Tennant Company ERP Issues Lead to Stock Plunge and Investigation
Analysis based on 10 articles · First reported Mar 19, 2026 · Last updated Mar 27, 2026
The market reacted swiftly to Tennant Company's announcement, erasing about $343 million of its market capitalization. This event highlights the importance of transparent corporate disclosures regarding operational challenges, especially those impacting financial performance.
On February 24, 2026, Tennant Company's stock price plummeted by 23% after the company disclosed severe functionality issues with its new Enterprise Resource Planning (ERP) system in North America. This led to a significant year-over-year decrease in GAAP net income for 2025 and a net loss in Q4 2025, with an estimated $30 million impact on net sales. The problems, which began in early November, limited the company's ability to enter orders, ship products, and service customers. In response, national shareholders rights firm Hagens Berman initiated an investigation into whether Tennant Company violated federal securities laws by potentially concealing crucial information from investors.
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