William Von Mueffling - Cantillon Capital Management Portfolio (Q1 2026)
Cantillon Capital Management, William Von Mueffling, has built a diversified portfolio of 38 publicly traded holdings with a total market value of $15.1B as of Mar 31, 2026. This comprehensive analysis examines the latest 13F filing data to understand the investment strategy and recent portfolio adjustments.
The portfolio demonstrates a diversified approach to stock selection, with the top holding representing 8.3% of the total portfolio value. The top 5 holdings account for 30.4% of the overall portfolio allocation.
Recent portfolio activity shows 10 significant position adjustments, indicating active portfolio management and strategic repositioning. These changes reflect the investor's response to market conditions and evolving investment thesis.
Portfolio Statistics
Top Holdings Analysis
The portfolio's top holdings reveal the investor's core investment thesis and sector preferences. The largest position in BROADCOM INC (AVGO) represents 8.3% of the total portfolio, valued at $1.3B.
| Rank | Symbol | Company | Value | Portfolio % | Change |
|---|---|---|---|---|---|
| 1 | AVGO | BROADCOM INC | $1.3B | 8.3% | -11.9% |
| 2 | GOOGL | ALPHABET INC | $1.1B | 7.1% | -11.9% |
| 3 | TSM | TAIWAN SEMICONDUCTOR MANUFAC | $842.7M | 5.6% | -11.9% |
| 4 | IBKR | INTERACTIVE BROKERS GROUP IN | $754.3M | 5.0% | -11.9% |
| 5 | SPGI | S&P GLOBAL INC | $658.1M | 4.4% | -11.9% |
For a complete analysis of all holdings and detailed portfolio breakdown by sector and market cap, visit our comprehensive holdings page.
Recent Portfolio Activity
Recent portfolio adjustments provide insights into the investor's evolving strategy and market outlook.
The following table shows the top 10 most significant position changes from
recent reporting periods (out of 190 total transactions), sorted by the magnitude of
change.
For a complete history of all portfolio transactions and detailed activity analysis,
visit our comprehensive
activity page.
| Symbol | Company | Quantity Change | Date | Action |
|---|---|---|---|---|
| TME | Tencent Music Entertainment Gro | -5,325,907 | Mar 31, 2026 | SELL |
| IBKR | Interactive Brokers Group, Inc. | -1,514,023 | Mar 31, 2026 | SELL |
| AMAT | Applied Materials, Inc. | -1,451,818 | Mar 31, 2026 | SELL |
| FAST | Fastenal Company | -1,100,224 | Mar 31, 2026 | SELL |
| FLUT | Flutter Entertainment | -888,249 | Mar 31, 2026 | SELL |
| FWONK | Liberty Media Corporation - Ser | -671,214 | Mar 31, 2026 | SELL |
| AVGO | Broadcom Inc. | -548,299 | Mar 31, 2026 | SELL |
| CBRE | CBRE Group Inc | -528,610 | Mar 31, 2026 | SELL |
| SSNC | SS&C Technologies Holdings, Inc | -505,400 | Mar 31, 2026 | SELL |
| GOOGL | Alphabet Inc. | -500,173 | Mar 31, 2026 | SELL |
Investment Strategy Insights
Cantillon Capital Management's investment approach can be analyzed through several key metrics. The portfolio's concentration in top holdings suggests a diversified investment strategy, with significant positions in companies that align with the investor's long-term thesis.
The largest position in BROADCOM INC (AVGO) demonstrates strong conviction in this particular investment opportunity. Recent activity shows a decrease of 11.9% in this position, indicating active portfolio management and strategic positioning.
Portfolio turnover can be assessed through recent activity patterns. The 10 most significant transactions shown here (out of 190 total transactions) suggest a highly active approach to portfolio management, with frequent strategic adjustments and position changes.
Additional Analysis
Complete Holdings
View all 38 holdings with detailed analysis
Trading Activity
Track all portfolio transactions and position changes
Performance Metrics
Analyze profit, winning trades, and investment returns
Sector Allocation
Analyze portfolio breakdown by sector and industry
Cantillon Capital Management's portfolio as of Mar 31, 2026 reflects a strategic approach to equity investing with 38 holdings valued at $15.1B. The concentrated position in BROADCOM INC and other top holdings demonstrates the investor's confidence in specific investment themes and long-term value creation opportunities. Recent activity indicates ongoing portfolio optimization and strategic repositioning.
For the most current portfolio data and detailed analysis, refer to the latest SEC 13F filings and our comprehensive holdings and activity pages, which are updated regularly with the latest filing information.
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