el upgrades UTHR & downgrades SVNT, Piper assumes AHII (ow) & TOMO (neutral) Key Research: Piper initiates LH/MWIV/INMD (ow's) & DVA/AMSG/WOOF/DGX (neuts) & PETS (uw), UBS downgrades PDCO Key Research: Baird lowers target GPS, DB upgrades CS (buy), Citi upgrades AES (buy), KBW initiates APO/PCBK (op's) Key