James H. Clark

James Henry Clark
James Henry Clark
Born	March 23, 1944 (age 82); Plainview, Texas, U.S.
Occupation(s)	Entrepreneur, computer scientist
Known for	Founding Silicon Graphics, Netscape, myCFO, Healtheon; contributions to computer graphics

James Henry Clark (born March 23, 1944) is an American entrepreneur and computer scientist recognized for establishing multiple prominent technology firms in Silicon Valley, such as Silicon Graphics, Netscape, myCFO, and Healtheon. His groundbreaking work in computer graphics significantly contributed to the rapid rendering of three-dimensional visuals.

In 1998, Clark was inducted into the National Academy of Engineering in recognition of his innovations in computer graphics and his influential leadership within the technology sector.

Early life and education

Clark was born in Plainview, Texas. At age 16, he left high school and subsequently served four years in the US Navy, where he acquired foundational knowledge in electronics. Following his military service, he attended night classes at Tulane University before obtaining both bachelor's and master's degrees in physics from the University of New Orleans. He earned his Ph.D. in computer science from the University of Utah in 1974.

Academia

After completing his doctorate, Clark joined the New York Institute of Technology's Computer Graphics Lab, though he was later dismissed due to insubordination. He then held a position as an assistant professor at the University of California, Santa Cruz between 1974 and 1978, followed by an appointment as an associate professor of electrical engineering at Stanford University from 1979 to 1982. His research specialized in geometry pipelines, culminating in the creation of the Geometry Engine in 1979—an early hardware accelerator designed for three-dimensional image processing.

Silicon Graphics

In 1982, Clark co-founded Silicon Graphics (SGI) alongside several graduate students from Stanford. The company initially manufactured graphical terminals but swiftly progressed to producing independent graphical Unix workstations equipped with advanced graphics hardware. By the mid-1980s, SGI had transitioned to using the MIPS CPU, replacing the earlier Motorola 68000 processors in their newest models.

By 1991, Silicon Graphics had become a dominant force in Hollywood's visual effects and 3-D imaging markets, catering primarily to high-end clients willing to invest significantly in specialized hardware and graphics software. Clark departed from SGI in January 1994 due to differing strategic visions with company management.

Netscape

In February 1994, Clark collaborated with Marc Andreessen, who had led development of the Mosaic web browser at the National Center for Supercomputing Applications (NCSA)—the first broadly accessible and user-friendly browser. Together, they founded Netscape and launched Netscape Navigator. The company's founding and its initial public offering in August 1995 triggered a surge of Internet-related investments on Wall Street throughout the mid-to-late 1990s. Clark invested $4 million during 1994 and realized $1.2 billion upon AOL's acquisition of Netscape in 1999.

Healtheon/WebMD

In 1995, Clark sought to simplify healthcare administrative processes by establishing Healtheon early in 1996, supported by venture capital firms including Kleiner Perkins and New Enterprise Associates. While Healtheon focused on advancing medical records technology, rival company WebMD, backed by Microsoft, concentrated on delivering medical content online. Clark eventually merged Healtheon with WebMD, creating WebMD Corporation (NASDAQ: WBMD), which has become a leading provider of online health information.

Additional Ventures

In 1999, Clark established myCFO to assist affluent clients in Silicon Valley with wealth management; most of its operations were sold to Harris Bank in 2002 and continued under the name Harris myCFO.

Clark was the chairman and financier of Neoteris, a network-security startup founded in 2000, which was acquired by NetScreen in 2003 and subsequently became part of Juniper Networks.

As a founding board member and investor, Clark supported biotech firm DNA Sciences (established in 1998), which leveraged internet volunteers for genetic studies; the company was acquired by Genaissance Pharmaceuticals in 2003.

He was profiled in the 1999 bestselling book The New New Thing: A Silicon Valley Story by Michael Lewis.

Clark also invested in the youth-oriented website Kibu.com, which raised approximately $22 million before shutting down in 2000 and returning funds to its investors.

In 2009, he co-produced the documentary film The Cove, providing financial backing for critical technology used to document dolphin hunting practices in Japan.

He holds a board position and is a principal investor in mobile technology firm Ibotta, which went public in April 2024.

In 2017, Clark introduced CommandScape, a cybersecurity-focused building management and automation system designed for commercial real estate.

