Tomasz Siemiątkowski

Member of the Supervisory Board

Associate Professor, Habilitated Doctor, attorney-at-law – graduated from one of the oldest secondary schools in Poland (the nearly 850-year-old Marshal Stanisław Małachowski High School in Płock, the city of his childhood and youth). Graduate (1994) of the Faculty of Law and Administration at the University of Warsaw (summa cum laude), since 1999 attorney at the Bar Association in Warsaw. Doctor of Economic Sciences, habilitated doctor of legal sciences, professor at the Warsaw School of Economics (head of the Department of Economic Law). In 2000–2021, he was a research and teaching staff member at the Faculty of Law and Administration of Cardinal Stefan Wyszyński University in Warsaw (since 2010 as an associate professor). Member of the Civil Law Codification Commission (2015–2019 term, dissolved in December 2015). He established the Academy of Companies Postgraduate Studies at the Warsaw School of Economics, which he has headed since its inception. From 1999 to 2011, he lectured on corporate governance (in terms of Polish and American law) in the MBA program run jointly by the Warsaw School of Economics and the University of Minnesota (in 2007, he received the WEMBA Outstanding Instructor First Prize, and in 2008 and 2010, the WEMBA Outstanding Instructor Second Prize). In 2012, he was also recognized by Polish students, receiving the “Inspiration of the Year” award from the Independent Monthly Magazine of SGH Students “Magiel.” He has been a visiting professor at renowned foreign research centers: University of Minnesota, Carlson School of Management (visiting professor, 1999), University of California – Berkeley, Boalt Hall School of Law (visiting scholar – scholarship holder of the Foundation for Polish Science, 2002–2003) and Max Planck Institute for Comparative and International Private Law in Hamburg (visiting fellow – MPI scholarship holder, 2004). As part of his academic work abroad, he studied American corporate governance under Professor R. Buxbaum (Boalt Hall School of Law, UC Berkeley) and comparative corporate governance under Professor K. J. Hopta (MPI, Hamburg). He also received a Kosciuszko Foundation Fellowship to the University of California at Berkeley (2004). He has participated in numerous international conferences and scientific symposia (including Columbia, Hong Kong Polytechnic University, New York University, Princeton, Stanford, and Tokyo University).

Professor Siemiątkowski's expertise in legal practice – since 2009 at the Głuchowski Siemiątkowski Zwara law firm, and previously at the Tomasz Siemiątkowski Law Firm, two American law firms, and the T. Siemiątkowski Law Firm, Advocates and Advisors – focus on corporate law, corporate governance, mergers, acquisitions and restructuring, capital market law, arbitration, commercial litigation and health care law. He participated, among other things, in the preparation of the prospectus for the first company established under foreign law whose shares were admitted to public trading in Poland, represented the Polish Confederation of Private Employers “Lewiatan” in a case before the Constitutional Court concerning the introduction of mandatory official margins and rules for pricing imported medicines, obtaining a favorable ruling for his client, and participated in the development and implementation of the first concept of dividend payment in “bonus” shares on the Polish public market. He served as a member of the supervisory board of, among others, PKO BP S.A. (and chairman of the audit committee of that board), PLL LOT S.A. and Polbank S.A. In 2013–2017, he was chairman of the supervisory board of Polska Grupa Zbrojeniowa S.A. In addition, he was a member of the supervisory board of Royal Bank of Scotland Polska S.A. (2016–2019). From 2022 to 2024, he was a member of the supervisory board of SPR Wisła Płock S.A. (on behalf of the owner – the Municipality of Płock). Currently, he is the chairman of the Energy for Europe Foundation (FEDE) Council, chairman of the PZPN Football Arbitration Court, and vice-chairman of the PZPN Polish Football Foundation Council. In addition, since February 2024, he has once again been a member of the supervisory board of Polska Grupa Zbrojeniowa S.A. (vice – chairman). In October 2024, he was appointed by the Minister of Justice, Professor Adam Bodnar, to the position of Member of the Advisory Team to the Minister of Justice on European Union Law. Co-author of a draft amendment to the Commercial Companies Code and member of a team of experts working under the leadership of Professor S. Sołtysiński (2001–2003). In 2003–2005, he was a member of a task force appointed by the Chairman of the Civil Law Codification Commission, which prepared a draft law introducing the European company into the Polish legal system (in this team, he was responsible for developing regulations for a monistic corporate governance system), and then participated as a government expert in parliamentary work on this draft. In December 2009, he was appointed by the Chairman of the Civil Law Codification Commission to the permanent task force of the Civil Law Codification Commission for the amendment of the Commercial Companies Code (co-author of the draft implementation of Directive 2009/109/EC on reporting and documentation in the case of mergers and divisions of companies). In 2011, he was appointed by the Chairman of the Civil Law Codification Commission to the team for company law. Since 2011, he has been a member of the Legislative Commission of the Supreme Bar Council (chairman of the economic and commercial law team of this commission). Professor Siemiątkowski was also the originator and co-author (together with attorney R. Potrzeszcz and Professor P. Wiórek) of the Act on the Control of Certain Investments, adopted by the Parliament almost unanimously in 2015. He also served as legal advisor to a social campaign for historical justice (known as Appeal 141), which between July 2020 and March 2021 led to the adoption of an act amending the act on anti-communist opposition activists and persons repressed for political reasons. This campaign, initiated and carried out by former anti-communist opposition activists (J. M. Goliszewski, L. Stall, and G. Kostrzewa-Zorbasa), made it possible to “contribute” to periods of opposition activity, thereby increasing the basis for calculating the pension and disability benefits of former oppositionists. Professor Siemiątkowski is an arbitrator at the Court of Arbitration at the Polish Chamber of Commerce in Warsaw and the Court of Arbitration at the Polish Confederation of Private Employers “Lewiatan,” as well as a member of the American Law & Economics Association. He is the author of two monographs: Proxy in Commercial Law Companies, (LexisNexis 1999) and Civil Liability in Capital Companies, (C.H. Beck, 2007), co-author and co-editor of a four-volume commentary on the Commercial Companies Code published by LexisNexis – Partnerships (2011), Limited Liability Companies (2011), Joint Stock Companies (2012), Mergers, Divisions and Transformations of Companies (2011), co-author of the Private Law System, vol. 16 – Law of Partnerships, edited by A. Szajkowski, and vol. 17 – Capital Companies Law, edited by S. Sołtysiński, author or co-author of several dozen articles on civil and commercial law, published in, among others, Palestra, Przegląd Prawa Handlowego, Przegląd Sądowy, and Przegląd Ustawodawstwa Gospodarczego. In addition, he is the Chairman of the Editorial Board of the quarterly “Przegląd Corporate Governance” (Corporate Governance Review). In 2016, he was included by Dziennik Gazeta Prawna in the “Ranking of the 50 most influential lawyers in Poland” and awarded the “Golden Paragraph” – a prize granted for outstanding achievements in the field of law (for activities promoting law and the economy). In 2022, he received the “Award for pro bono activities for media freedom in Poland” from the Rzeczpospolita daily (from the laudation: “for his commitment to defending freedom of speech, activities aimed at demonstrating the dangers associated with the entry into force of the so-called LEX TVN”). In 2018, 2020, 2021, and 2022, he was the leader of the Rzeczpospolita Law Firm Ranking in the field of “company law and commercial law.” In 2023, 2024, and 2025, leader in the field of “commercial law, corporate law, mergers, and acquisitions” in this ranking.

Independent Member of the Supervisory Board.