Dudley & Shanley
Latest statistics and disclosures from Dudley & Shanley's latest quarterly 13F-HR filing:
- Top 5 stock holdings are WPM, APH, AME, V, WSO, and represent 28.99% of Dudley & Shanley's stock portfolio.
- Added to shares of these 10 stocks: FAST (+$14M), FSS (+$14M), XYL (+$12M), WSO (+$9.3M), WAT, PFE, A, ROL, DCI, ALSN.
- Started 1 new stock position in PFE.
- Reduced shares in these 10 stocks: ADI (-$11M), BMI (-$8.8M), DHR (-$7.8M), PHO, APH, FISV, GNRC, RYAN, WPM, ORA.
- Sold out of its position in PHO.
- Dudley & Shanley was a net buyer of stock by $25M.
- Dudley & Shanley has $662M in assets under management (AUM), dropping by 8.35%.
- Central Index Key (CIK): 0000883511
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Portfolio Holdings for Dudley & Shanley
Dudley & Shanley holds 37 positions in its portfolio as reported in the June 2026 quarterly 13F filing
| Company (Ticker) | Portfolio Weight | Valued At | Change in Shares | Share Count | Share Price | |
|---|---|---|---|---|---|---|
| Wheaton Precious Metals Corp (WPM) | 7.7 | $51M | 455k | 112.32 |
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| Amphenol Corporation (APH) | 6.2 | $41M | -4% | 235k | 176.32 |
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| Ametek (AME) | 5.1 | $34M | 140k | 241.94 |
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| Visa (V) | 5.0 | $33M | 97k | 343.09 |
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| Watsco, Incorporated (WSO) | 4.9 | $33M | +40% | 78k | 416.73 |
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| Aon (AON) | 4.4 | $30M | 89k | 331.69 |
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| Ecolab (ECL) | 4.4 | $29M | 105k | 278.61 |
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| Service Corporation International (SCI) | 4.2 | $28M | 368k | 75.96 |
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| Analog Devices (ADI) | 4.0 | $27M | -29% | 67k | 397.17 |
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| Ferguson (FERG) | 3.7 | $25M | 104k | 237.33 |
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| Donaldson Company (DCI) | 3.7 | $24M | 272k | 89.77 |
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| Kadant (KAI) | 3.6 | $24M | 76k | 314.23 |
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| Fastenal Company (FAST) | 3.4 | $23M | +160% | 472k | 48.03 |
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| American Water Works (AWK) | 3.4 | $22M | 169k | 131.58 |
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| Charles Schwab Corporation (SCHW) | 3.4 | $22M | 241k | 92.27 |
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| Federal Signal Corporation (FSS) | 3.3 | $22M | +169% | 169k | 128.49 |
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| Xylem (XYL) | 3.2 | $21M | +123% | 181k | 118.21 |
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| Rollins (ROL) | 3.1 | $21M | +8% | 496k | 41.74 |
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| Kornit Digital (KRNT) | 3.1 | $20M | 1.3M | 16.25 |
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| Allison Transmission Hldngs I (ALSN) | 2.8 | $19M | 165k | 112.74 |
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| Ryan Specialty Group Hldgs I (RYAN) | 2.7 | $18M | -3% | 465k | 37.76 |
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| Progressive Corporation (PGR) | 2.2 | $15M | 66k | 218.45 |
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| Danaher Corporation (DHR) | 2.1 | $14M | -35% | 74k | 190.48 |
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| Nexgen Energy (NXE) | 1.7 | $12M | 1.2M | 9.39 |
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| Badger Meter (BMI) | 1.4 | $9.3M | -48% | 63k | 148.38 |
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| Agilent Technologies Inc C ommon (A) | 1.4 | $9.2M | +25% | 70k | 132.83 |
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| Waters Corporation (WAT) | 1.3 | $8.8M | +101% | 24k | 375.04 |
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| HEICO Corporation (HEI) | 1.0 | $6.9M | 20k | 356.19 |
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| Fiserv (FISV) | 0.8 | $5.4M | -23% | 111k | 49.05 |
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| Generac Holdings (GNRC) | 0.7 | $4.7M | -17% | 16k | 292.81 |
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| Pfizer (PFE) | 0.6 | $4.0M | NEW | 165k | 24.08 |
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| Microsoft Corporation (MSFT) | 0.6 | $3.9M | 11k | 373.02 |
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| Ormat Technologies (ORA) | 0.4 | $2.8M | -6% | 26k | 108.90 |
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| Roper Industries (ROP) | 0.1 | $677k | 2.0k | 338.39 |
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| Viper Energy Inc Cl A (VNOM) | 0.0 | $327k | 7.7k | 42.40 |
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| ATHA Energy Corp. (SASKF) | 0.0 | $52k | 75k | 0.70 |
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| Stallion Uranium Corp (STLNF) | 0.0 | $25k | 180k | 0.14 |
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Past Filings by Dudley & Shanley
SEC 13F filings are viewable for Dudley & Shanley going back to 2011
- Dudley & Shanley 2026 Q2 filed July 9, 2026
- Dudley & Shanley 2026 Q1 filed April 8, 2026
- Dudley & Shanley 2025 Q4 filed Jan. 9, 2026
- Dudley & Shanley 2025 Q3 filed Oct. 8, 2025
- Dudley & Shanley 2025 Q2 filed July 9, 2025
- Dudley & Shanley 2025 Q1 filed April 9, 2025
- Dudley & Shanley 2024 Q4 filed Jan. 3, 2025
- Dudley & Shanley 2024 Q3 filed Dec. 23, 2024
- Dudley & Shanley 2024 Q2 filed July 9, 2024
- Dudley & Shanley 2024 Q1 filed April 19, 2024
- Dudley & Shanley 2023 Q4 filed Jan. 12, 2024
- Dudley & Shanley 2023 Q3 filed Oct. 13, 2023
- Dudley & Shanley 2023 Q2 filed July 21, 2023
- Dudley & Shanley 2023 Q1 filed April 13, 2023
- Dudley & Shanley 2022 Q4 restated filed Jan. 18, 2023
- Dudley & Shanley 2022 Q4 filed Jan. 13, 2023