White Mountains Insurance Group LTD 13F institutional holdings
Quarterly disclosures of US equity positions held by institutional managers with over $100 million under management.
NYSE
White Mountains Insurance Group Ltd reported 2 holdings worth $393.6M for the period ended June 30, 2026.
NYSE
White Mountains Insurance Group Ltd. reports its Q1 2026 holdings, primarily in MediaAlpha Inc. CL A and SPDR S&P 500 ETF Trust.
NYSE
White Mountains Insurance Group Ltd. filed its Q4 2025 13F report, revealing significant holdings in MediaAlpha Inc. Class A and SPDR S&P 500 ETF Trust.
NYSE
White Mountains Insurance Group Ltd. reported its Q3 2025 institutional investment holdings, revealing a significant sole position in MediaAlpha Inc. Class A shares.
NYSE
White Mountains Insurance Group Ltd. reported a significant holding of 17.86 million Class A shares in MediaAlpha Inc., valued at over $195 million, as of June 30, 2025.
NYSE
White Mountains Insurance Group's latest 13F filing discloses its equity holdings as of March 31, 2025, with significant positions in MediaAlpha Inc and SPDR S&P 500 ETF Trust.
NYSE
White Mountains Insurance Group's latest 13F filing discloses its holdings as of December 31, 2024, with significant investments in MediaAlpha Inc and SPDR S&P 500 ETF Trust.
NYSE
White Mountains Insurance Group's latest 13F filing reveals significant holdings in MediaAlpha Inc. and SPDR S&P 500 ETF as of September 30, 2024.
NYSE
White Mountains Insurance Group's latest 13F filing reveals significant holdings in MediaAlpha Inc. and SPDR S&P 500 ETF as of June 30, 2024.
NYSE
13F-HR: White Mountains Insurance Group Reports Q1 2024 Holdings: Significant Investment in MediaAlpha Inc.
White Mountains Insurance Group's Q1 2024 13F filing reveals a substantial holding in MediaAlpha Inc. and SPDR S&P 500 ETF Trust.