UnitedHealth's $4.9 billion acquisition of Brazilian health care company Amil is the second-largest in its history.
Company announced Value
Pacificare Health Systems Inc. 7/6/2005 $7.1 billion
Amil Participacoes SA 10/8/2012 $4.9 billion
Oxford Health Plans LLC 04/26/2004 $4.8 billion
Mid Atlantic Medical Service 10/27/2003 $3.1 billion
Sierra Health Services Inc. 3/12/2007 $2.5 billionSource: Bloomberg News