Apr 2006 Joined the Company Oct 2014 Executive Officer, Third Account Division, Septeni Co., Ltd. Oct 2015 Executive Officer, Second Account Division, Septeni Japan Co., Ltd. Jan 2017 Executive Officer and Division Head, Second Account Division, Septeni Japan Co., Ltd. Jan 2018 Group Executive Officer Dec 2018 Representative Director, Septeni Co., Ltd. Dec 2018 Representative Director, Septeni Japan Co., Ltd. Jan 2022 Group Senior Executive Officer Nov 2022 Outside Director, and factory Inc. Dec 2022 Director, Dentsu Digital Inc. Mar 2024 Representative Director, the Company (current) Apr 2024 Group President and Executive Officer (current) Mar 2025 Director, Septeni Co., Ltd. (current)

Apr 2006 Joined the Company Oct 2014 Executive Officer, Media Solutions Division, Septeni Co., Ltd. Oct 2015 Executive Officer, Media Growth Division, Septeni Japan Co., Ltd. Jan 2017 Executive Officer and Division Head, Media Division, Septeni Japan Co., Ltd. Jan 2018 Group Executive Officer Dec 2018 Representative Director and President, Septeni Co., Ltd. (current) Dec 2018 Representative Director and President, Septeni Japan Co., Ltd. (current) Jan 2022 Group Senior Executive Officer Mar 2024 Director, the Company (current) Apr 2024 Group Vice President and Executive Officer (current)

Nov 2008 Director, Cancer Scan Inc. Sep 2014 Director, Campus for H Inc. Sep 2018 Representative Director, Well-being for Planet Earth Foundation (current) Feb 2019 Outside Director (Audit and Supervisory Committee Member), Sansan, Inc. Mar 2019 Outside Director, GAIAX Co., Ltd. (current) Dec 2019 Outside Director, the Company (current) Dec 2024 Representative Director and President, Unmago Inc. (current)

Apr 1998 Joined Mitsubishi Research Institute, Inc. Sep 2008 Assistant Professor, State University of New York at Buffalo Sep 2013 Associate Professor, Waseda Business School, Waseda University May 2016 Outside Director, Macromill, Inc. Apr 2019 Professor, Waseda Business School, Waseda University (current) Jun 2019 Outside Director, Rohto Pharmaceutical Co., Ltd. (current) Jun 2020 Outside Director, Sanoh Industrial Co., Ltd. (current) Dec 2020 Outside Director, the Company (current) Jun 2021 Outside Director (Audit and Supervisory Committee Member), SORACOM, Inc. (current)

Jul 1999 Joined Goldman Sachs Japan Co., Ltd. Jun 2002 Joined Morgan Stanley MUFG Securities Co., Ltd. (formerly Morgan Stanley Securities Co., Ltd.) Mar 2006 Joined Lehman Brothers Securities Co., Ltd. Jan 2009 Joined Monex Group, Inc. Feb 2014 Executive Officer and Head of New Business Planning Office, Monex Group, Inc. May 2014 Director, Monex Ventures Co., Ltd. Sep 2017 Joined Medical Note Inc. Sep 2017 Partner, Arbor Ventures Mar 2018 Director, Medical Note Inc. Dec 2020 Outside Director, the Company (current) Mar 2021 Outside Director, KAYAC Inc. Apr 2021 Partner, DNX Ventures Dec 2021 Outside Director, HENNGE K.K. (current) Mar 2022 Outside Director, Dentsu Soken Inc. (current) Mar 2022 Outside Director (Audit and Supervisory Committee Member), KAYAC Inc. Apr 2025 Venture Partner, DNX Ventures (current)

Apr 1998 Joined Citibank, N.A., Tokyo Branch Oct 1999 Joined Goldman Sachs Securities Co., Ltd., Tokyo Branch Aug 2000 Joined Members Co., Ltd. (seconded to EC-watch.com Inc. as CFO) Sep 2001 Joined Bain & Company, Inc. Apr 2003 Joined Livedoor Co., Ltd. Jul 2008 Joined Industrial Growth Platform, Inc. (IGPI) Jan 2012 Partner and Managing Director, IGPI Jun 2017 Representative Director and CIO, JBIC IG Partners Co., Ltd. Apr 2018 Outside Director, NewsPicks, Inc. Oct 2018 Director, JB Nordic Ventures Oy Jun 2020 Outside Director, B-Bit Inc. (current) Jun 2022 Outside Director, INCLUSIVE Inc. (current) Mar 2024 Outside Director, the Company (current) Oct 2024 Co-Partner and CLO, IGPI Group (current) Oct 2024 Managing Director, IGPI Mar 2025 Outside Audit & Supervisory Board Member, Third Intelligence Inc. (current) Dec 2025 Representative Director and CEO, IGPI (current)

