BRIEF-Omega Advisors takes share stake in Aetna, dissolves stake in Allergan By: Reuters: Company News November 14, 2017 at 11:29 AM EST * Cuts share stake in AIG to 841,740 shares from 1.3 million shares Read More >> Related Stocks: AMC Networks Cl A Aetna Allergan Plc American International Group Expedia Lowe's Companies