Edward Lanphier, the founder of Sangamo BioSciences, Inc., has served as President, Chief Executive Officer and as a member of the Board of Directors since Sangamo's inception in 1995. Mr. Lanphier has approximately twenty-five years of experience in the pharmaceutical and biotechnology industry. From June 1992 to May 1997, he held various positions at Somatix Therapy Corporation, a gene therapy company, including Executive Vice President, Commercial Development and Chief Financial Officer. Prior to Somatix, he was President and Chief Executive Officer of BioGrowth, Inc., a biotechnology company that merged with Celtrix Laboratories to form Celtrix Pharmaceuticals, Inc. in 1991. From 1986 to 1987, he served as Vice President of Corporate Development at Biotherapeutics, Inc. From 1984 to 1986, Mr. Lanphier served as Vice President of Corporate Development at Synergen Inc. Prior to Synergen, he was employed by Eli Lilly and Company, a pharmaceutical company, in the strategic business planning biotechnology group. He currently serves on the board of directors of the Biotechnology Institute. Mr. Lanphier holds a B.A. in biochemistry from Knox College.

H. Ward Wolff has served as Executive Vice President and Chief Financial Officer since December 2007. Mr. Wolff was formerly with Nuvelo, Inc., where he served as Senior Vice President, Finance and Chief Financial Officer until its restructuring in August 2007. Prior to joining Nuvelo, he was Chief Financial Officer and Senior Vice President, Finance, of Abgenix, Inc. until April 2006 when Abgenix merged with Amgen Inc. Prior to joining Abgenix, Mr. Wolff held financial management positions in both public and private emerging growth companies, including serving as Senior Vice President and CFO of DoubleTwist, Inc., a life sciences company integrating genomic information and bioinformatics analysis tools. He began his career with Price Waterhouse, where he held a number of positions as a certified public accountant, including Senior Audit Manager. Mr. Wolff is a member of the Board of Directors of Portola Pharmaceuticals, Inc. and from June 2006 until his appointment to Sangamo's management team was a member of Sangamo's Board of Directors, serving as Chairman of the Audit Committee. Mr. Wolff received a B.A. degree in Economics from the University of California at Berkeley and an M.B.A. degree from Harvard Business School.

Dale Ando, M.D. has served as Vice President, Therapeutic Development and Chief Medical Officer since August 2004. Dr. Ando has held senior positions in therapeutic product development in several biotechnology companies most recently as Vice President, Clinical Research at Cell Genesys, Inc. While at Cell Genesys, Dr. Ando directed the development of Phase I-III GVAX programs, oncolytic virus programs and Phase I/II trials of chimaeric T-cell receptor products in HIV and cancer. Prior to joining Cell Genesys in 1997, Dr. Ando spent six years at Chiron Corporation as director of clinical gene therapy and three years at Cetus Corporation. From 1997 to 2001 Dr. Ando served as a member of the Recombinant DNA Advisory Committee (RAC) and the Adenoviral Safety Committee for the National Institutes of Health (NIH). Dr. Ando began his career as a faculty member at UCLA Medical School in the Division of Rheumatology. He received his M.D. and Internal Medicine training at the University of Michigan and a B.S. in Chemistry from Stanford University. Dr. Ando is board certified in internal medicine and is a subspecialist in Rheumatology.

Philip D. Gregory, D. Phil., has served as Chief Scientific Officer and Vice President, Research since July 2009. He joined Sangamo in December 2000 as a Scientist, became a Team Leader in October 2001, Senior Director, Research in July 2003 and Vice President, Research in October 2005. Prior to joining the company, Dr. Gregory was at the University of Munich, Germany, where he studied the role of chromatin structure in gene regulation and published extensively in this field. Dr. Gregory earned a D. Phil. In Biochemistry from the University of Oxford and holds a B.Sc. in microbiology from the University of Sheffield.

