tippee
noun[C]
FINANCE,LAWuk/tɪˈpiː/usapersonwhoadvisesotherstobuyorsellsharesof aparticularcompanyafter havingreceivedinformation, oftenillegally, from someoneinvolvedwith thecompany:
TheCommissionchargedthat he was a "tippee" of theinsider, and inturntippedhisclients.