Tenure: Four months
It’s a battle between Ron Johnson and Scott Thompson over which quickly ousted CEO is the more infamous.
Yahoo (YHOO) hired Thompson in January 2012, and things began to unravel just a few months later. Dan Loeb, activist investor and CEO of Third Point, sent a letter to the board questioning his resume — and that questioning turned out to be justified.
Thompson falsely listed a computer science degree not just on his resume, but on his online bios — including the one in Yahoo’s SEC filing. By mid-May, he had gotten the boot.
The lying hurt Thompson’s wallet, too, as he was fired without a severance package. Luckily, he kept his $1.5 million bonus along with $5.5 million in restricted stock — and that stock has soared around 80% since he left, under the guidance of current CEO Marissa Mayer.