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

2025 Q1 2024 Q4 · filed 9 May · long equity

AVGO - Broadcom 6.84% Reduce −14.4% 6,306,874 $167.43 $1.1B −1,063,996 −$653M
SPGI - S&P Global 5.96% Reduce −3.0% 1,812,764 $508.10 $921M −56,050 −$10M
V - VISA · CL A 4.57% Reduce −3.0% 2,012,972 $350.46 $705M −62,223 +$50M
GOOGL - Alphabet · CL A 4.36% Reduce −3.0% 4,352,428 $154.64 $673M −134,610 −$176M
CBRE - CBRE Group · CL A 3.90% Reduce −3.0% 4,605,765 $130.78 $602M −142,621 −$21M
ICE - Intercontinental Exchange 3.85% Reduce −3.0% 3,446,696 $172.50 $595M −106,604 +$65M
IBKR - Interactive Brokers · CL A 3.53% Reduce −3.0% 3,293,826 $165.59 $545M −101,864 −$54M
FLUT - Flutter Entmt 3.35% Reduce −3.0% 2,337,798 $221.55 $518M −72,380 −$105M
AON - AON PLC · CL A 3.32% Reduce −3.0% 1,283,548 $399.09 $512M −39,680 +$37M
MSFT - Microsoft 3.17% Reduce −3.0% 1,303,090 $375.39 $489M −40,310 −$77M
TSM - Taiwan Semiconductor Mfg 3.14% Reduce −3.0% 2,921,336 $166.00 $485M −90,328 −$110M
ADI - Analog Devices 2.92% Reduce −3.0% 2,239,461 $201.67 $452M −69,817 −$39M
TMO - Thermo Fisher Scientific 2.91% Reduce −3.0% 901,773 $497.60 $449M −28,097 −$35M
AMAT - Applied Matls 2.89% Reduce −3.0% 3,070,430 $145.12 $446M −94,972 −$69M
BLK - Blackrock 2.87% Reduce −3.3% 467,854 $946.48 $443M −15,939 −$53M
EFX - Equifax 2.81% Reduce −3.0% 1,780,067 $243.56 $434M −55,035 −$34M
CME - CME Group 2.79% Reduce −3.0% 1,624,206 $265.29 $431M −50,232 +$42M
AMT - American Tower 2.66% Reduce −3.0% 1,889,190 $217.60 $411M −58,405 +$54M
UBER - UBER Technologies 2.50% Add +31.3% 5,308,459 $72.86 $387M +1,264,215 +$143M
LYV - Live Nation 2.44% Reduce −3.0% 2,888,072 $130.58 $377M −89,339 −$8M
A - Agilent Technologies 2.44% Reduce −3.0% 3,217,069 $116.98 $376M −99,488 −$69M
FAST - Fastenal 2.40% Reduce −3.0% 4,784,048 $77.55 $371M −147,880 +$16M
SSNC - SS&C Technologies 2.38% Reduce −3.0% 4,397,147 $83.53 $367M −135,934 +$24M
IQV - IQVIA 2.29% Reduce −3.0% 2,004,434 $176.30 $353M −61,710 −$53M
FERG - Ferguson Enterprises 2.13% Reduce −2.9% 2,049,411 $160.23 $328M −62,262 −$38M
ADBE - Adobe 1.98% Add +29.6% 796,886 $383.53 $306M +182,024 +$32M
YUM - Yum Brands 1.86% Reduce −3.0% 1,824,564 $157.36 $287M −55,815 +$35M
ECL - Ecolab 1.85% Reduce −3.0% 1,127,076 $253.52 $286M −34,870 +$13M
TME - Tencent Music Entmt Group 1.80% Reduce −11.9% 19,240,319 $14.41 $277M −2,600,496 +$29M
CP - Canadian Pacific 1.64% Reduce −3.0% 3,613,392 $70.21 $254M −111,631 −$16M
TCOM - Trip Group 1.47% Reduce −24.7% 3,576,813 $63.58 $227M −1,171,953 −$99M
ENTG - Entegris 1.44% Reduce −3.0% 2,538,175 $87.48 $222M −78,179 −$37M
MCO - Moodys 1.39% Reduce −3.0% 459,857 $465.69 $214M −14,225 −$10M
ZTS - Zoetis · CL A 1.34% Reduce −3.0% 1,254,465 $164.65 $207M −38,786 −$4M
TW - Tradeweb Mkts · CL A 1.12% Reduce −3.0% 1,163,200 $148.46 $173M −35,978 +$16M
ALC - Alcon AG 0.90% New 1,464,533 $94.93 $139M +1,464,533 +$139M
ORCL - Oracle 0.80% Reduce −3.1% 888,795 $139.81 $124M −28,720 −$29M

* 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 Q4. Click column headers to sort · click New / Hold / Add / Reduce to promote that move type to the top.

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