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Portfolio (Quarterly) Guide ↗

DUDLEY & SHANLEY, INC.

· CIK 0000883511
13F Portfolio $622M AUM 34 positions Filed Jan 9, 2026 EDGAR ↗ ← All Funds
Q1 2026 Q4 2025 · All 33 New
Page 1 of 2  ·  33 positions
# Ticker Company Sector Shares Value ↓ % Port Chg Shares Chg % Period Price ① Since Period ①
1 WPM Wheaton Precious Mtls Basic Materials 668,605.0 $78.6M 12.63% NEW $117.52 +18.5%
2 APH Amphenol Corp. Technology 282,911.0 $38.2M 6.14% NEW $135.14 -7.5%
3 V Visa Inc. Financial Services 97,216.0 $34.1M 5.48% NEW $350.71 -8.0%
4 ADI Analog Devices Technology 125,021.0 $33.9M 5.45% NEW $271.20 +53.9%
5 AON Aon plc Financial Services 88,782.0 $31.3M 5.04% NEW $352.88 -10.1%
6 AME Ametek Inc. Industrials 139,796.0 $28.7M 4.61% NEW $205.31 +11.0%
7 SCI Service Corp. Int'l Consumer Cyclical 367,633.0 $28.7M 4.61% NEW $77.97 +0.4%
8 ECL Ecolab Inc. Basic Materials 105,058.0 $27.6M 4.43% NEW $262.52 -5.2%
9 ROL Rollins, Inc. Consumer Cyclical 455,730.0 $27.4M 4.40% NEW $60.02 -11.0%
10 DHR Danaher Corp. Healthcare 114,881.0 $26.3M 4.23% NEW $228.92 -28.1%
11 RYAN Ryan Specialty Hldngs Financial Services 477,671.0 $24.7M 3.96% NEW $51.63 -41.4%
12 SCHW Charles Schwab Financial Services 240,933.0 $24.1M 3.87% NEW $99.91 -10.5%
13 DCI Donaldson Co., Inc. Industrials 270,405.0 $24.0M 3.85% NEW $88.66 -5.4%
14 FERG Ferguson Enterprises Industrials 104,175.0 $23.2M 3.73% NEW $222.63 +4.2%
15 AWK Amer. Water Works Utilities 169,044.0 $22.1M 3.54% NEW $130.50 -4.8%
16 WSO Watsco, Inc. Industrials 55,692.0 $18.8M 3.02% NEW $336.95 +23.5%
17 ALSN Allison Transmission Consumer Cyclical 164,597.0 $16.1M 2.59% NEW $97.90 +19.5%
18 KAI Kadant Inc. Industrials 55,120.0 $15.7M 2.52% NEW $285.02 +13.1%
19 PGR Progressive Corp. Financial Services 66,280.0 $15.1M 2.43% NEW $227.72 -13.9%
20 BMI Badger Meter Inc Technology 82,695.0 $14.4M 2.32% NEW $174.41 -34.5%
Page 1 of 2  ·  33 positions

Period Price is the implied market price on the last day of the reporting period, calculated as reported value ÷ shares held. It is not the fund's purchase price or cost basis — the fund may have initiated or added to the position at any point during the quarter at a different price. Since Period shows the price change from that quarter-end snapshot to today's last price — it reflects stock movement after the report date, not the fund's actual return.

Sector Allocation
Industrials 22.6%
Financial Services 20.9%
Basic Materials 17.1%
Technology 16.3%
Consumer Cyclical 11.6%
Healthcare 5.5%
Utilities 4.1%
Energy 1.9%