Follow-The-Filings

Featured 13F manager

Cantillon Capital Management LLC William Von Mueffling

New York, NY 23 processed 13Fs on this site · 2021 Q3–2026 Q2

  • $665M
  • 27 Positions
  • 2026 Q2
  • −95.6% QoQ
  • Top 5 40.2%

Portfolio

2026 Q2 · filed 7/29/2026 · 27 long · top 12 shown

top 5 40.2% · top 10 61.8%

AUM over time

2026 Q2 $665M −95.6% QoQ
2021 Q3 · $14.7B 2021 Q3 · $14.7B
Q3 2021
2021 Q4 · $15.1B · +3.2% QoQ 2021 Q4 · $15.1B · +3.2% QoQ
Q4
2022 Q1 · $14B · −7.5% QoQ 2022 Q1 · $14B · −7.5% QoQ
Q1 2022
2022 Q2 · $12B · −14.5% QoQ 2022 Q2 · $12B · −14.5% QoQ
Q2
2022 Q3 · $11B · −7.8% QoQ 2022 Q3 · $11B · −7.8% QoQ
Q3
2022 Q4 · $11.8B · +6.9% QoQ 2022 Q4 · $11.8B · +6.9% QoQ
Q4
2023 Q1 · $12.3B · +4.0% QoQ 2023 Q1 · $12.3B · +4.0% QoQ
Q1 2023
2023 Q2 · $14.3B · +16.5% QoQ 2023 Q2 · $14.3B · +16.5% QoQ
Q2
2023 Q3 · $13.5B · −5.8% QoQ 2023 Q3 · $13.5B · −5.8% QoQ
Q3
2023 Q4 · $15B · +11.0% QoQ 2023 Q4 · $15B · +11.0% QoQ
Q4
2024 Q1 · $15.9B · +6.2% QoQ 2024 Q1 · $15.9B · +6.2% QoQ
Q1 2024
2024 Q2 · $15B · −5.9% QoQ 2024 Q2 · $15B · −5.9% QoQ
Q2
2024 Q3 · $16.4B · +9.3% QoQ 2024 Q3 · $16.4B · +9.3% QoQ
Q3
2024 Q4 · $16.5B · +1.2% QoQ 2024 Q4 · $16.5B · +1.2% QoQ
Q4
2025 Q1 · $15.4B · −6.7% QoQ 2025 Q1 · $15.4B · −6.7% QoQ
Q1 2025
2025 Q2 · $17.3B · +12.0% QoQ 2025 Q2 · $17.3B · +12.0% QoQ
Q2
2025 Q3 · $18.2B · +5.0% QoQ 2025 Q3 · $18.2B · +5.0% QoQ
Q3
2025 Q4 · $18.5B · +1.8% QoQ 2025 Q4 · $18.5B · +1.8% QoQ
Q4
2026 Q1 · $15.1B · −18.6% QoQ 2026 Q1 · $15.1B · −18.6% QoQ
Q1 2026
2026 Q2 · $665M · −95.6% QoQ 2026 Q2 · $665M · −95.6% QoQ
Q2

Book

2024 Q1 2023 Q4 · filed 8 May · long equity

AVGO - Broadcom 6.77% Reduce −12.4% 811,687 $1,325 $1.1B −114,589 +$42M
SPGI - S&P Global 5.54% Reduce −2.0% 2,071,532 $425.45 $881M −41,532 −$50M
GOOGL - Alphabet · CL A 4.59% Add +13.3% 4,830,894 $150.93 $729M +565,218 +$133M
AMAT - Applied Matls 4.42% Reduce −2.0% 3,407,350 $206.23 $703M −68,901 +$139M
V - VISA · CL A 3.92% Reduce −2.0% 2,234,146 $279.08 $624M −44,743 +$30M
ADI - Analog Devices 3.91% Reduce −2.0% 3,146,063 $197.79 $622M −63,233 −$15M
MSFT - Microsoft 3.83% Reduce −2.0% 1,446,272 $420.72 $608M −29,005 +$54M
EFX - Equifax 3.32% Reduce −2.0% 1,975,502 $267.52 $528M −39,573 +$30M
ICE - Intercontinental Exchange 3.31% Reduce −2.0% 3,825,146 $137.43 $526M −78,012 +$24M
A - Agilent Technologies 3.27% Reduce −2.0% 3,570,458 $145.51 $520M −71,421 +$13M
TMO - Thermo Fisher Scientific 3.16% Reduce −2.0% 864,714 $581.21 $503M −17,303 +$34M
CBRE - CBRE Group · CL A 3.13% Reduce −2.0% 5,112,855 $97.24 $497M −102,655 +$12M
IQV - IQVIA 2.81% Reduce −2.0% 1,767,340 $252.89 $447M −35,616 +$30M
TSM - Taiwan Semiconductor Mfg 2.77% Reduce −2.0% 3,242,314 $136.05 $441M −65,656 +$97M
ADSK - Autodesk 2.73% Reduce −2.0% 1,668,662 $260.42 $435M −33,946 +$20M
AMT - American Tower 2.61% Reduce −2.0% 2,096,370 $197.59 $414M −42,054 −$47M
FAST - Fastenal 2.58% Reduce −2.0% 5,309,326 $77.14 $410M −106,979 +$59M
IBKR - Interactive Brokers · CL A 2.57% Reduce −2.0% 3,655,704 $111.71 $408M −73,165 +$99M
FERG - Ferguson 2.52% Reduce −2.0% 1,835,603 $218.43 $401M −37,260 +$39M
BLK - Blackrock 2.51% Reduce −2.1% 478,917 $833.70 $399M −10,207 +$2M
AON - AON PLC · CL A 2.51% Reduce −2.0% 1,196,190 $333.72 $399M −23,984 +$44M
Trinet Group 2.44% Reduce −12.4% 2,930,026 $132.49 $388M −415,917 −$10M
CME - CME Group 2.44% Reduce −2.0% 1,802,591 $215.29 $388M −36,107 +$850K
CDW - CDW Corp 2.23% Reduce −2.0% 1,387,311 $255.78 $355M −27,731 +$33M
ENTG - Entegris 2.22% Reduce −2.0% 2,515,891 $140.54 $354M −50,406 +$46M
LYV - Live Nation 2.13% Add +16.7% 3,205,694 $105.77 $339M +458,893 +$82M
VRSN - Verisign 2.04% Reduce −2.0% 1,715,147 $189.51 $325M −34,285 −$35M
CP - Canadian Pacific 1.98% Add +49.1% 3,567,692 $88.17 $315M +1,174,200 +$125M
SSNC - SS&C Technologies 1.98% Reduce −2.0% 4,880,263 $64.37 $314M −98,544 +$10M
ECL - Ecolab 1.82% Reduce −2.0% 1,250,920 $230.90 $289M −25,487 +$36M
ZTS - Zoetis · CL A 1.48% Reduce −2.0% 1,392,262 $169.21 $236M −27,958 −$45M
ADBE - Adobe 1.46% Add +20.2% 459,715 $504.60 $232M +77,309 +$4M
YUM - Yum Brands 1.26% New 1,447,300 $138.65 $201M +1,447,300 +$201M
MCO - Moodys 1.26% Reduce −2.0% 510,406 $393.03 $201M −10,264 −$3M
CACC - Credit Accep Mich 0.85% Reduce −2.0% 245,931 $551.55 $136M −4,979 +$2M
TW - Tradeweb Mkts · CL A 0.85% Reduce −2.1% 1,291,079 $104.17 $134M −27,547 +$15M
ORCL - Oracle 0.78% New 987,952 $125.61 $124M +987,952 +$124M

