OUR MANAGEMENT TEAM

Matthew Rabinowitz, PhD

Chief Executive Officer

Dr. Matthew Rabinowitz has had dual careers in industry and academia. He completed his B.A., M.Sc. and Ph.D. degrees at Stanford University, receiving both the Levin and Terman Awards — the highest academic honors offered respectively in engineering and physics — and a graduate fellowship to the school of engineering. While completing his dissertation, Dr. Rabinowitz co-founded an intelligent online merchandizing company, Panop.com, which later sold for $100M. Shortly after, Dr. Rabinowitz started his second company, Rosum, which developed a location technology using TV signals to augment GPS. Rosum received the World Economic Forum “100 Technology Pioneers” award when he was CTO.

In 2003, Dr. Rabinowitz’s life took a turn. A family member had a child born with a genetic disease and the child died. Dr. Rabinowitz experienced firsthand the trauma, stress, and devastation that an unexpected diagnosis of genetic disease can bring to a family and he was moved to action.

Drawing on expertise from his seemingly unrelated background, Dr. Rabinowitz embarked on a journey with the goal of ensuring that other families need not experience similar pain wrought by the inability to have a healthy child. Bringing together a team of experts in medicine, engineering, statistics, and genetics, along with his own skills in optimization, signal processing, informatics, and entrepreneurship – Natera was born.

Dr. Rabinowitz is now an authority in the field of prenatal and preconception informatics-based genetic testing. He has served as the Principal Investigator on six research grants awarded by the National Institutes of Health from which multiple publications have emerged in the leading journals of the field such as Bioinformatics, Human Reproduction, and Molecular Human Reproduction. He actively presents at medical conferences around the world, including at the annual meeting of the American College of Medical Genetics, American Society of Reproductive Medicine, and Fetal Medicine Foundation World Congress.

Dr Rabinowitz is a board member, advisor, and angel investor for multiple technology companies in the fields of biotech, communications, cleantech and healthcare. He has received the Scott Helt Memorial Award from IEEE and was selected by MIT Technology Review Magazine as one of the top 35 technology innovators under 35 in the US. 

Natera’s results have been no less than remarkable. Dr. Rabinowitz and the entire Natera team share a dedicated passion to bringing the breakthrough Parental Support technology to those who need it most in their pursuit of a healthy family.

Jonathan Sheena, M.Eng

Chief Technology Officer

Mr. Sheena is company co-founder and an experienced entrepreneur with proven success in technology innovation. Before co-founding Natera, Mr. Sheena founded PocketThis which has offices in the UK and the US and sells cutting edge server technology to mobile networks worldwide. Mr. Sheena’s background is in personalization technology. While a graduate student at MIT, and in partnership with the Associated Press, Reuters, Knight Ridder, ABC, and the New York Times, he built the first web based personalized newspaper called “Fishwrap”. The technology was licensed by and deployed to newspapers worldwide, most notably the San Francisco Chronicle. After MIT, Mr. Sheena worked as a lead architect at Firefly, a pioneering company in online community, personalization and collaborative filtering. Firefly was purchased by Microsoft, where Mr. Sheena then worked to bring online the largest running personalization and online identity system used by tens of millions of people around the globe. He holds both M.S. and B.S. degrees from MIT as well as a number of patents in internet and mobile technology.

Brad Roberts

Chief Operating Officer & Vice President, Finance

Mr. Roberts is an experienced finance and operations executive with demonstrated success in scaling and growing businesses.  In growing small businesses, Mr. Roberts led multi-million dollar improvements in the operations at Inflection.com and founded an innovative ecommerce website, Craft.com.  As a senior executive with Synopsys, Mr. Roberts lead multiple Sales and Finance teams as the business grew over 10% CAGR and crossed $1B in revenue. Mr Roberts was responsible for building strategic customer partnerships, introducing innovative financial forecasting methods, and streamlining operations to deliver improved market responsiveness.  Prior to his corporate executive career, Mr. Roberts was a senior manager at the global consulting firm Bain & Company where he led strategy projects in technology, health care, and industrial industries. Mr. Roberts holds an MBA from Harvard Business School as well as bachelor degrees from the University of Pennsylvania's Engineering school and Wharton school.

Gautam Kollu

Vice President, Marketing and Business Development

Mr. Kollu’s area of expertise is the market introduction and adoption of medical innovations, having led or worked on the pre-launch, peri-launch and post-launch commercialization of the biotech industry’s most successful products including Avastin, Herceptin, cabozantinib, T-DM1 and Erbitux. He joined Natera from Exelixis, where he was VP of Commercial and led teams charged with the marketing, distribution and customer management of the company’s lead product. He previously led strategic marketing programs for Exelixis’s portfolio of innovative compounds. At Genentech, Mr. Kollu led a launch team in the inception and build-out of a new business for Avastin. His team oversaw strategic planning and marketing initiatives from Phase I through FDA label negotiations and commercialization, growing the product to a market leading position. Earlier, he progressed through several line management and staff roles of increasing responsibility within Genentech’s commercial organization. Mr. Kollu also held marketing and business development roles at Imclone Systems, Infinity Pharmaceuticals and Bionovo. He started his marketing career with Procter & Gamble and worked as a management consultant with Bain & Co. He holds a Bachelor's degree in Chemical Engineering from the Indian Institute of Technology at Bombay and an MBA from The Wharton School at the University of Pennsylvania.

