White Mountains Insurance Group LTD Schedule 13G passive stakes
Filed when an investor crosses five percent without intending to seek control — the passive counterpart to a 13D.
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Neuberger Berman Group LLC and its affiliate Neuberger Berman Investment Advisers LLC have filed a Schedule 13G, reporting beneficial ownership of 4.9% and 4.8% of White Mountains Insurance Group Ltd. common stock, respectively.
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Vanguard Capital Management reports beneficial ownership of 5.18% of White Mountains Insurance Group Ltd. common stock as of March 31, 2026.
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The Vanguard Group has filed an amended Schedule 13G, reporting zero beneficial ownership in White Mountains Insurance Group Ltd following an internal realignment.
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Morgan Stanley has reduced its beneficial ownership in White Mountains Insurance Group Ltd. to 3.0%, ceasing to be a greater than 5% owner.
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Neuberger Berman Group LLC and its affiliates have reported a 5.1% beneficial ownership stake in White Mountains Insurance Group LT, signaling a significant institutional investment.
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Morgan Stanley has filed an amendment to its Schedule 13G, reporting a 5.2% beneficial ownership stake in White Mountains Insurance Group Ltd.
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Morgan Stanley has reported a 6.2% beneficial ownership stake in White Mountains Insurance Group Ltd., holding 159,020 common shares as of June 30, 2025.