GWB / Great Western Bancorp Inc - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

GWB / Great Western Bancorp Inc / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

SC 13G/A 1 d417477dsc13ga.htm SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 5)* Great Western Bancorp Inc. (Name of Issuer) Common Shares (Title of Class of Securities) 391416104 (CUSIP Number) December 30, 2022 (Date of Event Which Requires Filing of this Statement) Check the appropriate box t

GWB / Great Western Bancorp Inc / Versor Investments LP Passive Investment

SC 13G/A 1 versor-gwb123122a2.htm UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No. 2)* Great Western Bancorp, Inc. (Name of Issuer) Common Stock, $0.01 par value per share (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2022 (Date of Event Which Requires Filing of this Statement) Check

GWB / Great Western Bancorp Inc / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4)* Great Western Bancorp Inc. (Name of Issuer) Common Shares (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 15 CERTIFICATION AND NOTICE OF TERMINATION OF REGISTRATION UNDER SECTION 12(g) OF THE SECURITIES EXCHANGE ACT OF 1934 OR SUSPENSION OF DUTY TO FILE REPORTS UNDER SECTIONS 13 AND 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934. Commission File Number 001-36688 GREAT WESTERN BANCORP, INC. (FIRST INTERSTATE BANCSYSTEM, INC., AS

GWB / Great Western Bancorp Inc / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 8)* Name of issuer: Great Western Bancorp Inc. Title of Class of Securities: Common Stock CUSIP Number: 391416104 Date of Event Which Requires Filing of this Statement: December 31, 2021 Check the appropriate box to designate the rule pursuant to which this Schedule is f

GWB / Great Western Bancorp Inc / Versor Investments LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G/A Under the Securities Exchange Act of 1934 (Amendment No.

GWB / Great Western Bancorp Inc / DIMENSIONAL FUND ADVISORS LP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2 )* Great Western Bancorp Inc (Name of Issuer) Common Stock (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t

GWB / Great Western Bancorp Inc / WELLINGTON MANAGEMENT GROUP LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* Great Western Bancorp, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2021 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t

EX-99.25

NOTIFICATION OF THE REMOVAL FROM LISTING AND REGISTRATION OF THE STATED SECURITIES The New York Stock Exchange hereby notifies the SEC of its intention to remove the entire class of the stated securities from listing and registration on the Exchange at the opening of business on February 14, 2022, pursuant to the provisions of Rule 12d2-2 (a).

As filed with the Securities and Exchange Commission February 1, 2022

As filed with the Securities and Exchange Commission February 1, 2022 Registration No.

Changes in Control of Registrant, Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Material Modification to Rights of Security Holders, Notice of Delisting or Failure to Satisfy a Continued Listing Rule or Standard; Transfer of Listing, Financial Statements and Exhibits, Completion of Acquisition or Disposition of Assets

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 1, 2022 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction (Commission (I.R.S. Empl

As filed with the Securities and Exchange Commission February 1, 2022

As filed with the Securities and Exchange Commission February 1, 2022 Registration No.

As filed with the Securities and Exchange Commission February 1, 2022

As filed with the Securities and Exchange Commission February 1, 2022 Registration No.

As filed with the Securities and Exchange Commission February 1, 2022

As filed with the Securities and Exchange Commission February 1, 2022 Registration No.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2022 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Investor Presentation | December 31, 2021 FISCAL YEAR 2022 Q1 KEY RESULTS 2 Asset Quality Improvement Nonperforming assets lower by 12.8% Criticized loans lower by 8.7% Entered into agreement to sell $75.1 million of criticized hotel loans (Jan 2022

Investor Presentation | December 31, 2021 FISCAL YEAR 2022 Q1 KEY RESULTS 2 Asset Quality Improvement Nonperforming assets lower by 12.

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for the Quarter Ending on December 31, 2021 Highlights for the Quarter Ending on December 31, 2021 (all quarterly comparisons in this document refer to the quarter ending on September 30, 2021, except as noted) ?Net income of $39.2 million, or $0.71 per diluted share, down from $51.9 million, or $0.93 per diluted share ?Net interest incom

First Interstate BancSystem and Great Western Bancorp Receive Final Regulatory and Shareholder Approvals to Merge

Exhibit 99.1 Thursday, January, 20, 2022 FOR IMMEDIATE RELEASE First Interstate BancSystem and Great Western Bancorp Receive Final Regulatory and Shareholder Approvals to Merge BILLINGS, MT and SIOUX FALLS, SD?Jan. 20, 2022? First Interstate BancSystem, Inc. (NASDAQ: FIBK) (?FIBK?), parent company of First Interstate Bank, and Great Western Bancorp, Inc. (NYSE: GWB) (?GWB?), parent company of Grea

Financial Statements and Exhibits, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 19, 2022 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction of Incorporation) (Commi

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): January 10, 2022 FIRST INTERSTATE

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 - FORM 8-K - CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): January 10, 2022 - FIRST INTERSTATE BANCSYSTEM, INC. (Exact name of registrant as specified in its charter) - MT 001-34653 81-0331430 (State or other jurisdiction of incorporation

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2022 GREAT WESTERN BA

425 1 brhc10032701form425.htm 425 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2022 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jur

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 10, 2022 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction of Incorporation) (Commi

First Interstate BancSystem Receives Regulatory Approvals from the Federal Reserve System and Montana Division of Banking for Great Western Bancorp Merger

Exhibit 99.1 Thursday, December 22, 2021 First Interstate BancSystem Receives Regulatory Approvals from the Federal Reserve System and Montana Division of Banking for Great Western Bancorp Merger BILLINGS, MT and Sioux Falls, SD?Dec. 22, 2021? First Interstate BancSystem, Inc. (NASDAQ: FIBK) (?FIBK?), parent company of First Interstate Bank, and Great Western Bancorp, Inc. (NYSE: GWB) (?GWB?), par

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 23, 2021 (December 22, 20

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): December 23, 2021 (December 22, 2021) FIRST INTERSTATE BANCSYSTEM, INC. (Exact name of registrant as specified in its charter) MT 001-34653 81-0331430 (State or other jurisdiction of i

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2021 GREAT WESTERN B

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction of Incorporation) (Comm

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 22, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction of Incorporation) (Comm

First Interstate BancSystem Receives Regulatory Approvals from the Federal Reserve System and Montana Division of Banking for Great Western Bancorp Merger

Exhibit 99.1 First Interstate BancSystem Receives Regulatory Approvals from the Federal Reserve System and Montana Division of Banking for Great Western Bancorp Merger BILLINGS, MT and Sioux Falls, SD?Dec. 22, 2021? First Interstate BancSystem, Inc. (NASDAQ: FIBK) (?FIBK?), parent company of First Interstate Bank, and Great Western Bancorp, Inc. (NYSE: GWB) (?GWB?), parent company of Great Western

First Interstate BancSystem Receives Regulatory Approvals from the Federal Reserve System and Montana Division of Banking for Great Western Bancorp Merger

Exhibit 99.1 First Interstate BancSystem Receives Regulatory Approvals from the Federal Reserve System and Montana Division of Banking for Great Western Bancorp Merger BILLINGS, MT and Sioux Falls, SD?Dec. 22, 2021? First Interstate BancSystem, Inc. (NASDAQ: FIBK) (?FIBK?), parent company of First Interstate Bank, and Great Western Bancorp, Inc. (NYSE: GWB) (?GWB?), parent company of Great Western

