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Pierre Omidyar wrote the code for AuctionWeb in 1995 while working as a software engineer, then turned the side project into eBay and retained founder ownership through its rapid expansion. [1][5]
A side project becomes a marketplace
Omidyar studied computer science and worked in software before launching AuctionWeb over Labor Day weekend in 1995. eBay's corporate history says he wrote the code on his personal computer and built the site around a simple marketplace model connecting buyers and sellers directly. [1][3]
The experiment quickly became a business. eBay records that merchandise volume reached millions of dollars in the site's first full year, while Omidyar remained the founder and board chairman as the company professionalized and later went public. [1][2]
Founder equity and a broader investment platform
eBay's public offering turned Omidyar's retained founder stake into a large fortune. He later stepped back from board leadership and used part of that wealth for philanthropy, impact investing and media ventures, but eBay remained the central origin of the capital base. [4][5][2]
The distinction between eBay's corporate value and Omidyar's own wealth matters because only his retained ownership interest belonged to him personally. Later investments and philanthropic commitments were uses of capital created from that founder stake rather than evidence that the full value of eBay sat on his individual balance sheet. [4][5]
Sources for background
Sources reviewed Sep 15, 2026.
- Our History · eBay
- Corporate Governance - Board of Directors · eBay
- Who Got Rich This Week: Omidyar Gets A Bump As Ebay Stock Surges, Paypal Inks New Partnership · Forbes · Jul 23, 2016
- Pierre Omidyar: Ridiculous Rich, And Giving It All Away · Forbes · Sep 23, 2010
- Pierre Omidyar · Forbes · Jul 15, 2026
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