Mr. Rattoballi is the sixth person to plead guilty in the case revolving around Grey, which is at the center of an ongoing federal antitrust investigation of bid-rigging, bribery, fraud and tax-related offenses in the advertising, printing and graphic industries.
Mr. Rattoballi pleaded guilty to one count
Mr. Rattoballi also pleaded guilty to one count of conspiracy to commit mail fraud in connection with a scheme to fraudulently inflate invoices to Grey. The inflated invoices would then be passed on to Grey's clients for payment, and to pay kickbacks to Mitchell Mosallem, a former Grey executive vice president and director of graphic services, the government alleged.
Mr. Mosallem and several other defendants were indicted by a grand jury in Manhattan on related charges on Sept. 17.
The bid-rigging charge carries a maximum penalty of three years' imprisonment and a $350,000 fine. The conspiracy charge carries a maximum penalty of five years' imprisonment and a $250,000 fine.