Well, it was not meant to. The posting read in part "Cognos itself was not small either."
Cognos had around 4,000 employees worldwide. For a software company, it was not small to me at least. ;-) By the way, IBM paid $5.2 billion in cash, I believe.
"Cognos, an IBM company, is the world leader in business intelligence (BI) and performance management solutions. We provide world-class enterprise BI, planning and consolidation software and services to help companies plan, understand and manage financial and operational performance.
Cognos brings together technology, analytical applications, best practices, and a broad network of partners to give our customers a complete performance solution. We provide an open and adaptive solution that leverages an organization's ERP, packaged applications, and database investments."