A U.S. jury has found Theranos founder Elizabeth Holmes guilty of conspiring to defraud investors in the blood testing startup, convicting her on four of 11 counts.

Holmes, 37, was accused of defrauding investors and patients with her claims of revolutionizing lab testing with a machine that used a single drop of blood. She pleaded not guilty. Here is a timeline of key events leading up to the verdict.

2003: Holmes founds Theranos, then called Real-Time Cures, after dropping out of Stanford University. Then only 19 years old, Holmes aimed to revolutionize diagnostic testing.