MOFG / MidWestOne Financial Group, Inc. - Pengajuan SECLaporan Tahunan, Pernyataan Proksi

MidWestOne Financial Group, Inc.
US ˙ NasdaqGS ˙ US5985111039

Mga Batayang Estadistika
CIK 1412665
SEC Filings
All companies that sell securities in the United States must register with the Securities and Exchange Commission (SEC) and file reports on a regular basis. These reports include company annual reports (10K, 10Q), news updates (8K), investor presentations (found in 8Ks), insider trades (form 4), ownership reports (13D, and 13G), and reports related to the specific securities sold, such as registration statements and prospectus. This page shows recent SEC filings related to MidWestOne Financial Group, Inc.
SEC Filings (Chronological Order)
Halaman ini menyediakan daftar lengkap dan kronologis dari Pengajuan SEC, tidak termasuk pengajuan kepemilikan yang kami sediakan di tempat lain.
August 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2025 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 001-35968 MIDWESTONE FINANCIAL G

July 31, 2025 EX-10.1

AMENDED AND RESTATED CREDIT AGREEMENT by and between MIDWESTONE FINANCIAL GROUP, INC. (the “Borrower”) U.S. BANK NATIONAL ASSOCIATION (the “Bank”) Dated as of July 29, 2025 Table of Contents

Execution Version AMENDED AND RESTATED CREDIT AGREEMENT by and between MIDWESTONE FINANCIAL GROUP, INC.

July 31, 2025 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) July 29, 2025 MidWestOne Financial

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, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 25, 2025 EX-99.1

Investor Presentation June 30, 2025 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Dubuque, Iowa Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forwar

Investor Presentation June 30, 2025 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Dubuque, Iowa Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

July 25, 2025 8-K

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) July 25, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 24, 2025 EX-3.1

THIRD AMENDED AND RESTATED BYLAWS, AS AMENDED MIDWESTONE FINANCIAL GROUP, INC. ARTICLE I.

Amended on July 22, 2025 THIRD AMENDED AND RESTATED BYLAWS, AS AMENDED OF MIDWESTONE FINANCIAL GROUP, INC.

July 24, 2025 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2025

FOR IMMEDIATE RELEASE July 24, 2025 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2025 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) ("we," "our," or the "Company") today reported results for the second quarter of 2025. Second Quarter 2025 Summary1 •Pre-tax, pre-provision net revenue increased 15% to $24.5 million2. ◦Net interest margin (t

July 24, 2025 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) July 22, 2025 MidWestOne Financial

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 22, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 24, 2025 EX-99.2

Second Quarter 2025 Earnings Conference Call July 25, 2025 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Ac

ex992q22025earningsrelea Second Quarter 2025 Earnings Conference Call July 25, 2025 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

July 11, 2025 EX-99.1

MidWestOne Financial Group, Inc. Announces Second Quarter 2025 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces Second Quarter 2025 Earnings Conference Call IOWA CITY, IOWA – JULY 11, 2025 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its second quarter 2025 financial results will be released after market closes on Thursday, July 24, 2025. The Company will host a conference

July 11, 2025 8-K

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) July 11, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

May 6, 2025 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2025 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 001-35968 MIDWESTONE FINANCIAL

April 28, 2025 EX-99.1

Investor Presentation March 31, 2025 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Dubuque, Iowa Iowa City, Iowa Dubuque, IowaDenver, Colorado Minneapolis, Minnesota 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forwar

Investor Presentation March 31, 2025 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Dubuque, Iowa Iowa City, Iowa Dubuque, IowaDenver, Colorado Minneapolis, Minnesota 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

April 28, 2025 8-K

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) April 28, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 24, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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) April 22, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 24, 2025 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2025

FOR IMMEDIATE RELEASE April 24, 2025 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2025 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) ("we," "our," or the "Company") today reported results for the first quarter of 2025. First Quarter 2025 Summary1 •Net income of $15.1 million, or $0.73 per diluted common share. ◦Net interest margin (tax equ

April 24, 2025 EX-99.2

First Quarter 2025 Earnings Conference Call April 25, 2025 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Ac

First Quarter 2025 Earnings Conference Call April 25, 2025 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

April 11, 2025 8-K

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) April 11, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 11, 2025 EX-99.1

MidWestOne Financial Group, Inc. Announces First Quarter 2025 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces First Quarter 2025 Earnings Conference Call IOWA CITY, IOWA – APRIL 11, 2025 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its first quarter 2025 financial results will be released after market closes on Thursday, April 24, 2025. The Company will host a conference

