premise: SourceMedia is a mid-sized diversified business-to-business digital media company owned by Observer Capital, which acquired the company from Investcorp in August 2014. Formerly the Thomson Media division of The Thomson Corporation, SourceMedia was spun off and sold by Thomson to Investcorp in 2004 for $350 million.
hypothesis: Investcorp made $350 million on the sale of SourceMedia. 
reason: The text says that Investcorp sold SourceMedia for $350 but it's not said how much Investcorp originally paid so we don't know how much was made on the sale. 