Marissa is the 7th ever Yahoo CEO, not the fifth CEO in a one year window. There was a lot of turnover in the 2011-2012 period, but it's mostly down to Yahoo, and also eBay, failing to do their due diligence with Scott Thompson.

  1. 1995 - 2001: Tim Koogle
  2. 2001 - 2007: Terry Semel
  3. 2007 - 2008: Jerry Yang
  4. 2009 - 2011: Carol Bartz
  5. 2012 (5mo): Scott Thompson
  6. 2012 (3mo): Ross Levinsohn (interim)
  7. 2012 - now: Marissa Mayer