A Team of Visionaries
We are scientists, engineers, cloud experts, and compliance specialists dedicated to accelerating genomic research to advance scientific discovery and deliver better patient care.
Executive Team
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Thomas Laur
Chief Executive OfficerThomas Laur
Thomas brings over 25 years of international experience focused on driving growth and innovation for software, data and services companies in the healthcare and life sciences space. Prior to DNAnexus, Thomas was EVP and President at Change Healthcare (NASDAQ: CHNG). Before that, Thomas was President of the global health sciences division at SAP. Previously, Thomas was CEO of Sutherland Healthcare Solutions, and he also worked at Cognizant, as Managing Director responsible for a portfolio of healthcare ventures. Thomas started his career at Deloitte Consulting, where he focused on strategy, transformation, and merger & acquisition programs for technology companies. He received his Master in Business Management degree from the ICHEC Brussels Management School in Brussels, Belgium. -
John Ellithorpe, PhD
PresidentJohn Ellithorpe, PhD
John has spent his career driving innovative technology to improve people's lives. At DNAnexus, John leads the Product, Engineering, Science, Services, and Support teams. Prior, John was CPO at Vantiq, delivering intelligent systems in the IoT space, and co-founder, CTO, and CPO at Model N (NYSE: MODN) where he led the Global Products group and drove technical strategy. John holds a Bachelor of Science in Physics from the University of California at Irvine and a PhD in Physics from the Massachusetts Institute of Technology. -
George Asimenos, PhD
Chief Technology OfficerGeorge Asimenos, PhD
Part of DNAnexus since its inception, George has been involved in the design and implementation of the DNAnexus product line and its application in key accounts around the world. He currently heads strategic projects, exploring ways in which DNAnexus technology can be used to craft novel experiences that transcend traditional genomics boundaries. George holds a PhD in computer science from Stanford University, where he helped analyze 1% of the human genome as part of the ENCODE Pilot Project. His prior research experience includes comparative metagenomics, silicon compilers for reconfigurable hardware, and elliptic curve cryptanalysis. -
James McNicholas
Chief Financial OfficerJames McNicholas
Jim serves as our Chief Financial Officer. Most recently, he was the CFO for Cumulus Networks (sold to NVIDIA). Prior to Cumulus, he held CFO roles at Panasas, VSS Network Monitoring, Solexant Corp, and Nanosolar. He entered the venture capital world after serving as the VP of Finance for 4 divisions of IBM (Hard Disk Drives, Storage Subsystems, Consumer Products Division, and Open System Servers & Software) as well as Hitachi Global Storage Technologies. Jim received a BS in Commerce & Engineering from Drexel University and an MBA from Stanford. -
Bill Madigan
Chief Commercial OfficerBill Madigan
Bill Madigan is a tech-savvy leader firmly committed to entrepreneurship, innovation, and disrupting traditional healthcare markets.. With over 25 years of commercial and business leadership, Bill’s expertise spans all key healthcare sectors including Life Sciences, Payers and Providers. Prior to joining DNAnexus, Bill served as Chief Revenue Officer (CRO) of Komodo Health. Prior to Komodo, Bill worked in leadership positions across UHG’s Optum as a Senior Director of Sales for Optum’s Life Sciences division and the US Head of Provider Analytics. Bill obtained his Masters of Business Administration (MBA) from Northeastern University in Boston, MA.
