William Von Mueffling - Cantillon Capital Management
As of Q1 2026, William Von Mueffling reported 38 long-equity positions worth $15.05B in aggregate.
Copy-investor backtest
- Latest quarter
- +5.15%
- 1-year
- +26.09%
- 3-year
- +79.40%
- 3-year top 5
- +176.60%
Return from mechanically copying the disclosed 13F equity portfolio after each filing and rebalancing at the next. Method & limitations.
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Updated 2026-06-06 from SEC 13F data.
Live quotes available for 36 of 39 rows. Rows without a quote are marked unavailable.
| 1 | SPGI | S&P GLOBAL INC | 6.01% | Reduce -0.4% | 2,134,871 | $719.58M | $337.06 | |
| 2 | GOOGL | ALPHABET INC | 5.41% | Reduce -0.4% | 297,300 | $647.89M | $2179.26 | |
| 3 | AVGO | BROADCOM INC | 4.18% | Reduce -0.5% | 1,031,072 | $500.91M | $485.81 | |
| 4 | ADI | ANALOG DEVICES INC | 3.96% | Reduce -0.5% | 3,243,694 | $473.87M | $146.09 | |
| 5 | AMT | AMERICAN TOWER CORP NEW | 3.93% | Reduce -0.5% | 1,844,227 | $471.37M | $255.59 | |
| 6 | TMO | THERMO FISHER SCIENTIFIC INC | 3.89% | Reduce -0.5% | 858,206 | $466.25M | $543.28 | |
| 7 | V | VISA INC | 3.78% | Reduce -0.5% | 2,301,340 | $453.11M | $196.89 | |
| 8 | A | AGILENT TECHNOLOGIES INC | 3.43% | Reduce -0.3% | 3,458,756 | $410.8M | $118.77 | |
| 9 | FIS | FIDELITY NATL INFORMATION SV | 3.24% | Reduce -0.5% | 4,233,078 | $388.05M | $91.67 | |
| 10 | EFX | EQUIFAX INC | 3.10% | Reduce -0.3% | 2,031,359 | $371.29M | $182.78 | |
| 11 | ICE | INTERCONTINENTAL EXCHANGE IN | 3.09% | Reduce -0.5% | 3,941,181 | $370.63M | $94.04 | |
| 12 | WTW | WILLIS TOWERS WATSON PLC LTD | 3.05% | Reduce -0.5% | 1,849,323 | $365.04M | $197.39 | |
| 13 | IQV | IQVIA HLDGS INC | 2.85% | Add +6.6% | 1,573,929 | $341.53M | $216.99 | |
| 14 | CBRE | CBRE GROUP INC | 2.79% | Add +3.3% | 4,545,033 | $334.56M | $73.61 | |
| 15 | CME | CME GROUP INC | 2.78% | Reduce -0.4% | 1,629,036 | $333.46M | $204.70 | |
| 16 | AON | AON PLC | 2.78% | Reduce -0.5% | 1,233,391 | $332.62M | $269.68 | |
| 17 | ZTS | ZOETIS INC | 2.68% | Reduce -0.4% | 1,871,317 | $321.66M | $171.89 | |
| 18 | AMAT | APPLIED MATLS INC | 2.66% | Reduce -0.3% | 3,501,758 | $318.59M | $90.98 | |
| 19 | VRSN | VERISIGN INC | 2.46% | Add +4.9% | 1,763,237 | $295.04M | $167.33 | |
| 20 | BC | BRUNSWICK CORP | 2.37% | Add +5.4% | 4,346,374 | $284.17M | $65.38 | |
| 21 | TNET | TRINET GROUP INC | 2.32% | Reduce -0.5% | 3,575,142 | $277.5M | No quote | No quote |
| 22 | ECL | ECOLAB INC | 2.31% | Reduce -0.3% | 1,797,161 | $276.33M | $153.76 | |
| 23 | MSFT | MICROSOFT CORP | 2.29% | Add +12.7% | 1,068,121 | $274.33M | $256.83 | |
| 24 | TSM | TAIWAN SEMICONDUCTOR MFG LTD | 2.29% | Reduce -0.5% | 3,350,118 | $273.87M | $81.75 | |
| 25 | FAST | FASTENAL CO | 2.28% | Reduce -0.2% | 5,466,273 | $272.88M | $49.92 | |
| 26 | BDX | BECTON DICKINSON & CO | 2.26% | Add +0.0%1.025:1 split | 1,097,454 | $270.56M | $246.53 | |
| 27 | GOOG | ALPHABET INC | 2.21% | Reduce -0.6% | 120,911 | $264.49M | $2187.45 | |
| 28 | BLK | BLACKROCK INC | 1.89% | Add +62.2% | 371,881 | $226.49M | $609.04 | |
| 29 | ADSK | AUTODESK INC | 1.79% | Add +8.8% | 1,246,329 | $214.32M | $171.96 | |
| 30 | SSNC | SS&C TECHNOLOGIES HLDGS INC | 1.78% | Reduce -0.6% | 3,665,916 | $212.88M | $58.07 | |
| 31 | ENTG | ENTEGRIS INC | 1.60% | Reduce -0.1% | 2,083,722 | $191.97M | $92.13 | |
| 32 | META | META PLATFORMS INC | 1.54% | Reduce -0.4% | 1,142,935 | $184.3M | $161.25 | |
| 33 | MCO | MOODYS CORP | 1.20% | Reduce -0.2% | 527,812 | $143.55M | $271.97 | |
| 34 | ADBE | ADOBE SYSTEMS INCORPORATED | 1.18% | New | 385,562 | $141.14M | $366.06 | |
| 35 | IBKR | INTERACTIVE BROKERS GROUP IN | 1.14% | Add +12.1% | 2,492,911 | $137.14M | $55.01 | |
| 36 | AWI | ARMSTRONG WORLD INDS INC NEW | 1.11% | Reduce -0.3% | 1,780,764 | $133.49M | $74.96 | |
| 37 | CACC | CREDIT ACCEP CORP MICH | 1.01% | Reduce -0.7% | 255,498 | $120.96M | $473.41 | |
| 38 | EDR | ENDEAVOR GROUP HLDGS INC | 0.71% | Add +17.1% | 4,136,450 | $85.05M | No quote | No quote |
| 39 | HAYW | HAYWARD HLDGS INC | 0.66% | New | 5,463,018 | $78.61M | No quote | No quote |