Citi analysts Yigal Nochomovitz, Liav Abraham and Joel Beatty argue that the break of the Pfizer (PFE), Allergan (AGN) merger could accelerate smaller scale acquisitions in the Biotechnology sector. The implication that larger companies could accelerate M&A activity to bolster pipelines in lieu of the mega-merger pathway aided shares in the sector this week, the analysts contend in a research note. They now believe that Ardelyx (ARDX), Medivation (MDVN), Ophthotech (OPHT), Puma Biotechnology (PBYI), Portola Pharmaceuticals (PTLA), Ultragenyx (RARE), Relypsa (RLYP) and Versartis (VSAR) have a greater probability of being acquired in the next 12-18 months. Beside these favored names for a takeover, analyst Joel Beatty sees a greater chance of Catabasis Pharmaceuticals (CATB), Intercept Pharmaceuticals (ICPT), Novavax (NVAX) and Raptor Pharmaceuticals (RPTP) getting acquired over the next 18 months.