In 2012 GitHub raised the largest first round of venture capital funding at $100 million. Preston-Werner also created the avatar service Gravatar which he sold to Matt Mullengweg, the founder of WordPress. He went on to co-found the non-profit organization Codestarter which donates computers to child programmers. On June 4, 2018, Microsoft agreed to acquire GitHub for $7.5 billion. As a result of the acquisition, Tom Preston-Werner was given $1.25 billion worth of Microsoft stock. Two of his co-founders also received more than $1 billion in Microsoft from the sale. The largest shareholder, Chris Wanstrath, received $1.5 billion.