William von Mueffling Cantillon Capital Management
William von Mueffling is the founder of Cantillon Capital Management, a firm known for concentrated global equity portfolios of high-quality companies. Cantillon’s process emphasizes durable competitive advantages and multi-year holding periods. The firm’s 13F disclosures are tracked by investors seeking institutional quality-growth exposure.
Top Buys
| Rank | Stock | Value |
|---|---|---|
| 1 |
Spotify
SPOT
|
+$220M |
| 2 |
Oracle
ORCL
|
+$68.7M |
| 3 |
Equifax
EFX
|
+$13.4M |
| 4 |
Canadian Pacific Kansas City
CP
|
+$10.8M |
| 5 |
Uber
UBER
|
+$4.09M |
Top Sells
| Rank | Stock | Value |
|---|---|---|
| 1 |
Applied Materials
AMAT
|
+$488M |
| 2 |
Broadcom
AVGO
|
+$180M |
| 3 |
Alphabet (Google) Class A
GOOGL
|
+$157M |
| 4 |
Flutter Entertainment
FLUT
|
+$128M |
| 5 |
TSMC
TSM
|
+$116M |
Sector Composition
| Rank | Sector | Weight |
|---|---|---|
| 1 | Technology | 32.93% |
| 2 | Financials | 27.51% |
| 3 | Communication Services | 12.42% |
| 4 | Industrials | 9.64% |
| 5 | Healthcare | 7.79% |
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William von Mueffling's Q1 2026 Portfolio in Review
As of Q1 2026, William von Mueffling held 38 positions worth $15.1B, down 19% from $18.5B the previous quarter. Its ten largest holdings account for 48% of the portfolio.
William von Mueffling withdrew a net $2.23B in Q1 2026, reducing 33 holdings. Its largest reduction was Applied Materials, cutting an estimated $488M.
By sector, the portfolio is most concentrated in Technology at 33% of assets, up from 32% a quarter earlier, followed by Financials and Communication Services.
Against the trend, William von Mueffling opened a new position in Spotify worth $213M.
- William von Mueffling's largest Q1 2026 buy was Spotify: 439,353 shares worth $213M.
- William von Mueffling added most to Oracle in Q1 2026, an estimated $68.7M increase.
- William von Mueffling's biggest Q1 2026 reduction was Applied Materials, cutting an estimated $488M.
- William von Mueffling's ten largest holdings make up 48% of its $15.1B portfolio in Q1 2026.
- William von Mueffling opened 1 new position and closed 0 in Q1 2026.
- William von Mueffling's portfolio value fell 19% quarter-over-quarter to $15.1B.
Based on Cantillon Capital Management's 13F filing for Q1 2026, filed 7 May 2026.