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Board of Directors

Sujeet Singh
Co-founder & CEO
Shubhayu Sinharoy
Co-founder & COO
Puiho Yuen
Co-founder & CSO
Amit Patel

Sujeet Singh is Co-founder and Chief Executive Officer of Calyptus Pharmaceuticals. Before co-founding Calyptus, Sujeet was Vice President & Head, Strategic Portfolio & Business Development for Dr. Reddy’s Laboratories (DRL) North America Generics. He was responsible for business strategy, planning, portfolio management, in-licensing, acquisition, integration, and managing external collaborations. During his stint at Dr. Reddy's Sujeet also led the establishment and subsequent launch of the highly successful Specialty Generics (Injectable) business and was involved in setting-up and growing DRL’s Custom Pharma Services business. Sujeet has an MBA from Indian Institute of Management Bangalore, and a B. Tech. from the Indian Institute of Technology, Bombay.

Shubhayu Sinharoy is Co-founder and Chief Operating Officer of Calyptus Pharmaceuticals. Before co-founding Calyptus, Shubhayu was Head of M&A and Business Development for Dr. Reddy’s Laboratories (DRL) North America Generics, where he led external R&D alliances for complex generic assets, in-licensing transactions, acquisitions and strategic growth initiatives. He headed the largest U.S. acquisition for DRL (Product portfolio acquisition from Teva for $350 million), along with acquisition of leading OTC brands from Ducere Pharmaceuticals, and an acquisition of a highly specialized pharma technology company. Prior to DRL, he held roles of increasing responsibility at Eaton, L.E.K. Consulting and Tyco Connectivity. He holds 4 patents. Shubhayu has an MBA from The Wharton School at University of Pennsylvania, an M.S. from Michigan Technological University and a B. Tech from the Indian Institute of Technology, Madras.

Puiho Yuen is Co-founder and Chief Scientific Officer of Calyptus Pharmaceuticals. Before co-founding Calyptus, Pui headed the development of injectable, ophthalmic, topical, softgel and transdermal products for Dr. Reddy’s Laboratories (DRL) North America Generics. He possesses a vast depth of knowledge in generic drug development as well as approval processes and requirements. Prior to DRL, Pui held various pharmaceutical R&D and management roles at Schering-Plough, Baxter and Eagle Pharmaceuticals. Pui led the discovery of mometasone furoate monohydrate and formulation/process development efforts for the commercial success of Nasonex® nasal spray. He holds 11 patents. Pui has a Ph.D. in Pharmaceutics from Ohio State University.

Amit M. Patel has twenty years of healthcare industry experience with publicly-traded, private equity-backed, and start-up companies in the capacity of executive, investor, and advisor.  Amit was Senior Vice President & President at Capsugel, a KKR portfolio company (purchased from Pfizer in 2011 and sold to Lonza in 2017) that provided products and services to pharmaceutical and nutritional companies.  Prior to Capsugel, Amit worked at Dr. Reddy’s Laboratories, Inc., a publicly-traded, global specialty-generic pharmaceutical company, where he held positions of Executive Vice President & Head, North America, and Senior Vice President & Head, Global Corporate Development & Strategic Planning. Earlier, Amit was Vice President, Corporate Development, at CTIS, Inc., and Co-founder & CEO of MedOnTime, Inc. (acquired by CTIS), both of which were healthcare information technology companies. He started his career as a consultant with Marakon Associates, a strategy consulting firm. Amit holds an MBA degree from Harvard Business School, a B.S. degree in Economics from The Wharton School at University of Pennsylvania, and a B.A.S. degree in Systems Engineering from The Moore School of Engineering at University of Pennsylvania.

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