Apr 1987: Joined Salomon Brothers Asia Securities Company Apr 1990: Joined Goldman Sachs Securities Co., Ltd. Nov 1994: General Partner, The Goldman Sachs Group, L.P. Apr 1999: Representative Director, Monex, Inc. (formerly Monex Securities Co., Ltd.) Aug 2004: Representative Director, President, Monex Group, Inc. May 2005: Representative Director, President, Monex Beans Securities Co., Ltd. (now Monex Securities Co., Ltd.) Jun 2008: Director, Tokyo Stock Exchange, Inc. Jun 2008: Director, Shinsei Bank, Limited (now SBI Shinsei Bank, Limited) Jun 2010: Director, kakaku.com, Inc. Jun 2011: Chairman of the Board, TradeStation Group, Inc. Jun 2013: Director, Chairman and Representative Executive Officer, President, Monex Group, Inc. Nov 2013: Director, JAN Inc. Nov 2015: Representative Director, Chairman, Monex Securities Co., Ltd. Jun 2016: Director, Mastercard Incorporated (current) Aug 2016: Director, Uzabase, Inc. Apr 2017: Director, Chairman, Monex Securities Co., Ltd. Oct 2017: Representative Director, President, Monex Securities Co., Ltd. Apr 2018: Director, Coincheck, Inc. Apr 2019: Representative Director, Chairman, Monex Securities Co., Ltd. Apr 2019: Chairman of the Board, Coincheck, Inc. Dec 2019: Director, Catalyst Investment Advisory Co., Ltd. Jan 2020: Director, Chairman, Catalyst Investment Advisory Co., Ltd. (current) Jan 2020: Director, Chairman, Monex Securities Co., Ltd. Dec 2021: Director, Chairman and Executive Officer, Coincheck, Inc. Apr 2022: Director and Representative Executive Officer, President, Monex Group, Inc. Apr 2023: Chairman of the Board, Coincheck, Inc. Jun 2023: Director and Representative Executive Officer, Chairman, Monex Group, Inc. Jan 2024: Chairman of the Board, DOCOMO Monex Holdings, Inc. (current) Jun 2024: Director, Coincheck, Inc. (current) Dec 2024: Chairman of the Board, Coincheck Group N.V. (current) Apr 2025: Director, Monex Group, Inc. (current) Apr 2025: Director, TradeStation Group, Inc. (current)

Apr 2001: Joined Sanwa Bank, Ltd. (now MUFG Bank, Ltd.) Dec 2006: Joined MKS Partners Co., Ltd. Feb 2009: Joined Monex Group, Inc. Feb 2009: Seconded to WR Hambrecht Japan K.K. (now Monex Securities Co., Ltd.) Jun 2011: Representative Director, President, Monex Hambrecht K.K. (now Monex Securities Co., Ltd.) Mar 2013: Executive Officer, Monex Group, Inc. Jun 2015: Managing Executive Officer, Monex Group, Inc. Jun 2016: Executive Officer, Monex Group, Inc. Dec 2016: Representative Director, Monex Ventures Co., Ltd. Apr 2017: Representative Director, Monex Saison Vanguard Investment Advisory Co., Ltd. (now Monex Asset Management Co., Ltd.) Apr 2018: Managing Executive Officer, Monex Group, Inc. Apr 2018: Director, TradeStation Group, Inc. (current) Apr 2019: Representative Director, President, Monex Securities Co., Ltd. Jan 2020: Representative Executive Officer, Monex Group, Inc. Jun 2021: Director and Representative Executive Officer, Monex Group, Inc. Jun 2023: Director and Representative Executive Officer, President, Monex Group, Inc. (current) Jan 2024: Director, DOCOMO Monex Holdings, Inc. (current) Jan 2024: Director, President and Executive Officer, Monex Securities Co., Ltd. (current)

Apr 1991: Joined Bank of Japan Jan 1998: Joined Goldman Sachs Securities Co., Ltd. Apr 1999: Joined Monex, Inc. (formerly Monex Securities Co., Ltd.) May 2004: Joined Deutsche Bank Securities, Inc. Aug 2007: CEO and President, MBH America, Inc. Jul 2009: Executive Officer, Monex Group, Inc. Jun 2011: Director, TradeStation Group, Inc. Jun 2011: Director, Monex Group, Inc. Jun 2013: Director and Executive Officer, Monex Group, Inc. (current) Apr 2024: Chairman of the Board, 3iQ Digital Holdings Inc. (current) Jun 2024: Director, Monex Asset Management Co., Ltd. Dec 2024: Outside Director, Coincheck Group N.V. (current) Apr 2025: Chairman of the Board, TradeStation Group, Inc. (current) Jun 2026: Director, Coincheck, Inc. (current)

