AMKOR TECHNOLOGY INC (AMKR) Institutional Shareholders
AMKOR TECHNOLOGY INC (AMKR) is currently reported in institutional portfolios tracked by InsiderSet based on the latest available SEC Form 13F filings for the quarter ended June 30, 2026. The institutional investors covered on this page collectively reported approximately $9.34B in AMKR holdings during the latest filing period.
Blackrock, Inc. is currently the largest disclosed institutional shareholder of AMKR tracked by InsiderSet, reporting ownership valued at approximately $1.06B in its June 30, 2026 SEC Form 13F filing. Based on current market prices and the latest disclosed share count, the position is now estimated to be worth approximately $725.15M, representing an estimated loss of -31.59% since the filing period.
The top 10 institutional shareholders tracked on this page collectively account for approximately 53% of the total disclosed AMKR value among the investors covered in this analysis. Major shareholders include Blackrock, Inc., Vanguard Portfolio Management Llc, Dimensional Fund Advisors Lp, and several other long-term asset managers with concentrated positions in AMKOR TECHNOLOGY INC (AMKR).
This page ranks the largest institutional AMKR shareholders using publicly disclosed SEC Form 13F data, including reported values, estimated current holding values, portfolio allocation percentages, ownership concentration metrics, and historical holding changes across major hedge funds and investment firms.
Institutional Holders
625
Total Reported Value
$9.34B
Largest Holder
Blackrock, Inc.
Largest Position
$1.06B
Insider Transactions (90d)
23
Latest Filing Quarter
Q2 2026
New Institutional Positions
101
Funds Exiting Positions
0
| Name | Investor/Manager | Portfolio % | Quantity | Reported Balance | Current Estimated Value | Gain/loss Since Filing | Estimated Portfolio Performance |
|---|---|---|---|---|---|---|---|
| Blackrock, Inc. | 0.02% | 12,292,760 | $1,060,004,732 | $725,149,912 | -$334,854,820 | -31.59% | |
| Vanguard Portfolio Management Llc | 0.04% | 9,712,553 | $837,513,445 | $572,943,501 | -$264,569,944 | -31.59% | |
| Dimensional Fund Advisors Lp | 0.13% | 8,064,191 | $695,285,204 | $475,706,627 | -$219,578,577 | -31.58% | |
| Vanguard Capital Management Llc | 0.01% | 6,701,080 | $577,834,128 | $395,296,709 | -$182,537,419 | -31.59% | |
| Jpmorgan Chase & Co | 0.03% | 5,702,608 | $470,026,598 | $336,396,846 | -$133,629,752 | -28.43% | |
| State Street Corp | 0.01% | 3,730,584 | $321,688,258 | $220,067,150 | -$101,621,108 | -31.59% | |
| Aqr Capital Management Llc | 0.10% | 3,231,546 | $273,841,170 | $190,628,899 | -$83,212,271 | -30.39% | |
| Earnest Partners Llc | 0.89% | 2,852,492 | $245,970,385 | $168,268,503 | -$77,701,882 | -31.59% | |
| Geode Capital Management, Llc | 0.01% | 2,798,149 | $241,329,919 | $165,062,810 | -$76,267,109 | -31.60% | |
| Invesco Ltd. | 0.02% | 2,485,794 | $214,350,021 | $146,636,988 | -$67,713,033 | -31.59% | |
| Point72 Asset Management, L.P. | 0.33% | 2,477,326 | $213,619,821 | $146,137,461 | -$67,482,360 | -31.59% | |
| Principal Financial Group Inc | 0.08% | 1,970,200 | $169,847,580 | $116,222,098 | -$53,625,482 | -31.57% | |
| First Trust Advisors Lp | 0.09% | 1,836,306 | $158,344,246 | $108,323,691 | -$50,020,555 | -31.59% | |
| Charles Schwab Investment Management Inc | 0.02% | 1,832,535 | $158,019,494 | $108,101,240 | -$49,918,254 | -31.59% | |
| Sixth Street Partners Management Company, L.P. | 0.02% | 1,832,535 | $158,019,494 | $108,101,240 | -$49,918,254 | -31.59% | |
| Fisher Asset Management, Llc | 0.05% | 1,821,547 | $157,072,030 | $107,453,058 | -$49,618,972 | -31.59% | |
| Morgan Stanley | 0.01% | 1,525,685 | $131,559,913 | $90,000,158 | -$41,559,755 | -31.59% | |
| Norges Bank | 0.01% | 1,477,233 | $127,381,802 | $87,141,975 | -$40,239,827 | -31.59% | |
| Qube Research & Technologies Ltd | 0.11% | 1,161,478 | $100,154,248 | $68,515,587 | -$31,638,661 | -31.59% | |
| Two Sigma Investments, Lp | 0.07% | 1,069,101 | $92,188,579 | $63,066,268 | -$29,122,311 | -31.59% | |
| American Century Companies Inc | 0.04% | 1,055,656 | $91,029,232 | $62,273,147 | -$28,756,085 | -31.59% | |
