Hans-Jakob Diem is regarded as a market-leading expert in Mergers & Acquisitions, corporate law and securities law matters. He has extensive experience in advising clients in acquisitions and disposals, leveraged buy-outs, public tender offers, mergers, spin-offs, takeover battles and proxy fights, both domestic and cross-border. He represents issuers and underwriters in IPOs, rights issues and other capital market transactions and represents companies and investors in takeover and securities law-related proceedings. In addition, he regularly advises boards of directors and executive management teams in corporate governance, corporate reporting and disclosure matters.

Besides his corporate practice, Hans-Jakob Diem is a lecturer at the Universities of Basel, Zurich and St. Gallen. He is a regular speaker at conferences on M&A, securities law and corporate law topics and the author of various legal textbooks, commentaries and specialist articles in these fields.

Hans-Jakob Diem completed his studies of law at the University of Basel in 1995 and obtained an LL.M. from the London School of Economics and Political Science in 1998.

Hans-Jakob Diem speaks German, English and French. He is registered with the Zurich Bar Register and admitted to practice in Switzerland.