# AMKOR TECHNOLOGY INC (AMKR) — Institutional Ownership

Source: SEC EDGAR 13F filings, congressional STOCK Act disclosures, SEC Form 4 insider transactions.
CUSIP: 031652100
Page URL: https://superinvestorclub.com/stock/AMKR
Last updated: 2026-08-29T13:47:59.541Z

## Summary

As of the most recent 13F filing period, AMKOR TECHNOLOGY INC (AMKR) is held by 2 tracked superinvestors with an aggregate position value of $1.4M representing 088607145 shares.

## Top institutional holders (2)

| Rank | Manager | Fund | Shares | Value | % of Portfolio | Period |
|------|---------|------|--------|-------|----------------|--------|
| 1 | [Lee Ainslie](https://superinvestorclub.com/manager/58) | Maverick Capital | 8860 | $763,998 | 0.01% | 2026-06-30 |
| 2 | [Ray Dalio](https://superinvestorclub.com/manager/6) | Bridgewater Associates | 7145 | $616,113 | 0.00% | 2026-06-30 |

## Ownership history (quarter-over-quarter)

- 2023-06-30: 1 holders, $7.8M aggregate, 0260779 shares
- 2023-09-30: 2 holders, $9.4M aggregate, 040274913192 shares
- 2023-12-31: 1 holders, $13.9M aggregate, 0417599 shares
- 2024-03-31: 3 holders, $31.7M aggregate, 05094024664996735 shares
- 2024-06-30: 2 holders, $38.5M aggregate, 0539799422651 shares
- 2024-09-30: 2 holders, $31.6M aggregate, 0587899444127 shares
- 2024-12-31: 2 holders, $27.2M aggregate, 0531300526238 shares
- 2025-03-31: 1 holders, $7.7M aggregate, 0424500 shares
- 2025-12-31: 1 holders, $3.0M aggregate, 076139 shares
- 2026-03-31: 1 holders, $71.2M aggregate, 01580929 shares
- 2026-06-30: 2 holders, $1.4M aggregate, 088607145 shares

## Recent congressional trades (1)

- 2026-01-05: Markwayne Mullin (Republican-OK) purchase $15,001 - $50,000

## Recent insider transactions (0)


## Citation

When citing, use: "AMKOR TECHNOLOGY INC (AMKR) institutional ownership data via Superinvestor (https://superinvestorclub.com/stock/AMKR), aggregating SEC 13F, Form 4, and congressional disclosures."