Cerus Websites

Board of Directors

Nominating & Corporate
Governance Committee		 Compensation
Committee		 Audit
Committee
William ‘Obi’ Greenman
Executive Chair of Board		 (bio) — — —
Eric H. Bjerkholt (bio) — — Chair
Dean A. Gregory (bio) — — Member
Ann Lucena
Former Chief Executive Officer, San Ramon Regional Medical Center		 (bio) — Chair Member
Jami Nachtsheim (bio) Chair Member —
Hua Shan, MD, PhD
Professor and Medical Director, Transfusion Medicine Service, Stanford University Medical Center		 (bio) Member — —
Frank Witney
Lead Independent Director, Former President & Chief Executive Officer, Affymetrix, inc		 (bio) Member Member —


William ‘Obi’ Greenman has served as Executive Chair of the Board since July 1, 2026 and a member of our Board since April 2011, becoming Chair of the Board in June 2025. In addition to his service on the Board, Mr. Greenman, served in various operating roles at Cerus, including most recently as President and Chief Executive Officer. Prior to his time at Cerus, Mr. Greenman worked in venture capital, as well as various marketing and business development positions in Baxter’s Biotech Division. Mr. Greenman previously served as a member of the Board of Directors of both Aduro Biotech and Chinook Therapeutics, as Audit and Compensation Committee Chairs, respectively, for a combined period of more than a decade. He received his B.A.S. in Economics and Biological Sciences from Stanford University.

Eric Bjerkholt has served as a member of our Board since October 2018. Since November 2020, Mr. Bjerkholt has been the Chief Financial Officer of Chinook Therapeutics, Inc. a clinical-stage biopharmaceutical company focused on kidney diseases. Prior to that, from April 2017 to November 2020, Mr. Bjerkholt was the Chief Financial Officer of Aimmune Therapeutics, Inc., a biotechnology company developing treatments for food allergies. From 2004 until April 2017, Mr. Bjerkholt held various roles at Sunesis, including as Executive Vice President, Corporate Development and Finance and Chief Financial Officer. From 2002 to 2004, he was Senior Vice President and Chief Financial Officer at IntraBiotics Pharmaceuticals, Inc., a biopharmaceutical company that was acquired by Ardea Biosciences, Inc. in 2006. Mr. Bjerkholt was a co-founder of LifeSpring Nutrition, Inc., a nutraceutical company, and from 1999 to 2002 served at various times as its Chief Executive Officer, President, and Chief Financial Officer. From 1990 to 1997, he also served as a vice president in the healthcare banking group at J.P. Morgan & Co. Incorporated, an international banking firm. Mr. Bjerkholt currently serves on the board of directors of CalciMedica, Inc. (formerly Graybug Vision, Inc.) since September 2020 and Surrozen, Inc. since April 2023, as well as one private company board of directors. He has served on the boards of directors of several publicly traded companies, including as a member of the board of directors and chair of the audit committee of Corium International, Inc., a commercial-stage biopharmaceutical company, until its acquisition by Gurnet Point Capital in November 2018, and as a member of the board of directors and as chair of the audit committee of StemCells, a biotech company, until its November 2016 acquisition by Microbot Medical Ltd. He holds a Cand. Oecon degree in Economics from the University of Oslo and an M.B.A. from Harvard Business School.

Dean A. Gregory has served as a member of our Board since July 2024. Mr. Gregory was President of Global Commercial Operations for Fresenius Kabi, Inc., a global medical device company, from December 2012 until March 2024. Prior to that, Mr. Gregory was the Senior Vice President of Commercial Operations at Fenwal Inc. from March 2007 through November 2012 and held various management positions at Baxter International from June 1991 until February 2007, including Vice President, Global Marketing Pathogen Inactivation from August 1999 to December 2002 and Vice President, Business Development, Strategy and Global Marketing ROW from December 2002 to February 2007. Mr. Gregory holds a B.S. in Biology from the University of Illinois and an M.B.A. from Depaul University.

Vivek K. Jayaraman was appointed as Cerus’ chief executive officer on July 1, 2026. He previously served as chief operating officer (2020-2026), with oversight of commercial operations and supply chain, and as chief commercial officer (2016-2020). Prior to Cerus, Mr. Jayaraman led TriVascular’s commercial expansion as the company grew from a preclinical, venture-backed startup into a publicly traded, global medical device company. Prior to TriVascular, Mr. Jayaraman served in numerous executive roles at Medtronic in both the U.S. and Asia. Mr. Jayaraman received his M.B.A. from the Wharton School at the University of Pennsylvania and holds dual bachelor’s degrees from the University of Michigan.