| Bank Of New York Mellon Corp | 0.01% | 1,051,327 | $90,655,893 | $62,017,780 | -$28,638,113 | -31.59% | |
| Goldman Sachs Group Inc | 0.01% | 1,046,405 | $90,231,546 | $61,727,431 | -$28,504,115 | -31.59% | |
| Citadel Advisors Llc | 0.05% | 1,028,138 | $88,656,339 | $60,649,861 | -$28,006,478 | -31.59% | |
| Northern Trust Corp | 0.01% | 960,941 | $82,861,944 | $56,685,910 | -$26,176,034 | -31.59% | |
| Allianz Asset Management Gmbh | 0.08% | 999,265 | $73,624,434 | $58,946,642 | -$14,677,792 | -19.94% | |
| Fmr Llc | 0.00% | 836,386 | $72,121,552 | $49,338,410 | -$22,783,142 | -31.59% | |
| Gotham Asset Management, Llc | 0.16% | 816,161 | $70,377,563 | $48,145,337 | -$22,232,226 | -31.59% | |
| Wells Fargo & Company/Mn | 0.01% | 778,711 | $67,148,223 | $45,936,162 | -$21,212,061 | -31.59% | |
| Vanguard Fiduciary Trust Co | 0.01% | 760,465 | $65,574,897 | $44,859,830 | -$20,715,067 | -31.59% | |
| Nuveen, Llc | 0.01% | 710,410 | $61,258,579 | $41,907,086 | -$19,351,493 | -31.59% | |
| Bank Of Nova Scotia | 0.09% | 675,782 | $58,272,682 | $39,864,380 | -$18,408,302 | -31.59% | |
| Ubs Group Ag | 0.01% | 635,436 | $54,793,646 | $37,484,370 | -$17,309,276 | -31.59% | |
| D. E. Shaw & Co., Inc. | 0.03% | 624,860 | $53,881,678 | $36,860,491 | -$17,021,187 | -31.59% | |
| Millennium Management Llc | 0.04% | 622,252 | $53,656,790 | $36,706,645 | -$16,950,145 | -31.59% | |
| Light Street Capital Management, Llc | 6.05% | 596,783 | $51,460,598 | $35,204,229 | -$16,256,369 | -31.59% | |
| Renaissance Technologies LLC | Jim Simons | 0.07% | 580,600 | $50,065,138 | $34,249,594 | -$15,815,544 | -31.59% |
| Raymond James Financial Inc | 0.01% | 422,388 | $36,422,532 | $24,916,668 | -$11,505,864 | -31.59% | |
| Connor, Clark & Lunn Investment Management Ltd. | 0.07% | 413,254 | $35,634,892 | $24,377,853 | -$11,257,039 | -31.59% | |
| Susquehanna International Group, Llp | 0.03% | 374,271 | $32,273,388 | $22,078,246 | -$10,195,142 | -31.59% | |
| Lpl Financial Llc | 0.01% | 367,193 | $31,663,059 | $21,660,715 | -$10,002,344 | -31.59% | |
| Bandera Partners Llc | 11.00% | 693,519 | $31,229,161 | $40,910,686 | +$9,681,525 | +31.00% | |
| Massachusetts Financial Services Co | 0.01% | 361,075 | $31,135,497 | $21,299,814 | -$9,835,683 | -31.59% | |
| Sei Investments Co | 0.03% | 341,099 | $29,412,975 | $20,121,430 | -$9,291,545 | -31.59% | |
| Segall Bryant & Hamill, Llc | 0.34% | 327,997 | $28,283,139 | $19,348,543 | -$8,934,596 | -31.59% | |
| Envestnet Asset Management Inc | 0.01% | 323,566 | $27,901,109 | $19,087,158 | -$8,813,951 | -31.59% | |
| Worldquant Millennium Advisors Llc | 0.10% | 322,697 | $27,826,162 | $19,035,896 | -$8,790,266 | -31.59% | |
| Rhumbline Advisers | 0.02% | 315,669 | $27,220,086 | $18,621,314 | -$8,598,772 | -31.59% | |
| Panagora Asset Management Inc | 0.08% | 309,415 | $26,680,855 | $18,252,391 | -$8,428,464 | -31.59% | |
| Jane Street Group, Llc | 0.02% | 307,694 | $26,532,454 | $18,150,869 | -$8,381,585 | -31.59% |
Frequently asked questions about AMKR
Who owns the most AMKR stock?
The largest holders of AMKR are typically major institutional investors such as asset managers and hedge funds reporting on Form 13F. The table above ranks tracked superinvestors by reported position size using the latest available filings for AMKOR TECHNOLOGY INC (AMKR).
Is AMKR widely held by superinvestors?
Many widely followed stocks like AMKR appear across numerous superinvestor portfolios because of liquidity, index inclusion, and fundamentals. The holder count and table above show how broadly AMKR is represented among the institutional managers we track.
What do “Current Estimated Value”, “Gain/loss Since Filing”, and “Estimated Portfolio Performance” mean?
Current Estimated Value is reported share quantity from the latest 13F times our most recent split-adjusted U.S. session close. Gain/loss Since Filing is that estimate minus the reported 13F dollar value; Estimated Portfolio Performance is that difference as a percent of the reported value. Green means the estimate is above the filing value; red means below (not purchase cost). If many filers share the same implied filing price per share, the performance % may match across rows. These are not official fund marks or live quotes.