Apr 1990 Joined Dentsu Inc. (currently Dentsu Group Inc.) May 2008 General Manager, Television Network Division 3, Dentsu Inc. Oct 2010 CEO, Dentsu Media Thailand (seconded, based in Bangkok) Apr 2015 Managing Director, Dentsu Media APAC (seconded, based in Bangkok) Jul 2017 Center Director, Global Business Center, Dentsu Inc. (currently Dentsu Group Inc.) Jan 2019 CEO, dentsu X Global (seconded, based in London) Jan 2021 General Manager, Business Produce Bureau, Dentsu Inc. Jan 2022 Executive Officer, Dentsu Inc. Jan 2022 Outside Director, BS-TBS Inc. (current) Jun 2022 Director, J-WAVE Inc. (current) Jan 2023 Director, Dentsu Sports International Inc. (current) Jan 2024 President, dentsu Japan Media and Sports & Entertainment Jan 2024 Managing Executive Officer (Media and Content), Dentsu Inc. Jan 2025 President, dentsu Japan Media/Sports & Entertainment (current) Jan 2025 Managing Executive Officer (Media/Sports & Entertainment), Dentsu Inc. (current) Oct 2025 Chairperson, Media Committee, Japan Advertising Agencies Association (current) Jan 2026 Director, Dentsu Digital Inc. (current) Mar 2026 Director, the Company (current)

Apr 1980 Joined Taiyo Fishery Co., Ltd. (currently Umios, Inc.) Apr 2012 General Manager, Administration Division, Maruha Nichiro Foods, Inc. (currently Umios, Inc.) Apr 2014 General Manager, Logistics Division, Maruha Nichiro Corporation (currently Umios, Inc.) Nov 2014 General Manager, Risk Management Division, Maruha Nichiro Corporation (currently Umios, Inc.) Apr 2018 Advisor, Daito Gyorui Co., Ltd. Jun 2018 Director (Full-time Audit and Supervisory Committee Member), Daito Gyorui Co., Ltd. Dec 2020 Full-time Audit & Supervisory Board Member, the Company (current) Mar 2026 Audit & Supervisory Board Member, Septeni Co., Ltd. (current)

Oct 1993 Joined Chuo Audit Corporation (currently PwC Japan LLC) Apr 1997 Registered as Certified Public Accountant Aug 2000 Joined Audit Corporation Fuji Accounting Office (currently Moore Mirai Audit Corporation) Aug 2003 Joined PwC Advisory LLC Nov 2007 Joined Legal Training and Research Institute of the Supreme Court of Japan Dec 2008 Registered as attorney-at-law (Tokyo Bar Association) Jan 2009 Joined Okuno & Partners Apr 2015 Representative, Kojima Law & Accounting Office Jun 2015 Outside Director (Audit and Supervisory Committee Member), Nihon Kagaku Kogyo Co., Ltd. Dec 2015 Outside Audit & Supervisory Board Member, the Company (current) Mar 2020 Outside Director (Audit and Supervisory Committee Member), B-Lot Co., Ltd. (current) Mar 2020 Outside Audit & Supervisory Board Member, Secure Co., Ltd. (current) Jan 2021 Representative Partner, Trident Law Corporation (current) Jun 2024 Outside Director (Audit and Supervisory Committee Member), Welldish Co., Ltd. (current)

Apr 2002 Joined Legal Training and Research Institute of the Supreme Court of Japan Oct 2003 Registered as attorney-at-law (Second Tokyo Bar Association); joined Mori Hamada & Matsumoto Jan 2011 Partner, Mori Hamada & Matsumoto (current) Apr 2014 Associate Professor, Graduate School of Law, Waseda University Dec 2019 Outside Audit & Supervisory Board Member, the Company (current)

Apr 1994 Joined General Sekiyu K.K. Nov 2005 Credit Control Advisor, Asia Pacific Region, ExxonMobil Apr 2015 General Manager, Internal Control Division, Zixis Corporation May 2016 Senior Manager, Integration Promotion and Group Management Preparation Office, Tonen General Sekiyu K.K. (currently ENEOS Corporation) Oct 2016 Internal Audit Manager, Amazon Japan G.K. Aug 2019 General Manager, Internal Audit Division, Nissan Motor Co., Ltd. Apr 2021 Chief Internal Auditor (Head of Global Manufacturing Audit and Japan/ASEAN Audit), Nissan Motor Co., Ltd. Aug 2022 Executive Director, DJN Internal Audit Office, Dentsu Group Inc. Jan 2023 Executive Officer in charge of Internal Audit, dentsu Japan Mar 2023 Audit & Supervisory Board Member, CARTA HOLDINGS, Inc. Jan 2024 Chief Internal Audit Officer, Dentsu Group Inc. Mar 2024 Audit & Supervisory Board Member, the Company (current) Jan 2025 Global Chief Internal Audit Officer, Dentsu Group Inc. (current)