Ann Lucena has served as a member of our Board since August 2021. She most recently served as the Chief Executive Officer of San Ramon Regional Medical Center, an award-winning acute care hospital located in the Bay Area from April 2018 to November 2022. Ms. Lucena also served as the chairperson of the board overseeing the joint venture between John Muir Health and Tenet Healthcare. Ms. Lucena served as Chief of Staff for the President of Hospital Operations of Tenet Healthcare in Dallas, Texas from 2015 until 2018. From 2012 to 2015, Ms. Lucena served as an administrator over numerous operational departments in the San Ramon Regional Medical Center. Prior to 2012, Ms. Lucena worked in healthcare consulting, where she served a number of health systems across the U.S. She holds a B.A. in human biology and a B.A. in Spanish from Stanford University and an MBA from Harvard Business School. She currently serves on the Harvard Business School Alumni Board as well as on the boards of several hospital industry associations and not-for-profit organizations.

Jami Dover Nachtsheim has served as a member of our Board since March 2019. Ms. Nachtsheim served in a variety of positions with Intel Corporation from 1980 until her retirement in 2000, most recently as the Corporate Vice President of the Sales and Marketing Group and as Director of Worldwide Marketing. Ms. Nachtsheim served on the board of directors of FEI Company from March 2010 until its acquisition by Thermo Fisher Scientific Inc. in September 2016. Ms. Nachtsheim also served on the board of directors of Affymetrix from May 2009, and as Chairman starting in January 2015, until its acquisition by Thermo Fisher Scientific Inc. in March 2016. Ms. Nachtsheim currently serves on the board of directors of Telesis Bion Inc. (formerly Codex DNA, Inc.) since June 2021 and Intuitive Surgical, Inc. since April 2017. Ms. Nachtsheim holds a B.S. in Business Management from Arizona State University.

Hua Shan, MD, PhD has served as a member of our Board since July 2022. Since April 2015, Dr. Shan has served as a Professor and Medical Director of Transfusion Medicine Services at Stanford University Medical Center. Previously, beginning in 1998, Dr. Shan practiced transfusion medicine at Johns Hopkins Medical Institutions. Dr. Shan is a leading expert on international transfusion practice and blood transfusion safety. She has led several large education and research programs on blood availability, blood safety and effective clinical transfusion practice. Dr. Shan directed Johns Hopkins University’s U.S. National Institutes of Health Fogarty International Blood Safety Program from 2000 to 2008. From 2006 to 2011, she was the Principal Investigator for the National Heart, Lung and Blood Institute (NHLBI) sponsored Retroviral Epidemiology Donor Study (REDS–II) International China Program. Since 2011, Dr. Shan served as the Principal Investigator for NHLBI’s Recipient Epidemiology and Donor Evaluation Study-III (REDS-III) International-China Program. Dr. Shan is a member of editorial boards of several leading international journals including Transfusion and Transfusion Medicine Review. Dr. Shan is a member of the ISBT’s Transfusion-Transmitted Infectious Diseases Working Party and AABB’s Clinical Transfusion Medicine Committee. Dr. Shan has contributed to over one hundred publications in the field of blood transfusion practice. Dr. Shan received residency and fellowship training at the Hospital of University of Pennsylvania. She is a graduate of Peking University School of Medicine and holds a Ph.D. in immunology from University of Pennsylvania.

Frank Witney, Ph.D. has served as a member of our Board since March 2014 and as Lead Independent Director since June 2025. Dr. Witney currently serves on the board of directors of PerkinElmer, a public medical diagnostics company, Telesis Bio Inc. (formerly Codex DNA, Inc.), a public synthetic biology company, and Standard BioTools, a public life science tools company, as well as three private company boards of directors. He is also an Operating Partner at Ampersand Capital Partners, a private equity firm focused on healthcare investing. Dr. Witney served as President, Chief Executive Officer and a director of Affymetrix, Inc., or Affymetrix, a provider of life science products and molecular diagnostic products, from July 2011 through March 31, 2016, the date it was acquired by Thermo Fisher Scientific, Inc. Dr. Witney served as President and Chief Executive Officer of Dionex Corporation, a provider of analytical instrumentation and related accessories and chemicals, from April 2009 until its acquisition by Thermo Fisher Scientific, Inc. in May 2011. Between December 2008 and April 2009, Dr. Witney served as Affymetrix’s Executive Vice President and Chief Commercial Officer. Prior to that, Dr. Witney served as President and Chief Executive Officer of Panomics, Inc. from July 2002 to December 2008. Dr. Witney was a post-doctoral fellow at the National Institutes of Health and holds a Ph.D. in Molecular and Cellular Biology and an M.S. in Microbiology from Indiana University, and B.S. in Microbiology from the University of Illinois.