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White Mtns Ins Group Ltd

USA Unknown Filing: 2026-03-31
28/100
Smart-money confidence1 of 3 sources positive
Weak — few signals

No standout activity across the feeds we track.

Hedge funds
38
Congress
No data
Insiders
No data
Cross-source blend of hedge-fund breadth, Congress trades, and insider Form 4s.  ·  how the score works
Who's behind the signal
Every informed buyer we can see on WHITE MTNS INS GROUP LTD, across all three feeds.
Hedge funds · 7
Bridgewater Associates (Dalio) New position
Gotham Asset Mgmt (Greenblatt) Increased +35%
D.E. Shaw & Co Increased +4%
AQR Capital Management Increased +73%
Citadel Advisors Increased +118%
Southeastern Asset Mgmt (Longleaf) Decreased −40%
+1 more in the full breakdown below ↓
Congress · 0
No congressional trades on record.
Insiders
No significant Form 4 insider activity in the window.
Not a model pick — but on our radar. WHITE MTNS INS GROUP LTD isn't in the top-10 model right now, but 7 tracked investors hold it. Everything below is real signal from public filings — treat this as a watch candidate, not a conviction call.
7
Investors
1
New positions
4
Increasing
2
Decreasing
0
Unchanged
Who's Holding This Stock
Position sizes and recent activity from tracked institutional investors
Bridgewater Associates (Dalio)
Trust weight: 1.3×
New position
% of portfolio
0.0%
Position change
NEW
0.0% of Bridgewater Associates's portfolio
Gotham Asset Mgmt (Greenblatt)
Trust weight: 1.1×
Increased +35%
% of portfolio
0.1%
Position change
+35%
0.1% of Gotham Asset Mgmt's portfolio
D.E. Shaw & Co
Trust weight: 1.0×
Increased +4%
% of portfolio
0.0%
Position change
+4%
0.0% of D.E. Shaw & Co's portfolio
AQR Capital Management
Trust weight: 1.0×
Increased +73%
% of portfolio
0.0%
Position change
+73%
0.0% of AQR Capital Management's portfolio
Citadel Advisors
Trust weight: 1.0×
Increased +118%
% of portfolio
0.0%
Position change
+118%
0.0% of Citadel Advisors's portfolio
Southeastern Asset Mgmt (Longleaf)
Trust weight: 1.2×
Decreased −40%
% of portfolio
2.0%
Position change
−40%
2.0% of Southeastern Asset Mgmt's portfolio
Millennium Management (Englander)
Trust weight: 1.0×
Decreased −55%
% of portfolio
0.0%
Position change
−55%
0.0% of Millennium Management's portfolio
Portfolio Allocation
How much of each investor's portfolio is allocated to WHITE MTNS INS GROUP LTD
⚠ Disclaimer: This page is for informational purposes only. Holdings data from SEC EDGAR 13F filings, delayed up to 135 days. Not a recommendation to buy or sell WHITE MTNS INS GROUP LTD or any security.

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