Jeff Stein

Jeff Stein is the president and CEO of San Diego's Trius Therapeutics. He joined the board of Rx3 Pharmaceuticals, the predecessor of Trius, in 2005 while serving as a Kauffman Fellow with Sofinnova Ventures. He became CEO in 2007 when the company was revamped and reincorporated as Trius. He also served as a Sofinnova venture partner from 2007 until 2010, and as director of venture development at UC San Diego from 2005 to 2006. He was previously executive vice president, chief scientific officer, and a board member of Quorex Pharmaceuticals, an anti-infectives company he founded in Carlsbad, CA, in 1999 that was acquired by Pfizer in 2005. Before that, Stein worked as the principal scientist at Diversa and at the private Agouron Institute. He was a distinguished postdoctoral fellow at the California Institute of Technology, and holds a doctorate in biochemistry and microbiology from UC San Diego.