Tokio Marine: Announcement regarding share repurchases from the market

Tokio Marine Holdings, Inc. (the "Company") announced that on March 23, 2026 its board of directors resolved repurchases of its own shares, pursuant to Article 156 of the Companies Act which is applicable in accordance with Article 165, paragraph 3 of the Companies Act, as detailed below.

The resolution has been made in response to the Strategic Partnership with National Indemnity Company, a core company in the reinsurance business of Berkshire Hathaway Group and the disposition of treasury shares by way of a third-party allotment announced today (for details, please refer to the press release entitled “Announcement of Strategic Partnership with Berkshire Hathaway Group”). The Company has adopted a flexible approach to repurchasing its own shares, based on a comprehensive assessment of factors including its capital level, market conditions, business investment opportunities, and the impact on adjusted EPS growth. To date, the Company has generally conducted such share repurchases at a scale of approximately 1% to 2% of its market capitalization as a guideline. However, as the aforementioned strategic partnership will enhance the flexibility of the Company’s capital policy, the Company plans to review this approach to shareholder returns from fiscal 2026 onward.

1. Reason for the repurchase of shares To offset the dilutive impact resulting from the disposition of treasury shares by way of a thirdparty allotment.

2. Details of the resolution made on March 23, 2026

(a) Class of shares to be repurchased: Common stock of the Company.

(b) Aggregate number of shares to be repurchased: Up to 48,207,200 shares. (Represents approximately 2.6% of total issued shares excluding treasury shares.)

(c) Aggregate purchase price of shares: Up to 287.4 billion yen.

(d) Period in which repurchases may be made: From April 1, 2026 through September 18, 2026.

(For reference) Total issued shares as of February 28, 2026 (excluding treasury shares): 1,880,081,972 shares Number of treasury shares held by the Company as of February 28, 2026: 53,918,028 shares