21 employees have rated ChemoCentryx Chief Executive Officer Thomas J. Schall on Glassdoor.com. Thomas J. Schall has an approval rating of 58% among the company's employees. This puts Thomas J. Schall in the bottom 25% of approval ratings compared to other CEOs of publicly-traded companies. 44.0% of employees surveyed would recommend working at ChemoCentryx to a friend.