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Seilern Investment Management Ltd

Location
LONDON, X0
Portfolio Value
Small $793,816,547
Diversification
Diversified
Filing Date
Global Rank
#2,207 / 8,650 ▼ 187
Top Industry
Software - Application 22.2%
3Y Alpha vs SPY
-8.0%
Period ended 53 days ago
Filed Jul 8, 2026 · 45d
7 quarters · since Dec 2024

Clone Performance

Feb 2025–Aug 2026 · vs SPY

Hypothetical growth of buying every stock this filer reported holding, rebalancing on each filing and indexed to the same start. Option positions cannot be bought this way and are left out.

Cloned portfolio
+16.8%
SPY
+25.6%
Annualised alpha
-5.5%
Max drawdown
−20.5%

Estimate. 13F holdings are quarter-lagged, so the clone rebalances about 45 days after each period end — when the filing becomes public — and it excludes option and short positions. Returns use comparable raw closes and exclude dividends; a captured split can shorten the simulated window. It tracks 100% of reported value on average across 7 quarters. Past performance does not predict future results.

Portfolio Concentration

24 tracked positions · as of Jun 30, 2026 · Δ vs Mar 31, 2026
Top Position
11.0%
+0.4 pts
Top 5
39.7%
−0.8 pts
Top 10
69.2%
−1.3 pts
HHI
633
Dec 2024 → Jun 2026 · range 616 – 696
Diversified−16

Portfolio Trend

7 quarters · across all stocks

Sector Breakdown

As of Jun 30, 2026
Sector % Portfolio Value
Healthcare 48.4% $384,021,126
Technology 30.2% $239,890,944
Financial Services 11.8% $93,362,911
Communication Services 5.5% $43,394,009
Industrials 3.9% $30,944,868
Consumer Cyclical 0.3% $2,202,689

Last Quarter's Activity

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Jun 30, 2026 vs Mar 31, 2026

Added To

Positions the filer increased
8 positions
Ticker Δ Shares Shares Value Open

Trimmed

Positions the filer reduced
16 positions
Ticker Δ Shares Shares Value Open

New Positions

Positions the filer opened this quarter
No qualifying positions this quarter.

Sold Out

Positions the filer fully exited
No qualifying positions this quarter.

Portfolio Positions

Export CSV View 13F filing
24 tracked positions · $793,816,547 total · as of Jun 30, 2026
Ticker Company Shares Value (USD) % of Portfolio History

Covers the securities this platform tracks: U.S.-listed common stock and the put/call positions reported on it. A 13F can also report security types outside that coverage — preferred shares, bonds, warrants, untracked share classes — so the filing's own declared total can exceed the figures above. The source filing is linked at the top of this table.