 0.11% | −82,274−36.6% | Reduced |
| California State Teachers Retirement System | 143,178 | $6.45M | 0.01% | +25,205+21.4% | Added |
| Engineers Gate Manager LP | 148,561 | $6.69M | 0.08% | +69,900+88.9% | Added |
| Credit Agricole S A | 151,468 | $6.82M | 0.02% | −11,000−6.8% | Reduced |
| Federated Hermes, Inc. | 156,526 | $7.05M | 0.01% | +2,889+1.9% | Added |
| Barclays PLC | 157,166 | $7.08M | 0.00% | −45,045−22.3% | Reduced |
| Legal & General Group Plc | 171,238 | $7.71M | 0.00% | −13,421−7.3% | Reduced |
| Occudo Quantitative Strategies LP | 111,045 | $7.75M | 0.42% | −54,795−33.0% | Reduced |
| Ameriprise Financial Inc | 177,271 | $7.98M | 0.00% | −38,450−17.8% | Reduced |
| ExodusPoint Capital Management, LP | 186,465 | $8.40M | 0.08% | +76,140+69.0% | Added |
| Citadel Advisors LLC | 195,841 | $8.82M | 0.01% | −736,870−79.0% | Reduced |
| M&G Plc | 200,182 | $9.01M | 0.05% | −105,720−34.6% | Reduced |
| Swiss National Bank | 244,500 | $11.0M | 0.01% | +800+0.3% | Added |
| Algert Global LLC | 248,600 | $11.2M | 0.17% | +248,600 | New |
| Seven Grand Managers, LLC | 250,000 | $11.3M | 0.75% | +250,000 | New |
| CastleKnight Management LP | 251,200 | $11.3M | 0.53% | +77,200+44.4% | Added |
| FMR LLC | 257,464 | $11.6M | 0.00% | −35,003−12.0% | Reduced |
| Amundi | 263,868 | $11.9M | 0.00% | +256,632+3,546.6% | Added |
| Bank of America Corp | 273,541 | $12.3M | 0.00% | −50,703−15.6% | Reduced |
| Royce & Associates LP | 284,476 | $12.8M | 0.13% | −167,553−37.1% | Reduced |
| BNP Paribas Arbitrage, SA | 288,498 | $13.0M | 0.01% | +236,715+457.1% | Added |
| UBS Asset Management Americas Inc | 293,072 | $13.2M | 0.00% | +16,574+6.0% | Added |
| Weiss Asset Management LP | 300,000 | $13.5M | 0.25% | +217,484+263.6% | Added |
| Tudor Investment Corp Et Al | 300,870 | $13.5M | 0.07% | +300,870 | New |
| Alliancebernstein L.P. | 350,306 | $13.8M | 0.00% | −40,234−10.3% | Reduced |
| Ceredex Value Advisors LLC | 308,950 | $13.9M | 0.44% | −75,400−19.6% | Reduced |
| Wellington Management Group LLP | 309,134 | $13.9M | 0.00% | −129,952−29.6% | Reduced |
| Rhumbline Advisers | 314,616 | $14.2M | 0.01% | +11,462+3.8% | Added |
| Allspring Global Investments Holdings, LLC | 332,900 | $15.5M | 0.03% | +179,896+117.6% | Added |
| Qube Research & Technologies Ltd | 362,137 | $16.3M | 0.02% | +328,255+968.8% | Added |
| Massachusetts Financial Services Co | 366,793 | $16.5M | 0.01% | −15,548−4.1% | Reduced |
| Acadian Asset Management LLC | 394,264 | $17.7M | 0.03% | +204,161+107.4% | Added |
| Russell Investments Group, Ltd. | 400,134 | $18.0M | 0.02% | +268,684+204.4% | Added |
| SEI Investments Co | 401,815 | $18.1M | 0.02% | +101,523+33.8% | Added |
| Baird Financial Group, Inc. | 403,777 | $18.2M | 0.03% | +18,062+4.7% | Added |
| Light Street Capital Management, LLC | 406,990 | $18.3M | 3.69% | +119,095+41.4% | Added |
| Segall Bryant & Hamill, LLC | 443,750 | $20.0M | 0.29% | −453,887−50.6% | Reduced |
| Lord, Abbett & Co. LLC | 455,929 | $20.5M | 0.07% | +455,929 | New |
| Man Group plc | 469,338 | $21.1M | 0.04% | +437,354+1,367.4% | Added |
| Wells Fargo & Company | 478,466 | $21.5M | 0.00% | −7,470−1.5% | Reduced |
| HRT Financial LP | 499,599 | $22.5M | 0.06% | +188,697+60.7% | Added |
| Raymond James Financial Inc | 516,923 | $23.3M | 0.01% | +192,699+59.4% | Added |
| Nuveen, LLC | 678,235 | $30.5M | 0.01% | −24,330−3.5% | Reduced |
| Bandera Partners LLC | 693,519 | $31.2M | 14.13% | 00.0% | Unchanged |
| Vanguard Fiduciary Trust Co | 716,727 | $32.3M | 0.01% | +716,727 | New |
| Envestnet Asset Management Inc | 741,052 | $33.4M | 0.01% | +20,668+2.9% | Added |
| Price T Rowe Associates Inc | 746,424 | $33.6M | 0.00% | +615,454+469.9% | Added |
| Millennium Management LLC | 773,243 | $34.8M | 0.03% | +537,091+227.4% | Added |
| Burkehill Global Management, LP | 800,000 | $36.0M | 1.79% | +800,000 | New |
| LPL Financial LLC | 848,249 | $38.2M | 0.01% | +777,964+1,106.9% | Added |