Castalian Partners, LLC

In its 13F for Q2 2025 (holdings as of June 30, 2025, filed August 12, 2025), Castalian Partners, LLC reported 1 stock position worth $7.4 million. Its top holding was Natural Resource Partners (NRP) at 100.0% of the portfolio. Compared with Q1 2025, it sold out of 3 and reduced 1. The biggest sale was an exit from Amentum (AMTM).

Most Recent 13F
Q2 2025
Location
EXCELSIOR, MN
CIK
0001976319
Portfolio Value
$7.4M (Q2 2025)
SEC Filing
0001754960-25-000575 ↗ filed Aug 12, 2025

Holdings Value

0$50.0M$100.0M$150.0M Q4 2024: $105.8M Q4 2024 Q1 2025: $22.8M Q1 2025 Q2 2025: $7.4M $7.4M Q2 2025

Holdings 1 stocks · $7.4M

NRP Natural Resource Partners LP 100.00% 77,081 $7.4M Reduce -49.6%

Portfolio Sells Q1 2025 → Q2 2025

AMTM Amentum Holdings Inc. Sold out 0.00% −24.34
SAIC Science Applications Inte Sold out 0.00% −3.50
NATL NCR Atleos Corp. Sold out 0.00% −2.32
NRP Natural Resource Partners LP Reduce -49.6% 100.00% +30.15

Portfolio Buys Q1 2025 → Q2 2025

None this quarter.

Options Activity Q1 2025 → Q2 2025

OEF iShares S&P 100 ETF call Sold out 1,500,000 $299.2Mbefore exit
NRP Natural Resource Partners LP put Sold out 98,900 $10.3Mbefore exit
GTLS Chart Industries Inc. call Sold out 70,000 $10.1Mbefore exit
SHOO Steven Madden Ltd. call Sold out 257,700 $6.9Mbefore exit
NRP Natural Resource Partners LP call Sold out 13,500 $1.4Mbefore exit

Calls and puts are listed by the shares they cover; their value is not part of the stock holdings above.

All Filings

QuarterPositions13F Reported ValueTop Holdings
Q2 2025 1$7.4MNRP
Q1 2025 4$22.8MNRP, AMTM, SAIC, NATL
Q4 2024 21$105.8MAMTM, NRP, TLN, NLOP, BVFL