Jun 2011: Patent Attorney, Sosidea Intellectual Property Office (current) Oct 2012: Representative Director, AppReSearch, Inc. (now PKSHA Technology, Inc.) Jun 2016: Director, Technology Officer, PKSHA Technology, Inc. Oct 2016: Director, BEDORE, Inc. (now PKSHA Workplace, Inc.) Sep 2019: Representative Director, PKSHA xOps, Inc. Jun 2021: Director, Monex Group, Inc. Apr 2022: Director and Executive Officer, Monex Group, Inc. (current) Apr 2022: Executive Officer, Coincheck, Inc. Apr 2023: Senior Executive Officer, Coincheck, Inc. Sep 2025: Outside Director, Third Intelligence, Inc. (current)

Apr 1993: Joined McKinsey & Company, Inc. Japan Sep 1998: Joined Fast Retailing Co., Ltd. Nov 1998: Director, Fast Retailing Co., Ltd. Jul 1999: Managing Director, Fast Retailing Co., Ltd. Nov 2004: Senior Managing Director, Fast Retailing Co., Ltd. Nov 2005: Director, Fast Retailing Co., Ltd. Nov 2008: Senior Executive Officer, Fast Retailing Co., Ltd. Dec 2008: President, FAST RETAILING FRANCE S.A.S. Aug 2010: CEO, FAST RETAILING USA, Inc. Jun 2016: Director, DeNA Co., Ltd. Jun 2016: Director, Monex Group, Inc. (current) Feb 2019: Senior Executive Officer, Ryohin Keikaku Co., Ltd. May 2019: Senior Managing Director, Ryohin Keikaku Co., Ltd. Sep 2021: Representative Director, President, Ryohin Keikaku Co., Ltd. Nov 2024: Director, Chairman, Ryohin Keikaku Co., Ltd.

Sep 1981: Joined Goldman Sachs Securities Co., Ltd. Dec 1992: General Partner, Goldman Sachs & Co. Jul 2000: Chairman of the Board, Neoteny Co., Ltd. Mar 2005: Director, RHJ International Jun 2006: Director, Monex Group, Inc. (current) Jun 2011: Director, TradeStation Group, Inc. (current) Jun 2011: Director, Shinsei Bank, Limited (now SBI Shinsei Bank, Limited) Sep 2014: Director, Philip Morris International Inc.

Oct 1987: Joined Eiwa Audit Corporation (now Azsa Audit LLC) Aug 1991: Registered as Certified Public Accountant Sep 2003: Left Eiwa Audit Corporation Oct 2003: Opened Koizumi Certified Public Accountant Office; Head of Office (current) Jun 2004: Audit & Supervisory Board Member, Internet Initiative Japan Inc. Aug 2006: Senior Partner, Futaba Audit Corporation Mar 2008: Director, Lifenet Insurance Company Jun 2010: Audit & Supervisory Board Member, Tsukui Co., Ltd. Feb 2015: Audit & Supervisory Board Member, Kyuso Ryutsu System Co., Ltd. Jun 2016: Director, Audit and Supervisory Committee Member, Tsukui Co., Ltd. Nov 2016: Audit & Supervisory Board Member, Ikka Dining Project Co., Ltd. Jun 2017: Director, Audit and Supervisory Committee Member, Ishigaki Foods Co., Ltd. (now Welldish Co., Ltd.) Jun 2018: Director, Monex Group, Inc. (current) Jun 2018: Director, Tsukui Co., Ltd. Oct 2020: Director, CSO, Tsukui Holdings Co., Ltd. (now Tsukui Co., Ltd.) Mar 2023: Outside Director, Audit and Supervisory Committee Member, Fan Communications, Inc. (current)

