LOUISVILLE, Ky.--(BUSINESS WIRE)--Humana Inc. (NYSE: HUM) today announced that it has signed a definitive agreement with a consortium of investors to divest all or substantially all of its minority interest in Gentiva, the nation’s leading provider of end-of-life services, including hospice and palliative care. The agreement values Humana’s minority interest stake at approximately $900 million. Other financial terms were not disclosed. Humana intends to utilize proceeds from the sale for genera