Abstract: The present invention relates to a device for transferring inside bags quantities of product shaped and dosed in a cake-forming machine for tuna fish and similar. Said device comprises a container (1) provided with at least one internal cylindrical cavity (2) having an axis parallel to that of the container (1) that can be closed at the bottom by a shutter (3), as well as an above standing pusher (5) provided with at least one piston (6) having a cylindrical head (7) with diameter slightly lower than that of the cavity (2) of container (1), said piston being suitable for going through said cavity (2) and pushing the content thereof downwards until it is emptied.