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

TABLE OF CONTENTS UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant ? Filed by a Party other than the Registrant ?? Check the appropriate box: ?? Preliminary Proxy Statement ?? Confidential, for Use of the Commission Only (as permitted by Rule 14a-6(e)(2)) ? D

GWB / Great Western Bancorp Inc / Versor Investments LP Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, DC 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year ended September 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great Western

SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota Great Western Financial Services, Inc. Nebraska Valley Heights Lincoln LLC Nev

Exhibit 21.1 SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota Great Western Financial Services, Inc. Nebraska Valley Heights Lincoln LLC Nevada Wintergreen Real Estate Holding, LLC Colorado Great Western Investments, Inc. South Dakota Great Western Preferred Capital, Inc. Sout

First Interstate BancSystem, Inc. Reports Third Quarter Earnings

Exhibit 99.1 Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: October 26, 2021 For Immediate Release First Interstate BancSystem, Inc. Reports Third Quarter Earnings Billings, MT - October

Investor Presentation October 2021 Exhibit 99.2 Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great

Investor Presentation October 2021 Exhibit 99.2 Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: October 26, 2021 CAUTIONARY NOTE REGARDING FORWARD-LOOKING STATEMENTS Page 2 This presentat

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Investor Presentation | September 30, 2021 FISCAL YEAR 2021 PROGRESS 2 Asset Quality Improvement Nonperforming assets lower by 41.3% Classified loans down by 21.4% Special mention loans down 31.4% from their peak this year Capital Strength Total capi

Investor Presentation | September 30, 2021 FISCAL YEAR 2021 PROGRESS 2 Asset Quality Improvement Nonperforming assets lower by 41.

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for the Quarter Ending on September 30, 2021 Highlights for the Quarter Ending on September 30, 2021 (all quarterly comparisons in this document refer to the quarter ending on June 30, 2021, except as noted) ?Net income of $51.9 million, or $0.93 per diluted share, down from $58.7 million, or $1.06 per diluted share ?Net interest income1

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - October 26, 2021 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.05 per common share will be paid on November 26, 2021, to all stockholders of record as of the close of business on Nove

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 26, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Filed by Great Western Bancorp, Inc.

Filed by Great Western Bancorp, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No.: 001-36688 Date: September 21, 2021 On September 21, 2021, Great Western Bancorp, Inc. (?GWB?) made available on its employee intranet the following communicatio

Filed by First Interstate BancSystem, Inc.

Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 21, 2021 September 20, 2021 A BRIDGE TO THE FUTURE Creating the West?s premier banking franchise. Forward - Looking Statements Sa

We look forward to getting to know the Great Western team!

Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 21, 2021 Great Western Bank and First Interstate Bank are joining forces! Leaders from both organizations are partnering to ensur

Agreement and Plan of Merger, dated as of September 15, 2021, by and between Great Western Bancorp, Inc. and First Interstate BancSystem, Inc.*

Exhibit 2.1 Execution Version AGREEMENT AND PLAN OF MERGER by and between Great Western Bancorp, Inc. and First Interstate BancSystem, Inc. Dated as of September 15, 2021 TABLE OF CONTENTS ARTICLE I THE MERGER 2 1.1 The Merger. 2 1.2 Closing. 2 1.3 Effective Time. 2 1.4 Effects of the Merger. 2 1.5 Conversion of GWB Common Stock. 2 1.6 FIBK Stock. 3 1.7 Treatment of GWB Equity Awards. 4 1.8 Certif

Stockholders’ Agreement, dated as of September 15, 2021, by and between the individuals and entities listed therein and First Interstate BancSystem, Inc.

Exhibit 10.2 EXECUTION VERSION STOCKHOLDERS? AGREEMENT This STOCKHOLDERS? AGREEMENT, dated as of September 15, 2021 (this ?Agreement?) and, except as otherwise set forth in Section 5.1, effective as of the Closing (the ?Effective Time?), is by and between those individuals and entities listed on Exhibit A attached hereto (collectively referred to as the ?Stockholders? and each, a ?Stockholder?) an

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 17, 2021 Welcome Message Video Transcript AUDIO VISUAL (MARK) Hello! I?m pleased to be here today with Kevin Riley, President and

SUPPORT AGREEMENT

Exhibit 10.1 SUPPORT AGREEMENT This Support Agreement (this ?Agreement?), dated as of September 15, 2021, is entered into by and among each of the undersigned shareholders (each, a ?Shareholder?, and collectively, the ?Shareholders?) of First Interstate BancSystem, Inc., a Montana corporation (?FIBK?). The obligations of each Shareholder hereunder shall be several and not joint. WHEREAS, certain S

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): September 20, 2021 (September 15,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington D.C. 20549 - FORM 8-K - CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): September 20, 2021 (September 15, 2021) - FIRST INTERSTATE BANCSYSTEM, INC. (Exact name of registrant as specified in its charter) - MT 001-34653 81-0331430 (State or other jurisdi

Entry into a Material Definitive Agreement, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2021 (September 15, 2021) GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction (

Letter Agreement, dated as of September 15, 2021, between First Interstate BancSystem, Inc. and the shareholders listed therein.

Exhibit 10.3 EXECUTION VERSION LETTER AGREEMENT September 15, 2021 Scott Family Services, Inc. 401 N. 31st Street, STE 700 Billings, MT 59101 Attn: Mr. Timothy Leuthold, President Scott Family FIBK Shareholder Group c/o: Scott Family Services, Inc. Attn: James R. Scott, Chair Gentlemen: Reference is made to (i) the Agreement and Plan of Merger, dated September 15, 2021 (as the same may be amended

Agreement and Plan of Merger, dated as of September 15, 2021, by and between Great Western Bancorp, Inc. and First Interstate BancSystem, Inc. (incorporated by reference to Exhibit 2.1 to Great Western’s Current Report on Form 8-K, filed with the SEC on September 20, 2021).

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER by and between GREAT WESTERN BANCORP, INC. and FIRST INTERSTATE BANCSYSTEM, INC. Dated as of September 15, 2021 TABLE OF CONTENTS ARTICLE I THE MERGER 2 1.1 The Merger. 2 1.2 Closing. 2 1.3 Effective Time. 2 1.4 Effects of the Merger. 2 1.5 Conversion of GWB Common Stock. 2 1.6 FIBK Stock. 3 1.7 Treatment of GWB Equity Awards. 4 1.8 Certificate of Incorpora

Support Agreement, dated as of September 15, 2021, by and among each of the shareholders of First Interstate BancSystem, Inc. listed therein.

Exhibit 10.1 EXECUTION VERSION SUPPORT AGREEMENT This Support Agreement (this ?Agreement?), dated as of September 15, 2021, is entered into by and among each of the undersigned shareholders (each, a ?Shareholder?, and collectively, the ?Shareholders?) of First Interstate BancSystem, Inc., a Montana corporation (?FIBK?). The obligations of each Shareholder hereunder shall be several and not joint.

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 20, 2021 (September 15,

false000161366500016136652021-09-152021-09-15 UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.

