John L.  Hennessy net worth and biography

John Hennessy Biography and Net Worth

Director of Alphabet

John L. Hennessy, Professor of Electrical Engineering and Computer Science, served as President of Stanford University from September 2000 until August 2016. In 2017, he initiated the Knight-Hennessy Scholars Program, the largest fully endowed graduate-level scholarship program in the world, and he currently serves as Director of the program.

Hennessy, a pioneer in computer architecture, joined Stanford’s faculty in 1977 as an assistant professor of electrical engineering. In 1981, he drew together researchers to focus on a technology known as RISC (Reduced Instruction Set Computer), which revolutionized computing by increasing performance while reducing costs. Hennessy helped transfer this technology to industry cofounding MIPS Computer Systems in 1984. His subsequent research focused on multiprocessor systems, including the DASH and FLASH projects, both of which pioneered concepts now used in industry. He was appointed as the inaugural Willard R. and Inez Kerr Bell Professor of Electrical Engineering and Computer Science in 1987. He has been chair of Computer Science (1994-1996), dean of the School of Engineering (1996-1999), and university provost (1999-2000) before being appointed as Stanford’s 10th president in 2000. As president he focused on increasing financial aid and on developing new initiatives in multidisciplinary research and teaching. He was the founding board chair of Atheros Communications, one of the early developers of WiFi technology, and has served on the board of Cisco and Alphabet (Google’s parent company). He is the coauthor (with David Patterson) of two internationally used textbooks in computer architecture.

His honors include the 2012 Medal of Honor of the Institute of Electrical and Electronics Engineers, the 2017 ACM Turing Award (jointly with David Patterson), the 2001 Eckert-Mauchly Award of the Association for Computing Machinery; the 2001 Seymour Cray Computer Engineering Award, and the 2004 NEC C&C Prize for lifetime achievement in computer science and engineering. He is an elected member of the National Academy of Engineering, the National Academy of Science, the American Academy of Arts and Sciences, The Royal Academy of Engineering, and the American Philosophical Society. Hennessy earned his bachelor’s degree in electrical engineering from Villanova University and his master’s and doctoral degrees in computer science from the Stony Brook University.

What is John L. Hennessy's net worth?

The estimated net worth of John L. Hennessy is at least $1.03 million as of February 12th, 2024. Mr. Hennessy owns 7,164 shares of Alphabet stock worth more than $1,031,329 as of February 23rd. This net worth estimate does not reflect any other investments that Mr. Hennessy may own. Learn More about John L. Hennessy's net worth.

How do I contact John L. Hennessy?

The corporate mailing address for Mr. Hennessy and other Alphabet executives is 1600 AMPHITHEATRE PARKWAY, MOUNTAIN VIEW CA, 94043. Alphabet can also be reached via phone at (650) 253-0000 and via email at [email protected]. Learn More on John L. Hennessy's contact information.

Has John L. Hennessy been buying or selling shares of Alphabet?

During the past quarter, John L. Hennessy has sold $148,482.00 in Alphabet stock. Most recently, John L. Hennessy sold 800 shares of the business's stock in a transaction on Monday, February 12th. The shares were sold at an average price of $149.73, for a transaction totalling $119,784.00. Following the completion of the sale, the director now directly owns 7,164 shares of the company's stock, valued at $1,072,665.72. Learn More on John L. Hennessy's trading history.

Who are Alphabet's active insiders?

Alphabet's insider roster includes Sergey Brin (Director), John Hennessy (Director), Ann Mather (Director), Amie O'Toole (CAO), Lawrence Page (Director), Sundar Pichai (CEO), Ruth Porat (Sr. VP & CFO ), Prabhakar Raghavan (SVP), Philipp Schindler (SVP), Kavitark Shriram (Director), and John Walker (Insider). Learn More on Alphabet's active insiders.

Are insiders buying or selling shares of Alphabet?

During the last twelve months, Alphabet insiders bought shares 3 times. They purchased a total of 732,217 shares worth more than $21,135,370.82. During the last twelve months, insiders at the information services provider sold shares 69 times. They sold a total of 1,327,166 shares worth more than $92,633,686.12. The most recent insider tranaction occured on February, 21st when CEO Sundar Pichai sold 22,500 shares worth more than $3,219,300.00. Insiders at Alphabet own 0.9% of the company. Learn More about insider trades at Alphabet.

Information on this page was last updated on 2/21/2024.

John L. Hennessy Insider Trading History at Alphabet

Transaction DateBuy/SellNumber of SharesAverage Share PriceTotal TransactionShares Held After TransactionDetails
2/12/2024Sell800$149.73$119,784.007,164View SEC Filing Icon  
1/10/2024Sell200$143.49$28,698.006,784View SEC Filing Icon  
12/11/2023Sell200$133.97$26,794.006,984View SEC Filing Icon  
11/10/2023Sell200$132.92$26,584.007,184View SEC Filing Icon  
10/10/2023Sell200$139.93$27,986.007,384View SEC Filing Icon  
9/11/2023Sell200$137.30$27,460.007,584View SEC Filing Icon  
8/10/2023Sell200$131.14$26,228.005,340View SEC Filing Icon  
7/13/2023Sell200$125.00$25,000.005,540View SEC Filing Icon  
6/13/2023Sell200$125.65$25,130.005,740View SEC Filing Icon  
5/19/2023Sell800$125.00$100,000.005,940View SEC Filing Icon  
9/9/2022Sell1,500$110.00$165,000.0033,260View SEC Filing Icon  
8/10/2022Sell500$120.00$60,000.0034,760View SEC Filing Icon  
7/11/2022Sell75$2,337.13$175,284.75233View SEC Filing Icon  
6/9/2022Sell33$2,348.39$77,496.8778View SEC Filing Icon  
5/9/2022Sell31$2,280.98$70,710.38265View SEC Filing Icon  
See Full Table

John L. Hennessy Buying and Selling Activity at Alphabet

This chart shows John L Hennessy's buying and selling at Alphabet by year and by quarter.

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Alphabet Company Overview

Alphabet logo
Alphabet Inc. offers various products and platforms in the United States, Europe, the Middle East, Africa, the Asia-Pacific, Canada, and Latin America. It operates through Google Services, Google Cloud, and Other Bets segments. The Google Services segment provides products and services, including ads, Android, Chrome, devices, Gmail, Google Drive, Google Maps, Google Photos, Google Play, Search, and YouTube. It is also involved in the sale of apps and in-app purchases and digital content in the Google Play and YouTube; and devices, as well as in the provision of YouTube consumer subscription services. The Google Cloud segment offers infrastructure, cybersecurity, databases, analytics, AI, and other services; Google Workspace that include cloud-based communication and collaboration tools for enterprises, such as Gmail, Docs, Drive, Calendar, and Meet; and other services for enterprise customers. The Other Bets segment sells healthcare-related and internet services. The company was incorporated in 1998 and is headquartered in Mountain View, California.
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Today's Range

Now: $143.96
Low: $143.44
High: $144.68

50 Day Range

MA: $142.90
Low: $135.73
High: $153.51

2 Week Range

Now: $143.96
Low: $88.57
High: $153.78


19,475,797 shs

Average Volume

28,733,861 shs

Market Capitalization

$1.80 trillion

P/E Ratio


Dividend Yield



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