March 11, 2025 EX-10.19

MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT

MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a restricted stock unit award (the “Award”) by MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), under the MidWestOne Financial Group, Inc. 2023 Equity Incentive Plan (the “Plan”). The Award shall be subject to the terms of the Pla

March 11, 2025 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2024 ☐ 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 001-35968 MIDWESTONE FINANCIAL GROUP, I

March 11, 2025 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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

March 11, 2025 EX-21.1

LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II

Exhibit 21.1 LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II State of Delaware 100% of common securities Barron Investment Capital Trust I State of Delaware 100% of common securities ATBancorp Stat

March 11, 2025 EX-10.20

MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT

MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN PERFORMANCE-BASED RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a performance-based restricted stock unit award (the “Award”) by MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), under the MidWestOne Financial Group, Inc. 2023 Equity Incentive Plan (the “Plan”). The Award shal

March 11, 2025 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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: ☐ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use

March 11, 2025 EX-10.21

MidWestOne Bank Amended and Restated Executive Life Insurance Plan

MidWestOne Bank Amended and Restated Executive Life Insurance Plan Introduction The purpose of this Amended and Restated Executive Life Insurance Plan (the “Plan”) is to promote the long-term financial success of MidWestOne Bank (the “Bank”) and its parent company, MidWestOne Financial Group, Inc.

March 11, 2025 EX-10.13

MidWestOne Financial Group, Inc. Employment Agreement

MidWestOne Financial Group, Inc. Employment Agreement This Employment Agreement (“Agreement”) is made and entered into as of September 12, 2024 (the “Effective Date”), by and between MidWestOne Financial Group, Inc. (the “Company”) and Paul Ho-Sing-Loy (“Executive,” and together with the Company, the “Parties”). RECITALS A.The Company desires to employ Executive pursuant to the terms of this Agree

February 10, 2025 EX-99

JOINT FILING AGREEMENT

JOINT FILING AGREEMENT The undersigned hereby agree that this Schedule 13G (the “Schedule 13G”) with respect to the common stock of MidWestOne Financial Group, Inc.

January 24, 2025 8-K

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) January 24, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 24, 2025 EX-99.1

Investor Presentation December 31, 2024 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Dubuque, Iowa Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado uque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forwa

Investor Presentation December 31, 2024 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Dubuque, Iowa Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado uque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

January 23, 2025 EX-99.2

Fourth Quarter 2024 Earnings Conference Call January 24, 2025 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform

Fourth Quarter 2024 Earnings Conference Call January 24, 2025 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

January 23, 2025 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 22, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 23, 2025 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2024

FOR IMMEDIATE RELEASE January 23, 2025 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2024 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the fourth quarter and full year of 2024. Fourth Quarter 2024 Summary1 •Net income of $16.3 million, or $0.78 per diluted common sha

January 10, 2025 EX-99.1

MidWestOne Financial Group, Inc. Announces Fourth Quarter 2024 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces Fourth Quarter 2024 Earnings Conference Call IOWA CITY, IOWA – JANUARY 10, 2025 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its fourth quarter 2024 financial results will be released after market closes on Thursday, January 23, 2025. The Company will host a conf

January 10, 2025 8-K

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) January 10, 2025 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2024 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 001-35968 MIDWESTONE FINANC

November 5, 2024 8-K

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) November 5, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 5, 2024 EX-99.1

Investor Presentation September 30, 2024 Iowa City, Iowa Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation con

Investor Presentation September 30, 2024 Iowa City, Iowa Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

October 24, 2024 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2024

FOR IMMEDIATE RELEASE October 24, 2024 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2024 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the third quarter of 2024. Third Quarter 2024 Summary1 •Completed a common equity capital raise, resulting in net proceeds to the Company of $118.6

October 24, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 23, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

October 24, 2024 EX-99.2

Third Quarter 2024 Earnings Conference Call October 25, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform

Third Quarter 2024 Earnings Conference Call October 25, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

October 11, 2024 8-K

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) October 11, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

October 11, 2024 EX-99.1

MidWestOne Financial Group, Inc. Announces Third Quarter 2024 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces Third Quarter 2024 Earnings Conference Call IOWA CITY, IOWA – OCTOBER 11, 2024 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its third quarter 2024 financial results will be released after market closes on Thursday, October 24, 2024. The Company will host a confer

September 30, 2024 8-K

Entry into a Material Definitive Agreement

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 26, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission File Number: 001-35968 Iowa 42-1206172 (State or other jurisdictio

September 30, 2024 EX-1.1

Underwriting Agreement, dated September 26, 2024, by and between MidWestOne Financial Group, Inc. and Keefe, Bruyette & Woods, Inc.

