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THOMPSON INVESTMENT MANAGEMENT, INC.

Location
MADISON, WI
Portfolio Value
Small $734,158,012
Diversification
Diversified
Filing Date
Global Rank
#2,109 / 8,607 ▲ 9 · as of Mar 2026
Top Industry
Internet Content & Information 7.2%
3Y Alpha vs SPY
+0.5%
Period ended 3 months ago
Filed Apr 8, 2026 · 3mo
25 quarters · since Mar 2020

Clone Performance

Jul 2023–Jul 2026 · vs SPY

Hypothetical growth of cloning every reported 13F position and rebalancing on each filing, indexed to the same start.

Cloned portfolio
+76.4%
SPY
+75.5%
Annualised alpha
+0.2%
Max drawdown
−19.4%

Estimate. 13F holdings are quarter-lagged and long-only, so the clone rebalances about 45 days after each period end — when the filing becomes public — and excludes options and short positions. Past performance does not predict future results.

Portfolio Concentration

341 positions · as of Mar 31, 2026 · Δ vs Dec 31, 2025
Top Position
5.6%
−0.4 pts
Top 5
17.0%
−2.3 pts
Top 10
26.0%
−2.8 pts
HHI
154
Jun 2023 → Mar 2026 · range 149 – 171
Diversified−17

Portfolio Trend

25 quarters · across all stocks

Sector Breakdown

As of Mar 31, 2026
Sector % Portfolio Value
Technology 21.8% $160,119,787
Healthcare 17.0% $124,796,145
Financial Services 16.6% $121,833,860
Communication Services 10.4% $76,046,359
Consumer Defensive 8.8% $64,281,282
Industrials 8.1% $59,580,343
Consumer Cyclical 5.6% $41,099,713
Energy 5.2% $38,156,526
Real Estate 2.4% $17,444,421
Utilities 2.2% $15,874,251
Basic Materials 1.1% $8,281,402
Unclassified 0.9% $6,643,923

Last Quarter's Activity

Export CSV
Mar 31, 2026 vs Dec 31, 2025

Added To

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

Trimmed

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

New Positions

Positions the filer opened this quarter
11 positions
Ticker Shares Value Open

Sold Out

Positions the filer fully exited
25 positions
Ticker Shares Value Open

Portfolio Positions

Export CSV View 13F filing
341 positions · $734,158,012 total · as of Mar 31, 2026
Showing 1–50 of 341 positions by value · page 1 of 7
Ticker Company Shares Value (USD) % of Portfolio History