Position in GPK
as of Mar 31, 2026
· filed May 15, 2026
Position Value
$2,104,298
+$1,330,214 QoQ
Shares Held
211,700
+311.9% QoQ
Ownership
0.072%
of shares outstanding
% of Portfolio
0.10%
of 13F equity value
Holder Rank
—
not a current holder
Holding Since
Jun 2025
4 quarters on record
Voting authority
Sole 100%
Shared 0%
None 0%
Common Shares in GPK Over Time
Shares Held
Position Value (USD)
Derivatives in GPK
reported options exposure · as of Sep 30, 2025CallValue
$1,174,200
CallShares
60,000
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 Packaging & Containers
Consumer Cyclical · as of Mar 31, 2026CastleKnight Management LP holds $11,928,370 across 6 Packaging & Containers names. GPK ranks #4 (17.6% of the industry book) .
| # | Ticker | Company | Shares | Value (USD) | Open |
|---|---|---|---|---|---|
| 1 | SON |
Sonoco Products Co
|
58,700 | $3,175,083 | |
| 2 | PACK |
Ranpak Holdings Corp.
|
801,000 | $2,859,570 | |
| 3 | SLGN |
Silgan Holdings Inc
|
54,400 | $2,110,720 | |
| 4 | GPK |
Graphic Packaging Holding Co
This page
|
211,700 | $2,104,298 | |
| 5 | OI |
O-I Glass, Inc. /DE/
|
79,900 | $839,749 | |
| 6 | IP |
International Paper Co /New/
|
23,500 | $838,950 |
All Filings in GPK
Export CSV
5 filing rows on record
| Report Date | Value (USD) | Shares | Type | Discretion | Filed | |
|---|---|---|---|---|---|---|
| 2026-03-31 | $2,104,298 | 211,700 | Shares | Sole | 2026-05-15 | |
| 2025-12-31 | $774,084 | 51,400 | Shares | Sole | 2026-02-17 | |
| 2025-09-30 | $2,714,359 | 138,700 | Shares | Sole | 2025-11-14 | |
| 2025-09-30 | $1,174,200 | 60,000 | Call | Sole | 2025-11-14 | |
| 2025-06-30 | $2,007,971 | 95,300 | Shares | Sole | 2025-08-14 | |
| No filing history on record for this holder in this stock. | ||||||