Nidec Corporation Leadership Transition Following Accounting Practices Disclosure

Nidec Corporation confirmed a major leadership transition on February 26, as founder and chairman emeritus Shigenobu Nagamori stepped down from all remaining roles within the company. The decision comes amid the disclosure of inappropriate accounting practices and an ongoing corporate governance review. Nidec Corporation stated that Mr. Nagamori had already relinquished his representative authority in December 2025 in response to the accounting matter, signaling an earlier shift in executive responsibilities.

Resignation of Shigenobu Nagamori

Shigenobu Nagamori officially resigned from his position as chairman emeritus and from all other assignments at Nidec Corporation on the same day as the announcement. Previously, he had stepped down from the Board of Directors and transitioned to a part-time chairman emeritus role after surrendering his representative authority in December 2025.

Statement on Corporate Responsibility

Commenting on his departure, Mr. Nagamori stated, “I decided to resign from chairman emeritus and all other assignments to show my strong determination to do whatever I can for Nidec to realize rehabilitation and become a brilliant corporate group”. His resignation ahead of the anticipated third-party committee report underscores the seriousness of the inappropriate accounting practices issue and its governance implications for Nidec Corporation.

Accounting Practices and Third-Party Review

The leadership transition at Nidec Corporation follows the disclosure of inappropriate accounting practices that prompted heightened scrutiny. To address concerns surrounding corporate governance and transparency, the company established a third-party committee to investigate the ambiguity of the practices. The committee is expected to release its findings by the end of February, providing clarity on the circumstances and recommending corrective measures if necessary.

Governance and Transparency Measures

By initiating an independent review, Nidec Corporation aims to reinforce corporate governance standards and restore stakeholder confidence. The resignation of its founder prior to the report’s publication is viewed as part of broader efforts to demonstrate accountability and support organizational rehabilitation.

Shareholding and Ongoing Influence

Despite stepping down from all official positions, Shigenobu Nagamori remains a significant shareholder of Nidec Corporation, holding an 8.61% stake. Additionally, an asset management company in which he serves as a representative is also among the major shareholders. While he no longer occupies an executive or emeritus role, his equity position indicates continued financial interest in the long-term performance of Nidec Corporation.

The recent developments mark a pivotal governance moment for Nidec Corporation as it navigates reputational risk, shareholder expectations, and structural reforms aimed at ensuring sustainable corporate recovery.