James River Group Holdings, Inc.

In preparing the unaudited condensed consolidated financial statements, we are required to make estimates and assumptions that affect the reported amounts of assets and liabilities and the disclosures of contingent assets and liabilities as of the date of the condensed consolidated financial statements and the reported amounts of revenues and expenses for the reporting period. Actual results could differ significantly from those estimates.

The most critical accounting policies involve significant estimates and include those used in determining the reserve for losses and loss adjustment expenses and investment valuation and impairment. For a detailed discussion of each of these policies, refer to our Annual Report on Form 10-K for the year ended December 31, 2025. There have been no significant changes to any of these policies during the current year.

Recent Strategic Actions

Domestication of James River Group Holdings, Inc. (“JRG Holdings”)

On November 7, 2025, we changed our jurisdiction of incorporation from Bermuda to Delaware, and we refer to this change as the “Domestication”. On the effective date, our common shares issued and outstanding immediately prior to the effective time of the Domestication automatically converted by operation of law into an equivalent number of shares of common stock of James River Group Holdings, Inc., a Delaware corporation. The Company recognized a one-time tax benefit of $14.1 million related to business interest expense effective with the Domestication. The Domestication is expected to lower the Company’s effective tax rate, as holding company expenses and interest expense (previously incurred in Bermuda and ineligible for U.S. tax deduction) will receive a U.S. tax deduction in future periods, as well as bring additional operating efficiencies. In connection with the Domestication, the Company dissolved James River Group Holdings UK Limited, its prior UK intermediate holding company, effective December 23, 2025.