13F portfolio / Long-term, concentrated
Cantillon Capital
William von Mueffling (president)
William von Mueffling is the president of Cantillon Capital Management.
He was previously a managing director at Lazard Asset Management.
The firm is based in New York, NY, according to its SEC filings.
Its earliest 13F holdings report on SEC EDGAR was filed in February 2004.
- Reported 13F value
- $665M
- Positions
- 27
- Est. 1-yearEstimate
- +4.9%SPY +15.7%
- Est. 3-year, annualizedEstimate
- +19.5%SPY +22.8%
As of Jun 30, 2026 · filed Jul 29, 2026
Holdings
0 new · 0 added · 27 trimmed · 0 unchanged · 11 sold out
| 1 | AVGO on Yahoo Finance (opens in a new tab) | Broadcom IncCOM | 10.6% | $71M | 186,760 | Trimmed -95.4% | $149.36* | $332.05 | +122.3% |
| 2 | GOOGL on Yahoo Finance (opens in a new tab) | Alphabet IncCAP STK CL A | 9.2% | $61M | 171,066 | Trimmed -95.4% | $135.40* | $341.57 | +152.3% |
| 3 | TSM on Yahoo Finance (opens in a new tab) | Taiwan Semiconductor ManufacSPONSORED ADS | 8.2% | $55M | 114,820 | Trimmed -95.4% | $87.25* | $413.04 | +373.4% |
| 4 | IBKR on Yahoo Finance (opens in a new tab) | Interactive Brokers Group InCOM CL A | 6.8% | $45M | 517,833 | Trimmed -95.4% | $40.98* | $82.84 | +102.2% |
| 5 | AMAT on Yahoo Finance (opens in a new tab) | Applied Matls IncCOM | 5.5% | $36M | 50,176 | Trimmed -96.7% | $139.83* | $416.19 | +197.6% |
| 6 | ADI on Yahoo Finance (opens in a new tab) | Analog Devices IncCOM | 5.3% | $35M | 88,014 | Trimmed -95.4% | $169.97* | $399.04 | +134.8% |
| 7 | SPGI on Yahoo Finance (opens in a new tab) | S&P Global IncCOM | 4.4% | $29M | 71,249 | Trimmed -95.4% | $355.09* | $426.66 | +20.2% |
| 8 | V on Yahoo Finance (opens in a new tab) | Visa IncCOM CL A | 4.3% | $29M | 83,643 | Trimmed -95.1% | $236.41* | $400.91 | +69.6% |
| 9 | MSFT on Yahoo Finance (opens in a new tab) | Microsoft CorpCOM | 3.9% | $26M | 68,901 | Trimmed -93.8% | $320.46* | $526.88 | +64.4% |
| 10 | CBRE on Yahoo Finance (opens in a new tab) | CBRE Group IncCL A | 3.7% | $24M | 181,083 | Trimmed -95.4% | $80.17* | $132.27 | +65.0% |
| 11 | LYV on Yahoo Finance (opens in a new tab) | Live Nation Entertainment InCOM | 3.1% | $21M | 113,503 | Trimmed -95.4% | $86.50* | $169.09 | +95.5% |
| 12 | BLK on Yahoo Finance (opens in a new tab) | BlackRock IncCOM | 3.0% | $20M | 20,873 | Trimmed -95.4% | $970.48 | $1125.74 | +16.0% |
| 13 | FERG on Yahoo Finance (opens in a new tab) | Ferguson Enterprises IncCOMMON STOCK NEW | 2.9% | $19M | 80,548 | Trimmed -95.4% | $195.03 | $230.19 | +18.0% |
| 14 | FAST on Yahoo Finance (opens in a new tab) | Fastenal CoCOM | 2.7% | $18M | 376,044 | Trimmed -95.4% | $32.42* | $50.56 | +55.9% |
| 15 | ENTG on Yahoo Finance (opens in a new tab) | Entegris IncCOM | 2.7% | $18M | 99,756 | Trimmed -95.4% | $94.17* | $141.39 | +50.1% |
| 16 | CP on Yahoo Finance (opens in a new tab) | Canadian Pacific Kansas CityCOM | 2.6% | $17M | 199,860 | Trimmed -95.4% | $76.73* | $86.99 | +13.4% |
| 17 | UBER on Yahoo Finance (opens in a new tab) | Uber Technologies IncCOM | 2.6% | $17M | 238,965 | Trimmed -95.4% | $70.60 | $69.99 | -0.9% |
| 18 | A on Yahoo Finance (opens in a new tab) | Agilent Technologies IncCOM | 2.5% | $17M | 126,437 | Trimmed -95.4% | $111.36* | $172.32 | +54.7% |
| 19 | ICE on Yahoo Finance (opens in a new tab) | Intercontinental Exchange InCOM | 2.5% | $17M | 135,468 | Trimmed -95.4% | $109.79* | $159.40 | +45.2% |
| 20 | ORCL on Yahoo Finance (opens in a new tab) | Oracle CorpCOM | 2.3% | $15M | 105,457 | Trimmed -91.8% | $128.16 | $128.49 | +0.3% |
