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Executive Team

Carl Russo
President and Chief Executive Officer

Roger Weingarth
Executive Vice President and Chief Operating Officer

Andy Lockhart
Senior Vice President, International Sales and Marketing

John Colvin
Senior Vice President, North American Sales and Marketing

Mark Dressler
Vice President, Major Account Sales

Nathan Harrell
Vice President, National Account Sales

Ken Grelck
Vice President Regional Sales, East and Canada

Skip Hirvela
Vice President Regional Sales, West

David Seda
Vice President, Field Marketing

Omar Ramadan
Vice President, Global Customer Services

Michael Ashby
Executive Vice President and Chief Financial Officer

Kevin Pope
Senior Vice President, Product Development

Todd Ortberg
Senior Vice President, Business and Market Development

Tony Banta
Senior Vice President, Global Manufacturing and Supply

Mehdi Bradaran
Vice President, Product and China Operations

Robert Balsamo
Vice President, Product Strategy

Miguel Alonso
Vice President, Software Products

Jill Von Berg
Vice President, Information Technology

Tish Rutledge
Vice President, Talent and Culture

Denis Quinlan
General Counsel

Directors

Don Listwin
Chairman

Michael Ashby
Executive Vice President and Chief Financial Officer

Michael Everett
Director

Michael Flynn
Director

Adam Grosser
Director

Michael Matthews
Chief Corporate Development Officer for AGT International GMBH

Thomas Pardun
Director

Carl Russo
President and Chief Executive Officer

Don Listwin

Don Listwin, Chairman

Don Listwin is founder and chairman of Canary Foundation, a non-profit organization devoted exclusively to early detection of cancer. A 30-year veteran of the networking industry, Don was CEO of Openwave from 2000 to 2004 and held senior executive positions at Cisco Systems between 1990 and 2000. Don serves on the board of directors of Clustrix Inc., Genologics Life Sciences Software Inc., Teradici Corporation, and Joyent, Inc., each a privately-held company. Don is a member of the board of scientific advisors of the National Cancer Institute, a research and development center. Don holds an honorary Doctorate of Law degree from the University of Saskatchewan and a Bachelor of Science degree in Electrical Engineering from the University of Saskatchewan.
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