Position in AMKR
as of Jun 30, 2026
· filed Aug 14, 2026
Position Value
$379,412
-$10,932,124 QoQ
Shares Held
4,400
-98.2% QoQ
Ownership
0.002%
of shares outstanding
% of Portfolio
0.01%
of 13F equity value
Holder Rank
#410
of 643 holders
Holding Since
Dec 2025
3 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 Mar 31, 2026CallValue
$1,350,900
CallShares
30,000
PutValue
$0
PutShares
0
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, 2026CastleKnight Management LP holds $10,399,970 across 7 Semiconductor Equipment & Materials names. AMKR ranks #7 (3.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | PLAB |
Photronics Inc
|
117,300 | $3,815,769 | |
| 2 | UCTT |
Ultra Clean Holdings, Inc.
|
18,700 | $2,666,433 | |
| 3 | ASML |
Asml Holding NV
|
840 | $1,671,129 | |
| 4 | AMAT |
Applied Materials Inc /De
|
1,100 | $795,300 | |
| 5 | TER |
Teradyne, Inc
|
1,400 | $677,376 | |
| 6 | ICHR |
Ichor Holdings, Ltd.
|
3,514 | $394,551 | |
| 7 | AMKR |
Amkor Technology, Inc.
This page
|
4,400 | $379,412 |
All Filings in AMKR
Export CSV
4 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-06-30 | $379,412 | 4,400 | Shares | Sole | 2026-08-14 | |
| 2026-03-31 | $11,311,536 | 251,200 | Shares | Sole | 2026-05-15 | |
| 2026-03-31 | $1,350,900 | 30,000 | Call | Sole | 2026-05-15 | |
| 2025-12-31 | $6,869,520 | 174,000 | Shares | Sole | 2026-02-17 | |
| No filing history on record for this holder in this stock. | ||||||