Founded in 2012, EcoR1 Capital evaluates and selects biotech companies based on their high-quality science and strong business fundamentals. The fund primarily invests in rounds with 8-9 participants and has notable sponsors such as Fidelity Management and Research Company. It has invested in successful startups like Clementia Pharmaceuticals and Relay Therapeutics. With a focus on the genetics and medical device industries, EcoR1 Capital targets companies that are around 4-5 years old. The fund has a higher than average lead investment amount and is involved in 2-6 deals per year. Despite a lower rate of exits compared to other organizations, the fund had increased activity in 2018 and continues to be active in 2019.