Chair & Chief Executive Officer
Chief Financial Officer
Chief Marketing Officer
Karen is our Chief Marketing Officer at Seer. She was most recently Vice President, Global Marketing and Communications for Illumina Inc. overseeing all areas of communications, marketing, eCommerce and corporate citizenship over a 16 year period of rapid growth. During her tenure at Illumina, Karen also served as Chief of Staff to the CEO across two CEOs, established the Women’s Leadership Network, founded the Illumina Foundation and drove multiple cross-sector programs for the company. Prior to Illumina, she served in commercial leadership roles at Qiagen and Invitrogen, building from early stage success and profitability to growth at scale. Karen has received multiple awards in the community, including San Diego Business Journal Business Woman of the Year 2019. She is a member of the Dean’s Leadership Council for the Biological Sciences Division of UCSD. Karen holds a Bachelor’s in Biochemistry and Cell Biology from the University of California, San Diego.
Chief Commercial Officer
Prior to joining Seer, Mr. Thomas led the go-to-market strategy for Singular Genomics’ next-generation benchtop sequencer, consumables, and service products. He has held numerous roles with escalating commercial responsibilities at Illumina including Vice President, Global Commercial Strategy and Enablement. Previously he served as Vice President and General Manager of Illumina Japan, and Senior Director, Sales for Europe, Middle East, and Africa. Before his tenure at Illumina, Scott held roles for Providence Health and Services, Roche, Abbott Laboratories and Sigma Alpha Epsilon. Scott holds a bachelor’s degree in Public Relations from the University of Idaho, a master’s degree in Healthcare administration from the University of Washington and completed the Advanced Management Program (AMP) at the IESE Business School, University of Navarra.
Chief People Officer
Marissa is our Chief People Officer. Prior to joining Seer, Marissa was Vice President of Human Resources of CareDx where she helped to grow the business from 70 million and 140 employees to over 190 million and 500 employees in a little over 3 years. Marissa brings over 20 years of human resources leadership experience to Seer, holding various HR roles with increasing responsibility in the biotech industry at companies such as Metabiota and DuPont Industrial Biosciences. Marissa holds Master’s degrees in HR Design and Psychology from Claremont Graduate University. In addition, she holds a Bachelor’s in Social Sciences from California Polytechnic State University, San Luis Obispo.
Chief Data Officer
Chief Operations and Product Officer
SVP, Research and Tech Development