Exhibit 1.1 4,347,000 Shares MidWestOne Financial Group, Inc. UNDERWRITING AGREEMENT September 26, 2024 KEEFE, BRUYETTE & WOODS, INC. c/o Keefe, Bruyette & Woods, Inc. 787 Seventh Avenue 4th Floor New York, New York 10019 Ladies and Gentlemen: MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), proposes to issue and sell to Keefe, Bruyette & Woods, Inc. (the “Underwriter”), purs

September 27, 2024 424B5

4,347,000 Shares Common Stock

Filed pursuant to Rule 424(b)(5) Registration Statement No. 333-281845 PROSPECTUS SUPPLEMENT (To Prospectus dated September 11, 2024) 4,347,000 Shares Common Stock We are offering 4,347,000 shares of our common stock, par value $1.00 per share. Our common stock is listed on the Nasdaq Global Select Market, or Nasdaq, under the symbol “MOFG.” The last reported closing price of our common stock on N

September 27, 2024 8-K

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) September 26, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission File Number: 001-35968 Iowa 42-1206172 (State or other jurisdictio

September 27, 2024 EX-99.1

MidWestOne Financial Group, Inc. Announces Pricing of Common Stock Offering

Exhibit 99.1 MidWestOne Financial Group, Inc. Announces Pricing of Common Stock Offering IOWA CITY, Iowa (Sept. 26, 2024) – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (the “Company”), parent company of MidWestOne Bank (the “Bank”), today announced the pricing of its previously announced underwritten public offering of 4,347,000 shares of its common stock at a public offering price of $25.00 p

September 26, 2024 FWP

Follow-On Offering Investor Presentation September 2024 Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Notice to and Undertaking by Recipients In this presentation, “we,” “our,” “us,” “MidWestOne,” “MOFG" or the “Company” ref

Filed Pursuant to Rule 433 Issuer Free Writing Prospectus dated September 26, 2024 Relating to Preliminary Prospectus Supplement dated September 26, 2024 and Prospectus dated September 11, 2024 Registration No.

September 26, 2024 424B5

SUBJECT TO COMPLETION, DATED SEPTEMBER 26, 2024

Filed pursuant to Rule 424(b)(5) Registration Statement No. 333-281845 This preliminary prospectus supplement and the accompanying prospectus are part of an effective registration statement filed with the Securities and Exchange Commission under the Securities Act of 1933, as amended, and the information in this preliminary prospectus supplement is not complete and may be changed. This preliminary

September 10, 2024 CORRESP

September 10, 2024

September 10, 2024 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

August 29, 2024 EX-4.6

MIDWESTONE FINANCIAL GROUP, INC., as Issuer as Trustee Dated as of __________________, 20__ CROSS REFERENCE SHEET*

Exhibit 4.6 MIDWESTONE FINANCIAL GROUP, INC., as Issuer and , as Trustee INDENTURE Dated as of , 20 CROSS REFERENCE SHEET* Provisions of Trust Indenture Act of 1939, as amended, and Indenture to be dated as of , 20 by and between MidWestOne Financial Group, Inc. and , as Trustee: Section of the Trust Indenture Act Section of Indenture 310(a)(1), (2) and (5) 6.09 310(a)(3) and (4) Inapplicable 310(

August 29, 2024 EX-FILING FEES

Calculation of Filing Fee Tables Form S-3 (Form Type) MidWestOne Financial Group, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation Ru

Exhibit 107.1 Calculation of Filing Fee Tables Form S-3 (Form Type) MidWestOne Financial Group, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered and Carry Forward Securities Security Type Security Class Title Fee Calculation Rule Amount Registered(1) Proposed Maximum Offering Price Per Unit(1) Maximum Aggregate Offering Price(1) Fee Rate Amount of Registration

August 29, 2024 S-3

As filed with the Securities and Exchange Commission on August 29, 2024

As filed with the Securities and Exchange Commission on August 29, 2024 Registration No.

