Reported net worth: $7.2B (as of 2025).
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James Henry Clark is an American entrepreneur and computer scientist. He founded several notable Silicon Valley technology companies, including Silicon Graphics, Netscape, myCFO, and Healtheon. His research work in computer graphics led to the development of systems for the fast rendering of three-dimensional computer images.
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business · American computer scientist and entrepreneur · computer scientist · engineer · businessperson · entrepreneur · university teacher · also James H. Clark, James Henry Clark, James Clark, Jim Clark, Clark
Born 23 March 1944 · Q1373397
26 published statements · 0 followers
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Reported net worth: $7.2B (as of 2025).
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Made the largest residential real estate sale in Florida history, selling a 22-acre property in Manalapan, Florida to Larry Ellison for approximately $175 million
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From the Ziff publishing family for $94 million
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Clark had previously acquired the property in 2021 from the Ziff publishing family for $94 million.
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Clark announced the $30M A round of funding for Beyond Identity, with a product that is a phone-resident personal certificate-based authentication and authorization solution that eliminates all passwords
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Clark announced the launch of CommandScape, a cyber secure building management and automation platform
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With Skipper Ken Read and Stan Honey navigating, she set the Newport to Bermuda Race record, shaving five hours off the previous fastest time recorded in the 635 mile race
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Clark pledged an additional $60 million to Stanford for interdisciplinary research in the life sciences, technology, and engineering
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In 2013, Clark pledged an additional $60 million to Stanford for interdisciplinary research in the life sciences, technology, and engineering.
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However, he commented that "after 28 years of owning boats, I'm over it
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Clark and David Filo of Yahoo
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The company was acquired by Genaissance Pharmaceuticals Inc
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And was completed in the summer of 2003, as part of Stanford's Bio-X program
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His daughter by a previous marriage, Kathy, married Chad Hurley, a co-founder of YouTube, they were divorced in 2012
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Returning its remaining capital to investors
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Which was acquired by NetScreen in 2003 and subsequently by Juniper Networks
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Clark launched myCFO, a company formed to help wealthy Silicon Valley individuals manage their fortunes
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Pledged $150 million toward construction of the James H
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To unravel the genetics of common disease using volunteers recruited from the Internet launched August 1, 2000 (see The New York Times)
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Clark was elected a member of the National Academy of Engineering for the development of computer graphics and for technical leadership in the computer industry
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Received the Golden Plate Award of the American Academy of Achievement
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Clark became interested in streamlining the paperwork associated with the health-care industry
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Published “Development and validation of brief measures of positive and negative affect: The PANAS scales.” in Journal of Personality and Social Psychology — cited 29,355 times.
Clark was an Award Recipient of the EY Entrepreneur of the Year Award in the Northern California Region
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Clark along with several Stanford graduate students founded Silicon Graphics (SGI)
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Born 1944-03-23.
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