Announcement of Changes in Management, Personnel and Organization
TOKYO, March 22, 2023 - Monex Group, Inc. (“the Company”) hereby announces changes in management,personnel and organization of its group companies named below in order to strengthen management structure.
Monex Group, Inc.
Monex, Inc.
Japan Catalyst, Inc.
I. Monex Group, Inc.
1. Organizational Changes (Effective April 1, 2023)- Newly established Legal Department and Finance Department.
2. Officers, Executive Officers, and Executive Directors Changes
Effective April 1, 2023 （scheduled）
Name
New Position
Representative Executive Officer,Yuko Seimei(*1)
Co-CEO

Current Position
Representative Executive Officer,

Takashi Oyagi(*2)

Executive Officer

Executive Officer, CFO

Co-CEO and CFO

Executive Director,
Executive Director,
General Manager,
Assistant to CFO
Strategic Planning Office
Executive Director,
Masayuki Okamoto
General Counsel
Co-CEO: Co-Chief Executive Officer
CFO: Chief Financial Officer(*1) Yuko Seimei will continue to concurrently serve as Representative Director and President ofMonex, Inc. She is scheduled to be appointed Representative Executive Officer and President,
and Chief Executive Officer of the Company at the Board of Directors meeting held after theGeneral Meeting of Shareholders in June, 2023.
(*2) Takashi Oyagi will continue to concurrently serve as Member of the Board of Directors and Chief
Strategic Officer, TradeStation Group, Inc.
Hiroshi Yamaguchi【Reasons for the appointment of Masayuki Okamoto as Executive Director】
Masayuki Okamoto has over 30 years of experience as an attorney, coordinating and advising on Japaneselaws and regulations for various cross-border financial transactions and foreign corporations, and has
served as our General Counsel from August 2019 to December 2021.
With the increasing number of cross-border capital policies and business alliances, there is an urgent needfor a holding company with financial subsidiaries like ours to strengthen its global legal function, and weare pleased to appoint him as our Executive Director (General Counsel).

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Responsibilities of Executive Officers （As of April 1, 2023）（scheduled）
NameTitle
Responsibilities
Other important positions in thegroup
Oki
Matsumoto

Representative
Executive
Officer & CEO

Chief Executive Officer- Overall Management- Crypto Asset Business- Asset ManagementBusiness- New Businesses
Co-Chief ExecutiveOfficer- Strategic Planning- Financial Controls- Global Securities
Business- Information Security- Risk Management
Chief Financial Officer- US Business

Yuko
Seimei

Representative
Executive
Officer

Kiminori
KanekoTakashiOyagi

Executive
Officer
Executive
OfficerJohn
Bartleman

Executive
Officer- US Business

Shoji
Kuwashima

Executive
Officer

Katsuki
Mandai

Executive
Officer

Chairman- Internal Controls- Crisis Management- Investment Business- Corporate
Communications- Asia-Pacific Business- Asset Management
Business- Wealth Management

TakuyaYamanaka
NaofumiYamadaExecutive
Officer
Executive
Officer- Human Resources- Technology- Crypto Asset Business- AI Strategy- Chairman of the Board ofDirectors, TradeStation Group, Inc.
- Chairman, Managing Director &Executive Director Coincheck, Inc.
- Chairman & Managing Director,
Japan Catalyst, Inc.
- Representative Director &President, Monex, Inc.
- Member of the Board of Directors,
TradeStation Group, 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, Inc.

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

3. Personnel Changes
Effective April 1, 2023 （scheduled）
Name

New Position

Current Position

Kimiharu Shidara

General Manager,
Legal Department-Tomokazu Furukawa

General Manager,
Finance Department-2II. Monex, Inc.
1. Organizational Changes （Effective April 1, 2023 （scheduled））- Renamed Private Wealth Department to Wealth Management Department for the purpose of promoting thewealth management business in earnest.
2. Personnel Changes
Effective April 1, 2023 （scheduled）
Name

New Position

Current Position

Takashi Yamauchi

General Manager,
Wealth Management Department

General Manager,
Private Wealth Department

III. Japan Catalyst, Inc.
Director Change
Effective April 1, 2023（scheduled）
Name

New Position

Current Position

Katsuki Mandai(*3)

Managing Director-(*3) Katsuki Mandai will continue to concurrently serve as Representative Director & President, Monex

Asset Management, Inc.

Contact:

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