Apr 2002: Joined Editorial Engineering Laboratory, Inc. (Seigo Matsuoka Office) Apr 2004: Freelance work for Nikkei Home Publishing Co., Ltd. (now Nikkei Business Publications, Inc.) Apr 2005: Contract employee, Nikkei Home Publishing Co., Ltd.; reporter for Nikkei ZERO ONE (mobile phones, carriers, home appliances) Apr 2006: Joined Nikkei Business Publications, Inc.; reporter for Nikkei Money (investment trusts, insurance, ETFs, household finance) Apr 2012: Deputy Editor-in-Chief, Nikkei Money Nov 2013: Founding Editor-in-Chief, Nikkei DUAL Apr 2018: Editor-in-Chief, Nikkei ecomom (SDGs magazine) Feb 2019: Founding Editor-in-Chief, Nikkei xwoman (web media for working women); Editor-in-Chief, Nikkei ARIA Aug 2019: Chief Editor, Nikkei xwoman; Editor-in-Chief, Nikkei doors Sep 2021: Editorial Writer, Nikkei xwoman May 2022: Visiting Researcher, Nikkei xwoman Jun 2022: Founded Hanyu Pro Inc.; Representative Director, President (current) Apr 2023: Producer, WA, Women's Pavilion, Osaka Expo 2025 Apr 2023: Part-time Lecturer, Ochanomizu University (current) Jun 2024: Director, Monex Group, Inc. (current)

Jan 2001: Head of Life Sciences Venture Investment Fund, ITX Corporation (UK) Apr 2004: Associate Director, Oncology (concurrently other areas), Eisai Europe Ltd. (UK), Business Development Department Oct 2006: Manager, Oncology Business Development, Eisai Co., Ltd. Oct 2014: President, Global Business Development Unit, Eisai Co., Ltd. Oct 2016: Executive Officer, Business Development, Eisai Co., Ltd. Apr 2017: General Manager, Business Development and Medical Business Division, Janssen Pharmaceutical K.K. Oct 2020: CEO and Representative Director, Ferring Pharmaceuticals K.K. Nov 2021: Representative Director, President, Moderna Japan, Inc. Jan 2024: Representative Director, President and CEO, ARC Therapies K.K. (current) Jan 2024: Operating Partner, ARCHIMED Group Jan 2024: Outside Audit & Supervisory Board Member, Heparis Pharma K.K. (current) Feb 2024: Outside Director, Spera Pharma, Inc. (current) Apr 2024: Managing Director, ARCHIMED Group (current) Jun 2024: Director, Monex Group, Inc. (current)

Apr 1994: Joined Goldman Sachs Securities Co., Ltd., Investment Banking and Merchant Banking Divisions Sep 2000: Vice President, The Carlyle Group Jul 2007: General Manager, Business Strategy Division, Business Strategy Department, McDonald's Holdings Company (Japan), Ltd. Oct 2010: Manager, Development Strategy Promotion Department, Store Development Division, McDonald's Holdings Company (Japan), Ltd. Oct 2015: Senior Manager, Brand Extension Department, National Operations Division, McDonald's Holdings Company (Japan), Ltd. Jul 2016: Managing Manager, Corporate Planning Department, SOMPO Himawari Life Insurance, Inc. Apr 2017: General Manager, Human Resources Development Department, SOMPO Himawari Life Insurance, Inc. Apr 2019: Executive Officer, General Manager, Human Resources Development Department, SOMPO Himawari Life Insurance, Inc. Apr 2020: Executive Officer, General Manager, Healthcare Business Development Department, SOMPO Holdings, Inc. Aug 2021: Group CSuO, Executive Officer, SOMPO Holdings, Inc. Jun 2024: Director, Monex Group, Inc. (current) Apr 2025: Executive Officer, in charge of SOMPO Wellbeing, SOMPO Holdings, Inc. Apr 2025: Director, SOMPO Himawari Life Insurance, Inc. Apr 2025: Executive Officer, CFO, SOMPO Care Inc. Apr 2026: Executive Officer, in charge of Wellbeing Business, SOMPO Holdings, Inc. (current) Apr 2026: Representative Director, President and Executive Officer, SOMPO Health Support, Inc. (current)

Apr 1986: Joined Daiwa Securities Co., Ltd. (now Daiwa Securities Group Inc.) May 1987: International Sales Department, Daiwa Securities Co., Ltd. Feb 2002: Institutional Investor Sales Department, Daiwa Securities SMBC Co., Ltd. (now Daiwa Securities Co., Ltd.) Jun 2008: General Manager, IR Office, Daiwa Securities Group Inc. Apr 2011: President, Daiwa Capital Markets America Holdings Inc. Apr 2013: Executive Officer, in charge of Americas, Daiwa Securities Group Inc.; President, Daiwa Capital Markets America Holdings Inc. Apr 2016: Managing Executive Officer, in charge of Americas, Daiwa Securities Group Inc.; Chairman, Daiwa Capital Markets America Holdings Inc. Apr 2020: Representative Director and Vice President Executive Officer, Sumitomo Mitsui DS Asset Management Company, Limited Jul 2024: Advisor, Nippon Kanzai Holdings Co., Ltd. (current) Jun 2025: Director, Monex Group, Inc. (current)