Investor Testifies as Case Against Elizabeth Holmes Winds Down

SAN JOSE, Calif.—A Texas money manager who invested more than $1 million in Theranos Inc. when it was still an early-stage healthcare startup took the stand Wednesday in the criminal-fraud trial of founder Elizabeth Holmes to detail the promises she made that helped convince him to back the company.

The testimony of Alan Eisenman underpins one of the wire fraud charges Ms. Holmes faces in a 12-count indictment, and builds on similar stories jurors have heard from other investors at trial.