"First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces" Event Trascript

Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 17, 2021 "First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces" Event Trascript First Interstate Banc

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Filed by Great Western Bancorp, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No.: 001-36688 Date: September 17, 2021 The following communication was made available by Great Western Bancorp, Inc. (?GWB?) on GWB?s website on September 17, 2021

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 17, 2021 Riley Report Sept 2021 Video Transcript AUDIO VISUAL (KEVIN) Hello, team! Welcome to this special edition of the ?Riley

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 Dear Analysts, We are excited to share with you that today, First Interstate BancSystem, Inc. (NASDAQ: FIBK) announced t

First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces Agreement Will Expand First Interstate’s Footprint Into 8 New States, Creating the West’s Premier Banking Franchise

Exhibit 99.1 Thursday, September 16, 2021 FOR RELEASE AT 6:30 a.m. ET First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces Agreement Will Expand First Interstate?s Footprint Into 8 New States, Creating the West?s Premier Banking Franchise BILLINGS, MT and Sioux Falls, SD?Sept. 16, 2021? First Interstate BancSystem, Inc. (NASDAQ: FIBK) (?FIBK?), parent company of First I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): September 16, 2021 (September 15,

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of report (date of earliest event reported): September 16, 2021 (September 15, 2021) FIRST INTERSTATE BANCSYSTEM, INC. (Exact Name of Registrant as Specified in its Charter) Montana 001-34653 81-0331430 (State or other jurisdict

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Filed by Great Western Bancorp, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No.: 001-36688 Date: September 16, 2021 The following communications were made available on September 16, 2021 by Great Western Bancorp, Inc. (?GWB?) in connection w

A BRIDGE TO THE FUTURE Creating the West’s premier banking franchise. + September 16, 2021

Exhibit 99.2 A BRIDGE TO THE FUTURE Creating the West?s premier banking franchise. + September 16, 2021 Forward - Looking Statements Safe Harbor This presentation contains ?forward - looking statements? within the meaning of Section 27 A of the Securities Act of 1933 , as amended, and Rule 175 promulgated thereunder, and Section 21 E of the Securities Exchange Act of 1934 , as amended, and Rule 3

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Filed by Great Western Bancorp, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No.: 001-36688 Date: September 16, 2021 The following communications were made available on Facebook, Twitter and LinkedIn on September 16, 2021 by Great Western Ban

Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 16, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction of Incorporation) (Com

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 It?s a historic and exciting day for First Interstate! Today, we announced we will join forces with Great Western Bank (

First Interstate Bank and Great Western Bank to Join Forces Agreement Will Expand First Interstate’s Footprint Into 8 New States, Creating the West’s Premier Banking Franchise

Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 Media Contact: Rob Bitter [email protected] 914-471-5615 Thursday, September 16, 2021 FOR IMMEDIATE RELEASE: 6

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 Cautionary Note Regarding Forward Looking Statements This communication contains ?forward-looking statements? within the

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 Website Article Growing the First Interstate Family Date: Thursday, September 16, 2021 It?s a historic and exciting day

EX-99.2

Exhibit 99.2

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 Overview: Q: What is happening? A: On September 15, 2021, First Interstate signed an agreement to partner with Great Wes

EX-99.2

Exhibit 99.2

First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces Agreement Will Expand First Interstate’s Footprint Into 8 New States, Creating the West’s Premier Banking Franchise

Exhibit 99.1 Thursday, September 16, 2021 FOR RELEASE AT 6:30 a.m. ET First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces Agreement Will Expand First Interstate?s Footprint Into 8 New States, Creating the West?s Premier Banking Franchise BILLINGS, MT and Sioux Falls, SD?Sept. 16, 2021? First Interstate BancSystem, Inc. (NASDAQ: FIBK) (?FIBK?), parent company of First I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 16, 2021 GREAT WESTERN

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 16, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in its Charter) Delaware 001-36688 47-1308512 (State or Other Jurisdiction of Incorporation) (Com

First Interstate Bank and Great Western Bank to Join Forces Agreement Will Expand First Interstate’s Footprint Into 8 New States, Creating the West’s Premier Banking Franchise

Filed by Great Western Bancorp, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No.: 001-36688 Date: September 16, 2021 Media Contact: Rob Bitter [email protected] 914-471-5615 Thursday, September 16, 2021 FOR IMMEDIATE RELEASE: 6:30 a

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Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 To: All FIB Employees From: Kevin Riley, President and CEO Date: Thursday, September 16, 2021 Subject Line: Message from

2

Filed by First Interstate BancSystem, Inc. pursuant to Rule 425 under the Securities Act of 1933 and deemed filed pursuant to Rule 14a-12 under the Securities Exchange Act of 1934 Subject Company: Great Western Bancorp, Inc. Commission File No. 001-36688 Date: September 16, 2021 Cautionary Note Regarding Forward Looking Statements This communication contains ?forward-looking statements? within the

First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces Agreement Will Expand First Interstate’s Footprint Into 8 New States, Creating the West’s Premier Banking Franchise

Exhibit 99.1 Thursday, September 16, 2021 FOR RELEASE AT 6:30 a.m. ET First Interstate BancSystem, Inc. and Great Western Bancorp, Inc. to Join Forces Agreement Will Expand First Interstate?s Footprint Into 8 New States, Creating the West?s Premier Banking Franchise BILLINGS, MT and Sioux Falls, SD?Sept. 16, 2021? First Interstate BancSystem, Inc. (NASDAQ: FIBK) (?FIBK?), parent company of First I

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from x to x Commission File Number 001-36688 Great W

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - July 29, 2021 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.05 per common share will be paid on August 27, 2021, to all stockholders of record as of the close of business on August 13

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

1-

Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for Third Quarter Fiscal Year 2021 Highlights for the Third Quarter of Fiscal Year 2021 (all quarterly comparisons in this document refer to the second quarter of fiscal year 2021, except as noted) ?Net income of $58.7 million, or $1.06 per diluted share, up from $51.3 million, or $0.93 per diluted share ?Net interest income1 of $99.1 mil

Investor Presentation | June 30, 2021 KEY DEVELOPMENTS 2 Bolster Credit Risk Management • Nonaccrual loans reduced by $74.4 million or 26% (down 35% YTD) • Criticized loans down $199.2 million, or 17% • Loans on payment deferral down to just $0.2 mil

Investor Presentation | June 30, 2021 KEY DEVELOPMENTS 2 Bolster Credit Risk Management ? Nonaccrual loans reduced by $74.

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2021 OR ? TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from x to x Commission File Number 001-36688 Great

- S-8

As filed with the Securities and Exchange Commission on May 7, 2021. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Great Western Bancorp, Inc. (Exact name of registrant as specified in its charter) Delaware 47-1308512 (State or other jurisdiction of incorporation or organization) (IRS E

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - April 29, 2021 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.01 per common share will be paid on May 28, 2021, to all stockholders of record as of the close of business on May 14, 202

Investor Presentation | March 31, 2021 KEY DEVELOPMENTS 2 Bolster Credit Risk Management • Nonaccrual and classified loans reduced further • Loans on deferral decreased to 0.24% of total loans excluding PPP loans • Ag industry outlook is favorable ac

Investor Presentation | March 31, 2021 KEY DEVELOPMENTS 2 Bolster Credit Risk Management ? Nonaccrual and classified loans reduced further ? Loans on deferral decreased to 0.

