DUDLEY & SHANLEY, INC. - Stock Holdings in 13F Filings (SEC)
Updated on March 15, 2026.
Based on 13F Filings filed with the SEC on January 9, 2026, for the 2025 Q4 period, DUDLEY & SHANLEY, INC. held in its portfolio 33 assets valued at $622,207,310 (i.e. $622.21M).
The most valuable assets in the portfolio included: Wheaton Precious Mtls ($78.57M), Amphenol Corp. ($38.23M), and Visa Inc. ($34.10M).
The chart below shows the top 10 valuable assets, and the table below shows the top 33 valuable assets.
You can see similar for other investment managers.
Related Topics: SEC Topic List.
Data Source: SEC.
DUDLEY & SHANLEY, INC. - Stock Holdings in 13F Filings (SEC)
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| Name of Issuer | No. of Shares | Value ($) | Class |
|---|---|---|---|
| Wheaton Precious Mtls | 668605 | 78574460 | COM |
| Amphenol Corp. | 282911 | 38232593 | COM |
| Visa Inc. | 97216 | 34094623 | COM |
| Analog Devices | 125021 | 33905695 | COM |
| Aon plc | 88782 | 31329392 | COM |
| Ametek Inc. | 139796 | 28701517 | COM |
| Service Corp. Int'l | 367633 | 28664345 | COM |
| Ecolab Inc. | 105058 | 27579826 | COM |
| Rollins, Inc. | 455730 | 27352915 | COM |
| Danaher Corp. | 114881 | 26298559 | COM |
| Ryan Specialty Hldngs | 477671 | 24662154 | COM |
| Charles Schwab | 240933 | 24071616 | COM |
| Donaldson Co., Inc. | 270405 | 23974107 | COM |
| Ferguson Enterprises | 104175 | 23192480 | COM |
| Amer. Water Works | 169044 | 22060242 | COM |
| Watsco, Inc. | 55692 | 18765419 | COM |
| Allison Transmission | 164597 | 16114046 | COM |
| Kadant Inc. | 55120 | 15710302 | COM |
| Progressive Corp. | 66280 | 15093282 | COM |
| Badger Meter Inc | 82695 | 14422835 | COM |
| Kornit Digital | 901960 | 12970185 | COM |
| NexGen Energy Ltd. | 1235150 | 11381828 | COM |
| Fiserv Inc. | 143923 | 9667308 | COM |
| Roper Technologies | 17455 | 7769744 | COM |
| Agilent Tech, Inc. | 55200 | 7511064 | COM |
| HEICO Corp. | 19500 | 6310005 | COM |
| Microsoft Corp. | 10569 | 5111380 | COM |
| Ormat Technologies | 28000 | 3093160 | COM |
| Generac Holdings | 19650 | 2679670 | COM |
| Invesco Water ETF | 32780 | 2308023 | COM |
| Viper Energy Inc | 7700 | 297451 | COM |
| Fastenal Co. | 7150 | 286929 | COM |
| Stallion Uranium Corp | 85000 | 20155 | COM |
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