Mr. Limber joined the XOMA Board of Directors in December 2012. He is Chief Executive Officer and President of Gradalis, Inc. Previously he served as is President and Chief Executive Officer of Prometheus Laboratories Inc., a specialty pharmaceutical and diagnostic company. From January 2003 to July 2003, Mr. Limber was a consultant and interim Chief Executive Officer for Deltagen, Inc., a provider of drug discovery tools and services to the biopharmaceutical industry. From April 1998 to December 2002, Mr. Limber was the President and Chief Executive Officer of ACLARA BioSciences, Inc. (now Monogram Biosciences, Inc.), a developer of assay technologies and lab-on-a-chip systems for life science research From 1996 to 1998, he was the President and Chief Operating Officer of Praecis Pharmaceuticals (acquired by GlaxoSmithKline plc), a biotechnology company focused on the discovery and development of pharmaceutical products. Prior to Praecis, Mr. Limber served as Executive Vice President of SEQUUS Pharmaceuticals, Inc. (acquired by Alza Corporation and now a part of the Johnson & Johnson family of companies). He also held management positions in marketing and sales with Syntex Corporation (now F. Hoffmann-La Roche Ltd.) and with Ciba-Geigy Corporation (now Novartis AG). Mr. Limber currently serves on the Board of Directors of CombiMatrix Corporation. Mr. Limber holds a B.A. from Duquesne University.
Mr. Varian was appointed CEO of XOMA in January 2012 after serving as Interim CEO for five months. He has served as a XOMA director since December 2008. He was Chief Operating Officer of Aryx Therapeutics from December 2003 through August 2011 and was its Chief Financial Officer from April 2006 through March 2011. Previously, Mr. Varian was Chief Financial Officer of Genset S.A., where he was a key member of the team negotiating the company's sale to Serono S.A. in 2002. From October 1998 to April 2000, Mr. Varian served as Senior Vice President, Finance and Administration of Elan Pharmaceuticals, Inc., joining the company as part of its acquisition of Neurex Corporation. Prior to the acquisition, he served as Neurex Corporation's Chief Financial Officer from June 1997 until October 1998. From 1991 until 1997, Mr. Varian served as the VP Finance and CFO of Anergen Inc. Mr. Varian was an Audit Principal / Senior Manager at Ernst & Young from 1987 until 1991 where he focused on life sciences. He is a founding member of the Bay Area Bioscience Center and a former chairman of the Association of Bioscience Financial Officers International Conference. Mr. Varian received a B.B.A. degree from Western Michigan University.
Mr. Walbert is chairman, president and chief executive officer of Horizon Pharma plc, a publicly traded biopharmaceutical company focused on orphan, primary care and specialty medicines. Prior to joining Horizon Pharma plc, Mr. Walbert served as president, chief executive officer and director of IDM Pharma, Inc., a public biopharmaceutical company which was acquired by Takeda America Holdings, Inc., or Takeda, in June 2009. Prior to IDM, Mr. Walbert served as executive vice president, commercial operations at NeoPharm, Inc., a public biopharmaceutical company. From 2001 to 2005, Mr. Walbert served as divisional vice president and general manager, immunology, where he led the global development and launch of the multi-indication biologic HUMIRA and divisional vice president, global cardiovascular strategy at Abbott, now AbbVie. From 1998 to 2001, Mr. Walbert served as director, CELEBREX North America and arthritis team leader, Asia Pacific, Latin America and Canada at G.D. Searle & Company. From 1991 to 1998, Mr. Walbert also held sales and marketing roles with increasing responsibility at G.D. Searle, Merck & Co., Inc. and Wyeth. Mr. Walbert received his B.A. in business from Muhlenberg College, in Allentown, Pennsylvania. Mr. Walbert serves as chairman of the board of Egalet Corporation (NASDAQ: EGLT) and the Illinois Biotechnology Industry Organization (iBIO). He also sits on the board of directors of Sucampo Pharmaceuticals, Inc. (NASDAQ: SCMP), the Pharmaceutical Research and Manufacturers of America (PhRMA), the Biotechnology Innovation Organization (BIO), World Business Chicago (WBC) and the Greater Chicago Arthritis Foundation. Mr. Walbert is also a member of the Illinois Innovation Council.