Skip to main content
Focused investors/William Von Mueffling

William Von Mueffling - Cantillon Capital Management

As of Q1 2026, this manager reported 38 long-equity positions worth $15.05B in aggregate.

As of Q1 2026, William Von Mueffling's Cantillon Capital Management held 38 long-equity positions with a reported value of $15.05B.

Get email alerts when William Von Mueffling files a new 13F — sign in or create a free account.

Updated 2026-05-26 from SEC 13F data.

Live quotes available for 38 of 39 rows. Rows without a quote are marked unavailable.

1AVGOBROADCOM INC8.54%Reduce -14.3%4,699,739$1.55B$329.9152w: $138.10 - $374.23; reported $329.91
2GOOGLALPHABET INC5.60%Reduce -1.1%4,183,532$1.02B$243.1052w: $140.53 - $256.00; reported $243.10
3IBKRINTERACTIVE BROKERS GROUP IN4.80%Reduce -1.1%12,664,026$871.41M$68.8152w: $32.82 - $70.27; reported $68.81
4SPGIS&P GLOBAL INC4.67%Reduce -1.1%1,742,415$848.05M$486.7152w: $427.14 - $579.05; reported $486.71
5TSMTAIWAN SEMICONDUCTOR MFG LTD4.32%Reduce -1.1%2,807,971$784.24M$279.2952w: $134.25 - $286.00; reported $279.29
6CBRECBRE GROUP INC3.84%Reduce -1.1%4,427,021$697.52M$157.5652w: $108.45 - $167.56; reported $157.56
7VVISA INC3.64%Reduce -1.1%1,934,842$660.52M$341.3852w: $273.24 - $375.51; reported $341.38
8MSFTMICROSOFT CORP3.57%Reduce -1.1%1,252,524$648.74M$517.9552w: $344.79 - $555.45; reported $517.95
9AMATAPPLIED MATLS INC3.33%Reduce -1.1%2,951,260$604.24M$204.7452w: $123.74 - $215.70; reported $204.74
10BLKBLACKROCK INC3.28%Reduce -1.1%510,402$595.06M$1165.8752w: $773.74 - $1183.50; reported $1165.87
11FLUTFLUTTER ENTMT PLC3.14%Reduce -1.1%2,247,096$570.76M$254.0052w: $196.88 - $313.69; reported $254.00
12ICEINTERCONTINENTAL EXCHANGE IN3.07%Reduce -1.1%3,312,950$558.17M$168.4852w: $142.29 - $189.35; reported $168.48
13ADIANALOG DEVICES INC2.91%Reduce -1.1%2,152,518$528.87M$245.7052w: $158.65 - $258.13; reported $245.70
14UBERUBER TECHNOLOGIES INC2.75%Reduce -1.1%5,102,058$499.85M$97.9752w: $59.33 - $101.99; reported $97.97
15LYVLIVE NATION ENTERTAINMENT IN2.50%Reduce -1.1%2,775,959$453.59M$163.4052w: $107.65 - $175.25; reported $163.40
16FASTFASTENAL CO2.48%Reduce -1.1%9,196,705$451.01M$49.0452w: $34.69 - $50.63; reported $49.04
17FERGFERGUSON ENTERPRISES INC2.44%Reduce -1.1%1,969,891$442.4M$224.5852w: $146.00 - $243.40; reported $224.58
18AONAON PLC2.42%Reduce -1.1%1,233,741$439.93M$356.5852w: $323.73 - $412.97; reported $356.58
19EFXEQUIFAX INC2.42%Reduce -1.1%1,711,003$438.92M$256.5352w: $199.98 - $295.49; reported $256.53
20TMETENCENT MUSIC ENTMT GROUP2.37%Reduce -1.3%18,452,216$430.67M$23.3452w: $10.11 - $26.70; reported $23.34
21CMECME GROUP INC2.32%Reduce -1.1%1,561,173$421.81M$270.1952w: $213.94 - $290.79; reported $270.19
22TMOTHERMO FISHER SCIENTIFIC INC2.31%Reduce -1.1%866,770$420.4M$485.0252w: $385.46 - $620.00; reported $485.02
23AAGILENT TECHNOLOGIES INC2.19%Reduce -1.1%3,092,145$396.88M$128.3552w: $96.43 - $153.84; reported $128.35
24SSNCSS&C TECHNOLOGIES HLDGS INC2.07%Reduce -1.1%4,226,357$375.13M$88.7652w: $66.83 - $91.07; reported $88.76
25IQVIQVIA HLDGS INC2.02%Add +27.3%1,926,934$366M$189.9452w: $134.65 - $237.34; reported $189.94
26ADBEADOBE INC1.94%Add +16.8%1,000,308$352.86M$352.7552w: $330.04 - $557.90; reported $352.75
27AMTAMERICAN TOWER CORP NEW1.92%Reduce -1.1%1,815,816$349.22M$192.3252w: $172.51 - $234.47; reported $192.32
28TCOMTRIP COM GROUP LTD1.91%Add +12.4%4,606,141$346.38M$75.2052w: $51.35 - $78.65; reported $75.20
29CPCANADIAN PACIFIC KANSAS CITY1.71%Reduce -1.1%4,174,009$310.92M$74.4952w: $66.49 - $85.77; reported $74.49
30YUMYUM BRANDS INC1.71%Reduce -1.1%2,040,234$310.12M$152.0052w: $122.13 - $163.30; reported $152.00
31ORCLORACLE CORP1.32%Reduce -1.1%854,258$240.25M$281.2452w: $118.86 - $345.72; reported $281.24
32ENTGENTEGRIS INC1.24%Reduce -1.1%2,439,719$225.58M$92.4652w: $60.75 - $113.90; reported $92.46
33TWTRADEWEB MKTS INC1.18%Add +71.2%1,934,322$214.67M$110.9852w: $109.82 - $152.65; reported $110.98
34MCOMOODYS CORP1.16%Reduce -1.1%442,005$210.61M$476.4852w: $378.71 - $531.93; reported $476.48
35ALCALCON AG1.16%Reduce -1.1%2,823,322$210.37M$74.5152w: $73.22 - $100.71; reported $74.51
36ZTSZOETIS INC0.97%Reduce -1.1%1,205,716$176.42M$146.3252w: $139.34 - $196.55; reported $146.32
37FWONKLIBERTY MEDIA CORP DEL0.67%New1,166,139$121.8M$104.4552w: $74.34 - $106.26; reported $104.45
38ECLECOLAB INC0.12%Reduce -92.8%78,513$21.5M$273.8652w: $221.62 - $286.04; reported $273.86
39ICLRICON PLC-Sold0$0No quoteNo quote