August 6, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2024 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 001-35968 MIDWESTONE FINANCIAL G

July 26, 2024 8-K

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) July 26, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 26, 2024 EX-99.1

Investor Presentation June 30, 2024 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Minneapolis, Minnesota Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains

Investor Presentation June 30, 2024 Iowa City, Iowa Iowa City, Iowa Denver, Colorado Minneapolis, Minnesota Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

July 25, 2024 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2024

FOR IMMEDIATE RELEASE July 25, 2024 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2024 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the second quarter of 2024. Second Quarter 2024 Summary1 •Completed sale of our Florida banking operations for a 7.5% deposit premium. ◦Included in t

July 25, 2024 EX-99.2

Second Quarter 2024 Earnings Conference Call July 26, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Ac

Second Quarter 2024 Earnings Conference Call July 26, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

July 25, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 23, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 12, 2024 8-K

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) July 12, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 12, 2024 EX-99.1

MidWestOne Financial Group, Inc. Announces Second Quarter 2024 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces Second Quarter 2024 Earnings Conference Call IOWA CITY, IOWA – JULY 12, 2024 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its second quarter 2024 financial results will be released after market closes on Thursday, July 25, 2024. The Company will host a conference

June 10, 2024 8-K

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) June 7, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of in

May 7, 2024 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2024 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 001-35968 MIDWESTONE FINANCIAL

April 26, 2024 EX-99.1

Investor Presentation March 31, 2024 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Dubuque, Iowa Iowa City, Iowa Denver, Colorado Minneapolis, Minnesota 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regard

Investor Presentation March 31, 2024 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Dubuque, Iowa Iowa City, Iowa Denver, Colorado Minneapolis, Minnesota 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

April 26, 2024 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, 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) April 25, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 25, 2024 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2024

FOR IMMEDIATE RELEASE April 25, 2024 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2024 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the first quarter of 2024. First Quarter 2024 Summary1 •Completed acquisition of Denver Bankshares, Inc. ("DNVB"), the related core banking system co

April 25, 2024 EX-99.2

First Quarter 2024 Earnings Conference Call April 26, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Ac

First Quarter 2024 Earnings Conference Call April 26, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

April 25, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 12, 2024 8-K

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) April 12, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 12, 2024 EX-99.1

MidWestOne Financial Group, Inc. Announces First Quarter 2024 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces First Quarter 2024 Earnings Conference Call IOWA CITY, IOWA – APRIL 12, 2024 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its first quarter 2024 financial results will be released after market closes on Thursday, April 25, 2024. The Company will host a conference

March 11, 2024 DEFR14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Ame

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934 (Amendment No. 1) Filed by the Registrant: x Filed by a party other than the Registrant: ☐ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Conf

March 8, 2024 EX-97.1

MIDWESTONE FINANCIAL GROUP, INC. CLAWBACK POLICY

MIDWESTONE FINANCIAL GROUP, INC. CLAWBACK POLICY 1. Introduction. The Board of Directors (the “Board”) of MidWestOne Financial Group, Inc. (the “Company”) believes that it is in the best interests of the Company and its shareholders to adopt this Clawback Policy (the “Policy”), which provides for the recovery of certain compensation in the event of an Accounting Restatement or Misconduct (each suc

March 8, 2024 EX-10.10

SECOND AMENDMENT TO CREDIT AGREEMENT

Execution Version SECOND AMENDMENT TO CREDIT AGREEMENT This SECOND AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), made and entered into as of September 19, 2023, is by and between MidWestOne Financial Group, Inc.

March 8, 2024 EX-10.9

FIRST AMENDMENT TO CREDIT AGREEMENT

FIRST AMENDMENT TO CREDIT AGREEMENT This FIRST AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), made and entered into as of September 30, 2022, is by and between MidWestOne Financial Group, Inc.

March 8, 2024 EX-19.1

Insider Trading Policy Guidelines with Respect to Certain Transactions in Company Securities MidWestOne Financial Group, Inc. (as amended January 23, 2024)

Insider Trading Policy and Guidelines with Respect to Certain Transactions in Company Securities of MidWestOne Financial Group, Inc.

March 8, 2024 EX-10.8

CREDIT AGREEMENT by and between MIDWESTONE FINANCIAL GROUP, INC. (the “Borrower”) U.S. BANK NATIONAL ASSOCIATION (the “Bank”) Dated as of June 7, 2022 Table of Contents Article I. DEFINITIONS AND ACCOUNTING TERMS 1 Section 1.1 Defined Terms 1 Section

CREDIT AGREEMENT by and between MIDWESTONE FINANCIAL GROUP, INC. (the “Borrower”) and U.S. BANK NATIONAL ASSOCIATION (the “Bank”) Dated as of June 7, 2022 Table of Contents Article I. DEFINITIONS AND ACCOUNTING TERMS 1 Section 1.1 Defined Terms 1 Section 1.2 Accounting Terms and Calculations 12 Section 1.3 Computation of Time Periods 12 Section 1.4 Other Definitional Terms 12 Section 1.5 Delaware

March 8, 2024 EX-10.11

THIRD AMENDMENT TO CREDIT AGREEMENT

Execution Version THIRD AMENDMENT TO CREDIT AGREEMENT This THIRD AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), made and entered into as of February 12, 2024, is by and between MidWestOne Financial Group, Inc.

