GMM Pfaudler appoints Gregory Gelhaus as Group CEO
GMM Pfaudler Limited has appointed Mr. Gregory Gelhaus as Group CEO and Key Managerial Personnel, effective May 21, 2026, subject to shareholder ratification. Concurrently, the board restructured its Senior Management Personnel, appointing Mr. Ankit Nayyar as Deputy CFO and Mr. Massimo Serapioni as CEO of Corrosion-Resistant Technologies. Additionally, Mr. Manish Shah and Mr. Ulf Wittmann ceased to be SMPs due to organizational changes but remain employed.

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GMM Pfaudler Limited has announced the appointment of Mr. Gregory Gelhaus as its Group Chief Executive Officer (CEO) and Key Managerial Personnel (KMP). The appointment, effective May 21, 2026, was approved by the Board of Directors at their meeting held on the same date. This decision is subject to ratification by the shareholders at the company's ensuing 63rd Annual General Meeting.
Key Managerial Personnel Appointment
Mr. Gelhaus has been serving as the Chief Transformation Officer of gmm pfaudler Group and an SMP since May 5, 2025. Prior to joining the company, he held the position of Chief Operating Officer for Asia Pacific and Central Europe at Global Blue. His professional background also includes roles at PricewaterhouseCoopers, Alvarez & Marsal, and Kirkham Group Pte Ltd. Mr. Gelhaus holds a BBA in Accounting from the Ross School of Business at the University of Michigan and an MBA from the Wharton School at the University of Pennsylvania. He is also a Certified Public Accountant (CPA) in the State of New York. The company disclosed that Mr. Gelhaus is part of the promoter family, being the son-in-law of Mr. Ashok Patel and brother-in-law of Mr. Tarak Patel.
Changes in Senior Management Personnel
Concurrent with the leadership change at the top, GMM Pfaudler has restructured its Senior Management Personnel (SMP). The board approved the appointment of Mr. Ankit Nayyar as Deputy Chief Financial Officer and Mr. Massimo Serapioni as Chief Executive Officer-Corrosion-Resistant Technologies, effective May 21, 2026.
Mr. Nayyar was appointed as the Deputy Chief Financial Officer at the company effective May 11, 2025. He previously served as the CFO of PI Health Sciences and held leadership roles at Pfizer, Morgan Stanley Capital, and Tata AIG Life Insurance. He is a Chartered Accountant with a Master’s degree in Accounting & Finance from Manchester Business School.
Mr. Serapioni has been the Chief Executive Officer of the Corrosion-Resistant Technologies division since September 15, 2025. Before joining GMM Pfaudler, he served as General Manager – Business Unit Recycling at Coperion. He holds a BBA and a Master’s degree in Information, Media and Technology Management from the University of St. Gallen, along with a Master’s degree from the Stockholm School of Economics.
Cessation of Senior Management Personnel
The company also announced the cessation of Mr. Manish Shah and Mr. Ulf Wittmann as SMPs effective May 21, 2026. This change is attributed to modifications in the organizational structure. Both individuals will continue their employment with the company despite ceasing to hold the SMP designation.
| Name | Designation | Status | Effective Date |
|---|---|---|---|
| Mr. Gregory Gelhaus | Group Chief Executive Officer | Appointment | May 21, 2026 |
| Mr. Ankit Nayyar | Deputy Chief Financial Officer | Appointment | May 21, 2026 |
| Mr. Massimo Serapioni | CEO-Corrosion-Resistant Technologies | Appointment | May 21, 2026 |
| Mr. Manish Shah | Senior Management Personnel | Cessation | May 21, 2026 |
| Mr. Ulf Wittmann | Senior Management Personnel | Cessation | May 21, 2026 |
Historical Stock Returns for GMM Pfaudler
| 1 Day | 5 Days | 1 Month | 6 Months | 1 Year | 5 Years |
|---|---|---|---|---|---|
| -5.60% | -8.26% | -12.03% | -32.16% | -36.24% | -52.45% |
How might Gregory Gelhaus's background in business transformation and restructuring shape GMM Pfaudler's strategic priorities, particularly in its international operations?
Given that Gelhaus is part of the Patel promoter family, how could this leadership transition impact corporate governance perceptions and minority shareholder confidence?
What does the restructuring of Senior Management Personnel, including the cessation of Manish Shah and Ulf Wittmann as SMPs, signal about GMM Pfaudler's evolving organizational strategy?


































