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Sean Cook, PHR, SHRM-CP

Executive Vice President and Chief Administrative Officer at Environmental Defense Fund

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Overview

Sean Cook holds the position of Executive Vice President and Chief Administrative Officer at Environmental Defense Fund[1], a role Cook has occupied since August 2023[3]. In this capacity, Cook leads functions across people, culture, legal, ethics and compliance, and corporate services[2]. Prior to this appointment, Cook served as Senior Vice President and Chief Human Resources Officer at Environmental Defense Fund from August 2018 to August 2023[4]. Cook's career includes positions at OTG Management as Partner and Vice President of Talent Management[5], and extensive experience at Walmart in human resources and talent development roles spanning from 2007 to 2015, including Vice President of Training and Development in India and Asia Regional Director of People[7][8][9][10]. Cook holds an MBA from California Coast University[11].

Profile introduction
Source excerptLinkedIn [2]

I’m an executive leader at Environmental Defense Fund, where I serve as EVP & Chief Administrative Officer. I lead functions across people, culture, legal, ethics & compliance, and corporate services, with a focus on building strong teams, strengthening organizational effectiveness, and helping the institution scale with clarity and integrity. As a strategic advisor to EDF’s President and Executive Director, I work at the intersection of leadership, operations, culture, and risk. I’m known for bringing a steady, people-centered approach to complex challenges, helping organizations make sound…

Career history

  1. Executive Vice President and Chief Administrative OfficerAug 2023 to presentEnvironmental Defense Fund
  2. SVP, Chief Human Resources OfficerAug 2018 to Aug 2023Environmental Defense Fund
  3. Partner and Vice President of Talent ManagementAug 2015 to Jul 2018OTG Management
  4. Sr. Human Resources Business Partner - Global Finance DivisionJun 2013 to Aug 2015Walmart
  5. Vice President, Training & Development - IndiaJun 2011 to Jun 2013Walmart
  6. Asia Regional Director, People - Hong KongJan 2011 to Jun 2011Walmart
  7. Corporate Director, Talent DevelopmentFeb 2010 to Jan 2011Walmart
  8. Divisional Director, Talent DevelopmentOct 2007 to Feb 2010Walmart

Education

  1. MBA, Master Business Adminstration2002 - 2004California Coast University

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