DUDLEY & SHANLEY, INC. Concentrated Active

Location: Palm Beach, FL

CIK: 0000883511 · Show all filings

Period: Q3 2025 (← Previous) (Next →)

Filing Date: Oct 8, 2025

Total Value: $622M (100.0% shares, 0.0% debt)

Holdings (32)

WPM Wheaton Precious Mtls 12.5%

Value $77.8M Shares 695,665 Share Price $111.84 Est. Cost/Share $26.64 Unrealized @ Report Date +319.8%

APH Amphenol Corp. 6.3%

Value $39.18M Shares 316,596 Share Price $123.75 Est. Cost/Share $49.89 Unrealized @ Report Date +147.6%

V Visa Inc. 5.3%

Value $33.18M Shares 97,181 Share Price $341.38 Est. Cost/Share $208.01 Unrealized @ Report Date +63.8%

— Aon plc 5.1%

Value $31.64M Shares 88,732 Share Price $356.58 Est. Cost/Share $172.84 Unrealized @ Report Date —

SCI Service Corp. Int'l 4.9%

Value $30.74M Shares 369,433 Share Price $83.22 Est. Cost/Share $38.46 Unrealized @ Report Date +116.4%

ADI Analog Devices 4.9%

Value $30.71M Shares 124,996 Share Price $245.70 Est. Cost/Share $184.36 Unrealized @ Report Date +32.8%

ECL Ecolab Inc. 4.6%

Value $28.75M Shares 104,983 Share Price $273.86 Est. Cost/Share $96.52 Unrealized @ Report Date +182.9%

ROL Rollins, Inc. 4.3%

Value $26.76M Shares 455,650 Share Price $58.74 Est. Cost/Share $39.72 Unrealized @ Report Date +47.4%

AME Ametek Inc. 4.2%

Value $26.28M Shares 139,786 Share Price $188.00 Est. Cost/Share $125.21 Unrealized @ Report Date +49.9%

RYAN Ryan Specialty Hldngs 4.2%

Value $26.03M Shares 461,921 Share Price $56.36 Est. Cost/Share $38.14 Unrealized @ Report Date +47.8%

AWK Amer. Water Works 3.8%

Value $23.55M Shares 169,159 Share Price $139.19 Est. Cost/Share $136.82 Unrealized @ Report Date +1.1%

SCHW Charles Schwab 3.7%

Value $23M Shares 240,863 Share Price $95.47 Est. Cost/Share $65.84 Unrealized @ Report Date +44.6%

DHR Danaher Corp. 3.7%

Value $22.79M Shares 114,941 Share Price $198.26 Est. Cost/Share $171.58 Unrealized @ Report Date +15.4%

FISV Fiserv Inc. 3.6%

Value $22.55M Shares 174,921 Share Price $128.93 Est. Cost/Share $64.10 Unrealized @ Report Date +101.2%

DCI Donaldson Co., Inc. 3.6%

Value $22.15M Shares 270,585 Share Price $81.85 Est. Cost/Share $72.73 Unrealized @ Report Date +11.9%

DOX Amdocs Ltd. 3.3%

Value $20.23M Shares 246,539 Share Price $82.05 Est. Cost/Share $83.79 Unrealized @ Report Date -2.7%

KRNT Kornit Digital 2.7%

Value $17M Shares 1,258,895 Share Price $13.50 Est. Cost/Share $18.83 Unrealized @ Report Date -28.3%

FERG Ferguson Enterprises 2.7%

Value $16.96M Shares 75,500 Share Price $224.58 Est. Cost/Share $194.48 Unrealized @ Report Date +15.0%

KAI Kadant Inc. 2.6%

Value $16.42M Shares 55,175 Share Price $297.58 Est. Cost/Share $295.94 Unrealized @ Report Date +0.3%

WSO Watsco, Inc. 2.6%

Value $15.92M Shares 39,370 Share Price $404.30 Est. Cost/Share $356.62 Unrealized @ Report Date +13.4%

PGR Progressive Corp. 2.6%

Value $15.87M Shares 64,255 Share Price $246.95 * Est. Cost/Share $63.46 Unrealized @ Report Date +265.7%

ALSN Allison Transmission 2.2%

Value $13.97M Shares 164,547 Share Price $84.88 Est. Cost/Share $38.61 Unrealized @ Report Date +119.1%

NXE NexGen Energy Ltd. 1.8%

Value $11.05M Shares 1,235,150 Share Price $8.95 Est. Cost/Share $1.31 Unrealized @ Report Date +583.5%

A Agilent Tech, Inc. 1.1%

Value $7.085M Shares 55,200 Share Price $128.35 Est. Cost/Share $132.85 Unrealized @ Report Date -3.4%

HEI HEICO Corp. 1.0%

Value $6.295M Shares 19,500 Share Price $322.82 Est. Cost/Share $167.85 Unrealized @ Report Date +92.3%

MSFT Microsoft Corp. 0.9%

Value $5.622M Shares 10,854 Share Price $517.95 Est. Cost/Share $90.57 Unrealized @ Report Date +470.8%

GNRC Generac Holdings 0.5%

Value $3.289M Shares 19,650 Share Price $167.40 Est. Cost/Share $113.74 Unrealized @ Report Date +47.2%