David G. Ichikawa has served as Senior Vice President, Business Development since December 2004. Prior to joining Sangamo, Mr. Ichikawa was most recently Chief Business Officer for Sagres Discovery, where he was responsible for corporate strategy and business development activities. While at Sagres he negotiated a major collaboration with Boehringer Ingelheim, the strategic acquisition of MemRx Corporation and played a critical role in the acquisition of Sagres by Chiron Corporation. Prior to Sagres Discovery, David held several positions with Chiron Corporation including Vice President, R&D Business Development and Finance. Mr. Ichikawa earned his M.B.A. degree from the University of California at Berkeley and a B.S. degree from the University of California at Davis.

Ely Benaim, M.D. has served as Vice President, Clinical Affairs since April 2007. Dr. Benaim has twenty years of experience in the medical field including ten years of clinical research experience in academia, government and the biotechnology and pharmaceutical industries. He most recently served as Global Development Leader, Global Clinical Development at Amgen, Inc. While at Amgen, Dr. Benaim oversaw the clinical development of multiple of oncology therapeutic drug candidates. Prior to joining Amgen in 2005, Dr. Benaim served as Global Senior Director, Oncology Clinical Development at Salmedix Inc. (now Cephalon, Inc.) where he led the development of TREANDA® (Bendamustine HCl) to a Phase 3 pivotal trial for lymphoma. Dr. Benaim received his M.D. from the Universidad Central de Venezuela, Caracas and completed his pediatric residency training at the University of South Florida. He completed fellowships in pediatric oncology and bone marrow transplantation at St. Jude's Children's Research Hospital, Memphis, Tennessee. From 1997 to 2004, he was Assistant Professor in the Department of Pediatrics at the University of Tennessee and an Assistant Member to the Department of Hematology/Oncology. As a member of the Transplantation and Gene Therapy program he published several manuscripts on the areas of stem cell transplantation, immunology and gene therapy.

Martin Giedlin, Ph.D. has served as Vice President, Development since February 2008. Dr. Giedlin has over fifteen years of biologic drug development experience at several biotechnology companies most recently as Senior Director, In Vivo Biology at Cerus Corporation where he was responsible for design and implementation of IND-enabling animal studies in support of immunotherapies for the treatment of cancer and infectious disease. Prior to joining Cerus in 2002, he was Director, Pharmacology and Toxicology for Onyx Pharmaceuticals, Inc. from 2000 until 2002. From 1992 to 2002 he was Associate Director, Vaccines and Gene Therapy with Chiron Corporation and prior to that, from 1986 to 1992, was a Research Scientist with Berlex BioSciences, Inc. Dr. Giedlin earned a Ph.D. in Microbiology from the Medical College of Virgina and a B.S. in Biology/Chemistry from the University of Notre Dame.

Ed Rebar, Ph.D. has served as Vice President, technology since December 2007. He joined Sangamo in August 1998 as a Scientist, became a Team Leader in October 2001and was promoted to Senior Director, Technology in November 2003. Prior to joining Sangamo, he was a post-doctoral fellow at University of California, Berkeley. Dr. Rebar earned a Ph.D. from the Massachusetts Institute of Technology, where he developed phage display methods for engineering zinc fingers with novel DNA-binding specificities. Dr. Rebar has authored numerous publications and patents relating to the design and application of zinc finger proteins. He holds a B.S. in Biochemistry from Rutgers University.

Greg Zante, CPA, has served as Vice President, Finance and Administration since September 2006. He joined Sangamo in August 2003 as Senior Director, Finance and Administration. Prior to joining Sangamo, Mr. Zante was Director, Finance and Administration of Calyx Therapeutics, Inc. a privately held pharmaceutical discovery and development company, from December 2001. From October 1993 until December 2001, Mr. Zante held senior financial managerial positions in several companies including Matrix Pharmaceuticals, Inc. He was employed by Ernst and Young, LLP as a Senior Staff Accountant from October 1993 until November 1995. Mr. Zante holds a B.A. in business-economics and managerial accounting from UCLA and is a Certified Public Accountant in the state of California.