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 |
|---|---|---|---|---|---|
| Illinois Municipal Retirement Fund | 0 | $0 | 0.00% | −17,597−100.0% | Sold out |
| Walleye Capital LLC | 0 | $0 | 0.00% | −15,194−100.0% | Sold out |
| Truist Financial Corp | 0 | $0 | 0.00% | −13,057−100.0% | Sold out |
| Numerai GP LLC | 0 | $0 | 0.00% | −12,475−100.0% | Sold out |
| Sumitomo Mitsui Trust Holdings, Inc. | 0 | $0 | 0.00% | −12,192−100.0% | Sold out |
| Guidance Capital, Inc | 0 | $0 | 0.00% | −9,911−100.0% | Sold out |
| QRG Capital Management, Inc. | 0 | $0 | 0.00% | −9,648−100.0% | Sold out |
| OP Asset Management Ltd | 0 | $0 | 0.00% | −9,492−100.0% | Sold out |
| Vestcor Inc | 0 | $0 | 0.00% | −7,312−100.0% | Sold out |
| Walleye Trading LLC | 0 | $0 | 0.00% | −6,240−100.0% | Sold out |
| Point72 (DIFC) Ltd | 0 | $0 | 0.00% | −6,001−100.0% | Sold out |
| Glenmede Investment Management, LP | 0 | $0 | 0.00% | −4,261−100.0% | Sold out |
| Clear Street Markets LLC | 0 | $0 | 0.00% | −3,405−100.0% | Sold out |
| Skopos Labs, Inc. | 0 | $0 | 0.00% | −3,033−100.0% | Sold out |
| Fuller & Thaler Asset Management, Inc. | 0 | $0 | 0.00% | −371−100.0% | Sold out |
| Bryn Mawr Trust Co | 0 | $0 | 0.00% | −312−100.0% | Sold out |
| Quarry LP | 0 | $0 | 0.00% | −214−100.0% | Sold out |
| NewSquare Capital LLC | 0 | $0 | 0.00% | −213−100.0% | Sold out |
| ORG Partners LLC | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Bokf, NA | 0 | $0 | 0.00% | −72−100.0% | Sold out |
| CarsonAllaria Wealth Management, Ltd. | 0 | $0 | 0.00% | −33−100.0% | Sold out |
| Garde Capital, Inc. | 0 | $0 | 0.00% | −10−100.0% | Sold out |
| Norges Bank | – | – | – | – | Not filed |
| Atlas Capital Advisors LLC | – | – | – | – | Not filed |
| Parkworth Wealth Management, Inc. | – | – | – | – | Not filed |