Michael Pearson, CEO of Valeant Pharmaceuticals.

That's one valuable "boo-boo" this drug company boss might have gotten.

A new report suggests embattled Valeant Pharmaceuticals CEO J. Michael Pearson might have netted a windfall — on paper at least — of more than $27 million after his company delivered to him "in error" the right to receive more than 500,000 shares of stock in 2013.