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Lenz & Staehelin

Work +41 58 450 80 00
Fax +41 58 450 80 01
Geneva, Lausanne, Zurich

Dr Rudolf Tschäni

Work +41 58 450 80 00
Lenz & Staehelin

Work Department

Corporate and M&A, Public Tender Offers, Private Equity, Corporate Governance, Banking and Finance, Capital Market and Commercial Litigation and Arbitration (particularly M&A Litigation).


Rudolf Tschäni is regarded as a leading expert in the market. Apart from advising on transactions generally, he concentrates on advising the board and management in takeover and stress situations as well as generally in the area of corporate governance. Furthermore, he has extensive experience as board member and is often nominated as arbitrator in national and international arbitration procedures, in particular in disputes relating to mergers and acquisitions.


Admission to Zurich Bar, Admission to New York Bar, Partner at Lenz & Staehelin, since 2018 Senior Counsel at Lenz & Staehelin.


German, English, French.


University of Zurich (lic. iur.), College of Europe, Brugge (H.E.E), University of Zurich (Dr. iur.), Harvard Law School (LL.M.).


Capital markets

Within: Capital markets

One of the 'leading practices in Switzerland', Lenz & Staehelin's 'depth and quality is world class'. Equity transactions, bond offerings, securitisation, derivatives, convertibles and structured notes are among its areas of expertise. 'Stand-out performerJacques Iffland advised ObsEva on a $60m private investment of shares and short-term warrants regarding a public equity transaction with several investors, while Rudolf Tschäni and Hans-Jakob Diem assisted Sika with its CHF1.65bn issuance of senior convertible bonds on SIX Swiss Exchange. 'Knowledgeable and thorough' derivatives and structured products expert François Rayroux and Zurich co-lead Patrick Schleiffer are other names to note.

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Commercial, corporate and M&A

Within: Leading individuals

Rudolf Tschäni - Lenz & Staehelin

Within: Commercial, corporate and M&A

Lenz & Staehelin's 'highly recommended, hands-on' team stands out for its 'very thorough levels of preparation' and 'impeccable integrity', 'combining exceptional lawyers with tremendous collegiality and client service'. Focus areas include private and public M&A, corporate governance, and private equity transactions. In a recent highlight, 'world-class M&A lawyerHans-Jakob Diem assisted Saudi Basic Industries with its upcoming 24.99% share capital acquisition in Clariant. Rudolf Tschäni is another key practitioner, while clients further recommend 'extraordinarily smartTino Gaberthüel; 'committedBeat Kühni, who has 'an encyclopaedic knowledge'; 'clear, proactive and quickStephan Erni; as well as 'efficient and flexible' Geneva-based Guy Vermeil.

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