Management Team

Amotz Shemi, PhD


Dr. Shemi is Silenseed’s co-founder and has served as the company’s Chairman of the Board of Directors and Chief Executive Officer since incorporation in 2008. Prior to founding Silenseed, from 2005 to 2008, Dr. Shemi served as the Senior Vice President Technologies at Medinol Ltd., a world leader in design, development and manufacturing of stent and stent delivery systems. Prior to that time, Dr. Shemi was the chief executive of several private Israeli technology companies, including Color-Chip Ltd. Dr. Shemi holds a Ph.D. degree in Physics from the Tel Aviv University. He is a single author and co-author of many scientific papers and a single inventor and co-inventor of more than a dozen of patents.

Yafit Keret
Yafit Keret


As CFO, CPA and senior manager, Yafit Keret has over 14 years of experience in the business and financial management of hi-tech and clean-tech companies, including CFO positions in BPT Pure Technology, Tiltan System Engineering, ESI Expert Systems Industries, and GeoSim Systems. Her expertise includes both financial operation of parent companies as well as establishment and management of subsidiaries located abroad. She has extensive knowledge in founding companies, exit procedures, fundraising, and business development. Her work includes daily financial management which consists of, but is not limited to, auditing, preparation of financial reports, issues concerning tax aspects, as well as active participation in board meetings. Yafit is the founder of Proximo, a successful CFO & Financial Services boutique.

Ettie Pirak, PhD

Director, Drug Development

Dr. Ettie Pirak, Ph.D. is a co-inventor and developer of the chimeric monoclonal antibody drug Cetuximab (Erbitux(R)); Dr Pirak serves as the Vice President of Technologies at Meytav Technological Incubator. Dr. Pirak founded Innovo Biotechnologies in 1998. She also serves as Senior Advisor at Vacciguard and Alon Therapeutics. She was also a Director of Research Collaboration at Compugen. Dr. Pirak serves as a Director of Quinova Rx Ltd., Angio B Ltd., Novotyr therapeutics and Protea. She serves as Member of Scientific Advisory Board at Allosterix Ltd. Dr. Pirak serves as a Director of Thera-P Ltd. Dr. Pirak was a Scientist at Weizmann Institute in the Chemical Immunology Department. She served as a Director of Collplant Holdings Ltd. Dr. Pirak worked for eight years as a Researcher at the Department of Chemical Immunology at the Weizmann Institute of Science. Dr. Pirak holds a Ph.D. from the Faculty of Chemistry, University of Louvain la Neuve, Belgium.