Theranos founder Elizabeth Holmes had a right-hand man who stayed mainly out of the headlines. Shayanne Gal/Business Insider
Throughout the saga of Theranos, the embattled blood testing company that came under fire in 2015 over the accuracy of its blood tests, one key figure remained out of the spotlight.
While Theranos founder and CEO Elizabeth Holmes countered claims at conferences and in TV interviews, the company’s president and chief operating officer — and Holmes’ romantic partner for a time — Sunny Balwani stayed a mystery.
