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About Us

Mark Ledden, Ph.D., President & CEO, Chairman, Board of Directors

Dr. Ledden is the founding Principal of Kenning Associates.  He brings over a dozen years of experience in strategy and management consulting.

Before founding Kenning Associates, Mark served a variety of Fortune 500 companies in a broad spectrum of industries as a consultant with McKinsey and Company.  His experience includes designing and delivering core business skill programs that blend structured problem solving and interpersonal skills, coaching senior managers to maximize their personal impact and effectiveness during corporate restructuring, mergers, and strategic renewals, and developing strategic communications plans to support post-merger management and a broad range of organizational change efforts.

Dr. Ledden began his career as a professor of English, teaching courses on business communication and public speaking as well as British literature.  He holds a Ph.D. in English from Emory University, an M.Phil in British Romantic Studies from Oxford University, and a B.A. in English from Earlham College.

Wei Zhang, Ph.D., Member, Board of Directors

Dr. Zhang comes to Effigene with a wide range of experiences in new product planning, marketing and business development. He has been with both small biotech comanies such as Altus and big biotech/pharmaceutical companies including Amgen and Bristol-Myers Squibb with increasing responsibilities in commercial operations. Dr. Zhang started his career with McKinsey & Company and holds a Ph.D. from Carnegie Mellon University.

David Sackin, Director, Member, Board of Directors

David Sackin is Senior Expert and co-leader of McKinsey and Company’s North American Marketing Practice of 18 specialists.

Based in Atlanta, Mr. Sackin specializes in new product development, pricing, and sales strategy. Although serving a variety of industries, the focus of his work has been in pharmaceuticals, high tech, and consumer goods.

Recent client work includes:

  • Created the United States Post Office’s new "Forever Stamp," a stamp that retains its value in the face of future price increases. First year revenue exceeded $200 million

  • Developed the price strategy for a laboratory testing company’s genotyping and expression product lines, identifying several core customer segments willing to pay a significant price premium

  • Designed the retail pharmacy incentive structure for a $200 million RX to OTC product launch for a Pharmaceutical company in the EU

  • Re-configured a sports apparel manufacturer’s technology investment allocation, shifting funding to areas with more consumer value and delivering $35 million in margin improvement

  • Create a retail pricing and sales strategy for a tire manufacturer’s premium lines, yielding $114 million in EBIT improvement

Mr. Sackin has been a speaker at the American Marketing Association and Marketing Science Institute. Recent speeches and publications include "The Insights Driven Company," "High Impact Pilot Tests," and "Profit from Strategic Pricing Research"

He holds an M.S. in Market Research from the University of Georgia and a B.A. with honors from New College. He lives in Atlanta with his wife Lib and daughters Hannah and Lucy.



K&L Gates, Boston: Legal Representation

Emory University

Scientific Advisory Board

Peng Jin, Ph.D., Assistant Professor of Genetics, Emory University

Allan Levey, M.D., Ph.D., Professor and Chair of Neurology, Emory University

Xiao-Jiang Li, M.D., Ph.D., Distinguished Professor of Human Genetics, Emory University

Harry Orr, Ph.D., Tulloch Professor of Genetics, University of Minnesota

Chuan He, Ph.D., Associate Professor of Chemistry, University of Chicago