Exits / last held

not current holdings · last reported size, unchanged · gone vs 2023 Q4

Stock % of portfolio Recent activity Shares Reported price* Value Share change $ change
BC - Brunswick 1.55% Exit 0 $96.75 $232M −2,395,715 −$232M
BDX - Becton Dickinson & 1.41% Exit 0 $243.83 $212M −867,764 −$212M

* Reported price is value ÷ shares from the 13F as of period end — not a live market quote. Weight % is each long-equity position ÷ full 13F AUM, so rows may not sum to 100% when the filing includes options or other non-equity (excluded from this table). Share change and $ change are vs 2023 Q4. Click column headers to sort · click New / Hold / Add / Reduce to promote that move type to the top. Exit opens the last-held block below.

Filings history

20 periods · normalized AUM · open a period for holdings

Period Holdings AUM QoQ Form Filed Filing ID
2026 Q2 27 $665M −95.6% 13F-HR 7/29/2026 000127993626000005
2026 Q1 38 $15.1B −18.6% 13F-HR 5/7/2026 000127993626000004
2025 Q4 37 $18.5B +1.8% 13F-HR 2/11/2026 000127993626000001
2025 Q3 76 $18.2B RESTATEMENT 2/17/2026 000089914026000221
2025 Q3 38 $18.2B +5.0% 13F-HR 10/30/2025 000127993625000002
2025 Q2 75 $17.3B RESTATEMENT 2/17/2026 000089914026000220
2025 Q2 38 $17.3B +12.0% 13F-HR 7/30/2025 000108514625004326
2025 Q1 74 $15.4B RESTATEMENT 2/17/2026 000089914026000219
2025 Q1 37 $15.4B −6.7% 13F-HR 5/9/2025 000108514625002887
2024 Q4 36 $16.5B +1.2% 13F-HR 2/5/2025 000108514625000819
2024 Q3 38 $16.4B +9.3% 13F-HR 11/7/2024 000108514624005445
2024 Q2 39 $15B −5.9% 13F-HR 8/5/2024 000108514624003487
2024 Q1 37 $15.9B +6.2% 13F-HR 5/8/2024 000108514624002327
2023 Q4 37 $15B +11.0% 13F-HR 2/7/2024 000108514624000806
2023 Q3 39 $13.5B −5.8% 13F-HR 11/6/2023 000108514623004105
2023 Q2 38 $14.3B +16.5% 13F-HR 8/9/2023 000108514623003182
2023 Q1 37 $12.3B +4.0% 13F-HR 5/4/2023 000108514623002054
2022 Q4 39 $11.8B +6.9% 13F-HR 2/6/2023 000108514623000646
2022 Q3 39 $11B −7.8% 13F-HR 11/3/2022 000108514622003752
2022 Q2 39 $12B −14.5% 13F-HR 8/3/2022 000108514622002745
2022 Q1 37 $14B −7.5% 13F-HR 5/3/2022 000108514622001676
2021 Q4 38 $15.1B +3.2% 13F-HR 1/27/2022 000108514622000359
2021 Q3 37 $14.7B 13F-HR 10/26/2021 000108514621002904

About

CANTILLON CAPITAL MANAGEMENT LLC

23 processed 13Fs on this site · 2021 Q3–2026 Q2

Notable person
William Von Mueffling
SEC filing name
CANTILLON CAPITAL MANAGEMENT LLC
Location
New York, NY
All SEC filings
View on sec.gov