March 8, 2024 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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: ☐ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use

March 8, 2024 EX-21.1

LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II

Exhibit 21.1 LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II State of Delaware 100% of common securities Barron Investment Capital Trust I State of Delaware 100% of common securities ATBancorp Stat

March 8, 2024 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2023 ☐ 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 001-35968 MIDWESTONE FINANCIAL GROUP, I

March 8, 2024 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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

February 2, 2024 EX-99.1

MidWestOne Financial Group, Inc. Completes Acquisition of Denver Bankshares, Inc.

MidWestOne Financial Group, Inc. Completes Acquisition of Denver Bankshares, Inc. IOWA CITY, IOWA – FEBRUARY 2, 2024 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank (the “Bank”), today announced the completion of its acquisition of Denver Bankshares, Inc. (“DNVB”), parent company of the Bank of Denver, effective January 31, 2024.

February 2, 2024 8-K

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) February 2, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 30, 2024 EX-99.1

Investor Presentation December 31, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Reg

Investor Presentation December 31, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

January 30, 2024 8-K

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) January 30, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 25, 2024 EX-99.2

Fourth Quarter 2023 Earnings Conference Call January 26, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform

Fourth Quarter 2023 Earnings Conference Call January 26, 2024 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

January 25, 2024 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2023

FOR IMMEDIATE RELEASE January 25, 2024 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2023 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the fourth quarter and full year of 2023. Fourth Quarter 2023 Summary1 •Net income of $2.7 million, or $0.17 per diluted common shar

January 25, 2024 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 23, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 12, 2024 EX-99.1

MidWestOne Financial Group, Inc. Announces Fourth Quarter 2023 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces Fourth Quarter 2023 Earnings Conference Call IOWA CITY, IOWA – JANUARY 12, 2024 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its fourth quarter 2023 financial results will be released after market closes on Thursday, January 25, 2024. The Company will host a conf

January 12, 2024 8-K

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) January 12, 2024 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 2, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2023 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 001-35968 MIDWESTONE FINANC

October 30, 2023 EX-99.1

Investor Presentation September 30, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Minneapolis, MinnesotaIowa City, Iowa Des Moines, IowaDenver, Colorado 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note R

ex991q32023investorprese Investor Presentation September 30, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Minneapolis, MinnesotaIowa City, Iowa Des Moines, IowaDenver, Colorado 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

October 30, 2023 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 30, 2023 MidWestOne Financ

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, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

October 26, 2023 EX-99.2

Third Quarter 2023 Earnings Conference Call October 27, 2023 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform

Third Quarter 2023 Earnings Conference Call October 27, 2023 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

October 26, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

October 26, 2023 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2023

FOR IMMEDIATE RELEASE October 26, 2023 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2023 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the third quarter of 2023. Third Quarter 2023 Highlights1 •Net income of $9.1 million, or $0.58 per diluted common share, compared to net income of

October 13, 2023 8-K

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) October 13, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

October 13, 2023 EX-99.1

MidWestOne Financial Group, Inc. Announces Third Quarter 2023 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces Third Quarter 2023 Earnings Conference Call IOWA CITY, IOWA – OCTOBER 13, 2023 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its third quarter 2023 financial results will be released after market closes on Thursday, October 26, 2023. The Company will host a confer

September 27, 2023 EX-99.2

Investor Presentation Acquisition of Denver Bankshares, Inc. & Divestiture of Florida Franchise September 27, 2023 2 Forward Looking Statements Cautionary Note Regarding Forward-Looking Statements Certain statements contained in this presentation tha

Investor Presentation Acquisition of Denver Bankshares, Inc. & Divestiture of Florida Franchise September 27, 2023 2 Forward Looking Statements Cautionary Note Regarding Forward-Looking Statements Certain statements contained in this presentation that are not statements of historical fact constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 19

September 27, 2023 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. ANNOUNCES STRATEGIC ACQUISITION IN DENVER

FOR IMMEDIATE RELEASE MIDWESTONE FINANCIAL GROUP, INC. ANNOUNCES STRATEGIC ACQUISITION IN DENVER IOWA CITY, Iowa, September 27, 2023 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne”, “we”, “our”, or the “Company”) today announced that it has executed a definitive merger agreement to strategically reinvest the proceeds from the previously announced sale of our Florida operations thro

