Jeffrey Stein

Jeffrey Stein

Director/Board Member at IDEAYA BIOSCIENCES, INC.

Net worth: 2 M $ as of 31/07/2026

71 year
Health Technology
Consumer Services
Commercial Services

Profile

Jeffrey L.
Stein
was the founder of Quorex Pharmaceuticals, Inc., founded in 1999, where the title held was Director, Chief Scientific Officer & Executive VP in 2005.
Dr. Stein was the founder of Antibiotics Working Group, founded in 2012, where the title held was Chairman & President from 2012 to 2013.
Dr. Stein currently serves as Independent Director at IDEAYA Biosciences, Inc. since 2015.
Former positions include President, Chief Executive Officer & Director at Cidara Therapeutics, Inc. from 2021 to 2026; President, Chief Executive Officer & Director at Trius Therapeutics, Inc. from 2007 to 2013; Chairman at Antimicrobials Working Group from 2017 to 2019; Director-Venture Development at the University of California San Diego in 2006; Independent Director at Prevacept Infection Control, Inc.; Lead Independent Director at Paratek Pharmaceuticals, Inc. from 2022 to 2023; Principal Scientist at Diversa Corp.
from 1999 to 2000; Venture Partner at Sofinnova Investments, Inc. from 2005 to 2010; Principal Scientist at The Agouron Institute in 1995.
Education includes undergraduate degree from The California State University in 1979, graduate degree from The California State University in 1983, doctorate from the University of California San Diego in 1991, and doctorate from California Institute of Technology in 1993.

Known holdings in public companies

CompanyDateNumber of sharesValuationValuation date
16/06/2026 54,281 ( 0.06% ) 2 M $ 31/07/2026

Jeffrey Stein active positions

CompaniesPositionStart
IDEAYA BIOSCIENCES, INC. Director/Board Member 01/10/2015

Former positions of Jeffrey Stein

CompaniesPositionEnd
CIDARA THERAPEUTICS Chief Executive Officer 07/01/2026
PARATEK PHARMACEUTICALS, INC. Director/Board Member 21/09/2023
Chairman 17/01/2019
Chief Executive Officer 01/09/2013
Antibiotics Working Group
Founder 01/09/2013
See the detail of Jeffrey Stein's experience

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Private companies14

Commercial Services

Finance

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Consumer Services

Consumer Services

Health Technology

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Health Technology

Antibiotics Working Group

Health Technology

Commercial Services