Announcement of Changes in Management
TOKYO, June 26, 2023 - Based on a resolution of the Board of Directors, Monex Group, Inc. (“theCompany”) hereby announces the appointment of Representative Executive Officer, Co-CEO Yuko Seimei
as President, Representative Executive Officer and CEO as well as the changes in officers, executive officers,executive director and an expert director. At the same time, the Company announces changes in management
and employee for the following group companies.
-Monex Group, Inc.
Monex, Inc.
Coincheck, Inc.
Monex Asset Management, Inc.
Japan Catalyst, Inc.
Monex Private Bank, Inc.

1. Background
With the leadership and clear vision of Oki Matsumoto, the founder, our group has steadily expanded itsbusiness. Under such circumstances, twenty-four 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 check the governance of the entire group in his position
as Chairman and Representative Executive Officer and Executive Chairman of the Board, Yuko Seimei willlead the executive team as President, Representative Executive Officer and CEO to promote organization
management, thereby building a stronger management execution and governance structure.
Under the solid management structure of Oki Matsumoto and Yuko Seimei, our executive management andemployees will work together to realize the corporate philosophy and pursue sustainability while
maintaining their autonomy, thereby enhancing the corporate value of the Monex Group over the long term.

2. Changes in Management and Organization Changes
I. Monex Group, Inc.
Officers, executive officers, executive directors and an expert director
Effective June 24, 2023
(New position)(Name)(Current position)

President, Representative
Executive Officer and CEO

Yuko Seimei(*1)

Representative Executive
Officer, Co-CEO

Chairman and Representative
Executive Officer

Oki Matsumoto(*2)

President, Representative
Executive Officer and CEO

Naoyuki Kainuma

Executive Director,
Strategic Assistant to CEO,
General Manager, Audit
Committee Office

Expert Director,
Assistant to Executive
Chairman of the Board,
General Manager, Audit
Committee Office1

CEO: Chief Executive OfficerCo-CEO: Co-Chief Executive Officer(*1)
Yuko Seimei continues to serve as Representative Director and President of Monex, Inc.
(*2)
Oki Matsumoto continues to serve as Executive Chairman of the Board of the Company.
【Reasons for the appointment of Naoyuki Kainuma as expert director】
Naoyuki Kainuma was appointed as an expert director with an expectation that his expertise and experience
to be better utilized and to further contribute to the enhancement of our corporate value by concentrating on
corporate governance, sustainability, and information disclosure as an expert director, given the expectedfurther advancement of corporate governance and sustainability requirements from the capital market in thefuture.

Effective July 1, 2023 (scheduled)(New position)(Name)(Current position)

Executive Director (DEI*) andGeneral Manager,
Corporate Communications
OfficeAkiko KatoGeneral Manager,
Corporate Communications
OfficeExecutive Director andGeneral Manager,
Finance Department

Tomokazu Furukawa

General Manager,
Finance Department* Diversity, Equity and Inclusion【Reasons for the appointment of Akiko Kato and Tomokazu Furukawa as executive director】
Akiko Kato has extensive experience in publicizing the corporate value of our group, which has a global anddiverse business portfolio, to domestic and international channels. She has also worked on internal
communications and ESG promotion initiatives related to human capital management. Going forward, she isexpected to play an active role not only in corporate communications but also in the further enhancement of
human capital management as an executive director (DEI).
Tomokazu Furukawa is selected as an executive director in expectation of his high management ability invarious aspects, as he has demonstrated his capability in the financial field and contributed to stable business
operations of our subsidiaries both in Japan and the U.S., and he has a broad knowledge of the overallbusiness of our entire group.

