Humana, Aetna shares fall sharply on new antitrust concerns

Shares of Aetna and Humana plummeted late Monday afternoon after a trade publication said the companies’ proposal to sell some of their assets are unlikely to satisfy antitrust regulators’ concerns about their merger’s impact on competition. Humana’s shares fell nearly $9, or about 5.4 percent, in less than 10 minutes of trading this afternoon. They also […]