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Magdalena Leszczyniecka

Strategic Advisor

Magdalena is the CEO of STC Biologics Inc., which she founded in 2009 with a goal to bring biosimilar products to patients who cannot afford branded equivalents. Since 2009, STC has worked on four biosimilar antibody products, some being developed in-house and others for STC’s partners. As a leader in the biosimilar sector, she presents at key biosimilar business conferences each year, is an strategy advisor to Sectoral Asset Management and  consults on biosimilars for Coleman Research (a company focused on providing market research for buy-side investors). She has three patents relating to biosimilar product optimization, covering methods to achieve fingerprint-like similarity in product quality. STC’s main goal is to bring a biosimilar product to the market with reduced burden of clinical trials by providing fingerprint analytical data on product similarity. 

Magdalena has a broad drug development experience in small molecules and various biologics including IgG1, IgG4, two Fc fusion proteins, antibody single chains, and antibody targeted liposomal formulations. She gained start up experience prior to STC working for venture capital firms: Flagship Ventures and Atlas Ventures. She has led the development of MM-121 and anti-HER3 antibody programs at Merrimack Pharmaceuticals. In 2002, she started her scientific career at Novartis Pharmaceuticals as a project leader for two oncology development products.  She received her Ph.D. from a joined program between Columbia University and NYU, an MBA from Babson College, and a B.S in Biochemistry from Rutgers University.

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