Komori
Changes in Officers8609OKASAN SECURITIES GROUP INC.Financials (excluding banks)

Notice Regarding Organizational Reform and Changes in Officers at the Subsidiary (Securities Japan)

The organization will be restructured in connection with the absorption-type merger of a subsidiary, and multiple directors, Audit & Supervisory Board members and executive officers will change. Tanaka Mitsuru (田中充) will change from Representative Director, Chairman and President to Representative Director and President. The new company will have a structure comprising 6 directors and 1 Audit & Supervisory Board member.

Worth reading
45Recurring
0–100. This measures how worthwhile something is to read, not how good or bad the company is.
Direction
Mixed performance
Direction inferred from the company’s description.
Scale
—
Displayed only when the document provides numerical figures.
Wording
Definitive
How definitive the wording is.

Who is moving to which position

Resolved 16 July 2026

Incoming appointee

4 items
Scheduled Appointment DateEffective 1 August 2026 (the new company's business commencement date)
Kagiyama Yoshinari (鍵山好成)
Previous positionSenior Managing Director, 岡三ビジネス&テクノロジー㈱
New positionDirector and Executive Officer
Sato Koji (佐藤公治)
Previous positionDirector and Chair of the Board of Directors, 岡三ビジネス&テクノロジー㈱
New positionDirector and Chair of the Board of Directors
Takeuchi Rui (竹内塁)
Previous positionCorporate Officer, OKASAN SECURITIES GROUP INC.; Corporate Officer, 岡三証券㈱
New positionStatutory Auditors
Nakao Kenji (中尾健二)
Previous positionDirector, 岡三ビジネス&テクノロジー㈱
New positionExecutive officers

Departing officer

7 items
Date of departureEffective 31 July 2026
Tsuchiya Fumiaki (土屋文明)Next role stated
Former PositionExecutive Vice President and Director
New positionRepresentative Director and President, 証券ジャパンウェルスマネジメント㈱
Hayakawa Masahiro (早川政博)Next role stated
Former PositionStatutory Auditors
New positionRetirement
Hosoda Ken (細田研)Next role stated
Former PositionExecutive officers
New positionCorporate Officer, 岡三ビジネス&テクノロジー証券㈱
Morita Yasuho (森田保穂)Next role stated
Former PositionExecutive officers
New positionCorporate Officer, 証券ジャパンウェルスマネジメント㈱
Kato Seiya (加藤清也)Next role stated
Former PositionExecutive officers
New positionDirector, 証券ジャパンウェルスマネジメント㈱
Furuhata Junichi (古旗淳一)Next role stated
Former PositionExecutive officers
New positionDirector, 証券ジャパンウェルスマネジメント㈱
Banno Katsukuni (坂野勝国)Next role stated
Former PositionExecutive officers
New positionDirector, 証券ジャパンウェルスマネジメント㈱

“Next role stated” means the document names the position the person holds after stepping down. It does not necessarily mean they are leaving the company.

Whether the incumbent will remain in office (whether they will retain their position)

Tsuchiya Fumiaki (土屋文明) will not remain on the Board of Directors. Hayakawa Masahiro (早川政博) will retire. Hosoda Ken (細田研), Morita Yasuho (森田保穂), Kato Seiya (加藤清也), Furuhata Junichi (古旗淳一) and Banno Katsukuni (坂野勝国) will also not remain on 証券ジャパン's Board of Directors.

Directors after the change6Number
Reason for change

The organizational restructuring and changes in officers will be implemented in connection with the absorption-type merger of 岡三ビジネス&テクノロジー株式会社 and the integration of management.

Details of organizational changes

The Secretarial Office, Corporate Division, Business Solutions Division, Platform Solutions Division, DX Development Department and Human Resources Business Department will be established. The Comprehensive Planning Department, General Affairs and Human Resources Department, Finance and Accounting Department, Securities Operations Department, Operations Center Department, Shared Services Center Administration Department, Distribution Operations Department, Securities Administration Department and Customer Support Department will be placed under the respective divisions. The Asset Management Department will be integrated into the Products Department. The divisions and functions of 岡三ビジネス&テクノロジー㈱ will be integrated, and the Internal Audit Department, Compliance Department and Systems Administration Department will be established.

