Michael J. Malecek

Chief Legal Officer and Company Secretary at Prothena

Mr. Malecek has served as the Chief Legal Officer and Company Secretary since July 2019. Prior to joining Prothena, Mr. Malecek was Vice President, Deputy General Counsel, Intellectual Property & Litigation of Snowflake, Inc., a position he held from 2018 to 2019. Prior to that (between 2010 and 2017), he was a partner of Kaye Scholer and then Arnold & Porter, international law firms that merged in 2016. He served as co-chair of each of the firms’ intellectual property departments, was managing partner of their Silicon Valley offices, and served on the Executive Committee at each firm. Prior to that, Mr. Malecek was a partner with the law firm Dewey & LeBoeuf, was Vice President and Chief Advocacy Counsel with Affymetrix, Inc., was an Assistant U.S. Attorney, and was an attorney with Latham & Watkins. He clerked for Hon. Robert Doumar, Eastern District of Virginia. Mr. Malecek earned his B.A. from Yale University and his J.D. from the University of Virginia.


  • Chief Legal Officer and Company Secretary

    Current role