Why Genentech’s chief medical officer says now is a good time to leave For more information please click here to contact Tuan Nguyen By Bizjournals.com Feed (2019-07-12 16:19:27) | August 21, 2019 In an interview with the San Francisco Business Times, Dr. Sandra Horning says it’s a good time for a transition with her sprawling job. Posted in Sacramento Business Journal