ORA Ormat Technologies 0.5%

Value $2.907M Shares 30,200 Share Price $96.25 Est. Cost/Share $68.71 Unrealized @ Report Date +39.9%

PHO Invesco Water ETF 0.4%

Value $2.364M Shares 32,780 Share Price $72.11 Est. Cost/Share $52.99 Unrealized @ Report Date +36.1%

ROP Roper Technologies 0.2%

Value $1.272M Shares 2,550 Share Price $498.69 Est. Cost/Share $268.84 Unrealized @ Report Date +84.8%

OCUL Ocular Therapeutix 0.0%

Value $152K Shares 13,000 Share Price $11.69 Est. Cost/Share $6.19 Unrealized @ Report Date +88.8%

STLNF Stallion Uranium Corp 0.0%

Value $9,600 Shares 30,000 Share Price $0.32 Est. Cost/Share $0.32 Unrealized @ Report Date —

Ticker	Issuer	Shares	Value	%	Share Price	Est. Cost/Share	Unrealized @ Report Date	Class	CUSIP
WPM	Wheaton Precious Mtls	695,665	$77.8M	12.5%	$111.84	$26.64	+319.8%	COM	962879102
APH	Amphenol Corp.	316,596	$39.18M	6.3%	$123.75	$49.89	+147.6%	COM	032095101
V	Visa Inc.	97,181	$33.18M	5.3%	$341.38	$208.01	+63.8%	COM	92826C839
—	Aon plc	88,732	$31.64M	5.1%	$356.58	$172.84	—	COM	g0403h108
SCI	Service Corp. Int'l	369,433	$30.74M	4.9%	$83.22	$38.46	+116.4%	COM	817565104
ADI	Analog Devices	124,996	$30.71M	4.9%	$245.70	$184.36	+32.8%	COM	032654105
ECL	Ecolab Inc.	104,983	$28.75M	4.6%	$273.86	$96.52	+182.9%	COM	278865100
ROL	Rollins, Inc.	455,650	$26.76M	4.3%	$58.74	$39.72	+47.4%	COM	775711104
AME	Ametek Inc.	139,786	$26.28M	4.2%	$188.00	$125.21	+49.9%	COM	031100100
RYAN	Ryan Specialty Hldngs	461,921	$26.03M	4.2%	$56.36	$38.14	+47.8%	COM	78351F107
AWK	Amer. Water Works	169,159	$23.55M	3.8%	$139.19	$136.82	+1.1%	COM	030420103
SCHW	Charles Schwab	240,863	$23M	3.7%	$95.47	$65.84	+44.6%	COM	808513105
DHR	Danaher Corp.	114,941	$22.79M	3.7%	$198.26	$171.58	+15.4%	COM	235851102
FISV	Fiserv Inc.	174,921	$22.55M	3.6%	$128.93	$64.10	+101.2%	COM	337738108
DCI	Donaldson Co., Inc.	270,585	$22.15M	3.6%	$81.85	$72.73	+11.9%	COM	257651109
DOX	Amdocs Ltd.	246,539	$20.23M	3.3%	$82.05	$83.79	-2.7%	COM	G02602103
KRNT	Kornit Digital	1,258,895	$17M	2.7%	$13.50	$18.83	-28.3%	COM	M6372Q113
FERG	Ferguson Enterprises	75,500	$16.96M	2.7%	$224.58	$194.48	+15.0%	COM	31488V107
KAI	Kadant Inc.	55,175	$16.42M	2.6%	$297.58	$295.94	+0.3%	COM	48282T104
WSO	Watsco, Inc.	39,370	$15.92M	2.6%	$404.30	$356.62	+13.4%	COM	942622200
PGR	Progressive Corp.	64,255	$15.87M	2.6%	$246.95 *	$63.46	+265.7%	COM	743315103
ALSN	Allison Transmission	164,547	$13.97M	2.2%	$84.88	$38.61	+119.1%	COM	01973R101
NXE	NexGen Energy Ltd.	1,235,150	$11.05M	1.8%	$8.95	$1.31	+583.5%	COM	65340P106
A	Agilent Tech, Inc.	55,200	$7.085M	1.1%	$128.35	$132.85	-3.4%	COM	00846U101
HEI	HEICO Corp.	19,500	$6.295M	1.0%	$322.82	$167.85	+92.3%	COM	422806109
MSFT	Microsoft Corp.	10,854	$5.622M	0.9%	$517.95	$90.57	+470.8%	COM	594918104
GNRC	Generac Holdings	19,650	$3.289M	0.5%	$167.40	$113.74	+47.2%	COM	368736104
ORA	Ormat Technologies	30,200	$2.907M	0.5%	$96.25	$68.71	+39.9%	COM	686688102
PHO	Invesco Water ETF	32,780	$2.364M	0.4%	$72.11	$52.99	+36.1%	COM	46137V142
ROP	Roper Technologies	2,550	$1.272M	0.2%	$498.69	$268.84	+84.8%	COM	776696106
OCUL	Ocular Therapeutix	13,000	$152K	0.0%	$11.69	$6.19	+88.8%	COM	67576A100
STLNF	Stallion Uranium Corp	30,000	$9,600	0.0%	$0.32	$0.32	—	COM	852919208