Notice of Change in Top Management Structure
TOKYO, January 4, 2023 - Monex Group, Inc. (the "Company") hereby announces that its Board of Directors
has resolved today that, in order to further strengthen the Company’s management structure, its intention ofchanging the Company’s top management by having Oki Matsumoto as Chairman and Representative
Executive Officer and Yuko Seimei as President, Representative Executive Officer and CEO (ChiefExecutive Officer) after the 19th Ordinary General Meeting of Shareholders scheduled to be held in June
2023. Oki Matsumoto will continue to serve as Chairman of the Board of Directors as Executive Chairman.
This change will be approved at an extraordinary meeting of the Board of Directors to be held after the 19th
Ordinary General Meeting of Shareholders on the assumption that the proposal for the appointment ofdirectors, which will be resolved by the Board of Directors for submission, will be approved at the meetingof shareholders.
1. Background of Strengthening the Management StructureWith the leadership and clear vision of Oki Matsumoto, the founder, our group has steadily expanded its
business. Under such circumstances, twenty-three years have passed since the first Monex group company
was founded, and in order to adapt to changes in the internal and external environment and to achievesustainable and long-term growth of our group, we have decided on our intention to strengthen ourmanagement structure. While Oki Matsumoto will continue to unite the entire group in his position as
Chairman and Representative Executive Officer, we believe that the appointment of Yuko Seimei as
President, Representative Executive Officer and CEO (Chief Executive Officer) will enable us to build astronger management execution and governance structure.
At Monex, Inc., which was founded by Oki Matsumoto as one of the first online brokerages in Japan, andwhich is the origin of our group and a core subsidiary of the Company, Oki Matsumoto will step down asChairman and act as Founder effective January 4, 2023. Since Oki Matsumoto already has no executiveauthority at Monex, Inc., there will be no change in its executive structure. In addition to the execution of
his duties as Chairman and Representative Executive Officer of the Company, Oki Matsumoto will focus
on engagement of listed companies as Chairman of the Board of Directors of Japan Catalyst, Inc. andpursue and realize revitalization of the Japanese capital market and improvement of productivity ofJapanese society by encouraging corporate reform through investment actions, which in turn will lead tohigher investment returns for all investors.
Under the solid management structure of Oki Matsumoto and Yuko Seimei, our executive management andemployees will work together to realize the corporate philosophy while maintaining their autonomy,
thereby enhancing the corporate value of the Monex Group over the long term.
2. Changes in Management
Monex Group, Inc.
Officers and Executive Officers
Effective late June 2023 (scheduled)(New position)
Chairman and Representative
Executive Officer(Name)Oki Matsumoto(Current position)

President, Representative
Executive Officer and CEO

President, Representative
Executive Officer and CEO

Representative Executive Officer
Co-CEO

Yuko Seimei(*1)

CFO

CEO: Chief Executive Officer
Co-CEO: Co-Chief Executive Officer
CFO: Chief Financial Officer(*1)
Yuko Seimei will continue to concurrently serve as Representative Director and President of Monex,
Inc.

Contact:Akiko Kato
Corporate Communications OfficeMonex Group, Inc.
+81-3-4323-8698

Yuki Nakano, Taishi Komori
Investor Relations, Financial Control Department
Monex Group, Inc.
+81-3-4323-8698

This material is an English translation of a Japanese announcement made on the date above. Although the Company intended
to faithfully translate the Japanese document into English, the accuracy and correctness of this English translation is notguaranteed and thus you are encouraged to refer to the original Japanese document. This translation was made as a matter ofrecord only and does not constitute an offer to sell or to solicit an offer to buy securities in the U.S.

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