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for Second Quarter Fiscal Year 2021 Highlights for the Second Quarter of Fiscal Year 2021 (all quarterly comparisons in this document refer to the first quarter of fiscal year 2021, except as noted) ?Net income of $51.3 million, or $0.93 per diluted share, up from $41.3 million, or $0.75 per diluted share ?Net interest income1 of $104.4 m

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 29, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

SCHEDULE 13G

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1 )* Great Western Bancorp Inc (Name of Issuer) Common Stock (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which t

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Great Western Bancorp Inc. (Name of Issuer) Common Shares (Title of Class of Securities) (CUSIP Number)

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3)* Great Western Bancorp Inc. (Name of Issuer) Common Shares (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2020 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 10, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Comm

Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 9, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)*

SC 13G/A 1 tv0988-greatwesternbancorpin.htm SCHEDULE 13G/A SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 7)* Name of issuer: Great Western Bancorp Inc. Title of Class of Securities: Common Stock CUSIP Number: 391416104 Date of Event Which Requires Filing of this Statement: December 31, 2020 Check the appropriate box

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from x to x Commission File Number 001-36688 Gre

EX-99.3

EX-99.3 4 ipdeck20201231.htm EX-99.3

Earnings Release | December 31, 2020 KEY DEVELOPMENTS 2 Bolster Credit Risk Management • Nonaccrual loans decreased by 10% and classified loans decreased by 7% • Sales of $209 million of hotel loans to reduce risk • Loans on deferral decreased to 1.2

erdeck20201231 Earnings Release | December 31, 2020 KEY DEVELOPMENTS 2 Bolster Credit Risk Management • Nonaccrual loans decreased by 10% and classified loans decreased by 7% • Sales of $209 million of hotel loans to reduce risk • Loans on deferral decreased to 1.

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - January 27, 2021 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.01 per common share will be paid on February 26, 2021, to all stockholders of record as of the close of business on Febr

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for First Quarter Fiscal Year 2021 Highlights for the First Quarter of Fiscal Year 2021 (all quarterly comparisons in this document refer to the fourth quarter of fiscal year 2020, except as noted) •Net income of $41.3 million, or $0.75 per diluted share, up from $11.1 million, or $0.20 per diluted share •Net interest income1 of $109.5 mi

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 27, 2021 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a‑6(e)(2)) x Definitive Proxy State

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a‑6(e)(2)) o Definitive Proxy State

SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota Great Western Financial Services, Inc. Nebraska Valley Heights Lincoln LLC Nev

Exhibit 21.1 SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota Great Western Financial Services, Inc. Nebraska Valley Heights Lincoln LLC Nevada Wintergreen Real Estate Holding, LLC Colorado Great Western Investments, Inc. South Dakota Great Western Preferred Capital, Inc. Sout

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year ended September 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great Western

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for Fourth Quarter & Full Fiscal Year 2020 Highlights for the Fourth Quarter of Fiscal Year 2020 (all quarterly comparisons in this document refer to the third quarter of fiscal year 2020, except as noted) •Net income of $11.1 million, or $0.20 per diluted share, compared to net income of $5.4 million, or $0.10 per diluted share •Net inte

Quarterly Investor Relations Presentation At and for the twelve months ended months ended September 30, 2020 COMPANYFootprint SNAPSHOT Company Overview - NYSE: GWB 4QFY20 Financial Highlights • Full-service regional commercial bank focused on Total A

ipdeck20200930final Quarterly Investor Relations Presentation At and for the twelve months ended months ended September 30, 2020 COMPANYFootprint SNAPSHOT Company Overview - NYSE: GWB 4QFY20 Financial Highlights • Full-service regional commercial bank focused on Total Assets $12,604 relationship-based business and agribusiness banking Total Loans $10,076 • Headquartered in Sioux Falls, SD with 175 banking branches across nine states: Arizona, Colorado, Iowa, Kansas, Balance Total Deposits $11,009 Minnesota, Missouri, Nebraska, North Dakota and South Sheet Loan / Deposit Ratio 91.

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - October 28, 2020 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.01 per common share will be paid on November 27, 2020, to all stockholders of record as of the close of business on Nove

Other Events - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 28, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Earnings Release | September 30, 2020 KEY DEVELOPMENTS • Third party loan review resulted in minimal, non-material findings Bolster Credit Risk • Loan deferrals at 1.98% of total loans excluding PPP (as Management of 10/22/2020) • Outsourcing on-goin

erdeck20200930final Earnings Release | September 30, 2020 KEY DEVELOPMENTS • Third party loan review resulted in minimal, non-material findings Bolster Credit Risk • Loan deferrals at 1.

EX-10.1

bassagreement20201020

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits - 8-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 20, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for Third Quarter Fiscal Year 2020 Highlights for the Third Quarter of Fiscal Year 2020 (all quarterly comparisons in this document refer to the second quarter of fiscal year 2020, except as noted) •Net income of $5.4 million, or $0.10 per diluted share, compared to net loss of $740.6 million, or $13.25 per diluted share •Capital ratios r

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 29, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from x to x Commission File Number 001-36688 Great W

Earnings Release | June 30, 2020 COVID-19 RESPONSE UPDATE Employees, Operations and Community • Maintaining a remote-work structure and emphasis to help • PTO cash out option provided to all employees avoid virus spread at the work place and provide

erdeck20200630 Earnings Release | June 30, 2020 COVID-19 RESPONSE UPDATE Employees, Operations and Community • Maintaining a remote-work structure and emphasis to help • PTO cash out option provided to all employees avoid virus spread at the work place and provide flexibility at • 7 branches remain closed, 140 have opened their lobbies and home the remainder are open on a limited basis ◦ Remote ac

Quarterly Investor Relations Presentation At and for the three and nine months ended June 30, 2020 COMPANYFootprint SNAPSHOT Company Overview - NYSE: GWB 3QFY20 Financial Highlights • Full-service regional commercial bank focused on Total Assets $12,

ipdeck20200630 Quarterly Investor Relations Presentation At and for the three and nine months ended June 30, 2020 COMPANYFootprint SNAPSHOT Company Overview - NYSE: GWB 3QFY20 Financial Highlights • Full-service regional commercial bank focused on Total Assets $12,934 relationship-based business and agribusiness banking Total Loans $10,314 • Headquartered in Sioux Falls, SD with 175 banking branches across nine states: Arizona, Colorado, Iowa, Kansas, Balance Total Deposits $11,151 Sheet Minnesota, Missouri, Nebraska, North Dakota and South Loan / Deposit Ratio 92.

