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 Q4 2024 Q3 · filed 5 Feb · long equity

AVGO - Broadcom 10.33% Add +0.5% 7,370,870 $231.84 $1.7B +39,477 +$444M
SPGI - S&P Global 5.62% Add +0.5% 1,868,814 $498.03 $931M +9,880 −$30M
GOOGL - Alphabet · CL A 5.13% Add +0.5% 4,487,038 $189.30 $849M +23,790 +$109M
V - VISA · CL A 3.96% Add +0.5% 2,075,195 $316.04 $656M +10,977 +$88M
CBRE - CBRE Group · CL A 3.77% Add +0.5% 4,748,386 $131.29 $623M +25,142 +$35M
FLUT - Flutter Entmt 3.76% Add +0.5% 2,410,178 $258.45 $623M +12,794 +$54M
IBKR - Interactive Brokers · CL A 3.63% Add +0.5% 3,395,690 $176.67 $600M +18,047 +$129M
TSM - Taiwan Semiconductor Mfg 3.59% Add +0.5% 3,011,664 $197.49 $595M +15,977 +$75M
MSFT - Microsoft 3.42% Add +0.5% 1,343,400 $421.50 $566M +7,129 −$9M
ICE - Intercontinental Exchange 3.20% Add +0.5% 3,553,300 $149.01 $529M +18,854 −$38M
AMAT - Applied Matls 3.11% Add +0.5% 3,165,402 $162.63 $515M +16,804 −$121M
BLK - Blackrock 3.00% New 483,793 $1,025 $496M +483,793 +$496M
ADI - Analog Devices 2.97% Add +0.5% 2,309,278 $212.46 $491M +12,156 −$38M
TMO - Thermo Fisher Scientific 2.92% Add +16.4% 929,870 $520.23 $484M +130,870 −$10M
AON - AON PLC · CL A 2.87% Add +0.5% 1,323,228 $359.16 $475M +7,010 +$20M
EFX - Equifax 2.83% Add +0.5% 1,835,102 $254.85 $468M +9,702 −$69M
A - Agilent Technologies 2.69% Add +0.5% 3,316,557 $134.34 $446M +17,627 −$44M
IQV - IQVIA 2.45% Add +12.3% 2,066,144 $196.51 $406M +226,017 −$30M
CME - CME Group 2.35% Add +0.6% 1,674,438 $232.23 $389M +9,622 +$22M
LYV - Live Nation 2.33% Add +0.5% 2,977,411 $129.50 $386M +15,891 +$61M
FERG - Ferguson Enterprises 2.22% Add +24.5% 2,111,673 $173.57 $367M +415,002 +$30M
AMT - American Tower 2.16% Add +0.5% 1,947,595 $183.41 $357M +10,343 −$93M
FAST - Fastenal 2.14% Add +0.5% 4,931,928 $71.91 $355M +26,254 +$4M
SSNC - SS&C Technologies 2.08% Add +0.6% 4,533,081 $75.78 $344M +25,895 +$9M
TCOM - Trip Group 1.97% Reduce −2.5% 4,748,766 $68.66 $326M −119,617 +$37M
ADBE - Adobe 1.65% Add +18.3% 614,862 $444.68 $273M +95,235 +$4M
ECL - Ecolab 1.65% Add +0.5% 1,161,946 $234.32 $272M +6,207 −$23M
CP - Canadian Pacific 1.63% Add +0.5% 3,725,023 $72.37 $270M +19,871 −$47M
ENTG - Entegris 1.57% Add +12.6% 2,616,354 $99.06 $259M +291,893 −$2M
YUM - Yum Brands 1.52% Add +31.7% 1,880,379 $134.16 $252M +452,339 +$53M
TME - Tencent Music Entmt Group 1.50% Add +18.3% 21,840,815 $11.35 $248M +3,384,230 +$25M
UBER - UBER Technologies 1.47% Add +0.5% 4,044,244 $60.32 $244M +21,594 −$58M
MCO - Moodys 1.36% Add +0.5% 474,082 $473.37 $224M +2,537 +$626K
ZTS - Zoetis · CL A 1.27% Add +0.5% 1,293,251 $162.93 $211M +6,920 −$41M
TW - Tradeweb Mkts · CL A 0.95% Add +0.5% 1,199,178 $130.92 $157M +6,408 +$9M
ORCL - Oracle 0.92% Add +0.6% 917,515 $166.64 $153M +5,131 −$3M

Exits / last held

not current holdings · last reported size, unchanged · gone vs 2024 Q3

Stock % of portfolio Recent activity Shares Reported price* Value Share change $ change
BLK - Blackrock 2.84% Exit 0 $949.51 $464M −488,699 −$464M
CDW - CDW Corp 1.77% Exit 0 $226.30 $290M −1,281,644 −$290M
CACC - Credit Accep Mich 0.62% Exit 0 $443.42 $101M −227,057 −$101M

* 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 2024 Q3. 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