 DUBUQUE, Iowa, Sept. 08, 2021 GLOBE NEWSWIRE -- Heartland Financial USA, Inc. Nasdaq: HTLF announced today the completion of a public offering of 150.0 million in aggregate principal amount of fixed-to-floating rate subordinated notes the notes. The notes are intended to qualify as Tier 2 capital for regulatory purposes. Piper Sandler Co. acted as sole underwriter in the offering. 