A device by which commodities emerging in single file from a supply unit are formed into groups and transferred to a wrapping machine includes feed belts, by which the single commodities are directed from the supply unit to a transfer station, a traversing system by which rows of the commodities are diverted repeatedly from the single file at right angles to the initial feed direction, a conveyor belt moving in a direction parallel to that of the single file and by which the formed groups are transferred toward the wrapping machine, and a plurality of bays provided by the conveyor belt. Each bay is designed to accommodate a plurality of the rows diverted to accommodate a plurality of the rows diverted in succession from the single file of commodities and making up one group.