Notice regarding Repurchase and Cancellation of Own Shares

To whom it may concern

May 14, 2026

Sumitomo Mitsui Trust Group, Inc. (Securities Code: 8309 TSE, NSE)

Notice regarding Repurchase and Cancellation of Own Shares (Repurchase of Own Shares pursuant to Provision of Articles of Incorporation in

accordance with Article 459, Paragraph 1 of the Companies Act, and Cancellation of a part of Own Shares pursuant to Provision of Article 178 of the Companies Act)

Sumitomo Mitsui Trust Group, Inc. (President & CEO: Kazuya Oyama, hereinafter "SuMiTG") hereby announces that the board of directors resolved at the meeting held today to repurchase own shares pursuant to the provision of Articles of Incorporation in accordance with Article 459, Paragraph 1 of the Companies Act and to cancel a part of own shares pursuant to the provision of Article 178 of the Companies Act.

1. Reason for Repurchase and Cancellation

   In consideration of the status of securing sufficient capital, the use of capital for medium-to-long term profit growth and the company's current stock price level, SuMiTG will repurchase own shares in order to improve the capital efficiency.

2. Details of Repurchase

   1. Class of shares to be repurchased Common stock of SuMiTG

   2. Total number of shares to be repurchased Up to 14,000,000 shares

      (Percentage to the total number of shares in issue (excluding treasury stock) 2.0 %)

   3. Total amount of repurchase Up to JPY 50,000,000,000

   4. Repurchase period From May 15, 2026 to September 30, 2026

   5. Repurchase method Market purchases on the Tokyo Stock Exchange based on a discretionary trading contract

3. Details of Cancellation

   1. Class of shares to be cancelled Common stock of SuMiTG

   2. Number of shares to be cancelled (*) All of the shares to be repurchased as stated in 2 above

   3. Scheduled cancellation date October 20, 2026

(*) The actual number of shares cancelled will be announced after completing the repurchase stated in 2 above.

(Reference 1) Status of shares in issue and treasury stock as of March 31, 2026 Total number of shares in issue (excluding treasury stock) 698,236,940 shares Number of treasury stock 576,040 shares

(Reference 2) Shareholder return policy

SuMiTG announced its shareholder return policy in May 14, 2026, as follows:

"Shareholder returns will be provided with a target total payout ratio of 50% or above.

Dividends per share will be progressive, and determined with an aim of approximately 50% of "Adjusted net income (*)", which excludes net gains from the sale of strategic shareholdings.

Share repurchases will be implemented flexibly contributing to enhance capital efficiency, with due consideration of business performance, capital conditions, and the level of the share price.

(*) Adjusted net income = net income attributable to owners of the parent - net gains from the sale of strategic shareholdings (after tax)"

End

For further information, please contact:

Investor & Shareholder Relations Department, Sumitomo Mitsui Trust Group, Inc. Telephone : +81-3-3286-8354