Two Sigma, Goldman, and Citi invested $41 million in data startup Crux Informatics. But the past 12 months has seen the startup churn through execs as it looks to solve Wall Street's data woes.

· Crux Informatics raised $41 million from the biggest names on Wall Street, but struggled to develop the product it promised Two Sigma, Goldman, and Citi, several sources familiar with the situation tell Business Insider.
· Several executives, including co-founder Elizabeth Pritchard, have left the start-up in recent months,...