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Dudley & Shanley, Inc.

Q3 2026 Holdings

Filed 2026-10-06 | 37 holdings | $629.2M | 13F-HR | View on SEC ↗ · Holdings Table ↗

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IssuerClassCUSIPValue ↓Shares% Portfolio
Wheaton Precious Mtls(WPM)COM962879102$56.4M421,4089.0%
Ametek Inc.(AME)COM031100100$31.5M127,2435.0%
Visa Inc.(V)COM92826C839$30.3M84,4194.8%
Ecolab Inc.(ECL)COM278865100$27.2M99,0434.3%
Service Corp. Int'l(SCI)COM817565104$26.1M342,4254.1%
Amphenol Corp.(APH)COM032095101$25.9M307,8284.1%
Analog Devices(ADI)COM032654105$25.6M64,6394.1%
Aon plc(AON)COMG0403H108$23.6M85,2023.7%
Donaldson Co., Inc.(DCI)COM257651109$22.6M260,1703.6%
Fastenal Co.(FAST)COM311900104$22.5M454,9403.6%
Ferguson Enterprises(FERG)COM31488V107$22.3M100,0323.5%
Progressive Corp.(PGR)COM743315103$21.6M104,1523.4%
Amer. Water Works(AWK)COM030420103$20.8M160,5503.3%
Charles Schwab(SCHW)COM808513105$20.7M211,9653.3%
Tyler Technologies(TYL)COM902252105$20.5M64,4003.3%
Roper Technologies(ROP)COM776696106$20.0M57,3253.2%
Allison Transmission(ALSN)COM01973R101$19.9M175,2743.2%
Kornit Digital(KRNT)COMM6372Q113$19.4M1,168,5453.1%
Federal Signal Corp(FSS)COM313855108$19.3M174,0503.1%
Kadant Inc.(KAI)COM48282T104$19.0M72,7823.0%
Xylem Inc.(XYL)COM98419M100$17.2M170,3102.7%
Ryan Specialty Hldngs(RYAN)COM78351F107$17.2M465,8892.7%
Danaher Corp.(DHR)COM235851102$15.8M71,1952.5%
Watsco, Inc.(WSO)COM942622200$15.6M51,5652.5%
NexGen Energy Ltd.(NXE)COM65340P106$11.2M1,225,5001.8%
Agilent Tech, Inc.(A)COM00846U101$11.1M64,5501.8%
Badger Meter Inc(BMI)COM056525108$10.5M84,6001.7%
Waters Corporation(WAT)COM941848103$10.4M23,5901.6%
Heico Corp.(HEI)COM422806109$5.8M19,0000.9%
Microsoft Corp.(MSFT)COM594918104$5.4M10,5690.9%
Pfizer, Inc.(PFE)COM717081103$4.7M165,0000.7%
Generac Holdings(GNRC)COM368736104$3.3M16,1500.5%
Fiserv Inc.(FISV)COM337738108$2.8M62,4490.4%
Ormat Technologies(ORA)COM686688102$2.4M26,1000.4%
Viper Energy Inc(VNOM)COM64361Q101$307.2K7,7000.0%
Atha Energy Corp.(SASKF)COM046824108$79.8K118,0000.0%