Seilern Investment Management Ltd
Sector Allocation
- Technology44.0%$339.5M
- Healthcare40.4%$311.3M
- Financials11.0%$84.8M
- Consumer Discretionary4.5%$34.5M
- Industrials0.2%$1.2M
AUM History
13fpro.ai/research/fund/seilern-investment-management-ltd-1817797
Conviction and streaks
Diversifying · top 10 = 68.0%From the fund's last 12 quarters of 13F filings: positions held longest at size, and names it added to or trimmed several quarters running.
Largest positions — Q3 2026
MA
$78.8MISRG
$54.5MTYL
$54.1MVEEV
$51.0MEW
$50.9MIDXX
$50.4MUNH
$48.1MMSFT
$47.3MWST
$44.8MCDNS
$44.4MADSK
$43.1MGOOGL
$41.1MADBE
$32.9MCPRT
$32.4MZTS
$31.7MMTD
$30.9MACN
$23.9MBKNG
$2.0MTW
$1.9MV
$1.7M
Top 20 stock positions. Options are left out: 13F reports them at the underlying's value.
13fpro.ai/research/fund/seilern-investment-management-ltd-1817797
Seilern Investment Management Ltd 13F holdings — Q3 2026
$771.3M portfolio (-2.8% QoQ) · 24 holdings · Q3 2026 13F · top 10 are 68% of the stock portfolio
$78.8M
10.2% of stocks
-16%This quarter+1.4%Since filed8+ qtrsHeld$54.5M
7.1% of stocks
+16%This quarter+7.0%Since filed8+ qtrsHeld$54.1M
7.0% of stocks
-2%This quarter+11.4%Since filed8+ qtrsHeldAIQuality64.8#513Est. buyEstimated buy price is Pro: unlock with a free trialTrimmed 2 qtrs in a row$51.0M
6.6% of stocks
-44%This quarter+5.5%Since filed8+ qtrsHeld$50.9M
6.6% of stocks
-2%This quarter+6.2%Since filed8+ qtrsHeldAIQuality69.6#240Est. buyEstimated buy price is Pro: unlock with a free trialTrimmed 7 qtrs in a row$50.4M
6.5% of stocks
-1%This quarter+9.6%Since filed8+ qtrsHeld$48.1M
6.2% of stocks
-18%This quarter+8.7%Since filed8+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialTrimmed 5 qtrs in a row$47.3M
6.1% of stocks
-20%This quarter-2.0%Since filed8+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialTrimmed 7 qtrs in a row$44.8M
5.8% of stocks
-13%This quarter+6.2%Since filed8+ qtrsHeldAIQualityAI quality score is Pro: unlock with a free trialEst. buyEstimated buy price is Pro: unlock with a free trialTrimmed 6 qtrs in a row$44.4M
5.8% of stocks
+18%This quarter-3.6%Since filed7 qtrsHeld
All holdings — Seilern Investment Management Ltd (Q3 2026)
24 disclosed positions from the Form 13F-HR on SEC EDGAR, with quarter-over-quarter share changes. Largest by value first; the ten above are not repeated.
