In March 2014, GitHub programmer Julie Ann Horvath publicly alleged that co-founder and then-CEO Tom Preston-Werner and his wife, Theresa, had engaged in a pattern of harassment that contributed to her departure from the company. GitHub initially denied Horvath’s allegations in an April 2014 statement, making the dispute a leadership and workplace-governance crisis at one of the software industry’s most prominent developer platforms.
GitHub subsequently conducted an internal investigation and confirmed Horvath’s claims, according to the supplied account. Preston-Werner resigned as CEO, while co-founder Chris Wanstrath became chief executive and general counsel Julio Avalos took control of business operations and day-to-day management. The episode also prompted GitHub to introduce middle management in 2014, ending its earlier self-management model. The leadership change became part of the company’s wider governance history before Microsoft acquired GitHub for $7.5 billion in a deal announced June 4, 2018, and completed October 26, 2018.