September 27, 2023 8-K

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) September 27, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

September 25, 2023 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. ANNOUNCES SALE OF FLORIDA OPERATIONS

FOR IMMEDIATE RELEASE MIDWESTONE FINANCIAL GROUP, INC. ANNOUNCES SALE OF FLORIDA OPERATIONS IOWA CITY, Iowa, September 25, 2023 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne”, “we”, “our”, or the “Company”) today announced that it has executed a definitive purchase and assumption agreement for the sale of its Florida operations to DFCU Financial. This transaction is an all cash de

September 25, 2023 8-K

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) September 25, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

August 4, 2023 EX-99.1

Investor Presentation June 30, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Minneapolis, MinnesotaIowa City, Iowa Des Moines, IowaDenver, Colorado 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regard

Investor Presentation June 30, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Minneapolis, MinnesotaIowa City, Iowa Des Moines, IowaDenver, Colorado 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

August 4, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2023 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 001-35968 MIDWESTONE FINANCIAL G

August 4, 2023 8-K

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) August 4, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

August 1, 2023 EX-99.2

Second Quarter 2023 Earnings Conference Call August 1, 2023 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform A

Second Quarter 2023 Earnings Conference Call August 1, 2023 2 Forward Looking Statements & Non-GAAP Measures This presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

August 1, 2023 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

August 1, 2023 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2023

FOR IMMEDIATE RELEASE August 1, 2023 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2023 Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the second quarter of 2023. Second Quarter 2023 Highlights1 •Net income of $7.6 million, or $0.48 per diluted common share, compared to net income o

July 25, 2023 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) July 24, 2023 MidWestOne Financial

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 24, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 25, 2023 EX-99.1

MidWestOne Financial Group, Inc. Announces Second Quarter 2023 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces Second Quarter 2023 Earnings Conference Call IOWA CITY, IOWA – JULY 24, 2023 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its second quarter 2023 financial results will be released before market open on Tuesday, August 1, 2023. The Company will host a conference

June 7, 2023 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) June 7, 2023 MidWestOne Financial

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 7, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of in

June 7, 2023 EX-99.1

Investor Presentation March 31, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Minneapolis, Minnesota Dubuque, IowaDenver, Colorado Iowa City, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regardi

ex991q12023investorprese Investor Presentation March 31, 2023 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Minneapolis, Minnesota Dubuque, IowaDenver, Colorado Iowa City, Iowa 2 Forward Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This release contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

May 5, 2023 EX-FILING FEES

Calculation of Filing Fee Tables Form S-8 (Form Type) MidWestOne Financial Group, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation Rule Amount Register

Exhibit 107 Calculation of Filing Fee Tables Form S-8 (Form Type) MidWestOne Financial Group, Inc.

May 5, 2023 S-8

As filed with the Securities and Exchange Commission on May 5, 2023

As filed with the Securities and Exchange Commission on May 5, 2023 Registration No.

May 5, 2023 EX-4.8

MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT

Exhibit 4.8 MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN PERFORMANCE-BASED RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a performance-based restricted stock unit award (the “Award”) by MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), under the MidWestOne Financial Group, Inc. 2023 Equity Incentive Plan (the “Plan”). Th

May 5, 2023 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2023 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 001-35968 MIDWESTONE FINANCIAL

May 5, 2023 EX-4.7

MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT

Exhibit 4.7 MIDWESTONE FINANCIAL GROUP, INC. 2023 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a restricted stock unit award (the “Award”) by MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), under the MidWestOne Financial Group, Inc. 2023 Equity Incentive Plan (the “Plan”). The Award shall be subject to the term

May 2, 2023 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) April 27, 2023 MidWestOne Financia

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 27, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 27, 2023 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) April 27, 2023 MidWestOne Financia

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 27, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 27, 2023 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2023 ~Announces Strategic Plan and Financial Targets~ ~Repositioning of the Company's Balance Sheet Provides Earnings, Margin and Return Accretion~

FOR IMMEDIATE RELEASE April 27, 2023 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2023 ~Announces Strategic Plan and Financial Targets~ ~Repositioning of the Company's Balance Sheet Provides Earnings, Margin and Return Accretion~ Iowa City, Iowa - MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“we”, “our”, or the "Company”) today reported results for the fi

April 27, 2023 EX-99.2

First Quarter 2023 Earnings Conference Call April 28, 2023 2 Forward Looking Statements & Non-GAAP Measures This release contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of

ex992q12023earningssuppl First Quarter 2023 Earnings Conference Call April 28, 2023 2 Forward Looking Statements & Non-GAAP Measures This release contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

