Cisco is a likely candidate in the tech world. If you think $9.11 billion is a lot you need to remember that Yahoo spent $5.7 billion to buy a domain name (broadcast.com).
Cisco is particularly interesting because most Cisco acquisitions are of companies founded by or early-staffed-by former Cisco people -- an exec or top techie leaves to start a company (perhaps built around a tech explored while at Cisco), and if it's successful, Cisco buys the company and gets the team back.
Cisco shareholders have explained that this effectively amounts to $50-500mm bonuses for people who would otherwise have remained employees, and the whole structure is self-reinforcing.
