White Mountains Insurance Group has entered into an agreement to acquire a majority stake in managing general agent (MGA) Distinguished Programs in a deal valued at $230 million.
The Bermuda-based financial services holding company said it will increase its ownership to approximately 51%, adding to the 1% equity interest it already holds.
The transaction is expected to close in the third quarter of 2025, pending regulatory approval and customary closing conditions.
The move reflects White Mountains’ ongoing strategy of investing in specialty distribution platforms, particularly MGAs operating in niche and program-driven segments of the property and casualty market.
Distinguished Programs is a national MGA and program manager that places more than $550 million in annual premium. Its portfolio includes 12 specialty lines, ranging from commercial real estate and hospitality to cyber, environmental liability and fine art. The firm’s distribution model centers on partnering with independent agents and brokers across the US to deliver tailored coverage solutions.
Aquiline Capital Partners, which had been the controlling shareholder of Distinguished, will retain a significant minority stake following the transaction. Distinguished’s current leadership team, which includes Bill Malloy, Jason Rotman and Steve Sitterly, will continue in their roles and maintain equity positions in the business.
White Mountains CEO Manning Rountree described Distinguished as operating in a “dynamic market” and said the firm’s program-focused platform aligns with the company’s long-term investment objectives.
The announcement follows a similar investment by White Mountains in Bamboo Ide8 Insurance Services, a California-based MGA focused on homeowners insurance. In October 2023, White Mountains said it would investment approximately $285 million in Bamboo to acquire a controlling stake and provide additional capital to support growth. Bamboo currently insures over 100,000 homeowners in California and plans to expand into new states.
Legal advisers on the Distinguished deal include Cravath, Swaine & Moore LLP for White Mountains; Willkie Farr & Gallagher LLP for Distinguished and Aquiline; and Mayer Brown LLP for the management team.
