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Hallstatt Advisors L.P.

13F filer · CIK 0002040638
Reported Aug 4, 2026
Net seller this quarter
13F portfolio value$142MU.S. long equity reported on 13F
Positions122 new · 4 closed
Net flow last quarter-$11MBuys minus sells
Top 10 positions weight90.1%Concentration

Holdings

13F · last 4 quarters free
Scroll for earlier quarters
CompanyValue% of portfolio% of companyPOSITION CHANGE qoq %First reported
Q2 2026Reported Aug 4, 202612 positions
GVAGranite Construction Inc$20.9M14.76%0.30%Not reportedQ4 2025
CWSTCasella Waste Systems Inc$18.4M12.95%Not reported+14.6%Q4 2025
TELTE Connectivity plc$13.4M9.46%0.02%+25.8%Q4 2025
VSTVistra Corp.$12.9M9.10%0.02%+17.9%Q1 2026
CTRICenturi Holdings, Inc.$12.1M8.56%0.40%+40.6%Q4 2025
CLHClean Harbors Inc$11.9M8.40%0.08%-13.4%Q4 2025
SEISolaris Energy Infrastructure, Inc.$11.8M8.33%Not reported+22.2%Q1 2026
APHAmphenol Corp$11.5M8.07%0.01%NewQ2 2026
GFLGFL Environmental Inc.$9.79M6.90%Not reported-16.6%Q4 2025
EXPEagle Materials Inc$5.05M3.56%0.07%-39.8%Q4 2025
MTArcelorMittal$3.85M2.71%0.01%-8.0%Q4 2025
ATSATS Corp$2.39M1.68%0.08%NewQ2 2026
Q1 2026Reported May 7, 202614 positions
GVAGranite Construction Inc$15.9M12.56%0.30%-6.0%Q4 2025
GFLGFL Environmental Inc.$13.3M10.54%Not reported+65.0%Q4 2025
CLHClean Harbors Inc$13.2M10.46%0.09%-29.2%Q4 2025
CWSTCasella Waste Systems Inc$13.1M10.38%Not reported+14.0%Q4 2025
TELTE Connectivity plc$11.1M8.75%0.02%+45.2%Q4 2025
VSTVistra Corp.$10.4M8.22%0.02%NewQ1 2026
CTRICenturi Holdings, Inc.$8.35M6.60%0.28%-17.1%Q4 2025
EXPEagle Materials Inc$7.07M5.59%0.12%+2.9%Q4 2025
BDCBelden Inc.$7.07M5.59%0.16%NewQ1 2026
MRVLMarvell Technology, Inc.$6.92M5.47%0.01%-28.0%Q4 2025
SEISolaris Energy Infrastructure, Inc.$6.79M5.37%Not reportedNewQ1 2026
MTArcelorMittal$3.61M2.86%0.01%-62.9%Q4 2025
AERAerCap Holdings N.V.$1.38M1.09%0.01%-89.2%Q4 2025
SMERYSiemens Energy AG$359K0.28%Not reportedNewQ1 2026
Q4 2025Reported Feb 10, 202615 positions
GVAGranite Construction Inc$16.3M12.12%0.32%NewQ4 2025
CLHClean Harbors Inc$15.3M11.37%0.12%NewQ4 2025
CWSTCasella Waste Systems Inc$14.2M10.59%Not reportedNewQ4 2025
AERAerCap Holdings N.V.$13.4M9.99%0.06%NewQ4 2025
CTRICenturi Holdings, Inc.$8.7M6.48%0.34%NewQ4 2025
MTArcelorMittal$8.54M6.36%0.02%NewQ4 2025
GFLGFL Environmental Inc.$8.31M6.19%Not reportedNewQ4 2025
TELTE Connectivity plc$8.29M6.18%0.01%NewQ4 2025
IEXIdex Corp$8.26M6.15%0.06%NewQ4 2025
MRVLMarvell Technology, Inc.$8.25M6.14%0.01%NewQ4 2025
EXPEagle Materials Inc$7.5M5.59%0.12%NewQ4 2025
HUBGHub Group, Inc.$5.7M4.25%0.18%NewQ4 2025
EMREmerson Electric Co$5.57M4.15%0.01%NewQ4 2025
FSLRFirst Solar, Inc.$2.77M2.06%0.01%NewQ4 2025
OCOwens Corning$2.6M1.93%0.03%NewQ4 2025
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