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - July 29, 2020 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.01 per common share will be paid on August 27, 2020, to all stockholders of record as of the close of business on August 13

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): June 10, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

Exhibit 10.1 AMENDED AND RESTATED CEO TRANSITION AND RETIREMENT AGREEMENT THIS AMENDED AND RESTATED CEO TRANSITION AND RETIREMENT AGREEMENT (“Agreement”) is entered into by Kenneth Karels (“Karels”) and Great Western Bancorp, Inc., and Great Western

amendedandrestatedceotra Exhibit 10.1 AMENDED AND RESTATED CEO TRANSITION AND RETIREMENT AGREEMENT THIS AMENDED AND RESTATED CEO TRANSITION AND RETIREMENT AGREEMENT (“Agreement”) is entered into by Kenneth Karels (“Karels”) and Great Western Bancorp, Inc., and Great Western Bank for and on behalf of themselves and their predecessors, successors, assigns, parents, subsidiaries, branches, affiliated

SUBJECT TO COMPLETION PRELIMINARY PROSPECTUS SUPPLEMENT DATED JUNE 1, 2020

Filed Pursuant to Rule 424(b)(5) Registration No. 333-238843 The information in this preliminary prospectus supplement is not complete and may be changed. A registration statement relating to these securities has become effective by rule of the Securities and Exchange Commission. This preliminary prospectus supplement and the accompanying prospectus are not an offer to sell these securities, and w

GREAT WESTERN BANCORP, INC. Dated as of [_], 2020 SENIOR DEBT SECURITIES

Exhibit 4.1 GREAT WESTERN BANCORP, INC. Issuer And [TRUSTEE] Trustee INDENTURE Dated as of [], 2020 SENIOR DEBT SECURITIES CROSS-REFERENCE TABLE CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318, INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section Indenture Section §310(a)(1) 609 (a)(2) 609 (a)(3) Not Applicable (a)(4) Not Applicable (a)(5) 609 (b) 608;

- S-3ASR

As filed with the Securities and Exchange Commission on June 1, 2020. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Great Western Bancorp, Inc. (Exact name of registrant as specified in its charter) Delaware 47-1308512 (State or other jurisdiction of incorporation or organization) (IRS

GREAT WESTERN BANCORP, INC. U.S. BANK NATIONAL ASSOCIATION Dated as of [ ] SUBORDINATED DEBT SECURITIES

Exhibit 4.3 GREAT WESTERN BANCORP, INC. Issuer And U.S. BANK NATIONAL ASSOCIATION Trustee INDENTURE Dated as of [ ] SUBORDINATED DEBT SECURITIES CROSS-REFERENCE TABLE CERTAIN SECTIONS OF THIS INDENTURE RELATING TO SECTIONS 310 THROUGH 318, INCLUSIVE, OF THE TRUST INDENTURE ACT OF 1939 Trust Indenture Act Section Indenture Section §310(a)(1) 609 (a)(2) 609 (a)(3) Not Applicable (a)(4) Not Applicabl

Exhibit 25.2 _____________________________________________________________________________ SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 __________________________ FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF

ex252t-1usbanknationalas Exhibit 25.2 SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM T-1 STATEMENT OF ELIGIBILITY UNDER THE TRUST INDENTURE ACT OF 1939 OF A CORPORATION DESIGNATED TO ACT AS TRUSTEE Check if an Application to Determine Eligibility of a Trustee Pursuant to Section 305(b)(2) U.S. BANK NATIONAL ASSOCIATION (Exact name of Trustee as specified in its charter) 31-0841368

FiledFiled Pursuant to Rule 433 Issuer Free Writing Prospectus, dated June 1, 2020 Supplementing the Preliminary Prospectus Supplement, dated June 1, 2020 Registration No. 333-238843 Subordinated Notes Offering Investor Presentation June 2020 Disclos

gwb-subnotesipxjune2020x FiledFiled Pursuant to Rule 433 Issuer Free Writing Prospectus, dated June 1, 2020 Supplementing the Preliminary Prospectus Supplement, dated June 1, 2020 Registration No.

Regulation FD Disclosure, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 20, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissio

Investor Presentation May 2020 Disclosures Forward-Looking Statements: This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995. Statements about Great Western Bancorp, Inc.’s ex

gwb-fixedincomeipxmay202 Investor Presentation May 2020 Disclosures Forward-Looking Statements: This presentation contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995.

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2020 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from x to x Commission File Number 001-36688 Great

Earnings Release | March 31, 2020 COVID-19 PANDEMIC RESPONSE Customers & Community Employees & Operations • Proactively reaching out to loan and deposit customers • Mobilized remote access to approximately 850 team through segment reviews continuousl

erdeck20200331v2 Earnings Release | March 31, 2020 COVID-19 PANDEMIC RESPONSE Customers & Community Employees & Operations • Proactively reaching out to loan and deposit customers • Mobilized remote access to approximately 850 team through segment reviews continuously develop members in multiple phases additional customer support options ongoing ◦ Operating with over 750 employees working • Partic

Quarterly Investor Relations Presentation At and for the three and six months ended March 31, 2020 GWB SNAPSHOT Exchange / Ticker • NYSE: GWB Market Cap • 55.0 million shares outstanding / $1.13 billion Ownership • 100% publicly traded Total Assets •

ipdeck20200331v2 Quarterly Investor Relations Presentation At and for the three and six months ended March 31, 2020 GWB SNAPSHOT Exchange / Ticker • NYSE: GWB Market Cap • 55.

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - April 30, 2020 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. With the many uncertainties of the COVID-19 pandemic, including the full impacts on the future financial results and operations of the Company, the Board

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings for Second Quarter Fiscal Year 2020 Highlights for the Second Quarter of Fiscal Year 2020 (all quarterly comparisons in this document refer to the first quarter of fiscal year 2020, except as noted) •Net loss of $740.6 million, or $(13.25) per diluted share, compared to net income of $43.3 million, or $0.77 per diluted share •Adjusted net

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 30, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 24, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2020 GREAT WESTERN BANC

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 20, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

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Great Western Bancorp, Inc. Announces Appointment of New CCO

Great Western Bancorp, Inc. Announces Appointment of New CCO Sioux Falls, SD - April 22, 2020 - Great Western Bancorp, Inc. (NYSE: GWB), the parent company of Great Western Bank (www.greatwesternbank.com), announced today that Mr. Stephen W. Yose has been appointed as the organization’s Executive Vice President and Chief Credit Officer. Mr. Yose will commence his employment on or before May 13, 20

GWB / Great Western Bancorp, Inc. / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 2)* Great Western Bancorp Inc. (Name of Issuer) Common Shares (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant

GWB / Great Western Bancorp, Inc. / DIMENSIONAL FUND ADVISORS LP - SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. )* GREAT WESTERN BANCORP INC (Name of Issuer) Common Stock (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which thi

GWB / Great Western Bancorp, Inc. / VANGUARD GROUP INC - SCHEDULE 13G/A Passive Investment

SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 6)* Name of issuer: Great Western Bancorp Inc Title of Class of Securities: Common Stock CUSIP Number: 391416104 Date of Event Which Requires Filing of this Statement: December 31, 2019 Check the appropriate box to designate the rule pursuant to which this Schedule is fi

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Great Western Bancorp, Inc. Announces Appointment of New CEO

Great Western Bancorp, Inc. Announces Appointment of New CEO Sioux Falls, SD - February 11, 2020 - Great Western Bancorp, Inc. (NYSE: GWB) , the parent company of Great Western Bank (www.greatwesternbank.com), announced today that as part of its succession planning, the Company’s Board of Directors has appointed Mr. Mark Borrecco as the organization’s President and Chief Executive Officer effectiv

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 6, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 4, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from x to x Commission File Number 001-36688 Gre

GWB / Great Western Bancorp, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 4 )* Great Western Bancorp, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2019 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 28, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

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Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings of $43.3 Million for First Quarter Fiscal Year 2020 and Dividends of $0.30 Per Share Highlights for the First Quarter of Fiscal Year 2020 (all quarterly comparisons in this document refer to the fourth quarter of fiscal year 2019, except as noted) •Net income was $43.3 million, or $0.77 per diluted share, compared to $50.3 million, or $0.

