Position in AMKR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$9,197,291
-$4,350,885 QoQ
Shares Held
106,660
-64.5% QoQ
Ownership
0.043%
of shares outstanding
% of Portfolio
0.05%
of 13F equity value
Holder Rank
#112
of 642 holders
Holding Since
Mar 2020
17 quarters on record
Voting authority
Sole 50%
Shared 50%
None 0%
Common Shares in AMKR Over Time
Shares Held
Position Value (USD)
Derivatives in AMKR
reported options exposure · as of Jun 30, 2026CallValue
$284,559
CallShares
3,300
PutValue
$7,320,927
PutShares
84,900
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, 2026TUDOR INVESTMENT CORP ET AL holds $147,399,385 across 15 Semiconductor Equipment & Materials names. AMKR ranks #6 (6.2% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | FORM |
Formfactor Inc
|
251,905 | $40,287,166 | |
| 2 | AEHR |
Aehr Test Systems
|
204,550 | $19,649,073 | |
| 3 | LRCX |
Lam Research Corp
|
44,412 | $19,245,051 | |
| 4 | Q |
Qnity Electronics, Inc.
|
99,253 | $16,209,007 | |
| 5 | ONTO |
Onto Innovation Inc.
|
24,510 | $9,275,809 | |
| 6 | AMKR |
Amkor Technology, Inc.
This page
|
106,660 | $9,197,291 | |
| 7 | KLAC |
Kla Corp
|
28,806 | $8,691,058 | |
| 8 | UCTT |
Ultra Clean Holdings, Inc.
|
44,249 | $6,309,464 |
All Filings in AMKR
Export CSV
23 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $7,320,927 | 84,900 | Put | Defined | 2026-08-14 | |
| 2026-06-30 | $284,559 | 3,300 | Call | Defined | 2026-08-14 | |
| 2026-06-30 | $9,197,291 | 106,660 | Shares | Defined | 2026-08-14 | |
| 2026-03-31 | $923,115 | 20,500 | Call | Defined | 2026-05-15 | |
| 2026-03-31 | $661,941 | 14,700 | Put | Defined | 2026-05-15 | |
| 2026-03-31 | $13,548,176 | 300,870 | Shares | Defined | 2026-05-15 | |
| 2025-12-31 | $268,464 | 6,800 | Call | Defined | 2026-02-17 | |
| 2025-09-30 | $201,640 | 7,100 | Call | Defined | 2025-12-09 | |
| 2025-06-30 | $205,702 | 9,800 | Put | Defined | 2025-08-14 | |
| 2025-06-30 | $335,840 | 16,000 | Call | Defined | 2025-08-14 | |
| 2025-03-31 | $260,064 | 14,400 | Call | Defined | 2025-05-15 | |
| 2024-03-31 | $5,003,809 | 155,205 | Shares | Defined | 2024-05-15 | |
| 2023-12-31 | $6,759,732 | 203,178 | Shares | Defined | 2024-02-14 | |
| 2023-09-30 | $3,709,225 | 164,125 | Shares | Defined | 2023-11-15 | |
| 2023-06-30 | $232,050 | 7,800 | Put | Defined | 2023-08-14 | |
| 2022-12-31 | $342,650 | 14,289 | Shares | Defined | 2023-02-14 | |
| 2022-09-30 | $288,145 | 16,900 | Call | Defined | 2022-11-14 | |
| 2022-06-30 | $251,758 | 14,853 | Shares | Defined | 2022-08-15 | |
| 2021-09-30 | $1,957,377 | 78,452 | Shares | Defined | 2021-11-17 | |
| 2021-09-30 | $284,430 | 11,400 | Put | Defined | 2021-11-17 | |
| 2020-09-30 | $461,764 | 41,229 | Shares | Defined | 2020-11-16 | |
| 2020-06-30 | $324,023 | 26,322 | Shares | Defined | 2020-08-14 | |
| 2020-03-31 | $149,817 | 19,232 | Shares | Defined | 2020-05-15 | |
| No filing history on record for this holder in this stock. | ||||||