Steve Chapman

Vice President, Sales

Mr. Chapman joins Natera from Genzyme, where his team was responsible for over 70 million dollars of revenue in the Northeastern United States. Mr. Chapman established the largest network of physicians in the world routinely screening Fragile X and led Genzyme’s sales initiative into population screening for Fragile X. Mr. Chapman proved to be a visionary in 2005 when he brought carrier screening of Spinal Muscular Atrophy (SMA) to the forefront of efforts at Genzyme. He played a critical role in the groundbreaking launch of SMA carrier screening in 2008 and was responsible for over 35% of the initial uptake in the United States during the first 6 months of the launch. Steve has been the direct recipient of 27 sales awards, most notably a two-time winner of the prestigious Alpine Award, which was given to one person throughout Genzyme Corporation, which has over 8,000 employees world wide. This award recognized outstanding achievement and innovation, and the recipient was hand selected by CEO Henri Teermer. Prior to joining Genzyme, Mr. Chapman was at UCLA in the Department of Human Genetics working on Multiple Sclerosis. During his time at UCLA, he contributed to the selection process and design of oligo nucleotide arrays used to identify SNP’s associated with Multiple Sclerosis. Steve holds a Bachelors of Science in Microbiology, Immunology, and Molecular Genetics from University of California, Los Angeles.

Matthew Hill, PhD

Vice President, Research

Dr. Hill’s expertise is in the areas of genetics, molecular biology, and bioinformatics. He received is B.S. in Biology from Cornell University and a Ph.D. in Genetics from Stanford University. While at Stanford Dr. Hill constructed the first genetic map of an important chordate model organism that led to important insights about the nature of genome evolution. In the process he also developed an algorithm that reduced the compute time required for whole genome sequence alignments from weeks to hours. His prior industry experience involved developing techniques for interrogating the function of genes. Since joining Natera in early 2009 he has been instrumental in leading the research and development of single-gene PGD, translocation testing, carrier screening, non-invasive paternity testing, and non-invasive prenatal testing.

Jennifer Keller, MS, MBA, CGC

Vice President, Clinical Affairs and Medical Education

Ms. Keller has fifteen years of clinical and business experience in the healthcare and biotech industries. She is a board certified genetic counselor with extensive experience in prenatal, pediatric, and adult genetics, with a particular emphasis in genetic screening program delivery. Ms. Keller began her career at the Genetics Clinic at Stanford Hospital where she coordinated the California state Expanded AFP Screening Program and provided patient care for prenatal genetic indications. After completing her M.B.A., Ms. Keller transitioned to healthcare consulting and biotechnology marketing for companies including Kaiser Permanente, Cord Blood Registry, and Genentech. She has been responsible for the design and execution of a number of physician marketing programs and has past experience in forecasting, program analysis, and market planning. Ms. Keller holds a B.S. from San Francisco State University, an M.S. in Health and Medical Sciences from the University of California at Berkeley, and an M.B.A. from the University of California, Irvine.

Styrmir Sigurjonsson, PhD

Director of Statistics

Dr. Sigurjonsson's expertise is in the areas of probabilistic modeling and statistics.  Prior to Natera, Dr. Sigurjonsson held various positions in the financial services sector.  He developed probability of default models in fixed income at Citi's investment bank.  He later joined Straumur Investment where he founded a quantitative trading desk and ran the domestic derivatives desk.  Dr. Sigurjonsson has broad experience in developing statistical models and algorithms for critical real-world applications.  He received his C.S. in Electrical and Computer Engineering from the University of Iceland, M.S. and Ph.D. in Electrical Engineering from Stanford University. At Stanford University he was a member of the Information Theory Group where he conducted research in the areas of estimation, information theory and probability.

Daniel Rabinowitz, LL.M.

General Counsel

Mr. Rabinowitz currently serves as General Counsel and Corporate Secretary of Natera. Prior to joining Natera he was a corporate partner at the law firm McDermott, Will & Emery, and before that, was a corporate lawyer at the law firm Davis Polk & Wardwell. During this time Mr. Rabinowitz worked in the United States and Europe advising domestic and foreign, as well as public and private, companies on capital raisings, M&A, investment management and compliance with US federal and state securities law. He then studied genetics, biochemistry, and molecular biology at the Harvard  University Extension School and attended courses on the legal and ethical aspects of biotechnology at Harvard Law School. Mr. Rabinowitz completed his B.A. and LL.B. degrees at the University of the Witwatersrand, South Africa, graduating at the top of his law school class, and completed his LL.M. at New York University School of Law on Rotary Foundation and Fulbright Scholarships.

Barbara Pettersen, MS, CGC

Clinical Director

Ms. Pettersen is a board certified genetic counselor who has worked in the field of clinical genetics for over 26 years. She has extensive experience in prenatal, pediatric and adult genetics, including hereditary cancer, cardiovascular and metabolic disorders. Prior to joining Natera, she has held genetic counseling positions at the University of Colorado Health Sciences Center, Stanford University Medical Center, and Kaiser-Permanente Medical Center and her own private practice. Ms. Pettersen has also served as the clinical consultant for the Northern California Kaiser Regional Molecular Genetics Diagnostic Laboratory and has particular expertise in the clinical applications of genetic testing. She has a strong interest in PGD and other technologies that can help families in their quest to have children free of serious genetic conditions. She is actively involved in the National Society of Genetic Counselors (NSGC), has served two terms on the board of directors, was awarded the NSGC Regional Leadership award, and has been co-author on a number of NSGC-sponsored Genetic Counseling Practice Guidelines. She is currently serving on the Board of Directors of the American Board of Genetic Counseling (ABGC) and was Chair of the ABGC Certification Examination Committee from 2007 through 2010. Ms. Pettersen holds a B.S. in Psychology and an M.S. in Medical Genetics from the University of Wisconsin-Madison.

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