April 13, 2023 8-K

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) April 13, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 13, 2023 EX-99.1

MidWestOne Financial Group, Inc. Announces First Quarter 2023 Earnings Conference Call

MidWestOne Financial Group, Inc. Announces First Quarter 2023 Earnings Conference Call IOWA CITY, IOWA – APRIL 13, 2023 – MidWestOne Financial Group, Inc. (Nasdaq: MOFG) (“MidWestOne” or the “Company”), parent company of MidWestOne Bank, today announced that its first quarter 2023 financial results will be released after market close on Thursday, April 27, 2023. The Company will host a conference

March 15, 2023 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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: ☐ Check the appropriate box: ¨ Preliminary Proxy Statement ¨ Confidential, for Use

March 15, 2023 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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

March 13, 2023 EX-21.1

LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II

Exhibit 21.1 LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II State of Delaware 100% of common securities Barron Investment Capital Trust I State of Delaware 100% of common securities ATBancorp Stat

March 13, 2023 EX-4.2

Exhibit 4.2

Exhibit 4.2 DESCRIPTION OF THE COMPANY’S SECURITIES REGISTERED PURSUANT TO SECTION 12 OF THE SECURITIES EXCHANGE ACT OF 1934 The following description of the material terms of the common stock of MidWestOne Financial Group, Inc. (the “Company,” which is also referred to herein as “we,” “our” or “us”) is only a summary. This summary does not purport to be a complete description of the terms and con

March 13, 2023 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2022 ☐ 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 001-35968 MIDWESTONE FINANCIAL GROUP, I

January 27, 2023 8-K

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) January 26, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 27, 2023 EX-99.1

Investor Presentation December 31, 2022 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Reg

Investor Presentation December 31, 2022 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Iowa City, Iowa Minneapolis, Minnesota Denver, Colorado Dubuque, Iowa 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

January 26, 2023 EX-10.1

EX-10.1

EX-10.1 2 letteragreementsigned012.htm EX-10.1

January 26, 2023 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2022

FOR IMMEDIATE RELEASE January 26, 2023 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2022 Fourth Quarter Summary1 •Net income for the fourth quarter was $16.0 million, or $1.02 per diluted common share. ◦Revenue was $54.5 million, which included $2.5 million, or $0.16 per diluted common share, of additional bargain purchase gain stemming from th

January 26, 2023 8-K

Departure of Directors or Certain Officers; Election of Directors; Appointment of Certain Officers; Compensatory Arrangements of Certain Officers, Financial Statements and Exhibits, Results of Operations and Financial Condition, 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, 2023 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 3, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2022 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 001-35968 MIDWESTONE FINANC

November 3, 2022 8-K

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) November 3, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 3, 2022 EX-99.1

Investor Presentation September 30, 2022 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Platteville's 75th Dairy Days Celebration Dubuque, Iowa Minneapolis, MinnesotaIowa City, Iowa Denver, Colorado 2 Forward-Looking Statemen

Investor Presentation September 30, 2022 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota Platteville's 75th Dairy Days Celebration Dubuque, Iowa Minneapolis, MinnesotaIowa City, Iowa Denver, Colorado 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain ?forward-looking statements? within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

October 27, 2022 8-K

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 27, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

October 27, 2022 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2022

FOR IMMEDIATE RELEASE October 27, 2022 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2022 Third Quarter Summary1 ?Net income for the third quarter was $18.3 million, or $1.17 per diluted common share. ?Net interest margin (tax equivalent) expanded 21 basis points (bps) to 3.08%2. ?Annualized core loan growth (excluding PPP) of 15.72%2. ?Nonperforming assets ra

October 19, 2022 8-K

Regulation FD Disclosure, 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, 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) October 18, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

October 19, 2022 EX-10.1

MidWestOne Financial Group, Inc. EMPLOYMENT AGREEMENT

MidWestOne Financial Group, Inc. EMPLOYMENT AGREEMENT This Employment Agreement (?Agreement?) is made and entered into as of November 1, 2022 (the ?Effective Date?), by and between MidWestOne Financial Group, Inc. (the ?Company?) and Charles N. Reeves (?Executive,? and together with the Company, the ?Parties?). RECITALS A.The Company desires to employ Executive pursuant to the terms of this Agreem

October 19, 2022 EX-3.1

THIRD AMENDED AND RESTATED BYLAWS, AS AMENDED MIDWESTONE FINANCIAL GROUP, INC. ARTICLE I.

