Cigna shares jump on reports of abandoned Humana buyout, plans for $10 billion stock buyback
[ad_1] Sopa Images | Lightrocket | Getty Images Shares of Cigna jumped Monday following reports that the health-care giant has scrapped its plans to buy rival Humana due to disagreements on price, putting an early end to what would have been one of the largest deals of the decade. Cigna late Sunday also announced plans…