On May 1, 2019, pursuant to the terms of the Merger Agreement, ATBancorp merged with and into MidWestOne Financial Group, Inc., with the company continuing as the surviving entity in the Merger. Immediately after the Merger, ATBancorp's wholly owned bank subsidiaries, American Trust & Savings Bank (ATSB) and American Bank & Trust Wisconsin, each merged with and into the company's wholly owned bank subsidiary, MidWestOne Bank (the Bank Merger"), with MidWestOne Bank as the surviving entity in the Bank Merger. Under the terms of the Merger Agreement, at the effective time of the Merger (the Effective Time") each share of common stock, no par value per share (except for shares that were owned directly by the Company or ATBancorp, subject to certain customary exceptions, which were canceled in the Merger, and dissenters' shares) of ATBancorp converted into the right to receive $992.51 and 117.5500 shares of common stock, $1.00 par value per share, of the company. Immediately following the Effective Time, Douglas H. Greeff and Richard J. Hartig were appointed to the Board of Directors of the company. Mr. Greeff was appointed as a Class I director for a term expiring at the 2020 annual meeting of the company's shareholders. Mr. Hartig was appointed as a Class II director for a term expiring at the 2021 annual meeting of the company's shareholders.