Quarterly Investor Relations Presentation At and for the three months ended December 31, 2019 ABOUT GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% 3 business and agribusiness banking $2.90

ipdeck20191231final Quarterly Investor Relations Presentation At and for the three months ended December 31, 2019 ABOUT GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% 3 business and agribusiness banking $2.

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 28, 2020 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - January 28, 2020 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.30 per common share will be paid on February 26, 2020, to all stockholders of record as of the close of business on Febr

Earnings Release | December 31, 2019 ABOUT GWB Company Snapshot EPS Performance CAGR EPS 10% 3 • Full-service regional bank focused on relationship-based $2.90 $2.92 business and agribusiness banking $2.46 • 175 banking branches across nine states: A

erdeck20191231final Earnings Release | December 31, 2019 ABOUT GWB Company Snapshot EPS Performance CAGR EPS 10% 3 • Full-service regional bank focused on relationship-based $2.

GWB / Great Western Bancorp, Inc. DEF 14A - - DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a‑6(e)(2)) x Definitive Proxy State

GWB / Great Western Bancorp, Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a‑6(e)(2)) x Definitive Proxy State

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): December 11, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Comm

DESCRIPTION OF SECURITIES REGISTERED UNDER SECTION 12 OF THE SECURITIES EXCHANGE ACT

Exhibit 4.21 DESCRIPTION OF SECURITIES REGISTERED UNDER SECTION 12 OF THE SECURITIES EXCHANGE ACT As of September 30, 2019, Great Western Bancorp, Inc. (“we,” “our” or “Company”) has only one class of securities registered under the Securities Exchange Act of 1934, as amended, consisting of our common stock, par value $0.01 per share (“Common Stock”). The following description of our Common Stock

SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota Great Western Financial Services, Inc. Nebraska Valley Heights Lincoln LLC Nev

Exhibit 21.1 SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota Great Western Financial Services, Inc. Nebraska Valley Heights Lincoln LLC Nevada Wintergreen Real Estate Holding, LLC Colorado Great Western Investments, Inc. South Dakota Great Western Preferred Capital, Inc. Sout

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-K (Mark One) ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year ended September 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great Western

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 26, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Comm

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Great Western Bancorp, Inc. Announces Ken Karels Retirement

Great Western Bancorp, Inc. Announces Ken Karels Retirement Sioux Falls, SD - November 26, 2019 - Great Western Bancorp, Inc. (NYSE: GWB), the parent company of Great Western Bank (www.greatwesternbank.com), announced today that as part of its succession planning, Kenneth J. Karels, Chairperson, President and CEO of Great Western Bancorp, Inc., and Great Western Bank (together, “Great Western”) pl

EX-10.1

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Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 31, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 30, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Quarterly Investor Relations Presentation At and for the three and twelve months ended September 30, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based 4 $2.90 $2.92 business and agribusiness ba

ipdeck20190930 Quarterly Investor Relations Presentation At and for the three and twelve months ended September 30, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based 4 $2.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

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Exhibit 99.1 ` Great Western Bancorp, Inc. Announces Fourth Quarter and Fiscal Year 2019 Financial Results; 9.4% Increase in Diluted EPS and 10.5% Increase in TBV1 for Fiscal Year 2019 Highlights for the Fourth Quarter of Fiscal Year 2019 (all quarterly comparisons in this document refer to the third quarter of fiscal year 2019, except as noted) •Net income was $50.3 million, or $0.89 per diluted

Earnings Release | September 30, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% 4 $2.90 $2.92 business and agribusiness banking $0.23 $2.46 • 175 banking branches across nine st

erdeck20190930 Earnings Release | September 30, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% 4 $2.

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 24, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - October 24, 2019 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.30 per common share will be paid on November 29, 2019, to all stockholders of record as of the close of business on Nove

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 1, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commis

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Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 15, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Com

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 3, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Comm

Great Western Bancorp, Inc. Announces Amendment to Stock Repurchase Program

Exhibit 99.1 Great Western Bancorp, Inc. Announces Amendment to Stock Repurchase Program SIOUX FALLS, SD - September 3, 2019 - Great Western Bancorp, Inc. (the “Company”) (NYSE:GWB), the parent company of Great Western Bank (www.greatwesternbank.com), announced today that the Board of Directors has approved an amendment to the stock repurchase program originally approved on October 26, 2016, which

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 9, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

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Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 10-Q (Mark One) ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2019 OR ☐ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great Weste

Quarterly Investor Relations Presentation At and for the three and nine months ended June 30, 2019 About GWB Company Snapshot EPS Performance $2.90 $2.19 • Full-service regional bank focused on relationship-based CAGR EPS 10% $2.04 $0.23 $0.23 busine

ipdeck20190630vfinal Quarterly Investor Relations Presentation At and for the three and nine months ended June 30, 2019 About GWB Company Snapshot EPS Performance $2.

Earnings Release | June 30, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based $2.90 CAGR EPS 10% $2.19 $2.04 business and agribusiness banking $0.23 $0.23 $2.46 $2.67 $2.31 $1.96 • 174 banking

erdeck20190630vfinal Earnings Release | June 30, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based $2.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

For the nine months ended:

Exhibit 99.1 Great Western Bancorp, Inc. Announces Earnings of $26.8 million for Third Quarter Fiscal Year 2019 and Dividends of $0.30 Per Share Highlights for the Third Quarter of Fiscal Year 2019 (all quarterly comparisons in this document refer to the second quarter of fiscal year 2019, except as noted) • Net income was $26.8 million, or $0.47 per diluted share, compared to $44.5 million, or $0

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - July 25, 2019 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.30 per common share will be paid on August 23, 2019, to all stockholders of record as of the close of business on August 9,

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 17, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

Great Western Bancorp, Inc. Announces Select Estimated Financial Results for Third Quarter of Fiscal Year 2019

Great Western Bancorp, Inc. Announces Select Estimated Financial Results for Third Quarter of Fiscal Year 2019 Sioux Falls, SD - July 17, 2019 - Great Western Bancorp, Inc. (NYSE: GWB) today announced an anticipated decline in net income for the third quarter of fiscal year 2019 compared to the second quarter of fiscal year 2019 due primarily to an increase in credit-related charges. Given the Com

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2019 Or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great West

Earnings Release | March 31, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% $2.90 business and agribusiness banking $0.23 $1.57 $2.46 $2.67 $1.41 $2.31 • 174 banking branches ac

erdeck20190331 Earnings Release | March 31, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% $2.

