White Mountains acquires majority stake in US P&C MGA Distinguished Programs.

Bermuda-based White Mountains Insurance Group is set to acquire New York-based specialty property and casualty MGA Distinguished.

White Mountains, which currently owns a 1% stake in Distinguished, will acquire another 50% of Distinguished’s equity for $230 million. 

Distinguished Programs, led by industry veterans Bill Malloy, Jason Rotman and Steve Sitterly, places more than $550 million in premiums each year across a portfolio of 12 specialty P&C programmes. 

Current majority shareholder Aquiline Capital Partners will retain a significant minority equity stake. And Distinguished's current executive management team will continue to lead the business, each remaining a significant equity holder.

The transaction is expected to close in the third quarter of 2025. 

“We've been keen observers of Distinguished’s recent progress, and we are pleased to make this acquisition alongside fellow shareholders and a seasoned management team we've known for many years,” said Manning Rountree (pictured), CEO of White Mountains . “They are well-positioned in an attractive and dynamic market, and we look forward to partnering with the team to capitalise on the organic and inorganic growth opportunities ahead.”

“Partnering with White Mountains marks a new and exciting chapter for Distinguished. We believe that their deep insurance expertise, outstanding track record and relevant resources make them the ideal partner for our next phase,” said Jason Rotman, president of Distinguished (pictured, right). “Bill, Steve and I look forward to maintaining and increasing the momentum created over the last three years of partnership with Aquiline.”

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