| # | Company | Held | Source | |||||||
|---|---|---|---|---|---|---|---|---|---|---|
| 11 | Autodesk, Inc. | Technology | $43.1M | 5.6% | 206K | -9% | 7 qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 12 | Alphabet Inc. | Technology | $41.1M | 5.3% | 120K | -2% | 8+ qtrsTrimmed 7 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 13 | ADOBE INC. | Technology | $32.9M | 4.3% | 137K | -24% | 8+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 14 | COPART INC | Consumer Discretionary | $32.4M | 4.2% | 1.19M | +13% | 4 qtrsAdded 2 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 15 | Zoetis Inc. | Healthcare | $31.7M | 4.1% | 455K | -1% | 8+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 16 | METTLER TOLEDO INTERNATIONAL INC/ | Healthcare | $30.9M | 4.0% | 20K | -3% | 8+ qtrsTrimmed 7 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 17 | Accenture plc | Technology | $23.9M | 3.1% | 130K | -20% | 8+ qtrsTrimmed 3 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 18 | Booking Holdings Inc. | Consumer Discretionary | $2.0M | 0.3% | 12K | +0.8% | 8+ qtrs | AI quality score is Pro: unlock with a free trial | 13F | |
| 19 | Tradeweb Markets Inc. | Financials | $1.9M | 0.3% | 19K | -2% | 4 qtrsTrimmed 3 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 20 | VISA INC. | Financials | $1.7M | 0.2% | 4,737 | -16% | 8+ qtrsTrimmed 4 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 21 | AUTOMATIC DATA PROCESSING INC | Technology | $1.7M | 0.2% | 6,418 | -24% | 8+ qtrsTrimmed 4 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 22 | MOODYS CORP /DE/ | Financials | $1.5M | 0.2% | 3,219 | -11% | 8+ qtrsTrimmed 7 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 23 | GRACO INC | Industrials | $1.2M | 0.2% | 16K | -4% | 8+ qtrsTrimmed 4 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F | |
| 24 | CME GROUP INC. | Financials | $956K | 0.1% | 3,651 | -4% | 8+ qtrsTrimmed 4 qtrs in a row | AI quality score is Pro: unlock with a free trial | 13F |
What changed in Q3 2026
Against the previous quarter's 13F: 0 new, 4 added to, 20 trimmed, 0 sold out. Share-count changes; largest moves by dollar size first.
New positions (0)
No new positions this quarter.
Added to (4)
Trimmed (20)
now $51.0M · held 8+ qtrs
now $78.8M · held 8+ qtrs, 7 trims in a row
now $47.3M · held 8+ qtrs, 7 trims in a row
now $48.1M · held 8+ qtrs, 5 trims in a row
now $32.9M · held 8+ qtrs
now $44.8M · held 8+ qtrs, 6 trims in a row
+14 more in the Excel export
Sold out (0)
No positions sold out this quarter.
Holdings by quarter
Every 13F Seilern Investment Management Ltd has filed, 7 earlier quarters. Pick one to see what it held then.
Is it too late to follow Seilern Investment Management Ltd?
Q3 2026 13F filed with the SEC on Oct 13, 2026. Prices are closing prices as of Oct 26, 2026.
Average quality of Seilern Investment Management Ltd's top 20 holdings: 74/100 (our AI quality score, weighted by position size; 19 of the 20 are scored)
Top 10 since filing
+5.0%
Value-weighted move of the 10 largest stock positions
Turnover
2%
Last quarter; 19% over the last 4
Top 10 weight
68%
Share of the stock portfolio in its 10 largest positions
Held 4+ quarters
100%
Share of portfolio value in positions held a year or more
Highest-quality names it owns(among its 100 largest positions)
The 8 highest-scoring companies in this portfolio are a Pro feature.
How these are measured
- Moves since the quarter-end and since the filing date use our own daily closing prices, from the close on (or just before) each date to the latest close.
- Turnover is the lesser of shares bought or sold in a quarter, valued at the quarter-end prices in the 13F, divided by the average of the two quarters' stock portfolio values.
- Quarters held and add/trim streaks count back only through quarters whose filed holdings add up to the filing's own cover-page total (back to Q4 2024 for this fund). A change counts as an add or a trim when the split-adjusted share count moves by more than 1%.
- Estimate, not the fund's reported cost. For each quarter in the current holding period in which the fund's share count rose (split-adjusted), we take that quarter's average daily close and weight it by the shares added; sales do not change an average cost. Quarters where the stock's price history and the 13F's own implied price disagree by more than 2x are left out.
- Put and call option rows report the value of the underlying shares, not a position the fund paid for, so they are left out of all of the above.
Portfolio Overview
Seilern Investment Management Ltd disclosed 24 positions worth $771.3M in its Form 13F-HR for Q3 2026, led by $MA (Mastercard Inc) at 10.2% of the equity portfolio, followed by $ISRG and $TYL. The portfolio is most concentrated in Technology (44.0% of disclosed assets). All figures are sourced directly from Seilern Investment Management Ltd’s Form 13F-HR filing with the SEC under CIK 1817797.
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