Humana Inc. is an American Louisville, Kentucky-based for-profit health insurance company. As of 2014 Humana has had over 13 million customers in the U.S., reported a 2013 revenue of US$41.3 billion, and has had over 52,000 employees. In 2013, the company ranked 73 on the Fortune 500 list, which made it the highest ranked (by revenues) company based in Kentucky. It has been the third largest health insurance in the nation.
The U.S. Dept. of Health and Human Services investigated Humana in 2009 for sending flyers to Medicare recipients that the AARP characterized as deceptive. The company's managed care model has also been criticized for ethical lapses and limitations.
The health insurer Aetna said on Friday July 3, 2015 that it had agreed to acquire its smaller rival Humana for $37 billion in cash and stock.