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White Mountains Insurance

322 hedge funds and large institutions have $4.17B invested in White Mountains Insurance in 2025 Q2 according to their latest regulatory filings, with 34 funds opening new positions, 103 increasing their positions, 110 reducing their positions, and 27 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
322
Holders Change
+3
Holders Change %
+0.94%
% of All Funds
4.32%
Holding in Top 10
5
Holding in Top 10 Change
-2
Holding in Top 10 Change %
-28.57%
% of All Funds
0.07%
New
34
Increased
103
Reduced
110
Closed
27
Calls
Puts
Net Calls
Net Calls Change
Name Holding Trade Value Shares
Change
Shares
Change %
OIAM
326
OFI Invest Asset Management
France
-$1.31M -736 Closed
VRS
327
Virginia Retirement Systems
Virginia
-$1.35M -700 Closed
SG Americas Securities
328
SG Americas Securities
New York
-$1.33M -689 Closed
Renaissance Technologies
329
Renaissance Technologies
New York
-$1.16M -600 Closed
TC
330
TownSquare Capital
Utah
-$688K -357 Closed
SFI
331
Susquehanna Fundamental Investments
Pennsylvania
-$637K -331 Closed
Two Sigma Investments
332
Two Sigma Investments
New York
-$578K -300 Closed
VI
333
Vestcor Inc
New Brunswick, Canada
-$422K -219 Closed
P
334
Pitcairn
Pennsylvania
-$256K -133 Closed
Principal Financial Group
335
Principal Financial Group
Iowa
-$241K -125 Closed
HWM
336
HB Wealth Management
Georgia
-$233K -121 Closed
MF
337
Magnetar Financial
Illinois
-$227K -118 Closed
GT
338
Glenview Trust
Kentucky
-$212K -110 Closed
BCI
339
Brinker Capital Investments
Pennsylvania
-$208K -108 Closed
HSA
340
HBK Sorce Advisory
Pennsylvania
-$208K -108 Closed
BP
341
Ballentine Partners
Massachusetts
-$204K -106 Closed
CIS
342
Custom Index Systems
New York
-$200K -104 Closed
CCM
343
Coldstream Capital Management
Washington
-$181K -94 Closed
SFG
344
Stonebridge Financial Group
Pennsylvania
-$116K -60 Closed
QC
345
Quent Capital
New York
-$108K -56 Closed
CF
346
Corebridge Financial
Texas
-$32.7K -17 Closed
HCP
347
Hexagon Capital Partners
Arkansas
-$32.7K -17 Closed
BT
348
Banque Transatlantique
France
-$5.22K -3 Closed
MG
349
Mather Group
Illinois
-$1.93K -1 Closed