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Nupura Kolwalkar
Chief Product OfficerNupura Kolwalkar
Nupura Kolwalkar is a distinguished figure in the healthcare industry, renowned for her expertise in identifying and addressing unmet market needs through cutting-edge data, technology, and AI solutions. Throughout her illustrious career, Nupura has consistently guided organizations to conceptualize, develop, and deliver high-value products that deeply resonate with customers. Beyond driving product innovation, Nupura is committed to coaching team members in establishing resilient organizational and product strategy frameworks that cultivate robust, profitable revenue streams driving substantial market expansion. Her leadership style, honed through extensive experience from startup inception to overseeing multi-billion-dollar enterprises, ensures optimal efficiency, drives innovation, and fosters sustained revenue growth across all stages of enterprise development, while empowering teams and individuals for growth and success. Prior to her current role as Chief Product Officer, Nupura held executive positions at McKesson, ResMed, Datavant, Sharecare, and NextGen, where she earned recognition for her relentless focus on innovation. Her approach not only delights customers but also enhances operational efficiency with measurable economic impact, transforming user, developer, and partner experiences. -
Omar Serang
Chief Cloud OfficerOmar Serang
Omar has decades of experience designing global cloud platforms pioneering the use of collaborative feedback networks to solve challenging information extraction problems. He is the Principal Architect of precisionFDA.gov, the FDA cloud platform that is transforming the regulatory research and review process for precision drugs and devices. Prior to DNAnexus, Omar managed operations for the AWS Elastic Compute Cloud when single regions were topping the one-million server mark. Previously, he led platforms for a Twitter search engine at Topsy Labs, and crowd-sourced messaging security at Cloudmark. Omar received his Bachelor of Science in Chemistry from UC Berkeley. -
Kelly Green
Chief People OfficerKelly Green
Kelly leads efforts in all things "people”. She is responsible for talent acquisition, employee growth and development, building a great culture, and facilitating organizational development. Kelly joined DNAnexus after leading HR at Telenav, another disruptive tech company in Silicon Valley. There, Kelly led the HR transition from venture-backed “start up” through a successful IPO. She holds a Bachelor's in Psychology from Stonehill College.
Board of Directors
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Michael Goldberg
Executive Chair, Board of DirectorsMichael Goldberg
Executive Chair, Board of DirectorsMichael Goldberg has enabled pioneering companies that have advanced patient care in cardiology, oncology , and immunology based on genomics and related areas of digital technology for more than three decades. He has experience as a company founder, CEO, and Silicon Valley-based venture capitalist focused on biotechnology .
Michael has been an investor and board member of numerous venture backed life science companies including:
• Executive Chair, Board of Directors of DNAnexus (genomics in the cloud),
• Chair, Board of Directors CareDx - NASDAQ:CDNA (Genomic tests for organ transplant patients)
• Founding Investor, Chair/Member, Board of Directors iRhythm - NASDAQ:IRTC (wearable cardiovascular devices),
• Chair, Board of Directors of YorUltrasound ( AI driven , wireless handheld ultrasound),
• Lead Director / Member, Board of Directors eHealth, Inc– NASDAQ: EHTH (pioneer in online consumer driven healthcare)
He is a former board member of the Western Association of Venture Capitalists and of numerous non-profit and university advisory boards including:
• Harvard Center of Genetics and Genomics,
• Berkeley Center for Law and Technology,
• Caltech Division of Biology,
• Stanford Distinguished Career Institute.
He is a graduate of Brandeis University and the Stanford Graduate School of Business. -
Mike Kirkman
Board MemberMike Kirkman
Board MemberMike Kirkman is a Managing Director in Blackstone Growth (BXG) where he is focused on investments in the Healthcare sector. Mr. Kirkman is based in San Francisco.
Before joining Blackstone, Mr. Kirkman was a Director at GI Partners where he helped lead investment activity in the healthcare and software sectors. During his time at GI, he invested in and served on the boards of such companies as Netsmart, Generate Life Sciences, Clinical Ink, and MRI Software. Prior to GI, Mr. Kirkman was with JLL Partners in New York, where he began his investing career, focusing on private equity investments in North America. Mr. Kirkman currently serves on the board of the San Francisco Private Equity Network.