Quarterly Investor Relations Presentation At and for the three and six months ended March 31, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% $2.90 $0.23 business and agribusines

ipdeck20190331 Quarterly Investor Relations Presentation At and for the three and six months ended March 31, 2019 About GWB Company Snapshot EPS Performance • Full-service regional bank focused on relationship-based CAGR EPS 10% $2.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

For the six months ended:

Exhibit 99.1 Great Western Bancorp, Inc. Announces 13% Increase in EPS in Fiscal Year 2019 Second Quarter Financial Results; Raises Dividend Highlights for the Second Quarter of Fiscal Year 2019 (all quarterly comparisons in this document refer to the first quarter of fiscal year 2019, except as noted) • Net income was $44.5 million, or $0.78 per diluted share, compared to $45.8 million, or $0.79

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 25, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

Great Western Bancorp, Inc. Declares Increased Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Increased Quarterly Cash Dividend Sioux Falls, SD - April 25, 2019 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.30 per common share will be paid on May 24, 2019, to all stockholders of record as of the close of business on M

Other Events, Submission of Matters to a Vote of Security Holders

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): February 21, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Comm

GWB / Great Western Bancorp, Inc. / MACQUARIE GROUP LTD - SC 13G/A Passive Investment

SC 13G/A UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 1)* Great Western Bancorp Inc. (Name of Issuer) Common Shares (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant

GWB / Great Western Bancorp, Inc. / Wellington Management Group LLP - SEC SCHEDULE 13G Passive Investment

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 SCHEDULE 13G Under the Securities Exchange Act of 1934 (Amendment No. 3 )* Great Western Bancorp, Inc. (Name of Issuer) Common Stock (Title of Class of Securities) 391416104 (CUSIP Number) December 31, 2018 (Date of Event Which Requires Filing of this Statement) Check the appropriate box to designate the rule pursuant to which

GWB / Great Western Bancorp, Inc. / VANGUARD GROUP INC Passive Investment

greatwesternbancorpinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 5 )* Name of issuer: Great Western Bancorp Inc Title of Class of Securities: Common Stock CUSIP Number: 391416104 Date of Event Which Requires Filing of this Statement: December 31, 2018 Check the app

GWB / Great Western Bancorp, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) x QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended December 31, 2018 Or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great W

Earnings Release | December 31, 2018 About GWB Company Snapshot EPS Performance $2.90 • Full-service regional bank focused on relationship-based CAGR EPS 10% $0.23 business and agribusiness banking $0.79 $2.46 $2.67 $0.72 $2.31 • 173 banking branches

erdeck20181231final Earnings Release | December 31, 2018 About GWB Company Snapshot EPS Performance $2.

For the three months ended:

Exhibit 99.1 Great Western Bancorp, Inc. Announces Fiscal Year 2019 First Quarter Financial Results Highlights for the First Quarter of Fiscal Year 2019 (all quarterly comparisons in this document refer to the fourth quarter of fiscal year 2018, except as noted) • Net income was $45.8 million, or $0.79 per diluted share, compared to $42.3 million, or $0.72 per diluted share • Net interest margin a

Quarterly Investor Relations Presentation At and for the three months ended December 31, 2018 About GWB Company Snapshot EPS Performance $2.90 • Full-service regional bank focused on relationship-based CAGR EPS 10% $0.23 business and agribusiness ban

ipdeck20181231final Quarterly Investor Relations Presentation At and for the three months ended December 31, 2018 About GWB Company Snapshot EPS Performance $2.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 24, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - January 24, 2019 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.25 per common share will be paid on February 22, 2019, to all stockholders of record as of the close of business on Febr

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): January 24, 2019 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

GWB / Great Western Bancorp, Inc. DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a‑6(e)(2)) o Definitive Proxy State

GWB / Great Western Bancorp, Inc. DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 Filed by the Registrant x Filed by a Party other than the Registrant o Check the appropriate box: o Preliminary Proxy Statement o Confidential, for Use of the Commission Only (as permitted by Rule 14a‑6(e)(2)) x Definitive Proxy State

GWB / Great Western Bancorp, Inc. 10-K (Annual Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-K (Mark One) x ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the Fiscal Year Ended September 30, 2018 Or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great Western

SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota TMS Corporation of the Americas Nebraska Great Western Financial Services, Inc

Exhibit 21.1 SUBSIDIARIES OF GREAT WESTERN BANCORP, INC. Name Jurisdiction of Incorporation/Organization Great Western Bank South Dakota Hometown Investment Services, Inc. South Dakota TMS Corporation of the Americas Nebraska Great Western Financial Services, Inc. Nebraska Valley Heights Lincoln LLC Nevada Wintergreen Real Estate Holding, LLC Colorado Great Western Statutory Trust IV Connecticut G

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): November 13, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Comm

EX-10.1

dougbassemploymentagreem

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 29, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Quarterly Investor Relations Presentation At and for the three and twelve months ended September 30, 2018 About GWB Company Snapshot EPS Performance $2.90 • Full-service regional bank focused on relationship-based CAGR EPS 10% $0.23 business and agri

ipdeck20180930final Quarterly Investor Relations Presentation At and for the three and twelve months ended September 30, 2018 About GWB Company Snapshot EPS Performance $2.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Earnings Release | October 25, 2018 About GWB Company Snapshot EPS Performance $2.90 • Full-service regional bank focused on relationship-based CAGR EPS 10% $0.23 business and agribusiness banking $2.46 $2.67 $2.31 • 174 banking branches across nine

erdeck20180930final Earnings Release | October 25, 2018 About GWB Company Snapshot EPS Performance $2.

For the twelve months ended:

Exhibit 99.1 Great Western Bancorp, Inc. Announces Fiscal Year 2018 Fourth Quarter Financial Results; Strong Net Income Growth and Tangible Book Value Per Share1 in Fiscal Year 2018 Highlights for the Fourth Quarter of Fiscal Year 2018 (all quarterly comparisons in this document refer to the third quarter of fiscal year 2018, except as noted) • Net income was $42.3 million, or $0.72 per diluted sh

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): October 25, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commi

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - October 25, 2018 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.25 per common share will be paid on November 21, 2018, to all stockholders of record as of the close of business on Nove

GWB / Great Western Bancorp, Inc. / VANGUARD GROUP INC Passive Investment

greatwesternbancorpinc.htm - Generated by SEC Publisher for SEC Filing SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Schedule 13G Under the Securities Exchange Act of 1934 (Amendment No.: 4 )* Name of issuer: Great Western Bancorp Inc Title of Class of Securities: Common Stock CUSIP Number: 391416104 Date of Event Which Requires Filing of this Statement: September 28, 2018 Check the ap

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): September 14, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Com

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 30, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commis

Great Western Bancorp, Inc. Names Doug Bass President & Chief Operating Officer SIOUX FALLS, SD – August 30, 2018 – Great Western Bancorp, Inc. (NYSE:GWB), the parent company of Great Western Bank (www.greatwesternbank.com), announced today that effe

bassnamedpresidentcoo Great Western Bancorp, Inc. Names Doug Bass President & Chief Operating Officer SIOUX FALLS, SD – August 30, 2018 – Great Western Bancorp, Inc. (NYSE:GWB), the parent company of Great Western Bank (www.greatwesternbank.com), announced today that effective October 1, 2018, Executive Vice President & Regional President Doug Bass will assume the role of President and Chief Opera

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): August 23, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commis

GWB / Great Western Bancorp, Inc. S-8

As filed with the Securities and Exchange Commission on August 8, 2018. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-8 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Great Western Bancorp, Inc. (Exact name of registrant as specified in its charter) Delaware 47-1308512 (State or other jurisdiction of incorporation or organization) (IR