| 21 | CME on Yahoo Finance (opens in a new tab) | CME Group IncCOM | 2.1% | $14M | 63,835 | Trimmed -95.4% | $180.16* | $292.27 | +62.2% |
| 22 | YUM on Yahoo Finance (opens in a new tab) | Yum Brands IncCOM | 2.0% | $13M | 83,427 | Trimmed -95.4% | $129.52 | $149.82 | +15.7% |
| 23 | TW on Yahoo Finance (opens in a new tab) | Tradeweb Mkts IncCL A | 1.6% | $11M | 108,989 | Trimmed -95.4% | $103.18* | $112.82 | +9.3% |
| 24 | SSNC on Yahoo Finance (opens in a new tab) | SS&C Tech HldgsCOM | 1.6% | $11M | 172,816 | Trimmed -95.4% | $52.81* | $83.79 | +58.7% |
| 25 | SPOT on Yahoo Finance (opens in a new tab) | Spotify Technology S ASHS | 1.4% | $9M | 20,216 | Trimmed -95.4% | $501.86 | $523.14 | +4.2% |
| 26 | TCOM on Yahoo Finance (opens in a new tab) | Trip Com Group LtdADS | 1.3% | $9M | 214,242 | Trimmed -95.3% | $53.30 | $40.08 | -24.8% |
| 27 | MCO on Yahoo Finance (opens in a new tab) | Moody's CorpCOM | 1.2% | $8M | 18,075 | Trimmed -95.4% | $327.38* | $481.11 | +47.0% |
Sold out since Q1 2026
- TMO on Yahoo Finance (opens in a new tab)Thermo Fisher Scientific Inc$378M at Q1 2026
- AON on Yahoo Finance (opens in a new tab)Aon PLC$354M at Q1 2026
- EFX on Yahoo Finance (opens in a new tab)Equifax Inc$323M at Q1 2026
- IQV on Yahoo Finance (opens in a new tab)IQVIA Hldgs Inc$292M at Q1 2026
- AMT on Yahoo Finance (opens in a new tab)American Tower Corp$278M at Q1 2026
- ADBE on Yahoo Finance (opens in a new tab)Adobe Inc$248M at Q1 2026
- ALC on Yahoo Finance (opens in a new tab)Alcon AG$189M at Q1 2026
- FLUT on Yahoo Finance (opens in a new tab)Flutter Entmt PLC$140M at Q1 2026
- TME on Yahoo Finance (opens in a new tab)Tencent Music Entmt Group$124M at Q1 2026
- LPLA on Yahoo Finance (opens in a new tab)LPL Finl Hldgs Inc$98M at Q1 2026
- FWONK on Yahoo Finance (opens in a new tab)Liberty Media Corp Del$88M at Q1 2026
Estimated, from reported holdings
Quarter by quarter
High-conviction buys (new positions at 3% or more of the portfolio) since Q3 2023: 0. Of 0 with six months of history, — beat the S&P 500 from the filing date.
Source: SEC Form 13F-HR 0001279936-26-000005, compared with the Q1 2026 report. 0 option rows are excluded from weights. Tickers map from CUSIP via OpenFIGI. Estimated returns weight each position’s next-quarter total return (Yahoo Finance adjusted closes) by its quarter-end value and assume no trades. Estimated cost averages daily adjusted closes in each quarter the share count rose, from Q3 2023 onward (* = held at the start of our data). Price is the latest close.
Important information
Form 13F data is delayed. Managers have up to 45 days after each calendar quarter to file, so holdings shown may have changed materially since the report date. 13F reports cover long positions in US-listed equities and certain other securities only; they exclude short positions, most non-US holdings, cash, bonds and private investments, and managers may request confidential treatment for some positions. Options rows are listed in filings but are not counted in the holdings and weights shown here.
Estimated holdings returns, estimated cost and high-conviction results are hypothetical calculations from quarter-end holdings and public prices, assuming no trades between reports. They are not the actual returns or costs of any fund or manager and do not reflect fees, trading, leverage, shorts or cash. Biographies are drawn from cited public sources. This page is for information only and is not individualized investment advice or a recommendation to buy or sell any security. Gulfstream Capital and its clients may hold positions in securities shown.