DIRECTORS CONTINUING IN OFFICE UNTIL
THE 2025 ANNUAL MEETING
Diana M. Brainard, M.D.
Diana M. Brainard, M.D., age 52, was appointed to our board of directors in November 2021. Dr. Brainard currently serves as the Chief Executive Officer and a member of the board of directors of AlloVir, Inc., a late clinical-stage cell therapy company. Prior
to joining AlloVir, Inc., Dr. Brainard served as Senior Vice President and Virology Therapeutic Area Head at Gilead Sciences, Inc. from 2018 to April 2021. From 2015 to 2018, Dr. Brainard served as Vice President of Clinical Research, Liver
Diseases at Gilead Sciences, Inc. Dr. Brainard obtained her B.A. degree from Brown University and her M.D. from Tulane University School of Medicine.
R. Scott Greer
R. Scott Greer, age
64, has served as our director since February 2010. Mr. Greer currently serves as Managing Director of Numenor Ventures, LLC, a venture capital firm. In 1996, Mr. Greer co-founded Abgenix, Inc., a
company that specialized in the discovery, development and manufacture of human therapeutic antibodies, and from June 1996 through May 2002, he served as its Chief Executive Officer. He also served as a director of Abgenix from 1996 and
Chairman of the board of directors from 2000 until the acquisition of Abgenix by Amgen, Inc. in April 2006. Prior to Abgenix’s formation, Mr. Greer held senior management positions at Cell Genesys, Inc., a biotechnology company, initially as
Chief Financial Officer and Vice President of Corporate Development and later as Senior Vice President of Corporate Development, and various positions at Genetics Institute, Inc., a biotechnology research and development company. He served on
the board of directors of Inogen, Inc., a medical device company that develops and markets oxygen therapy products from 2015-2021, Sientra, Inc., a medical aesthetics company from 2014-2018,Versartis, Inc., an endocrine focused
biopharmaceutical company from 2014-2018, Auspex Pharmaceuticals, a biopharmaceutical company developing drugs for patients with movement disorders and other rare diseases from 2014-2015, StemCells, Inc., a biopharmaceutical company focused on
stem cell therapeutics from 2010-2016, Ablexis, an antibody technology company, as its Chairman of the board of directors from 2010-2016, Sirna Therapeutics, Inc., a biotechnology company, from 2003, and as its Chairman of the board of
directors from 2005, through the closing of the acquisition of Sirna by Merck & Co., Inc. in December 2006. Mr. Greer also previously served as a member of the board of directors of Illumina, Inc., a provider of integrated systems for the
analysis of genetic variation and biological function from 2001-2005 and of the board of directors of CV Therapeutics, Inc., a biotechnology company from 2001-2004. Mr. Greer received a B.A. in Economics from Whitman College and an M.B.A.
degree from Harvard University. He also was a certified public accountant.
DIRECTORS CONTINUING IN OFFICE UNTIL
THE 2026 ANNUAL MEETING
age 73, was appointed to serve as a member of our board of directors in September 2018. Ms. Eastham currently serves on the boards of directors of several life sciences companies. Ms. Eastham has served on the board of directors of Geron
Corporation since March 2009, Veracyte, Inc. since December 2012, and Personalis, Inc. since November 2019. Ms. Eastham served as a member of the board of directors of Illumina Inc. from August 2004 to May 2019, MorphoSys AG from May 2012 to
May 2017, Amylin Pharmaceuticals, Inc. from September 2005 until its acquisition in August 2012, Genoptix, Inc. from July 2008 until its acquisition in March 2011, Tercica, Inc. from December 2003 until its acquisition in October 2008, and
Trius Therapeutics, Inc. from February 2007 until its acquisition in September 2013. From May 2004 to September 2008, Ms. Eastham served as Executive Vice President and Chief Operating Officer, and as a member of the Board of Trustees, of the
Burnham Institute for Medical Research (now Sanford Burnham Prebys Medical Discovery Institute), a non-profit corporation engaged in biomedical research. From April 1999 to May 2004, Ms. Eastham served as Senior Vice President, Chief Financial
Officer and Secretary of Diversa Corporation, a biotechnology company. Ms. Eastham previously held similar positions with CombiChem, Inc., a computational chemistry company, and Cytel Corporation, a biopharmaceutical company. Ms. Eastham also
held several positions, including Vice President, Finance, at Boehringer Mannheim Diagnostics, from 1976 to 1988. Ms. Eastham received a B.S. in Accounting and an M.B.A. from Indiana University and is a Certified Public Accountant.
Ms. Eastham will not be seeking reelection at the Annual Meeting upon
the expiration of her term at the Annual Meeting.