David Filo Net Worth

David Filo has an estimated net worth of $5.2 billion, according to Forbes Real-Time Billionaires, David Filo profile (figures as of October 20, 2026). That is up from $4.8 billion in 2019.

David Filo is an American businessman and engineer best known for helping start Yahoo with Jerry Yang. In 1994, they created a site called Jerry and David's Guide to the World Wide Web. It later became Yahoo, a web portal and directory that grew into one of the early internet's best-known brands. Filo also wrote server-side software used on early Yahoo pages, helping the site deliver changing content to visitors.

His wealth comes mainly from Yahoo, the internet company he helped build in the 1990s. Yahoo began as a directory of websites and expanded into a wider set of online products and services. In 2016, Yahoo sold its core business to Verizon for $5 billion in cash. The company's stakes in Alibaba and Yahoo Japan later became Altaba, which voted to liquidate in 2019. That long corporate path explains why Yahoo remained central to his fortune.

How David Filo built his fortune

Filo's money story starts with Yahoo, the company he cofounded after creating an early web guide with Jerry Yang in 1994. Yahoo became a major internet portal during the 1990s and drew heavy traffic with its directory and other online services. Filo was not only a founder but also an engineer. His Filo Server Program helped power early Yahoo pages by serving changing web content to people visiting the site.

Later, the business changed shape, but Yahoo stayed at the center of his wealth. In 2016, Yahoo sold its core business to Verizon for $5 billion in cash. The most valuable assets left were Yahoo's stakes in Alibaba and Yahoo Japan. Those holdings became part of Altaba, a separate company that later moved to liquidate in 2019. That sequence helps explain why his fortune is tied to Yahoo's later corporate structure.

Forbes estimate and other money notes

Forbes tracks Filo in the technology industry and counts him as self-made. On its real-time billionaires tracker, Forbes estimated his fortune at $5.2 billion as of October 20, 2026. That estimate is linked to the value created by Yahoo and to the assets that remained after the Verizon deal. His profile shows how internet wealth can come from both an operating business and major equity holdings tied to that business.

Filo has also directed part of that wealth into education and philanthropy. He and his wife Angela started the Yellow Chair Foundation in 2000, supporting education, civil liberties, gender equality and the environment. In 2004, he donated $30 million to Tulane University for engineering and computer science scholarships. Those gifts do not explain how he made his money, but they do show where some of it has gone after Yahoo.