Ranked by reported Q2 2026 13F market value
Share of total reported institutional value in AMKR held by the largest 10 / 25 filers.
| # | Institution | Shares Held | Market Value | QoQ Change | Ownership % | % of Fund |
|---|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 12.3M | $1.06B | -5.2% | 4.948% | 0.02% |
| 2 | VANGUARD PORTFOLIO MANAGEMENT LLC | 9.7M | $837.5M | +6.8% | 3.909% | 0.04% |
| 3 | DIMENSIONAL FUND ADVISORS LP | 8.1M | $695.3M | -26.6% | 3.246% | 0.13% |
| 4 | VANGUARD CAPITAL MANAGEMENT LLC | 6.7M | $577.8M | +23.3% | 2.697% | 0.01% |
| 5 | JPMORGAN CHASE & CO | 5.7M | $470.0M | +5.5% | 2.295% | 0.03% |
| 6 | STATE STREET CORP | 3.7M | $321.7M | +2.8% | 1.502% | 0.00% |
| 7 | JANE STREET GROUP, LLC | 3.2M | $276.1M | +0.0% | 1.289% | 0.02% |
| 8 | AQR CAPITAL MANAGEMENT LLC | 3.2M | $273.8M | -0.3% | 1.301% | 0.10% |
| 9 | EARNEST PARTNERS LLC | 2.9M | $246.0M | -16.9% | 1.148% | 0.89% |
| 10 | GEODE CAPITAL MANAGEMENT, LLC | 2.8M | $241.3M | +2.5% | 1.126% | 0.01% |
| 11 | Point72 Asset Management, L.P. | 2.6M | $221.2M | -18.2% | 1.033% | 0.24% |
| 12 | Invesco Ltd. | 2.5M | $214.4M | +31.6% | 1.000% | 0.02% |
| 13 | CITADEL ADVISORS LLC | 2.0M | $175.2M | +130.7% | 0.818% | 0.01% |
| 14 | PRINCIPAL FINANCIAL GROUP INC | 2.0M | $169.8M | -24.9% | 0.793% | 0.08% |
| 15 | FIRST TRUST ADVISORS LP | 1.8M | $158.3M | +2.4% | 0.739% | 0.09% |
| 16 | CHARLES SCHWAB INVESTMENT MANAGEMENT INC | 1.8M | $158.0M | -12.8% | 0.738% | 0.02% |
| 17 | Fisher Asset Management, LLC | 1.8M | $157.1M | -9.4% | 0.733% | 0.05% |
| 18 | MORGAN STANLEY | 1.5M | $131.6M | +11.1% | 0.614% | 0.01% |
| 19 | NORGES BANK | 1.5M | $127.4M | — | 0.595% | 0.01% |
| 20 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | 1.4M | $121.1M | -14.2% | 0.565% | 0.01% |
| 21 | Qube Research & Technologies Ltd | 1.2M | $100.2M | +220.7% | 0.468% | 0.09% |
| 22 | TWO SIGMA INVESTMENTS, LP | 1.1M | $94.4M | -11.8% | 0.441% | 0.07% |
| 23 | Allianz Asset Management GmbH | 1.1M | $93.7M | -21.5% | 0.437% | 0.04% |
| 24 | AMERICAN CENTURY COMPANIES INC | 1.1M | $91.0M | -61.1% | 0.425% | 0.04% |
| 25 | Bank of New York Mellon Corp | 1.1M | $90.7M | +6.8% | 0.423% | 0.01% |
denotes a marquee investor (Buffett, Burry, ARK, Tiger Global, Pershing Square, Baupost and other widely-followed managers). “% of Fund” shows how much of that investor’s total 13F portfolio is invested in AMKR — a direct measure of their conviction.
Filings activity in AMKR during Q2 2026, grouped by how each filer changed its position.
8 quarters of 13F filings · Δ columns show change vs prior quarter
| Quarter | Inst. Holders | Δ Holders | Ownership % | Δ Ownership | Total 13F Value | Δ Value |
|---|---|---|---|---|---|---|
| Q2 2026 | 654 | +24% | 49.20% | 1.54 pp | $9.92B | +83% |
| Q1 2026 | 527 | +17% | 50.74% | +2.28 pp | $5.41B | +19% |
| Q4 2025 | 452 | +21% | 48.46% | +4.22 pp | $4.54B | +52% |
| Q3 2025 | 375 | +11% | 44.24% | 4.11 pp | $2.98B | +26% |
| Q2 2025 | 338 | +0.3% | 48.35% | +3.32 pp | $2.37B | +27% |
| Q1 2025 | 337 | +3.4% | 45.03% | 0.67 pp | $1.87B | 31% |
| Q4 2024 | 326 | 5.5% | 45.70% | +3.14 pp | $2.72B | 9.2% |
| Q3 2024 | 345 | — | 42.56% | — | $2.99B | — |
Source: SEC 13F institutional filings. Ownership % requires market cap data and will show once linked. Δ columns compare to the immediately prior filed quarter.
Quick answers to the most common questions about buying AMKR stock.
Based on Q2 2026 13F filings, institutional ownership of Amkor Technology, Inc. stands at 49.2%, held across 654 reporting institutions.
BlackRock, Inc. is the largest reported institutional holder of AMKR, with approximately 12,292,760 shares worth $1.06B as of Q2 2026.
Yes — 6 widely-followed marquee investors appear among the top 25 institutional holders of AMKR, including JANE STREET GROUP, LLC, Point72 Asset Management, L.P., CITADEL ADVISORS LLC, Fisher Asset Management, LLC, SUSQUEHANNA INTERNATIONAL GROUP, LLP.
Our composite Smart Money Score for AMKR is 73 out of 100 (Bullish). It combines net institutional buying activity, ownership shift, marquee investor presence, and holder-count growth.
161 institutions opened new positions in AMKR during Q2 2026, while 47 fully exited. 409 added to existing positions and 56 trimmed.
AMKR institutional ownership fell by 1.54 percentage points quarter-over-quarter, with a net change of +127 holders.
The top 10 institutions account for 50.4% of all reported 13F value in AMKR, and the top 25 account for 71.6%.
All data is sourced from SEC Form 13F filings, which institutional investment managers with at least $100M in assets are required to file each quarter. We process every 13F filing from EDGAR and recompute the aggregates after each cycle. Insider transactions are sourced from Form 4 filings.
Amkor Technology, Inc. (AMKR) Institutional Ownership