ARROWSTREET CAPITAL, LIMITED PARTNERSHIP
Position in AMKR — Amkor Technology, Inc.
CIK 1164508
BOSTON, MA
Position in AMKR
as of Mar 31, 2026
· filed May 14, 2026
Position Value
$264,686
-$31,091,514 QoQ
Shares Held
5,878
-99.3% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.00%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Mar 2020
23 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMKR Over Time
Shares Held
Position Value (USD)
Position in Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026ARROWSTREET CAPITAL, LIMITED PARTNERSHIP holds $10,178,355,564 across 16 Semiconductor Equipment & Materials names.
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | LRCX |
Lam Research Corp
|
12,269,198 | $5,316,611,569 | |
| 2 | ASML |
Asml Holding NV
|
1,463,906 | $2,912,353,006 | |
| 3 | KLAC |
Kla Corp
|
4,712,396 | $1,421,776,997 | |
| 4 | NVMI |
Nova Ltd.
|
423,058 | $229,695,110 | |
| 5 | Q |
Qnity Electronics, Inc.
|
906,422 | $148,027,776 | |
| 6 | FORM |
Formfactor Inc
|
376,376 | $60,193,813 | |
| 7 | TER |
Teradyne, Inc
|
48,692 | $23,559,137 | |
| 8 | VECO |
Veeco Instruments Inc
|
236,657 | $17,938,600 |
All Filings in AMKR
Export CSV
23 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $264,686 | 5,878 | Shares | Defined | 2026-05-14 | |
| 2025-12-31 | $31,356,200 | 794,230 | Shares | Defined | 2026-02-13 | |
| 2025-09-30 | $44,718,838 | 1,574,607 | Shares | Defined | 2025-11-13 | |
| 2025-06-30 | $8,150,291 | 388,294 | Shares | Defined | 2025-08-13 | |
| 2025-03-31 | $5,750,358 | 318,403 | Shares | Defined | 2025-05-14 | |
| 2024-12-31 | $360,327 | 14,026 | Shares | Defined | 2025-02-12 | |
| 2024-09-30 | $21,651,183 | 707,555 | Shares | Defined | 2024-11-14 | |
| 2024-06-30 | $59,778,754 | 1,493,722 | Shares | Defined | 2024-08-14 | |
| 2024-03-31 | $26,183,780 | 812,152 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $2,380,967 | 71,565 | Shares | Defined | 2024-02-14 | |
| 2023-06-30 | $31,804,654 | 1,069,064 | Shares | Defined | 2023-08-14 | |
| 2023-03-31 | $48,747,689 | 1,873,470 | Shares | Defined | 2023-05-15 | |
| 2022-12-31 | $24,249,031 | 1,011,219 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $2,985,625 | 175,110 | Shares | Defined | 2022-11-14 | |
| 2022-06-30 | $227,926 | 13,447 | Shares | Defined | 2022-08-15 | |
| 2021-12-31 | $8,878,835 | 358,162 | Shares | Defined | 2022-02-14 | |
| 2021-09-30 | $25,448,101 | 1,019,964 | Shares | Defined | 2021-11-12 | |
| 2021-06-30 | $23,447,170 | 990,586 | Shares | Defined | 2021-08-13 | |
| 2021-03-31 | $42,093,406 | 1,775,344 | Shares | Defined | 2021-05-14 | |
| 2020-12-31 | $36,402,923 | 2,413,987 | Shares | Defined | 2021-02-12 | |
| 2020-09-30 | $22,926,254 | 2,046,987 | Shares | Defined | 2020-11-12 | |
| 2020-06-30 | $25,827,450 | 2,098,087 | Shares | Defined | 2020-08-12 | |
| 2020-03-31 | $16,344,097 | 2,098,087 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||