AMKR Institutional Ownership
Who owns Amkor Technology, Inc. and what the big funds did with it last quarter, from every SEC 13F filing. 651 funds reported holding AMKR at Jun 30, 2026, together owning 47.0% of the company.
- ▲382 buying vs 247 selling
- ▼Held by funds -2.0 pts
- ▲Funds holding +115
- ▼Superinvestors: 2 added, 3 cut
- ▼Put/call 0.64 to 1.03
What the filings show, not a forecast. Positions can be up to 45 days old and leave out short sales.
Funds holding and ownership
8 quartersQuarter over quarter
all 13F filers| Q2 2026 | This quarter | Q1 2026 | Change |
|---|---|---|---|
| Funds holding | 651 | 536 | +21.5% |
| In funds' top 10 | 5 | 6 | −16.7% |
| 13F shares | 116M | 121M | −4.0% |
| Held by funds | 47.0% | 49.0% | −2.0 pts |
| New positions | 166 | 131 | +26.7% |
| Increased | 216 | 190 | +13.7% |
| Reduced | 197 | 140 | +40.7% |
| Sold out | 50 | 57 | −12.3% |
| Calls (shares) | 439K | 448K | −2.1% |
| Puts (shares) | 453K | 288K | +57.2% |
| Put/call ratio | 1.03 | 0.64 | +60.4% |
Buyers vs sellers
adding or new vs cutting or sold outSuperinvestors in AMKR
All superinvestors →
Who owns AMKR
share of fund held shares- Index and passive funds44.3%
- Active managers and hedge funds37.9%
- Banks and brokers13.8%
- Pensions, insurers and other4.0%
The top 10 holders own 49.4% of all AMKR shares that funds reported. Groups are our own grouping of filers by name.
Put/call ratio
funds' options, market makers left outAbove 1 means funds hold more puts than calls, a sign of hedging or bets on a fall. Options are valued at the underlying shares.
Filed so far for Q3 2026
213 funds changed their position- Convergence Investment Partners, LLCSold out−123K sh
- Assenagon Asset Management S.A.Trimmed−157K sh
- Covea FinanceAdded+113K sh
- Ellsworth Advisors, LLCNew+110K sh
- Exchange Traded Concepts, LLCTrimmed−92K sh
🔒 Free account: see all 20.
Top holders
Q2 2026| # | Fund | Of company | Shares | Value | Change |
|---|---|---|---|---|---|
| 1 | BlackRock, Inc. | 4.96% | 12.3M | $1.1B | −676K |
| 2 | Vanguard Portfolio Management LLC | 3.92% | 9.7M | $838M | +617K |
| 3 | Dimensional Fund Advisors LP | 3.25% | 8.1M | $695M | −2.9M |
| 4 | Vanguard Capital Management LLC | 2.70% | 6.7M | $578M | +1.3M |
| 5 | Jpmorgan Chase & Co | 2.30% | 5.7M | $470M | +296K |
| 6 | State Street Corp | 1.51% | 3.7M | $322M | +102K |
| 7 | AQR Capital Management LLC | 1.30% | 3.2M | $274M | −11K |
| 8 | Earnest Partners LLC | 1.15% | 2.9M | $246M | −579K |
| 9 | Geode Capital Management, LLC | 1.13% | 2.8M | $241M | +68K |
| 10 | Invesco Ltd. | 1.00% | 2.5M | $214M | +596K |
- Clal Insurance Enterprises Holdings Ltd+1.8M sh+$152M
- Norges Bank+1.5M sh+$127M
- Vanguard Capital Management LLC+1.3M sh+$109M
- Tcw Group Inc+971K sh+$83.7M
- Price T Rowe Associates Inc /md/+913K sh+$78.7M
- Citadel Advisors LLC+832K sh+$71.8M
- Qube Research & Technologies Ltd+799K sh+$68.9M
- Bank of Nova Scotia+676K sh+$58.3M
- Dimensional Fund Advisors LP−2.9M sh−$252M
- Jane Street Group, LLC−2M sh−$174M
- American Century Companies Inc−1.7M sh−$143M
- Bridgewater Associates, LP−1.6M sh−$136M
- D. E. Shaw & Co., Inc.−864K sh−$74.5M
- Voloridge Investment Management, LLC−819K sh−$70.6M
- Trexquant Investment LP−797K sh−$68.7M
- Squarepoint Ops LLC−757K sh−$65.3M
AMKR institutional ownership FAQ
Who owns the most AMKR stock?
In Q2 2026 13F filings the largest holder of AMKR was BlackRock, Inc., followed by Vanguard Portfolio Management LLC and Dimensional Fund Advisors LP. Index fund managers are usually the biggest holders of large companies.
What percentage of AMKR is owned by institutions?
Funds that file 13F reports held 47.0% of AMKR's shares at Jun 30, 2026, compared with 49.0% a quarter earlier. That counts every manager with more than $100 million in US stocks.
Are hedge funds buying AMKR?
In Q2 2026, 382 funds bought AMKR (166 of them new positions) and 247 sold (50 sold out completely). Among well known investors, 2 added and 3 cut. Our fund sentiment for AMKR is neutral.
What is AMKR's institutional put/call ratio?
Funds reported $39M of AMKR puts against $37.8M of calls, a put/call ratio of 1.03 (0.64 the quarter before). Market makers and bank trading desks are left out, since their options are mostly hedges.
How current is this AMKR ownership data?
13F filings show holdings at the end of each quarter and are due within 45 days, so positions can be up to six weeks old when they appear. We add each new filing within minutes, and the "filed so far" list shows funds that have already reported the next quarter.
For informational and educational purposes only. Not investment advice, and not a recommendation to buy or sell any security. Fund sentiment summarises what 13F filings show and is not a forecast. Holdings come from SEC Form 13F filings as reported and show positions at the end of the quarter, up to 45 days before the filing. A 13F leaves out short positions, cash, bonds and most foreign holdings. See all hedge fund holdings.