2Responsibilities of Executive Officers (As of June 24, 2023)
Name
Title
Responsibilities
Yuko
Seimei

Representative
Executive
Officer & CEO

Chief Executive Officer- Overall Management- Strategic Planning- Financial Controls- Crypto Asset Segment- New Businesses

Oki
Matsumoto

Representative
Executive
Officer &Chairman

Kiminori
KanekoExecutive
Officer

TakashiOyagi

Executive
OfficerJohn
Bartleman

ExecutiveOfficer- US Segment

Shoji
Kuwashima

Executive
Officer

Katsuki
Mandai

Executive
Officer- Internal Controls- Crisis Management- Investment Business- CorporateCommunications- Japan Segment- Asia-Pacific Segment

TakuyaYamanaka

Executive
Officer- Human Resources

NaofumiYamadaExecutive
Officer- Technology- Crypto Asset Segment- AI Strategy- Japan Segment- Information Security- Risk Management
Chief Financial Officer- US Segment

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Other important positions in thegroup- Representative Director &President, Monex, Inc.
- Member of the Board of Directors,
TradeStation Group, Inc.
- Chairman of the Board ofDirectors, TradeStation Group, Inc.
- Chairman, Managing Director &Executive Director, Coincheck, Inc.
- Chairman & Managing Director,
Japan Catalyst, Inc.
- Member of the Board, Monex, Inc.
- Chief Strategic Officer, andMember of the Board of Directors,
TradeStation Group, Inc.
- President and Chief ExecutiveOfficer, and Member of the Boardof Directors, TradeStation Group,Inc.
- Member of the Board,
Monex Private Bank, Inc.

- Representative Director &President, Monex AssetManagement, Inc.
- Managing Director, Japan Catalyst,
Inc.
- Senior Executive Director,Monex, Inc.
- Expert Director, Coincheck, Inc.

II. Monex, Inc.
Organization Changes (Effective July 1, 2023 (scheduled))- Will establish AI Service Promotion Office to design and provide new customer experiences and services
in response to the development of generative AI.
- Will integrate Wealth Management Promotion Office into Wealth Management Department in order todynamically and efficiently acquire the high net worth customers and expanding the brokerage business.
Changes in Members of the Board
Effective June 20, 2023
Name

New Position

Current Position

Hiroshi Aikawa

Representative Director,
Member of the Board,
Senior Executive Director

Member of the Board,
Executive Director

Junya Matsuoka

Member of the Board,
Executive Director,
General Manager,
Corporate Planning
Department

Executive Director,
General Manager,
Corporate Planning
Department

Rikiji Maki

Member of the Board,
Executive Director

Executive Director

Shoji Kuwashima(Resign)

Member of the Board

Name

New Position

Current Position

Shinichiro Yamada

Executive Director,
Head of Sales Division

Executive Director
Head of Sales Division
General Manager, Marketing
Department

Tomokazu Furukawa

Executive Director,
General Manager, Finance
Department

General Manager, Finance
Department

Executive Director Changes
Effective July 1, 2023 (scheduled)

Personnel Changes
Effective July 1, 2023 (scheduled)4NameNew Position

Current Position

Atsushi Mandai

General Manager,
AI Services Promotion Office－Yutaka Masushima

General Manager,
Marketing Department

General Manager,
Wealth Management
Promotion OfficeName

New Position

Current Position

Tomoyuki Isaka

Deputy President
and Executive Director,
Director of Crypto Business
Development Division

Senior Executive Director,
Director of Crypto Business
Development Division

Ⅲ. Coincheck, Inc.
Executive Director Changes
Effective July 1, 2023 (scheduled)

Ⅳ. Monex Asset Management, Inc.
Management Director and Corporate Auditor Changes
Effective June 16, 2023
Name

New Position

Current Position

Naoyuki Kainuma

Managing Director－Hisashi Tanaami

Corporate Auditor－Yukinori Ohira

Deputy President

Deputy President, ManagingDirector

Naho Nakajima(Resign)

Chief Investment Officer,
Managing Director

Harumi Katsumata(Resign)

Corporate Auditor

5Ⅴ. Japan Catalyst, Inc.
Director Change
Effective June 22, 2023
Name

New Position

Current Position

Takahiro Kusakari

Director and Co-President,
Portfolio Manager

Portfolio Manager

Name

New Position

Current Position

Shoji Kuwashima

Member of the Board－Ⅵ. Monex Private Bank, Inc.
Director Change
Effective June 22, 2023

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