Dudley & Shanley, Inc. Portfolio Stock Holdings
Dudley & Shanley, Inc. disclosed 37 stock positions valued at approximately $662.3 million in its latest SEC 13F filing. The largest holdings include Wheaton Precious Mtls, Amphenol Corp., and Ametek Inc.. The filing reflects positions held as of June 30, 2026 and was filed on July 9, 2026.
- Report Period
- June 30, 2026
- No. of Stocks
- 37
- Portfolio Value
- $662.3M
Holdings by Sector
Dudley & Shanley, Inc. Portfolio Holdings in Q2 2026
33 holdings in the latest reporting period.
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| Company | Symbol | Sector | Portfolio % | Shares | Change (Shares) | Change % | Value |
|---|---|---|---|---|---|---|---|
| Wheaton Precious Mtls | WPM | Basic Materials | 7.71% | 454,640 | -4,745 | -1.03% | $51,065,165 |
| Amphenol Corp. | APH | Technology | 6.24% | 234,451 | -11,300 | -4.60% | $41,338,400 |
| Ametek Inc. | AME | Industrials | 5.10% | 139,731 | -15 | -0.01% | $33,806,518 |
| Visa Inc. | V | Financial Services | 5.02% | 96,971 | -195 | -0.20% | $33,269,780 |
| Watsco, Inc. | WSO | Industrials | 4.91% | 78,012 | +22,320 | +40.08% | $32,509,941 |
| Ecolab Inc. | ECL | Basic Materials | 4.40% | 104,693 | -315 | -0.30% | $29,168,517 |
| Service Corp. Int'l | SCI | Consumer Cyclical | 4.22% | 367,783 | +150 | +0.04% | $27,936,797 |
| Analog Devices | ADI | Technology | 4.03% | 67,200 | -27,921 | -29.35% | $26,689,824 |
| Ferguson Enterprises | FERG | Industrials | 3.73% | 104,225 | +50 | +0.05% | $24,735,719 |
| Donaldson Co., Inc. | DCI | Industrials | 3.69% | 272,330 | +1,925 | +0.71% | $24,447,064 |
| Kadant Inc. | KAI | Industrials | 3.59% | 75,735 | - | - | $23,798,209 |
| Fastenal Co. | FAST | Industrials | 3.43% | 472,440 | +291,190 | +160.66% | $22,691,293 |
| Amer. Water Works | AWK | Utilities | 3.36% | 169,344 | +300 | +0.18% | $22,282,284 |
| Charles Schwab | SCHW | Financial Services | 3.36% | 240,933 | - | - | $22,230,888 |
| Federal Signal Corp | FSS | Industrials | 3.28% | 169,285 | +106,555 | +169.86% | $21,751,430 |
| Xylem Inc. | XYL | Industrials | 3.23% | 181,050 | +100,220 | +123.99% | $21,401,920 |
| Rollins, Inc. | ROL | Consumer Cyclical | 3.12% | 495,655 | +39,925 | +8.76% | $20,688,640 |
| Kornit Digital | KRNT | Other | 3.08% | 1,255,265 | +650 | +0.05% | $20,398,056 |
| Allison Transmission | ALSN | Consumer Cyclical | 2.81% | 165,037 | +440 | +0.27% | $18,606,271 |
| Ryan Specialty Hldngs | RYAN | Financial Services | 2.65% | 465,146 | -14,875 | -3.10% | $17,563,913 |
| Progressive Corp. | PGR | Financial Services | 2.19% | 66,280 | - | - | $14,478,866 |
| Danaher Corp. | DHR | Healthcare | 2.13% | 74,024 | -40,857 | -35.56% | $14,100,092 |
| NexGen Energy Ltd. | NXE | Energy | 1.74% | 1,225,500 | +1,000 | +0.08% | $11,507,445 |
| Badger Meter Inc | BMI | Technology | 1.41% | 63,000 | -59,150 | -48.42% | $9,347,940 |
| Agilent Tech, Inc. | A | Healthcare | 1.39% | 69,500 | +14,300 | +25.91% | $9,231,685 |
| Waters Corporation | WAT | Healthcare | 1.34% | 23,590 | +11,870 | +101.28% | $8,847,194 |
| HEICO Corp. | HEI | Industrials | 1.05% | 19,500 | - | - | $6,945,705 |
| Fiserv Inc. | FI | Technology | 0.82% | 110,558 | -33,365 | -23.18% | $5,422,870 |
| Generac Holdings | GNRC | Industrials | 0.71% | 16,150 | -3,500 | -17.81% | $4,728,881 |
| Pfizer, Inc. | PFE | Healthcare | 0.60% | 165,000 | +165,000 | +100.00% | $3,973,200 |
| Microsoft Corp. | MSFT | Technology | 0.60% | 10,569 | - | - | $3,942,448 |
| Ormat Technologies | ORA | Utilities | 0.43% | 26,100 | -1,900 | -6.79% | $2,842,290 |
| Roper Technologies | ROP | Technology | 0.10% | 2,000 | - | - | $676,780 |