Who is moving to which position
ItemDetails
Resolution date16 July 2026
Scheduled Appointment DateEffective 1 August 2026 (the new company's business commencement date)
Date of departureEffective 31 July 2026
Name of appointeeKagiyama Yoshinari (鍵山好成), Sato Koji (佐藤公治), Takeuchi Rui (竹内塁), Nakao Kenji (中尾健二)
Appointee's new positionDirector and Executive Officer, Director and Chair of the Board of Directors, Statutory Auditors, Executive officers
Appointee's previous positionSenior Managing Director, 岡三ビジネス&テクノロジー㈱, Director and Chair of the Board of Directors, 岡三ビジネス&テクノロジー㈱, Corporate Officer, OKASAN SECURITIES GROUP INC.; Corporate Officer, 岡三証券㈱, Director, 岡三ビジネス&テクノロジー㈱
Name of departing officerTsuchiya Fumiaki (土屋文明), Hayakawa Masahiro (早川政博), Hosoda Ken (細田研), Morita Yasuho (森田保穂), Kato Seiya (加藤清也), Furuhata Junichi (古旗淳一), Banno Katsukuni (坂野勝国)
Former position of departing officerExecutive Vice President and Director, Statutory Auditors, Executive officers, Executive officers, Executive officers, Executive officers, Executive officers
New position of departing officerRepresentative Director and President, 証券ジャパンウェルスマネジメント㈱, Retirement, Corporate Officer, 岡三ビジネス&テクノロジー証券㈱, Corporate Officer, 証券ジャパンウェルスマネジメント㈱, Director, 証券ジャパンウェルスマネジメント㈱, Director, 証券ジャパンウェルスマネジメント㈱, Director, 証券ジャパンウェルスマネジメント㈱
Whether the incumbent will remain in officeTsuchiya Fumiaki (土屋文明) will not remain on the Board of Directors. Hayakawa Masahiro (早川政博) will retire. Hosoda Ken (細田研), Morita Yasuho (森田保穂), Kato Seiya (加藤清也), Furuhata Junichi (古旗淳一) and Banno Katsukuni (坂野勝国) will also not remain on 証券ジャパン's Board of Directors.
Reason for changeThe organizational restructuring and changes in officers will be implemented in connection with the absorption-type merger of 岡三ビジネス&テクノロジー株式会社 and the integration of management.
Number of directors after the change6 (number of outside directors: Not disclosed)
Details of organizational changesThe Secretarial Office, Corporate Division, Business Solutions Division, Platform Solutions Division, DX Development Department and Human Resources Business Department will be established. The Comprehensive Planning Department, General Affairs and Human Resources Department, Finance and Accounting Department, Securities Operations Department, Operations Center Department, Shared Services Center Administration Department, Distribution Operations Department, Securities Administration Department and Customer Support Department will be placed under the respective divisions. The Asset Management Department will be integrated into the Products Department. The divisions and functions of 岡三ビジネス&テクノロジー㈱ will be integrated, and the Internal Audit Department, Compliance Department and Systems Administration Department will be established.
Items this document does not state (8)
Appointee's date of birthYear the appointee joined the CompanyNumber of shares held by the appointeeReason for departureReasons for appointmentFiling as an independent officerChange in Corporate Governance StructureSubject to Approval by the General Meeting of Shareholders

These are items the company does not state in this document. We do not leave them blank, nor fill them in from other sources or by inference.

The reasons the company gives

The company's own explanation, not something inferred from the numbers.

To absorb 岡三ビジネス&テクノロジー株式会社 through an absorption-type merger and integrate management. In connection with this, the company will establish the Secretarial Office and various divisions, integrate existing divisions, and integrate the divisions and functions of both companies.

How to read this page

This is not the documentKomori reads the disclosure the company filed and writes this summary. Figures are as stated by the company and are not audited.
Weight is not a verdictIt measures how much this changes what the company had already told the market. It is not a view on the shares.
Corrections happenIf the company reissues this disclosure, the page is rebuilt from the corrected version and the revision number moves up.
Notice Regarding Organizational Reform and Changes in Officers at the Subsidiary (Securities Japan) | OKASAN SECURITIES GROUP INC. (8609) timely disclosure | Komori