Ken Xie
American billionaire businessman (born 1963)
Ken Xie (Chinese: 谢青; pinyin: Xiè Qīng) is a Chinese billionaire businessman who founded Systems Integration Solutions (SIS), NetScreen, and Fortinet.2
From Wikipedia’s article on Ken Xie (this version), CC BY-SA 4.0.
Born 1963.1
Net worth $5.6B (as of 2025, per forbes.com).16 Richest people
About
He is CEO of Fortinet, a cybersecurity firm based in Silicon Valley. Xie was previously the CEO of NetScreen, which was acquired by Juniper Networks for $4 billion in 2004. He built the first ASIC-based firewall/VPN appliance in 1996.
From Wikipedia’s article on Ken Xie, shared under CC BY-SA 4.0.2
Companies
Holdings
Stock this person has reported owning, from the forms officers and directors file with the SEC. See the biggest insider stakes.
Shares held
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As of each latest filing. The line shows shares held over time.
Recent filings
- Aug 3, 2026Sold 162 shares at $164.49 of Fortinet12
- Aug 3, 2026Sold 47,943 shares at $163.91 of Fortinet12
- Aug 3, 2026Sold 67,971 shares at $163.08 of Fortinet12
- Aug 3, 2026Sold 7,350 shares at $161.82 of Fortinet12
- Aug 3, 2026Sold 19,647 shares at $160.82 of Fortinet12
- Aug 3, 2026Sold 18,409 shares at $160.14 of Fortinet12
- Aug 3, 2026Exercised options 155,000 shares at $22.90 of Fortinet12
- Aug 1, 2026Shares withheld for tax 6,611 shares at $161.95 of Fortinet12
- Aug 1, 2026Exercised options 2,275 shares of Fortinet12
- Aug 1, 2026Exercised options 4,558 shares of Fortinet12
- Aug 1, 2026Exercised options 6,260 shares of Fortinet12
- Jun 2, 2026Sold 8,627 shares at $148.94 of Fortinet13
- Jun 2, 2026Sold 18,492 shares at $148.24 of Fortinet13
- Jun 2, 2026Sold 13,790 shares at $147.37 of Fortinet13
- Jun 2, 2026Sold 37,540 shares at $146.36 of Fortinet13
- Jun 2, 2026Sold 12,821 shares at $145.04 of Fortinet13
- Jun 2, 2026Sold 39,854 shares at $144.29 of Fortinet13
- Jun 2, 2026Sold 19,867 shares at $143.43 of Fortinet13
- Jun 2, 2026Sold 9,641 shares at $142.37 of Fortinet13
- Jun 2, 2026Exercised options 155,000 shares at $22.90 of Fortinet13
- May 4, 2026Sold 137 shares at $89.61 of Fortinet14
- May 4, 2026Sold 4,383 shares at $89.12 of Fortinet14
- May 4, 2026Sold 425 shares at $88.09 of Fortinet14
- May 4, 2026Sold 410 shares at $87.04 of Fortinet14
- May 1, 2026Shares withheld for tax 6,611 shares at $86.29 of Fortinet14
Early life and education
Xie was born and raised in China. He graduated from Tsinghua University with a B.S. and M.S. in electrical engineering, and from Stanford University with an M.S. in electrical engineering.
From Wikipedia’s article on Ken Xie (this version), CC BY-SA 4.0.
Career
Occupation: businessperson.5
In 1993, Xie founded a network security company, Systems Integration Solutions (SIS). Xie built the first ASIC-based firewall/VPN appliance in 1996, in his garage in Palo Alto, California. That same year he founded NetScreen Technologies, an online security firm, with Yan Ke and Feng Deng. NetScreen Technologies was later acquired by Juniper Networks Inc. for $4 billion.
Fortinet
In 2000, Xie left NetScreen to create Fortinet with his brother Michael Xie, an electrical engineer. Since then, Ken Xie has served as Fortinet's CEO, while Michael Xie is president and chief technology officer. Xie has stated that he founded Fortinet because he believed that security must be embedded in the end-to-end computing and networking infrastructure. The Xie brothers launched the initial FortiGate products in May 2002. Xie has led Fortinet to acquire security monitoring firm AccelOps, endpoint security firm enSilo, SOAR platform provider CyberSponse, and the IoT-focused security firm Bradford Networks.
In January 2019, Xie was a discussion leader for the Centre for Cybersecurity's cyber workforce session at Davos’ World Economic Forum (WEF) summit. In February 2020, Ken Xie spoke at the RSA conference in San Francisco about the importance of SD-WAN, edge computing, and automation. Xie is a founding member and a member of the board of directors of the Cyber Threat Alliance.
From Wikipedia’s article on Ken Xie (this version), CC BY-SA 4.0.
Personal life
Xie is married and lives in Los Altos Hills, California. He is the father of Jaime Xie, a fashion influencer and star on the Netflix reality TV series Bling Empire. In September 2020, Xie joined the Forbes 400 list.
Xie was made a member of the National Academy of Engineering in 2013.
From Wikipedia’s article on Ken Xie (this version), CC BY-SA 4.0.
Philanthropy
Private foundation
Xie runs a private foundation, along with his brother. Since 2009, Xie has had more than $30 million in income tax deductions by contributing shares of Fortinet to this private foundation. In 2017, the private foundation spent $3 million on a home in Cupertino, California which Xie and his then-girlfriend lived in. In January 2020, the house was transferred from the foundation to a LLC.
From Wikipedia’s article on Ken Xie (this version), CC BY-SA 4.0.
Links
Sources
The numbers on this page point here. Each one links to the record it came from.
- 1WikidataKen Xie on Wikidata
- 2WikipediaKen Xie on Wikipedia
- 3WikidataKen Xie: education, on Wikidata
- 4
- 5WikidataKen Xie: occupation, on Wikidata
- 6
- 7
- 8SEC EDGARFortinet, Board member
- 9WikidataFortinet, Founder
- 10SEC EDGARTelenav, Board member
- 11SEC EDGARFortinet, Chair
- 12
- 13SEC EDGARForm 4 filed Jun 3, 2026
- 14SEC EDGARForm 4 filed May 5, 2026
- 15Wikimedia CommonsKen Xie photo by World Economic Forum, CC BY 3.0
- 16WikidataNet worth