Fund Holdings — ACK Asset Management LLC

Total Portfolio Value:
$796.76M
Total Bought:
$167.37M
Total Sold:
$165.51M
Net Transaction:
+$1.86M
Securities
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SharesValue
Q3 2025
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Q4 2025
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Change
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Q3 2025
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Q4 2025
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Weight (%)
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Change
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Materion Corporation(MTRN)524,800474,800-50,000$63.40M$59.03M7.41%-$4.37M
Granite Construction Incorporated(GVA)545,000500,000-45,000$59.76M$57.67M7.24%-$2.08M
Advanced Drainage Systems, Inc.(WMS)390,000390,0000$54.09M$56.48M7.09%+$2.39M
ATS Corporation(ATS)1,846,1961,846,1960$48.37M$50.84M6.38%+$2.47M
Core & Main, Inc.(CNM)900,000900,0000$48.45M$46.77M5.87%-$1.67M
EnerSys(ENS)584,324304,324-280,000$66.01M$44.66M5.61%-$21.35M
Novanta Inc.(NOVT)0375,000+375,000$0$44.62M5.60%+$44.62M
Jhx
ORD SHS
2,100,0002,100,0000$40.34M$43.58M5.47%+$3.23M
Helios Technologies, Inc.(HLIO)770,000780,378+10,378$40.14M$41.74M5.24%+$1.60M
SiteOne Landscape Supply, Inc.(SITE)280,000330,000+50,000$36.06M$41.10M5.16%+$5.04M
Rogers Corporation(ROG)0436,707+436,707$0$39.99M5.02%+$39.99M
Eagle Materials Inc.(EXP)90,000165,000+75,000$20.97M$34.10M4.28%+$13.13M
Aste701,500786,500+85,000$33.76M$34.07M4.28%+$308.0K
Atro1,230,000597,469-632,531$56.10M$32.41M4.07%-$23.69M
Ain760,000600,000-160,000$40.51M$30.42M3.82%-$10.09M
Apog708,000813,000+105,000$30.85M$29.60M3.72%-$1.25M
DXP Enterprises, Inc.(DXPE)0240,000+240,000$0$26.35M3.31%+$26.35M
MasterBrand, Inc.(MBC)2,300,0002,300,0000$30.29M$25.39M3.19%-$4.90M
Cardinal Infrastructure Group Inc.(CDNL)0844,591+844,591$0$20.42M2.56%+$20.42M
Clearfield, Inc.(CLFD)625,200625,2000$21.49M$18.22M2.29%-$3.27M
Energy Recovery, Inc.(ERII)0677,251+677,251$0$9.14M1.15%+$9.14M
Aero-Swx0154,851+154,851$0$5.53M0.69%+$5.53M
Custom Truck One Source, Inc.(CTOS)1,925,000800,136-1,124,864$12.36M$4.61M0.58%-$7.75M
JBT Marel Corporation(JBTM)350,5460-350,546$49.23M$0—-$49.23M
Centuri Holdings, Inc.(CTRI)1,375,0000-1,375,000$29.11M$0—-$29.11M
NPK International Inc.(NPKI)1,576,8080-1,576,808$17.83M$0—-$17.83M
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ACK Asset Management LLC — 13F Holdings — Q4 2025 | TickerTrail