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John Casey

Principal

John Casey joined Flagship Pioneering in 2015 after completing the summer Fellows Program. At Flagship, he works as part of a venture creation team, exploring innovative ideas and opportunities, and developing critical scientific and business components that will lead to the firm’s next breakthrough startups. John played a pivotal role in building the scientific strategy of Epiva, leading to its merger with Evelo Biosciences. He was part of the founding team of Inari Agriculture, where he led their IP strategy and played a central role in R&D strategy. John was also a member of the founding team of Kintai Therapeutics.

Before joining Flagship, John earned his doctorate in biological engineering at MIT, where he designed and developed thermostable de novo enzymes on viral capsid proteins. His work led to a collaboration with the pharmaceutical industry to develop cleaner, more versatile manufacturing processes. John was an active contributor to Boston’s entrepreneurial community while a graduate student, serving as Chair of the Board of Directors for the $100K Entrepreneurship Competition and as biotechnology editor for the MIT Entrepreneurial Review. John received his B.S. in biological engineering from Louisiana State University, where his thesis research explored site-specific oligonucleotide modifications.