Mercari, Inc. (“Mercari”) announces that, at the 13th General Meeting of Shareholders held on September 25, 2025, it resolved to shift to a new executive structure and newly appoint Masahiro Kotosaka as a director.
Name and career summary of new director
| Name | Career Summary |
| Masahiro Kotosaka Outside Director (Date of birth: January 14, 1982) |
Sep. 2004: Joined McKinsey & Company, Inc. Apr. 2013: Associate Professor of College of Business Administration, Ritsumeikan University Apr. 2015: Outside Director of Appirits Inc. Mar. 2016: External Audit & Supervisory Board Member of Uzabase, Inc. Apr. 2016: Associate Professor of Faculty of Policy Management, Keio University Jun. 2017: Outside Corporate Auditor of RAKSUL INC. Dec. 2018: External Director of Euglena Co., Ltd. (current position) Mar. 2019: External Director (Audit & Supervisory Committee member) of Uzabase, Inc. Oct. 2019: Outside Director (Audit & Supervisory Committee Member) of RAKSUL INC. (current position) Jun. 2023: Outside Director (Audit & Supervisory Committee Member) of SRE Holdings Corporation (current position) Apr. 2025: Professor of Faculty of Policy Management, Keio University (current position) |
Reasons for nomination and overview of expected role
As a business scholar, Masahiro Kotosaka has extensive experience in corporate management, cultivated through his expertise in business strategy and his experience as a management consultant. He also possesses extensive knowledge and profound insight into the fields of risk management, compliance, and corporate governance cultivated through his experience as an outside officer at listed companies. Mercari has therefore nominated him as a candidate for Outside Director, expecting that he will draw on his knowledge and experience to contribute to strengthening the supervising and decision-making functions of the Board of Directors of Mercari.
New executive structure
Starting September 25, 2025, the executive structure of Mercari will be as follows.
Director
| Name | New Title | Old Title |
| Shintaro Yamada | Director, Representative Executive Officer and CEO | Director, Representative Executive Officer and CEO |
| Fumiaki Koizumi | Director, President / CEO of Kashima Antlers F.C. Co., Ltd. | Director, President / CEO of Kashima Antlers F.C. Co., Ltd. |
| Sayaka Eda | Director, Executive Officer, Senior Vice President of Corporate, and Chief Financial Officer | Director, Executive Officer, Senior Vice President of Corporate, and Chief Financial Officer |
| Mayumi Tochinoki | Director | Director |
| Makiko Shinoda | Outside Director | Outside Director |
| Takuya Kitagawa | Outside Director | Outside Director |
| Kazuhiko Toyama | Outside Director | Outside Director |
| Mayumi Umezawa | Outside Director | Outside Director |
| Shiho Konno | Outside Director | Outside Director |
| Kikka Hanazawa | Outside Director | Outside Director |
| Kumi Fujisawa | Outside Director | Outside Director |
| Masahiro Kotosaka | Outside Director | (New appointment) |
Executive Officers
| Name | New Title | Old Title |
| Shintaro Yamada* | Director, Representative Executive Officer and CEO / CEO of Mercari, Inc. (US) | Director, Representative Executive Officer and CEO / CEO of Mercari, Inc. (US) |
| Sayaka Eda* | Director, Executive Officer, Senior Vice President of Corporate, and Chief Financial Officer / Director of Merpay, Inc. | Director, Executive Officer, Senior Vice President of Corporate, and Chief Financial Officer / Director of Merpay, Inc. |
| Masato Yamamoto | Executive Officer, Senior Vice President of Japan Business / Director of Merpay, Inc. / Director of Mercoin, Inc. | Executive Officer, Senior Vice President of Japan Business / Director of Merpay, Inc. / Director of Mercoin, Inc. |
| Shuji Kawano | Executive Officer, Senior Vice President of Management Strategy, Chief Executive Officer (Work) | Executive Officer, Senior Vice President of Management Strategy, Chief Executive Officer (Work) |
Note: Asterisk indicates executive officers for whom the role of director is a concurrent role.
Through this new Board of Directors structure, formed in consideration of balance of knowledge, experience, and abilities, gender balance, and other aspects of diversity, Mercari will aim to realize highly effective supervision of management and continue to take on bold challenges under its Group mission: “Circulate all forms of value to unleash the potential in all people.”