
Co-Managing Director Switzerland | Head of Sales & Business Development
Marco Schwager
Marco Schwager is Head of Sales & Business Development as well as Co-Managing Director at Computershare Switzerland. In this role, he is responsible for strategic business development, expanding customer relationships, and positioning the company in the Swiss market. Together with his team, he develops innovative solutions to meet the evolving needs of issuers and investors. Previously, Marco Schwager led all operational processes related to the execution of general meetings for seven years as Head of General Meetings. He played a key role in advancing and digitizing this central business area and ensured smooth implementation with his team – from planning to on-site execution. Before joining Computershare, Marco Schwager worked at SIX SIS AG as Deputy Team Leader in the Income/Corporate Actions department, focusing on the US and Canadian markets.
Co-Managing Director Switzerland | Head of Operations & Registry
Chanthara Sihabouth
Since 1 July 2025, Chanthara Sihabouth has served as Co-Managing Director for the Swiss business. In his role as Head of Operations & Registry, he oversees operational management and the share register business unit. With more than 18 years of experience in registered shares, capital market transactions, and corporate actions across both Swiss and international markets, his expertise lies in ensuring high-quality client service, implementing technical and regulatory requirements, and developing client-focused solutions. Before assuming his current role, he led the share register business at Computershare for over eight years. Prior to that, Chanthara held various roles at SIX SAG AG for nearly ten years, including in employee share plans, and most recently served as Deputy Head of Registry. Chanthara Sihabouth holds an Advanced Federal Diploma of Higher Education in BA.
Head General Meetings
Mladen Pranjic
Mladen Pranjic serves as Head of General Meetings and is responsible for all operational processes related to general meetings. In this role, he leads a dedicated team and ensures that each general meeting is professionally organized and thoroughly prepared to guarantee a smooth execution on site. Prior to his current role, Mr. Pranjic served for seven years as Deputy Head of General Meetings. During this time, he gained valuable experience and developed in-depth expertise in the area of general meetings. His many years of service and close collaboration with key clients have provided him with a deep understanding of the needs and expectations of both clients and shareholders.
Deputy Head General Meetings
Yves Ackermann

Deputy Head Share Register
Michael Lehmann


Günes Bal
Account Manager


Yvonne Brügger
Account Manager


Jael Concu
Account Manager


Benjamin Dubler
Product Manager


Sina Hamman
Business Development Associate


Patrick Kälin
Product Manager


Silas Metzler
Project Manager


Ferdinando Paone
Project Manager


Martina Prenka
Project Manager


Tim Rochel
Account Manager


Simon Schupfer
Business Development Associate


Nina Siegrist
Project Manager


Aqsa Syed
Project Manager