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White Mountains Insurance Gp shares owned by Marshall Wace

Quarter-by-quarter ownership of White Mountains Insurance Gp (WTM) shares owned by Marshall Wace from 13F filings

Historical chart of Marshall Wace investment in White Mountains Insurance Gp

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All positions including White Mountains Insurance Gp held by Marshall Wace consolidated in one spreadsheet with up to 7 years of data

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Quarterly reported holdings in White Mountains Insurance Gp by Marshall Wace

Quarter filed Position value Share count Share price at filing
2025-12-31 $2.3M 1.1k 2078.04
2021-12-31 $158k 156 1012.82
2020-09-30 $1.3M 1.6k 778.73
2018-12-31 $865k 1.0k 858.13
2016-12-31 $263k 315 834.92

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Top funds holding White Mountains Insurance Gp

Vanguard Group
Dimensional Fund Advisors
Neuberger Berman Group
River Road Asset Management
BlackRock
Hanna Zanoni
Cooke & Bieler
Fiduciary Management
Wallace Capital Management
Robeco Investment Management
London Company
State Street Corporation
T. Rowe Price Investment Management
Reinhart Mahoney Capital Management
Geode Capital Management

View all funds holding White Mountains Insurance Gp