White Mountains Insurance Group.

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• board of directors Structural
  The Coldwater Area Chamber of Commerce is seeking nominations for its leadership body.
  Moves White Mountains Insurance Group

  Mon 16:49
• Brown Brothers Harriman & Co. Transactional
  Brown Brothers Harriman & Co. increased its holdings in Broadcom stock, requiring a filing with the SEC.
  Moves White Mountains Insurance Group

  Sun 18:57
• Ark Structural
  A joint venture has been formed for Crown Hosting Data Centres, with Ark operating on land previously belonging to the Ministry of Defence.
  Moves White Mountains Insurance Group

  Sun 15:55
• Amundi Transactional
  Amundi increased its stock holding in Amazon.com, Inc. on September 28, 2026.
  Moves White Mountains Insurance Group

  Mon 07:41
• Norges Bank Transactional
  Norges Bank bought a new position in Qualcomm shares, coinciding with buy ratings and price targets from TD Cowen, reported by MarketBeat.
  Moves White Mountains Insurance Group

  Mon 06:47
• Bermuda Shared context
  El Niño patterns are affecting regional weather, specifically impacting storm development near Bermuda.
  Moves White Mountains Insurance Group

  Mon 17:43

• CVC Capital Partners Transactional

  CVC Capital Partners purchased Bamboo from White Mountains Insurance Group on 2026-08-06.

  Some supportSep 1
  White Mountains Insurance Group → CVC Capital Partners

  CVC Capital Partners → White Mountains Insurance Group
• board of directors Structural

  The board of directors serves as the governing body for White Mountains Insurance Group.

  Some supportAug 28
  White Mountains Insurance Group → board of directors

  board of directors → White Mountains Insurance Group
• Brown Brothers Harriman & Co. Transactional

  Brown Brothers Harriman & Co. has purchased a stake in White Mountains Insurance Group.

  Some supportSep 5
  White Mountains Insurance Group → Brown Brothers Harriman & Co.

  Brown Brothers Harriman & Co. → White Mountains Insurance Group
• Ark Structural

  Ark functions as a primary business segment of White Mountains Insurance Group.

  Some supportJul 3
  White Mountains Insurance Group → Ark

  Ark → White Mountains Insurance Group
• Amundi Transactional

  Amundi acquired a new investment position in shares of White Mountains Insurance Group.

  Some supportAug 8
  White Mountains Insurance Group → Amundi

  Amundi → White Mountains Insurance Group
• Norges Bank Transactional

  Norges Bank acquired a new stake in White Mountains Insurance Group.

  Some supportSun 07:10
  White Mountains Insurance Group → Norges Bank

  Norges Bank → White Mountains Insurance Group
• Berkshire Hathaway Shared context

  The evidence suggests that the entity operates within a functional model similar to that of Berkshire Hathaway.

  Some supportJul 3
  White Mountains Insurance Group → Berkshire Hathaway

  Berkshire Hathaway → White Mountains Insurance Group
• Bermuda Shared context

  White Mountains Insurance Group is headquartered in Bermuda.

  Some supportSun 07:10
  White Mountains Insurance Group → Bermuda

  Bermuda → White Mountains Insurance Group