Exhibit 4.23 GREAT WESTERN BANCORP, INC. SUBORDINATED DEBT INDENTURE DATED AS OF _____________ __, 20__ _________________________, AS TRUSTEE Exhibit 4.23 TABLE OF CONTENTS Page Number ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.1

greatwesternbancorpsubno Exhibit 4.23 GREAT WESTERN BANCORP, INC. SUBORDINATED DEBT INDENTURE DATED AS OF , 20 , AS TRUSTEE Exhibit 4.23 TABLE OF CONTENTS Page Number ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.1 Definitions Section 1.2 Other Definitions Section 1.3 Incorporation by Reference of Trust Indenture Act Section 1.4 Rules of Construction ARTICLE II THE SECURITIES Sect

STATEMENT REGARDING COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS

Exhibit 12.1 STATEMENT REGARDING COMPUTATION OF RATIOS OF EARNINGS TO FIXED CHARGES AND PREFERRED STOCK DIVIDENDS For the Nine Months Ended For the Fiscal Years Ended September 30, June 30, 2018 June 30, 2017 2017 2016 2015 2014 2013 (dollars in thousands) EARNINGS Income before income taxes $ 175,357 $ 159,832 $ 214,227 $ 180,116 $ 161,552 $ 159,299 $ 150,141 Fixed charges 50,954 32,121 45,579 33

GWB / Great Western Bancorp, Inc. S-3

As filed with the Securities and Exchange Commission on August 7, 2018. Registration No. 333- UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM S-3 REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933 Great Western Bancorp, Inc. (Exact name of registrant as specified in its charter) Delaware 47-1308512 (State or other jurisdiction of incorporation or organization) (IR

Exhibit 4.22 GREAT WESTERN BANCORP, INC. SENIOR DEBT INDENTURE DATED AS OF ___________ __, 20__ ___________________________, AS TRUSTEE Exhibit 4.22 TABLE OF CONTENTS Page Number ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.1 Defini

greatwesternbancorpsenio Exhibit 4.22 GREAT WESTERN BANCORP, INC. SENIOR DEBT INDENTURE DATED AS OF , 20 , AS TRUSTEE Exhibit 4.22 TABLE OF CONTENTS Page Number ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE Section 1.1 Definitions Section 1.2 Other Definitions Section 1.3 Incorporation by Reference of Trust Indenture Act Section 1.4 Rules of Construction ARTICLE II THE SECURITIES Section 2.

GWB / Great Western Bancorp, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2018 Or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great Weste

For the nine months ended:

Exhibit 99.1 Great Western Bancorp, Inc. Announces Fiscal Year 2018 Third Quarter Financial Results Highlights for the Third Quarter of Fiscal Year 2018 (all comparisons in this document refer to the second quarter of fiscal year 2018, except as noted) • Net income was $45.9 million, or $0.78 per diluted share, for the quarter, compared to net income of $40.5 million, or $0.69 per diluted share •

Quarterly Investor Relations Presentation At and for the three and nine months ended June 30, 2018 About GWB Company Snapshot Exchange / Ticker • NYSE: GWB Market Cap • 58.9 million shares outstanding / $2.52 billion Ownership • 100% publicly traded

ipdeck20180630final Quarterly Investor Relations Presentation At and for the three and nine months ended June 30, 2018 About GWB Company Snapshot Exchange / Ticker • NYSE: GWB Market Cap • 58.

Earnings Release | July 26, 2018 About GWB Company Snapshot EPS Performance $2.19 • Full-service regional bank focused on relationship-based CAGR EPS 10% $2.46 $0.23 $2.31 $1.82 business and agribusiness banking $2.45 $1.96 $1.81 • 173 banking branch

erdeck20180630final Earnings Release | July 26, 2018 About GWB Company Snapshot EPS Performance $2.

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 26, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Quarterly Cash Dividend Sioux Falls, SD - July 26, 2018 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.25 per common share will be paid on August 22, 2018, to all stockholders of record as of the close of business on August 10

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 26, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

EX-10.1

karlynknieriemagreementm

Current Report

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): July 25, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commissi

GWB / Great Western Bancorp, Inc. 10-Q (Quarterly Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 Form 10-Q (Mark One) þ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2018 Or ¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the transition period from to Commission File Number 001-36688 Great West

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): May 1, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commission

For the six months ended:

EX-99.1 2 ex991-earningsxgwbx2018x03.htm EXHIBIT 99.1 Exhibit 99.1 Great Western Bancorp, Inc. Announces Fiscal Year 2018 Second Quarter Financial Results; Raises Dividend Highlights for the Second Quarter of Fiscal Year 2018 (all comparisons in this document refer to the first quarter of fiscal year 2018, except as noted) • Net income and adjusted net income1 were both $40.5 million, or $0.69 per

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 26, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

Quarterly Investor Relations Presentation At and for the three and six months ended March 31, 2018 About GWB 2 Company Snapshot Exchange / Ticker • NYSE: GWB Market Cap • 58.9 million shares outstanding / $2.35 billion Ownership • 100% publicly trade

EX-99.3 4 ex993ipdeck20180331final.htm EXHIBIT 99.3 Quarterly Investor Relations Presentation At and for the three and six months ended March 31, 2018 About GWB 2 Company Snapshot Exchange / Ticker • NYSE: GWB Market Cap • 58.9 million shares outstanding / $2.35 billion Ownership • 100% publicly traded Total Assets • $11.99 billion ROA / ROTCE • 1.40% / 16.2% Efficiency Ratio • 48.6% FTEs • Approx

Earnings Release | April 26, 2018 FY13 FY14 FY15 FY16 FY17 $1.66 $1.81 $1.90 $2.14 $2.45$2.31 $2.46 Net Income ($MM) Adj. Net Income ($MM) (2) Efficiency Ratio (2) About GWB 2 Company Snapshot EPS Performance Strong Earnings Growth and Efficiency Mar

ex992erdeck20180331fin Earnings Release | April 26, 2018 FY13 FY14 FY15 FY16 FY17 $1.

Great Western Bancorp, Inc. Declares Increased Quarterly Cash Dividend

Great Western Bancorp, Inc. Declares Increased Quarterly Cash Dividend Sioux Falls, SD - April 26, 2018 - The Board of Directors of Great Western Bancorp, Inc. (NYSE: GWB) today announced that it has declared a quarterly cash dividend to its stockholders. A quarterly cash dividend of $0.25 per common share will be paid on May 23, 2018, to all stockholders of record as of the close of business on M

Other Events

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): April 26, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

GWB / Great Western Bancorp, Inc. 8-K (Current Report)

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 FORM 8-K CURRENT REPORT Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934 Date of Report (Date of earliest event reported): March 15, 2018 GREAT WESTERN BANCORP, INC. (Exact Name of Registrant as Specified in Its Charter) Delaware (State or Other Jurisdiction of Incorporation) 001-36688 47-1308512 (Commiss

Great Western Bancorp, Inc. Announces Nationwide Search for President Sioux Falls, SD – February 28, 2018 - The Board of Directors of Great Western Bancorp, Inc. (the “Company”) (NYSE: GWB) today announced a nationwide search for a new president as a

EX-99.1 2 a22818gwbkarelspressrele.htm EXHIBIT 99.1 Great Western Bancorp, Inc. Announces Nationwide Search for President Sioux Falls, SD – February 28, 2018 - The Board of Directors of Great Western Bancorp, Inc. (the “Company”) (NYSE: GWB) today announced a nationwide search for a new president as a result of the growth of the Company and its principal banking subsidiary, Great Western Bank (the