MARKEL GROUP INC.

Current report

The disclosure below supplements risk factors previously disclosed in our 2025 Annual Report on Form 10-K. These risks and uncertainties, along with those previously disclosed, could materially adversely affect our businesses, results of operations, or financial condition.

Current report

Our businesses, results of operations, and financial condition could be adversely affected by ongoing regional or military conflicts and related disruptions in the global economy. The global economy has been, and may in the future be, negatively impacted by regional or military conflicts, for example, the on-going conflicts between Russia and Ukraine and in the Middle East, following U.S. and Israeli airstrikes on Iran. We may have operations in areas affected by a conflict, and some of our businesses may be adversely affected by a conflict and its effects. Within our underwriting operations, we have, and may continue to have, insurance contracts with exposure to losses attributed or corollary to a conflict, such as losses related to our coverage of ships, cargo, trade credit, and inventory. For example, we underwrite insurance policies covering risks in the Middle East and have incurred losses from the Middle East conflict attributed to terrorism and marine war coverages written by the Markel Insurance International division, which we discuss under Item 2 Management's Discussion & Analysis of Financial Condition and Results of Operations. Additionally, our investment portfolio has experienced, and may continue to experience, adverse market value movements attributable to market reactions to developments in the Middle East, including fluctuations in energy prices, and broader equity and fixed income market volatility. Our other operations also may have direct exposure to customers and vendors in an affected area. Certain of our businesses may experience shortages in materials and increased costs for transportation, energy, and raw materials due in part to the negative impact of a conflict on the global economy.

Current report

Furthermore, governments in the U.S., U.K., and E.U., among others, may impose export controls on certain products and financial and economic sanctions on certain industry sectors and parties in affected areas. These export controls and sanctions, or our failure to comply with them, could result in restrictions on our ability to do business in one or more of the jurisdictions in which we conduct business or have the other adverse effects previously discussed in our 2025 Annual Report on Form 10-K in Item 1A Risk Factors under "We are subject to laws and regulations relating to economic and trade sanctions and bribery and corruption, the violation of which could have a material adverse effect on us."

Current report

We are unable to predict the impact an ongoing conflict may have on our businesses or the global economy. The impact of geopolitical tensions related to these conflicts, including increased trade barriers or restrictions on global trade, is unknown and could result in, among other things, heightened cybersecurity threats, supply disruptions, disruptions to our operations, protracted or increased inflation, increased energy costs, lower consumer demand, fluctuations in interest and foreign exchange rates, and increased volatility in financial markets, any of which could adversely affect our businesses, results of operations, and financial condition. In addition, an ongoing conflict may have the effect of triggering or intensifying many of the risks described in Part I, Item 1A Risk Factors of our Annual Report on Form 10-K for the fiscal year ended December 31, 2025.

Previous report

Throughout 2025, the U.S. has announced new, as well as changes in, tariffs on a broad range of foreign imports. These tariffs, and any additional duties, tariffs, and other trade barriers, imposed or modified by the U.S., and retaliatory or responsive countermeasures by other countries, may adversely affect the price and availability of goods for our businesses and the demand for our products and services. Additionally, any such measures or countermeasures may increase inflationary pressure on our insured losses, loss adjustment expenses, and other operating costs. These impacts may be material, and our efforts to mitigate these impacts may not be successful and, even when they are successful, there may be a time lag before the impacts of these efforts are reflected in our results. See Item 1A Risk Factors in our 2024 Annual Report on Form 10-K for more discussion of these risks, including under:

Previous report

•"Our results may be affected because actual insured or reinsured losses differ from our loss reserves."

Previous report

•"Our investment results may be impacted by changes in interest rates, U.S. and international monetary and fiscal policies as well as broader economic conditions."

Previous report

•"General economic, market or industry conditions could lead to investment losses, adverse effects on our businesses and limit our access to the capital markets."