Seilern Investment Management Ltd
In its 13F for Q1 2025 (holdings as of March 31, 2025, filed April 14, 2025), Seilern Investment Management Ltd reported 23 stock positions worth $1.5 billion. Its top holding was Mastercard Class A (MA) at 10.0% of the portfolio, followed by Unitedhealth (UNH, 9.0%) and Microsoft (MSFT, 8.9%). Compared with Q4 2024, it opened 2 new positions, added to 2 and reduced 19. The biggest buy was a new position in Cadence Design SYS (CDNS) and the biggest sale West Pharmaceutical Services (WST, shares −1%).
- Most Recent 13F
- Q2 2026
- Location
- LONDON, X0
- CIK
- 0001817797
- Portfolio Value
- $1.5B (Q1 2025)
- SEC Filing
- 0001817797-25-000006 ↗ filed Apr 14, 2025
Holdings Value
Holdings 23 stocks · $1.5B
| MA Mastercard Inc. Class A | 9.99% | 278,711 | $152.8M | Reduce -20.2% |
| UNH Unitedhealth Group Inc. | 9.01% | 263,098 | $137.8M | Reduce -13.0% |
| MSFT Microsoft Corp. | 8.93% | 363,755 | $136.5M | Reduce -12.0% |
| IDXX Idexx Laboratories Inc. | 7.30% | 265,949 | $111.7M | Reduce -2.8% |
| EW Edwards Lifesciences Corp. | 6.49% | 1,369,459 | $99.3M | Reduce -7.4% |
| WST West Pharmaceutical Services | 6.46% | 441,357 | $98.8M | Reduce -0.6% |
| VEEV Veeva Systems Inc. Class A | 6.36% | 419,758 | $97.2M | Reduce -7.1% |
| ADBE Adobe Inc. | 6.29% | 250,794 | $96.2M | Add +0.7% |
| GOOGL Alphabet Inc. Class A | 5.80% | 573,507 | $88.7M | Reduce -1.9% |
| TYL Tyler Technologies Inc. | 5.69% | 149,681 | $87.0M | Reduce -18.2% |
| MTD Mettler-Toledo International | 5.27% | 68,233 | $80.6M | Reduce -6.4% |
| NKE Nike Inc. Class B | 4.78% | 1,152,119 | $73.1M | Reduce -14.1% |
| ACN Accenture PLC Class A | 4.38% | 214,794 | $67.0M | Reduce -24.4% |
| CDNS Cadence Design SYS Inc. | 4.24% | 254,788 | $64.8M | New |
| ISRG Intuitive Surgical Inc. | 4.11% | 126,817 | $62.8M | Reduce -19.8% |
| ADP Automatic Data Processing | 0.82% | 41,131 | $12.6M | Reduce -12.8% |
| BKNG Booking Holdings Inc. | 0.76% | 2,540 | $11.7M | Reduce -4.8% |
| ZTS Zoetis Inc. | 0.65% | 59,949 | $9.9M | Add +2.3% |
| V Visa Inc. Class A | 0.56% | 24,340 | $8.5M | Reduce -39.0% |
| GGG Graco Inc. | 0.55% | 101,116 | $8.4M | Reduce -17.9% |
| MCO Moody's Corp. | 0.55% | 18,019 | $8.4M | Reduce -19.1% |
| ADSK Autodesk Inc. | 0.53% | 30,977 | $8.1M | New |
| CME Cme Group Inc. | 0.51% | 29,524 | $7.8M | Reduce -34.7% |
Portfolio Sells Q4 2024 → Q1 2025
| WST West Pharmaceutical Services | Reduce -0.6% | 6.46% | −1.82 |
| ACN Accenture PLC Class A | Reduce -24.4% | 4.38% | −1.31 |
| MSFT Microsoft Corp. | Reduce -12.0% | 8.93% | −1.00 |
| NKE Nike Inc. Class B | Reduce -14.1% | 4.78% | −1.00 |
| ISRG Intuitive Surgical Inc. | Reduce -19.8% | 4.11% | −0.60 |
| GOOGL Alphabet Inc. Class A | Reduce -1.9% | 5.80% | −0.51 |
| MA Mastercard Inc. Class A | Reduce -20.2% | 9.99% | −0.50 |
| TYL Tyler Technologies Inc. | Reduce -18.2% | 5.69% | −0.33 |
| V Visa Inc. Class A | Reduce -39.0% | 0.56% | −0.16 |
| CME Cme Group Inc. | Reduce -34.7% | 0.51% | −0.09 |
| MCO Moody's Corp. | Reduce -19.1% | 0.55% | −0.05 |
| GGG Graco Inc. | Reduce -17.9% | 0.55% | −0.04 |
| BKNG Booking Holdings Inc. | Reduce -4.8% | 0.76% | +0.01 |
| ADP Automatic Data Processing | Reduce -12.8% | 0.82% | +0.03 |
| MTD Mettler-Toledo International | Reduce -6.4% | 5.27% | +0.18 |
| EW Edwards Lifesciences Corp. | Reduce -7.4% | 6.49% | +0.25 |
| UNH Unitedhealth Group Inc. | Reduce -13.0% | 9.01% | +0.29 |
| IDXX Idexx Laboratories Inc. | Reduce -2.8% | 7.30% | +0.86 |
| VEEV Veeva Systems Inc. Class A | Reduce -7.1% | 6.36% | +0.94 |
Portfolio Buys Q4 2024 → Q1 2025
All Filings
| Quarter | Positions | 13F Reported Value | Top Holdings |
|---|---|---|---|
| Q2 2026 | 24 | $793.8M | MA, UNH, VEEV, EW, IDXX |
| Q1 2026 | 24 | $838.5M | MA, UNH, TYL, WST, VEEV |
| Q4 2025 | 24 | $1.3B | MA, UNH, MSFT, GOOGL, ADBE |
| Q3 2025 | 22 | $1.4B | UNH, MSFT, MA, GOOGL, IDXX |
| Q2 2025 | 22 | $1.5B | MSFT, MA, UNH, IDXX, EW |
| Q1 2025 | 23 | $1.5B | MA, UNH, MSFT, IDXX, EW |
| Q4 2024 | 21 | $1.8B | MA, MSFT, UNH, WST, IDXX |