Position in AMKR
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$11,311,536
+$4,442,016 QoQ
Shares Held
251,200
+44.4% QoQ
Ownership
0.101%
of shares outstanding
% of Portfolio
0.51%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Dec 2025
2 quarters on record
Voting authority
Sole 100.ToString("F0")%
Shared 0.ToString("F0")%
None 0.ToString("F0")%
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 Mar 31, 2026CastleKnight Management LP holds $16,932,802 across 6 Semiconductor Equipment & Materials names. AMKR ranks #1 (66.8% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | AMKR |
Amkor Technology, Inc.
This page
|
251,200 | $11,311,536 | |
| 2 | ASML |
Asml Holding NV
|
1,540 | $2,034,078 | |
| 3 | AMAT |
Applied Materials Inc /De
|
4,900 | $1,674,771 | |
| 4 | UCTT |
Ultra Clean Holdings, Inc.
|
16,200 | $1,007,316 | |
| 5 | ICHR |
Ichor Holdings, Ltd.
|
10,514 | $490,057 | |
| 6 | TER |
Teradyne, Inc
|
1,400 | $415,044 |
All Filings in AMKR
Export CSV
3 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 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. | ||||||