Great Western Bancorp, Inc. Holds Annual Meeting; Elects Three Members to Its Board of Directors

Great Western Bancorp, Inc. (NYSE: GWB) (the "Company”) today announced that its stockholders have elected three nominated individuals to its Board of Directors (the "Board”). The vote was approved at the Company’s annual stockholder meeting on February 22, 2018. The elected directors include James Brannen, Thomas Henning, and Daniel Rykhus. All three nominees will hold office until 2021.

James Brannen is CEO of FBL Financial Group. He joined the Board in October 2015.

Thomas Henning, President & CEO of Assurity Group, Inc., was re-elected to the Board. Henning has been a director since August 2015. He also serves as the Lead Independent Director of the Board.

Daniel Rykhus, President & CEO of Raven Industries, was also re-elected to the Board. Rykhus has been a director since July 2014.

Stockholders approved on a non-binding basis the executive compensation plan. The stockholders also approved an amendment to the Company’s 2014 Omnibus Incentive Plan to increase the number of authorized shares from 813,889 to 1,375,889 and an amendment to the Company’s 2014 Non-Employee Director Plan to increase the number of shares from 83,333 to 121,333.

Stockholders also ratified the appointment of Ernst & Young LLP as the Company’s independent registered public accounting firm for the fiscal year ending September 30, 2018.

About Great Western Bancorp, Inc.

Great Western Bancorp, Inc. is the holding company for Great Western Bank, a full-service regional bank focused on relationship-based business and agribusiness banking. Great Western Bank offers small and mid-sized businesses a focused suite of financial products and a range of deposit and loan products to retail customers through several channels, including the branch network, online banking system, mobile banking applications and customer care centers. The bank services its customers through more than 170 branches in nine states: Arizona, Colorado, Iowa, Kansas, Minnesota, Missouri, Nebraska, North Dakota and South Dakota. To learn more about Great Western Bank visit www.greatwesternbank.com.

Forward Looking Statements

The materials posted may contain forward-looking statements, including guidance, involving significant risks and uncertainties, which will be identified by words such as "believe," "expect," "anticipate," "intend," "estimate," "should," "is likely," "will," "going forward" and other expressions that indicate future events and trends and may be followed by or reference cautionary statements. A number of factors could cause actual results to differ materially from those in the forward-looking information. These factors are outlined in our most recent earnings press release and in more detail in our most current 10-Q and 10-K filings. Great Western Bancorp, Inc. disclaims any obligation to update any of the forward-looking statements that are made from time to time to reflect future events or developments or changes in expectations.

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