Concentric Medical

Maria Sainz

Ms. Sainz has served as our President, CEO, and as a member of our board of directors since April 2008. From February 2003 through July 2006, Ms. Sainz served as President of the Cardiac Surgery division of Guidant Corporation. From January 2001 through February 2003, Ms. Sainz served as Vice President, Global Marketing for the Vascular Intervention division of Guidant Corporation. From late 1998 through early 2001, Ms. Sainz served as Vice President of the Intermedics Cardiac Rhythm Management business of Guidant Corporation in Europe after the acquisition of Intermedics by Guidant. Prior to that Ms. Sainz held several sales and marketing assignments of increasing responsibility in Guidant’s European operations. Ms. Sainz received an M.A. in Languages from the University Complutense in Madrid, Spain and a Masters in International Management from the American Graduate School of International Management.

Andrew Chmyz

Mr. Chmyz has served as our Chief Financial Officer since April 2005. He has also served as our Vice President of Corporate Development since April 2007, and previously as our Vice President of International from November 2005 until April 2007. Mr. Chmyz held various positions at Marimba, an information technology company, including Vice President and Chief Financial Officer from February 2003 until July 2004 when Marimba was acquired by BMC Software. He served at Marimba as Acting Vice President of Finance and Chief Financial Officer from July 2002 until February 2003, and as Director of Finance and Investor Relations from April 2002 until July 2002. From September 1999 until March 2002, Mr. Chmyz served as Corporate Controller of Homestead Technologies, a website software and hosting company. Mr. Chmyz received a B.A. in Political Science from Yale University and an M.B.A. from Santa Clara University.

Kimberly Bridges

Ms. Bridges has served as our Vice President of Sales since February 2008. From July 2006 to February 2008, she held the position of Director of Sales for Cardiology & Endovascular within the Cordis division of Johnson & Johnson. Prior to Johnson & Johnson, Ms. Bridges spent two years as a Director of Sales at Guidant, and held sales management positions at a variety of medical device firms including EV3 and Microvena. Ms. Bridges received a B.S. in Management from Pepperdine University and is currently pursuing an Executive M.B.A. at the USC Marshall School of Business.

Andrew R. Gordon

Mr. Gordon has served as our Senior Vice President of Sales and Marketing since October 2007, and as our Vice President of Marketing since January 2007. From November 2006 until December 2006, Mr. Gordon served as Director of Global Strategic Marketing for the Endovascular Technologies division of Abbott Vascular, a developer of endovascular products. From December 1997 until November 2006, Mr. Gordon served as Director of Global Marketing for the Endovascular Solutions division of Guidant, a developer of endovascular products. Mr. Gordon received a B.S. in English from Dickinson College and an M.B.A. from Arizona State University, Tempe.

Salvatore C. Lazzara

Mr. Lazzara has served as our Vice President of Quality Assurance since March 2000. Previously, Mr. Lazzara served as our Vice President of Operations from May 2002 until December 2005. From February 1998 until March 2002, Mr. Lazzara served as Director of Quality Assurance for Corvascular, a developer of pharmaceutical products for cardiac surgery. From October 1997 until February 1998, Mr. Lazzara served as Director of Regulatory Affairs and Quality Assurance for Decibel Instruments, a developer of hearing aids and audiometers. Mr. Lazzara received a B.S. in Engineering from Brown University and an M.S. in Electrical Engineering and Applied Physics from Case Western Reserve University.

John H. Miller

Mr. Miller has served as our Vice President of Research and Development since November 2005. Previously, Mr. Miller served as our Program Manager for the Ischemic Stroke Group from March 2000 until March 2002 and as our Director of Research and Development from March 2002 until November 2005. From April 1998 until March 2000, Mr. Miller served as a Senior Project Engineer for Corvascular, a developer of a combinational drug and device approach to cardiac surgery. Mr. Miller received a B.S. in Mechanical Engineering from the University of Utah, Salt Lake City.

Robert A. Nicholas

Mr. Nicholas has served as our Vice President of Operations since April 2007. From November 2006 until March 2007, Mr. Nicholas served as our Senior Director of Operations and as our Director of Operations from August 2002 until November 2006. From October 2001 until July 2002, Mr. Nicholas served as the General Manager of West Coast Operations for Medsource Technologies, a contract Medical Device OEM manufacturer, which was acquired by Accellent (formerly UTI) in June 2004. Mr. Nicholas received an A.S. degree in Design and Drafting Technologies from the College of San Mateo.

Tim A. Ridout

Mr. Ridout has served our Vice President of Finance since August 2006. Mr. Ridout held two positions at Cenzic, a security software company, including Corporate Controller from January 2002 until June 2005 and Vice President of Finance & Administration from June 2005 until August 2006. Mr. Ridout held several positions at Geocast Network Systems, a data-broadcasting company, including Corporate Controller from May 1999 until November 2000 and Vice President of Finance from November 2000 until December 2001. Mr. Ridout is a certified public accountant. Mr. Ridout received a B.S. in Business Administration from California Polytechnic State University, San Luis Obispo.

Kirsten L. Valley

Ms. Valley has served as our Senior Vice President of Operations and Regulatory Affairs since November 2005. From June 2002 until November 2005, Ms. Valley served as our Vice President of Research and Development. From September 1998 until May 2002, Ms. Valley served as Vice President of Research, Development, Regulatory and Quality for RadioTherapeutics, a developer of radio frequency devices for soft tissue ablation, which was acquired by Boston Scientific in December 2001. Ms. Valley received a B.S. in Mechanical Engineering from the University of California, Davis.