By 2020, he announced a $30 million Series A investment round for Beyond Identity, a company delivering certificate-based authentication stored on phones that eliminates the need for passwords.

Honors

Clark was awarded the ACM SIGGRAPH Computer Graphics Achievement Award in 1984 and received the Golden Plate Award from the American Academy of Achievement in 1996. In 1997, he earned the Kilby International Award recognizing his pioneering work in computer graphics and contributions to networked information sharing.

In 1988, Clark was named Northern California's Ernst & Young Entrepreneur of the Year. He also received an honorary Doctor of Science (ScD) degree from the University of East Anglia in 1998.

Personal Details

Clark has been married four times and is a father to four children. His divorce from his third wife, Nancy Rutter—a journalist with Forbes—reportedly cost him $125 million. In 2009, he wed Australian model Kristy Hinze; they have two daughters born in 2011 and 2013. His daughter Kathy from an earlier marriage married YouTube co-founder Chad Hurley in 2000; they divorced in 2012.

In 2022, Clark completed Florida’s largest residential property transaction by selling a 22-acre estate in Manalapan to Larry Ellison for about $175 million. He had purchased this property from the Ziff publishing family in 2021 for $94 million.

Sailing Interests

An avid yachtsman, Clark avoids challenging ocean races such as the Sydney-Hobart due to arthritis, preferring shorter regattas held in locations like the Mediterranean, Caribbean, and Newport, Rhode Island. In 2012, after owning boats for nearly three decades, he commented that he was "over it."

Among his previous ownerships were two distinguished sailing yachts:

Hyperion, launched in 1998 as the largest sloop worldwide at . Designed by Germán Frers and constructed by Royal Huisman, it featured a record-setting carbon fiber mast. Clark engineered bespoke control systems to automate sailing functions and enhance performance. He sold Hyperion in 2004.
Comanche, a carbon fiber maxi yacht designed by VPLP and built by Hodgdon Shipbuilding. Created for line honours victories, it narrowly lost to Wild Oats XI during the 2014 Sydney-Hobart but secured victory in 2015. The yacht set the monohull 24-hour speed record during the 2015 Transatlantic race and broke the Newport to Bermuda Race record in 2016. It was sold to Australian Jim Cooney in December 2017.

Currently, Clark owns two other significant sailing vessels:

Athena, a three-masted gaff-rigged aluminum schooner built by Royal Huisman. It has been on sale since July 2012; its asking price decreased from US$95 million to $59 million by February 2017.
Hanuman, a replica of the J-class yacht Endeavour II, also constructed by Royal Huisman. Listed for sale since May 2012, it had an asking price of US$14.9 million as of 2021.

Flying

Clark is an aviator with a passion for piloting helicopters, German-engineered gliders, and aerobatic planes such as the Extra EA-300.

Philanthropy

Clark has been a major benefactor to Stanford University, where he once held a position as an associate professor in electrical engineering. In 1999, he pledged $150 million to establish the James H. Clark Center for Biomedical Engineering and to support interdisciplinary biomedical research efforts, representing one of Stanford’s most substantial gifts beyond its original endowment. Construction of the center started in 2001 and was completed by 2003 as a key component of Stanford’s Bio-X program. Nevertheless, in 2001, Clark withdrew $60 million from his original commitment due to federal limitations on stem cell research funding, underscoring his belief that innovation requires unrestricted financial support. These federal restrictions were eventually lifted in 2009 during President Obama’s administration.

In 2013, Clark made an additional pledge of $60 million aimed at fostering cross-disciplinary research in life sciences, technology, and engineering at Stanford, which he fulfilled by 2020. Furthermore, he contributed $10 million to create fellowships at the Stanford Institute for Theoretical Physics.

Together with Yahoo! co-founder David Filo, Clark donated $30 million each in 2004 to Tulane University’s School of Engineering to establish merit-based scholarships designed to increase access to engineering education regardless of economic background.

Clark is a member of the national council for the World Wide Fund for Nature (WWF) and actively supports its conservation efforts. Moreover, the Perlman Music Program has acknowledged his sustained philanthropic involvement and contributions to their endowment fund.

External links

"Jim Clark", Salon.com, November 24, 1999
"James H. Clark", Business Week, 1999