ACI WORLDWIDE, INC.

Public companies file this within four business days when something important happens that investors should know about before the next quarterly report.

ACI WORLDWIDE, INC. filed this 8-K to disclose: ) 6060 Coventry Drive Elkhorn , Nebraska 68022 (Address of Principal Executive Offices) (Zip Code) (402) 390-7600 (Registrant’s telephone number, including area code) Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions: ☐ Written communicati…