Marek Ciszewski, J.D.

Managing Director


Marek joined Liolios after 25 years of Wall Street experience as a portfolio manager and equity analyst with leading financial institutions. Most recently, he worked at BMO Global Asset Management, one of the world’s largest asset managers, as the global head of healthcare research. His other experience includes Vestor Capital, Nesbitt Burns Securities and Perritt Capital Management.

Throughout his investment career, Ciszewski acquired extensive experience in fundamental security analysis and selection, portfolio management and investment strategy. This was underpinned by his innate curiosity and relentless focus on understanding the various business models in the life sciences industry.

Ciszewski’s understanding of investor relations and capital markets is further complemented by his biopharma industry experience. He has held various senior corporate roles, including vice president of corporate development at Verastem, an oncology-focused biopharmaceutical firm, and head of investor relations and corporate communications at Epirus Biopharmaceuticals, a biosimilars pioneer.

Marek’s comprehensive knowledge of life sciences, investor relations and capital markets will play an important role in expanding Liolios’ expanding life sciences practice. His passion for his craft and unique combination of skills, experience and education make him invaluable to companies both preparing to go public and existing public companies that require deep industry knowledge along with a comprehensive suite of IR services.


Enjoys reading, writing, and competing in triathlons. He is also a lifelong soccer player, and plans to play until they carry him off the field feet first.

Milestones & Tidbits

  • Emigrated from Poland to Chicago suburbs with parents and brother in 1983.
  • Became a US citizen in 1988.
  • Writing a book about his father’s leadership of a movement and subsequent imprisonment for fighting to bring down Communism in the early 1980's Poland.
  • Has completed several Ironman races and is training to qualify for the Ironman World Championships in Kona.
  • Speaks Polish at home.


B.S. Economics and Finance, DePaul University; J.D., Chicago-Kent School of Law



Save the Date for Our 8th Annual Gateway Conference

September 4-5, 2019 – Four Seasons San Francisco