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Disclosery

13F-HR filed by DUDLEY & SHANLEY, INC.

DUDLEY & SHANLEY, INC. filed this 13F-HR for the quarter ended 2026-06-30, filed 2026-07-09, with 37 holding rows worth $662,286,267.

Accession
0000883511-26-000003
Filer
CIK 883511
Filed
2026-07-09
Accepted by EDGAR
acceptance time not in the bulk data set
Ingested
Source
SEC quarterly data set

Original filing

13F report for Q2 2026

A holdings report, 38 entries on the cover page, a total value of $662,286,267 stated on the cover page (in dollars after the unit check, H1), rows summing to $662,286,267 with VALUE read as dollars as filed, 13F file number 028-03037. The quarter's positions are built on this report. The resolved quarter.

The information table after summing rows of one CUSIP and put or call (H4), with the CUSIP and issuer name as filed. Values in dollars after the unit check (method).

Issuer as filedCUSIPClassAmountValueValue read asType
WHEATON PRECIOUS METALS CORP COM962879102Stock454,640$51,065,165dollars as filed
AMPHENOL CORP NEW032095101COM234,451$41,338,400dollars as filed
AMETEK INC COM031100100Stock139,731$33,806,518dollars as filed
Visa Inc92826C839COM96,971$33,269,780dollars as filed
WATSCO INC COM942622200Stock78,012$32,509,941dollars as filed
AON PLC SHS CL AG0403H108Stock88,807$29,456,394dollars as filed
ECOLAB INC COM278865100Stock104,693$29,168,517dollars as filed
SERVICE CORP INTL COM817565104Stock367,783$27,936,797dollars as filed
Analog Devices,Inc.032654105COM67,200$26,689,824dollars as filed
FERGUSON ENTERPRISES INC COMMON STOCK NEW31488V107Stock104,225$24,735,719dollars as filed
DONALDSON INC COM257651109Stock272,330$24,447,064dollars as filed
KADANT INC48282T104COM75,735$23,798,209dollars as filed
FASTENAL CO COM311900104Stock472,440$22,691,293dollars as filed
AMERICAN WTR WKS CO INC NEW COM030420103Stock169,344$22,282,284dollars as filed
Charles Schwab Corp808513105COM240,933$22,230,888dollars as filed
FEDERAL SIGNAL CORP313855108COM169,285$21,751,430dollars as filed
XYLEM INC COM98419M100Stock181,050$21,401,920dollars as filed
ROLLINS INC COM775711104Stock495,655$20,688,640dollars as filed
KORNIT DIGITAL LTDM6372Q113SHS1,255,265$20,398,056dollars as filed
ALLISON TRANSMISSION HLDGS I01973R101COM165,037$18,606,271dollars as filed
RYAN SPECIALTY HOLDINGS INC CL A78351F107Stock465,146$17,563,913dollars as filed
Progressive Corporation743315103COM66,280$14,478,866dollars as filed
Danaher Corporation235851102COM74,024$14,100,092dollars as filed
NEXGEN ENERGY LTD COM65340P106Stock1,225,500$11,507,445dollars as filed
BADGER METER INC COM056525108Stock63,000$9,347,940dollars as filed
AGILENT TECHNOLOGIES INC COM00846U101Stock69,500$9,231,685dollars as filed
WATERS CORP COM941848103Stock23,590$8,847,194dollars as filed
HEICO CORP NEW COM422806109Stock19,500$6,945,705dollars as filed
FISERV INC337738108COM110,558$5,422,870dollars as filed
GENERAC HLDGS INC368736104COM16,150$4,728,881dollars as filed
Pfizer Inc.717081103COM165,000$3,973,200dollars as filed
Microsoft Corp594918104COM10,569$3,942,448dollars as filed
ORMAT TECHNOLOGIES INC686688102COM26,100$2,842,290dollars as filed
ROPER TECHNOLOGIES INC COM776696106Stock2,000$676,780dollars as filed
VIPER ENERGY INC64361Q101CL A7,700$326,480dollars as filed
ATHA Energy Corp.046824108COM74,500$51,991dollars as filed
Stallion Uranium Corp852919208COM180,000$25,377dollars as filed

Amendment chain

FilingRoleFiledAcceptedIngested
13F-HR 0000883511-26-000003this filing2026-07-09acceptance time not in the bulk data set