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.
Get email alerts when William Von Mueffling files a new 13F — sign in or create a free account.
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 | 6.50% | Reduce -10.4% | 2,084,527 | $983.75M | $471.93 | |
| 2 | GOOGL | ALPHABET INC | 5.56% | Reduce -6.9% | 290,373 | $841.22M | $2897.04 | |
| 3 | AVGO | BROADCOM INC | 4.42% | Reduce -7.1% | 1,006,000 | $669.4M | $665.41 | |
| 4 | EFX | EQUIFAX INC | 3.83% | Reduce -7.1% | 1,980,280 | $579.81M | $292.79 | |
| 5 | TMO | THERMO FISHER SCIENTIFIC INC | 3.69% | Reduce -7.0% | 838,290 | $559.34M | $667.24 | |
| 6 | ADI | ANALOG DEVICES INC | 3.68% | Reduce -6.8% | 3,170,886 | $557.35M | $175.77 | |
| 7 | A | AGILENT TECHNOLOGIES INC | 3.56% | Reduce -7.0% | 3,376,215 | $539.01M | $159.65 | |
| 8 | AMAT | APPLIED MATLS INC | 3.55% | Reduce -6.9% | 3,416,194 | $537.57M | $157.36 | |
| 9 | ICE | INTERCONTINENTAL EXCHANGE IN | 3.48% | Reduce -6.9% | 3,850,096 | $526.58M | $136.77 | |
| 10 | AMT | AMERICAN TOWER CORP NEW | 3.48% | Reduce -7.0% | 1,799,761 | $526.43M | $292.50 | |
| 11 | V | VISA INC | 3.22% | Reduce -6.9% | 2,246,953 | $486.94M | $216.71 | |
| 12 | CBRE | CBRE GROUP INC | 3.07% | Reduce -6.8% | 4,283,446 | $464.8M | $108.51 | |
| 13 | FIS | FIDELITY NATL INFORMATION SV | 2.98% | Add +9.2% | 4,134,390 | $451.27M | $109.15 | |
| 14 | ZTS | ZOETIS INC | 2.94% | Reduce -17.2% | 1,826,045 | $445.61M | $244.03 | |
| 15 | WTW | WILLIS TOWERS WATSON PLC LTD | 2.84% | Add +8.3% | 1,807,400 | $429.24M | $237.49 | |
| 16 | VRSN | VERISIGN INC | 2.74% | Reduce -7.0% | 1,636,612 | $415.41M | $253.82 | |
| 17 | ECL | ECOLAB INC | 2.71% | Reduce -7.0% | 1,749,897 | $410.51M | $234.59 | |
| 18 | TSM | TAIWAN SEMICONDUCTOR MFG LTD | 2.60% | Reduce -7.0% | 3,269,297 | $393.33M | $120.31 | |
| 19 | BC | BRUNSWICK CORP | 2.54% | Reduce -7.0% | 3,812,919 | $384.08M | $100.73 | |
| 20 | META | META PLATFORMS INC | 2.48% | Reduce -7.0% | 1,114,649 | $374.91M | $336.35 | |
| 21 | CME | CME GROUP INC | 2.40% | Reduce -7.0% | 1,591,456 | $363.59M | $228.46 | |
| 22 | AON | AON PLC | 2.39% | Reduce -6.9% | 1,204,090 | $361.9M | $300.56 | |
| 23 | IQV | IQVIA HLDGS INC | 2.31% | Add +9.9% | 1,239,587 | $349.74M | $282.14 | |
| 24 | GOOG | ALPHABET INC | 2.26% | Reduce -12.0% | 118,309 | $342.34M | $2893.59 | |
| 25 | FAST | FASTENAL CO | 2.26% | Reduce -6.9% | 5,333,285 | $341.65M | $64.06 | |
| 26 | TNET | TRINET GROUP INC | 2.20% | Reduce -7.1% | 3,494,896 | $332.92M | No quote | No quote |
| 27 | ADSK | AUTODESK INC | 2.07% | Reduce -6.8% | 1,116,267 | $313.88M | $281.19 | |
| 28 | MSFT | MICROSOFT CORP | 2.05% | Reduce -6.8% | 921,442 | $309.9M | $336.32 | |
| 29 | SSNC | SS&C TECHNOLOGIES HLDGS INC | 1.94% | Reduce -6.8% | 3,580,872 | $293.56M | $81.98 | |
| 30 | ENTG | ENTEGRIS INC | 1.86% | Reduce -7.0% | 2,029,260 | $281.22M | $138.58 | |
| 31 | BDX | BECTON DICKINSON & CO | 1.73% | Reduce -6.8% | 1,042,502 | $262.17M | $251.48 | |
| 32 | MCO | MOODYS CORP | 1.33% | Reduce -7.0% | 514,015 | $200.76M | $390.58 | |
| 33 | CACC | CREDIT ACCEP CORP MICH | 1.14% | Reduce -7.1% | 249,861 | $171.82M | $687.68 | |
| 34 | IBKR | INTERACTIVE BROKERS GROUP IN | 1.13% | Reduce -7.0% | 2,162,492 | $171.75M | $79.42 | |
| 35 | AWI | ARMSTRONG WORLD INDS INC NEW | 0.93% | Add +2.7% | 1,210,207 | $140.53M | $116.12 | |
| 36 | EDR | ENDEAVOR GROUP HLDGS INC | 0.79% | New | 3,425,337 | $119.51M | No quote | No quote |
| 37 | PRI | PRIMERICA INC | 0.74% | Reduce -25.4% | 727,292 | $111.47M | $153.27 | |
| 38 | BLK | BLACKROCK INC | 0.62% | New | 102,295 | $93.66M | $915.56 | |
| 39 | CTXS | CITRIX SYS INC | - | Sold | 0 | $0 | No quote | No quote |