Github’s Tom Preston-Werner resigns at close of sexism investigation

After a month-long investigation into allegations of sexism and intimidation at Github levied on Twitter by a former employee, GitHub CEO Chris Wanstrath announced on Monday that while it found “no evidence” of gender-based discrimination in its workplace, co-founder Tom Preston-Werner has decided to resign from the company.
Before quitting her position as a designer and front-end developer, Julie Ann Horvath took to Twitter to accuse the company of sexist practices, and she elaborated on that story, without naming names, to TechCrunch. Soon after, Wanstrath announced that the relevant founder was put on leave pending an investigation — who was identified by Valleywag and other outlets as Preston-Werner.
Upon close of the investigation, Wanstrath said that the company found no “legal wrongdoing” within the company, but the investigator found “evidence of mistakes and errors of judgment.” Without elaborating, Wanstrath confirmed that Preston-Werner would resign and the company would make changes to its workplace policies:

We are implementing a number of new HR and employee-led initiatives as well as training opportunities to make sure employee concerns and conflicts are taken seriously and dealt with appropriately.

Preston-Werner also discussed his resignation on his personal blog, denying that he or his wife Theresa engaged in gender-based harassment:

With every decision I made at GitHub and in every interaction I had with employees, I tried to treat people better than they expected and to resolve conflict with empathy. Despite that, I’ve made mistakes, and I am deeply sorry to anyone who was hurt by those mistakes. It devastates me to know that I missed the mark, and I will strive to do better, every day.

Horvath, who now works for Andyet, discussed her experience working for Github onstage last week at the re:build Conference in Indianapolis.