Position in AMKR
as of Jun 30, 2026
· filed Aug 12, 2026
Position Value
$1,138,408
+$331,606 QoQ
Shares Held
13,202
-26.3% QoQ
Ownership
0.005%
of shares outstanding
% of Portfolio
0.20%
of 13F equity value
Holder Rank
#288
of 642 holders
Holding Since
Mar 2021
16 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in AMKR Over Time
Shares Held
Position Value (USD)
Derivatives in AMKR
reported options exposure · as of Jun 30, 2026CallValue
$0
CallShares
0
PutValue
$888,169
PutShares
10,300
Notional value of option positions as reported on Form 13F. Calls and puts are disclosed separately and do not net against the common-share stake above.
Position in Semiconductor Equipment & Materials
Technology · as of Jun 30, 2026Twin Tree Management, LP holds $26,006,335 across 12 Semiconductor Equipment & Materials names. AMKR ranks #5 (4.4% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | ASML |
Asml Holding NV
|
4,373 | $8,699,820 | |
| 2 | AMAT |
Applied Materials Inc /De
|
11,241 | $8,127,243 | |
| 3 | LRCX |
Lam Research Corp
|
6,671 | $2,890,744 | |
| 4 | FORM |
Formfactor Inc
|
9,718 | $1,554,199 | |
| 5 | AMKR |
Amkor Technology, Inc.
This page
|
13,202 | $1,138,408 | |
| 6 | TER |
Teradyne, Inc
|
2,134 | $1,032,514 | |
| 7 | ACLS |
Axcelis Technologies Inc
|
4,209 | $797,395 | |
| 8 | ENTG |
Entegris Inc
|
3,989 | $717,461 |
All Filings in AMKR
Export CSV
27 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $888,169 | 10,300 | Put | Sole | 2026-08-12 | |
| 2026-06-30 | $1,138,408 | 13,202 | Shares | Sole | 2026-08-12 | |
| 2026-03-31 | $2,877,417 | 63,900 | Put | Sole | 2026-05-14 | |
| 2026-03-31 | $806,802 | 17,917 | Shares | Sole | 2026-05-14 | |
| 2025-12-31 | $4,633,412 | 117,361 | Shares | Sole | 2026-02-11 | |
| 2025-12-31 | $2,826,768 | 71,600 | Call | Sole | 2026-02-11 | |
| 2025-12-31 | $4,196,724 | 106,300 | Put | Sole | 2026-02-11 | |
| 2025-09-30 | $2,353,962 | 82,886 | Shares | Sole | 2025-11-13 | |
| 2025-09-30 | $443,040 | 15,600 | Put | Sole | 2025-11-13 | |
| 2025-06-30 | $1,682,978 | 80,180 | Shares | Sole | 2025-07-28 | |
| 2025-03-31 | $780,390 | 43,211 | Shares | Sole | 2025-05-15 | |
| 2024-12-31 | $147,820 | 5,754 | Shares | Sole | 2025-02-10 | |
| 2024-12-31 | $1,872,801 | 72,900 | Put | Sole | 2025-02-10 | |
| 2024-09-30 | $5,801,760 | 189,600 | Put | Sole | 2024-11-13 | |
| 2024-09-30 | $1,914,152 | 62,554 | Shares | Sole | 2024-11-13 | |
| 2024-09-30 | $39,780 | 1,300 | Call | Sole | 2024-11-13 | |
| 2024-06-30 | $1,784,892 | 44,600 | Call | Sole | 2024-08-13 | |
| 2024-06-30 | $5,934,966 | 148,300 | Put | Sole | 2024-08-13 | |
| 2024-03-31 | $1,437,904 | 44,600 | Call | Sole | 2024-05-09 | |
| 2024-03-31 | $634,805 | 19,690 | Shares | Sole | 2024-05-09 | |
| 2024-03-31 | $3,739,840 | 116,000 | Put | Sole | 2024-05-09 | |
| 2023-12-31 | $6,720 | 202 | Shares | Sole | 2024-02-14 | |
| 2023-06-30 | $486,144 | 16,341 | Shares | Sole | 2023-08-11 | |
| 2023-03-31 | $114,930 | 4,417 | Shares | Sole | 2023-05-10 | |
| 2021-12-31 | $69,486 | 2,803 | Shares | Sole | 2022-02-10 | |
| 2021-09-30 | $1,234,201 | 49,467 | Shares | Sole | 2021-11-12 | |
| 2021-03-31 | $17,189 | 725 | Shares | Sole | 2021-05-17 | |
| No filing history on record for this holder in this stock. | ||||||