Mr. Kirkman holds a BS from the McIntire School of Commerce at the University of Virginia and an MBA from the Wharton School of the University of Pennsylvania. -
Thomas Laur
CEO, Board MemberThomas Laur
CEO, Board MemberThomas brings over 25 years of international experience focused on driving growth and innovation for software, data and services companies in the healthcare and life sciences space. Prior to leading DNAnexus, Thomas was EVP and President at Change Healthcare (NASDAQ: CHNG). Before that, Thomas was working for SAP, where he was President of the global health sciences division. Previously, Thomas was CEO of Sutherland Healthcare Solutions, and he also worked at Cognizant, as Managing Director responsible for a portfolio of healthcare ventures. Thomas started his career at Deloitte Consulting, where he focused on strategy, transformation, and merger & acquisition programs for technology companies. He received his Master in Business Management degree from the ICHEC Brussels Management School in Brussels, Belgium. -
Jeffrey Margolis
Board MemberJeffrey Margolis
Board MemberMr. Margolis’ extensive industry experience includes 20 years as the CEO and/or chairman and another decade as a chief information and technology officer at publicly traded and private healthcare technology companies. He most recently served as the Chairman and CEO at Welltok, Inc., where he led the company from a pre-revenue startup to a leading enterprise consumer activation company. Before joining Welltok, Inc., Mr. Margolis founded and spent 14 years as CEO and Chairman of TriZetto Corporation, the first vertical SaaS enterprise software company.
Mr. Margolis currently serves as Chairman at NextGen Healthcare (NASDAQ:NXGN), Vice Chairman at TriNetX, and as a board member at Alignment Healthcare (NASDAQ: ALHC), Hydrogen Health, and Grin. He serves as Chairman for the Hoag Clinic and the University of California at Irvine’s Center for Digital Transformation. Mr. Margolis is a leadership fellow with the National Association of Corporate Directors and a member of the American Institute of Certified Public Accountants with a Certified Global Management Accountant designation. He holds a bachelor of science degree with high honors in business administration–management information systems from the University of Illinois at Urbana-Champaign. -
Andrea Jackson
Board MemberAndrea Jackson
Board MemberAndrea Jackson is a Partner at Northpond Ventures. She joined Northpond in 2020 after 12 years of operating and finance roles in small and large scientific and technology companies. Andrea’s work at Northpond focuses on leading the people operations and portfolio management of the investment team. She serves on multiple Boards for the fund. Andrea received an MBA from Kellogg School of Management at Northwestern University and a B.A. with honors from Washington University in St. Louis. -
Ralph Snyderman, MD
Board MemberRalph Snyderman, MD
Board MemberDr. Snyderman served as Chancellor for Health Affairs and Dean of the School of Medicine at Duke University from 1989 to July 2004. During this time, he oversaw the development of the Duke University Health System and served as its first president and CEO. Dr. Snyderman’s current focus is personalized health care and he continues to lead these efforts nationally from his position as Director of the Duke Center for Personalized Health Care.
Areas of expertise and national recognition: Personalized Health Care, Immunology, Inflammation, Rheumatology and Medical Center Administration. -
Krishna Yeshwant, MD
Board MemberKrishna Yeshwant, MD
Board MemberKrishna’s path into medicine began in 2002 when he teamed with a group of surgeons at Mass General and Brigham and Women’s Hospitals (BWH) in Boston to develop new software for guiding medical procedures. Observing the operating room and research infrastructure, he says he saw firsthand how much the healthcare system needed to change. “I saw how few resources are available and how many amazing people have committed their lives to find the way forward,” he remembers. “That experience was transformative because I learned how much we can accomplish if we bring the tech and medical worlds together.”
Krishna graduated from Harvard’s M.D./M.B.A. program and went on to serve as an attending in internal medicine at BWH. He joined Google in 2008, where he was part of a team that helped in the early days of GV’s founding and led the fund’s early commitment to investing in life sciences. “It’s exciting to see the impact of exposing technologists to the challenges and realities of patient care,” he says. “The key quality is empathy, which is critical to understanding the complexities of the healthcare world.”
Krishna helps steward the GV investing team and co-leads GV’s life sciences group. As an investor, he is interested in the entire healthcare spectrum, including care delivery, health IT, devices, diagnostics, payor/provider, and therapeutics. Krishna led GV’s early investments in Adimab, Foundation Medicine, Editas Medicine, Beam Therapeutics, One Medical, and Aledade. He also established GV’s incubation program, which helped start companies like Flatiron Health, ROME Therapeutics, and Verve Therapeutics.
Krishna is particularly excited by new research that exposes biology more clearly. “We’re in an era where we can see a path to not just treating, but curing more diseases,” he says. “It’s going to be transformative, but there is so much more to do.” He is also working on new approaches to making clinical trials more efficient and ways to bring modern software approaches to healthcare delivery.