After a judge sided with the Department of Justice in blocking Aetna's (AET) buyout of Humana (HUM), Leerink analyst Ana Gupte believes Humana could become a takeover target. Cigna (CI) is the most likely bidder, followed by Anthem (ANTM), Express Scripts (ESRX) and CVS Health (CVS), Gupte tells investors in a research note. The analyst expects Anthem's buyout of Cigna to also be blocked. After Humana, Gupte sees WellCare (WCG), Molina Healthcare (MOH) and Magellan Health (MGLN) as the most likely publicly traded targets post the deal breaks. She reiterates an Outperform rating on Humana with a standalone price target of $250. The stock is down 97c to $199.56 in afternoon trading.