Amended on October 18, 2022 THIRD AMENDED AND RESTATED BYLAWS, AS AMENDED OF MIDWESTONE FINANCIAL GROUP, INC.

October 19, 2022 EX-99.1

NAMES CHARLES N. REEVES AS NEW CEO

FOR IMMEDIATE RELEASE MIDWESTONE NAMES CHARLES N. REEVES AS NEW CEO Seasoned Banking Leader Brings Track Record of Driving Growth for Community, Regional and National Institutions IOWA CITY, IOWA ? OCTOBER 19, 2022 ? MidWestOne Financial Group, Inc. (Nasdaq: MOFG), parent company of MidWestOne Bank, today announced that its Board of Directors has named Charles (Chip) N. Reeves, 54, as its new Chie

September 29, 2022 8-K

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 27, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

September 29, 2022 EX-10.1

MidWestOne Financial Group, Inc. -----------SM (31 9) 356-5800 Fax: (319) 356-5849 I 02 South Clinton Street Iowa City, IA 52240 September 27, 2022 Mr. Len D. Devaisher c/o MidWestOne Financial Group, Inc. 102 South Clinton Street Iowa City, Iowa 522

MidWestOne Financial Group, Inc. -SM (31 9) 356-5800 Fax: (319) 356-5849 I 02 South Clinton Street Iowa City, IA 52240 September 27, 2022 Mr. Len D. Devaisher c/o MidWestOne Financial Group, Inc. 102 South Clinton Street Iowa City, Iowa 52240 Dear Len: In recogmtion of your service as the Interim Chief Executive Officer ("Interim CEO") of MidWestOne Financial Group, Inc. (the "Company") and MidWes

August 15, 2022 8-K

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) August 12, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

August 4, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 OR ☐ TRANSITION REPORT PURSUANT T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended June 30, 2022 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 001-35968 MIDWESTONE FINANCIAL G

July 29, 2022 EX-99.1

Investor Presentation June 30, 2022 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains cert

Investor Presentation June 30, 2022 Iowa City, Iowa Denver, Colorado Naples, Florida Minneapolis, Minnesota 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain ?forward-looking statements? within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

July 29, 2022 8-K

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) July 29, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 28, 2022 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2022

FOR IMMEDIATE RELEASE July 28, 2022 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2022 Second Quarter Summary1 ?Completed acquisition of Iowa First Bancshares Corp ("IOFB"). ?Annualized adjusted core loan growth (excluding IOFB and PPP) of 10.53%2. ?Nonperforming assets ratio improved 10 basis points (bps) to 0.43%; net charge-off ratio improved 25 bps to 0.0

July 28, 2022 8-K

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 28, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 26, 2022 CORRESP

July 26, 2022

July 26, 2022 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

July 21, 2022 EX-FILING FEES

Calculation of Filing Fee Table (Form Type) MidWestOne Financial Group, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities

Exhibit 107.1 Calculation of Filing Fee Table S-3 (Form Type) MidWestOne Financial Group, Inc. (Exact Name of Registrant as Specified in its Charter) Table 1: Newly Registered Securities Security Type Security Class Title Fee Calculation or Carry Forward Rule Amount Registered (a) Proposed Maximum Offering Price Per Unit (a) Maximum Aggregate Offering Price (a) Fee Rate Amount of Registration Fee

July 21, 2022 S-3

As filed with the Securities and Exchange Commission on July 21, 2022

As filed with the Securities and Exchange Commission on July 21, 2022 Registration No.

July 21, 2022 8-K

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 19, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 21, 2022 EX-4.6

MIDWESTONE FINANCIAL GROUP, INC., as Issuer as Trustee Dated as of __________________, 20__

Exhibit 4.6 MIDWESTONE FINANCIAL GROUP, INC., as Issuer and , as Trustee INDENTURE Dated as of , 20 1 CROSS REFERENCE SHEET* Provisions of Trust Indenture Act of 1939, as amended, and Indenture to be dated as of , 20 by and between MidWestOne Financial Group, Inc. and , as Trustee: Section of the Trust Indenture Act Section of Indenture 310(a)(1), (2) and (5) 6.09 310(a)(3) and (4) Inapplicable 31

July 6, 2022 8-K

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) July 1, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of in

June 9, 2022 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. COMPLETES ACQUISITION OF IOWA FIRST BANCSHARES CORP.

FOR IMMEDIATE RELEASE JUNE 9, 2022 MIDWESTONE FINANCIAL GROUP, INC. COMPLETES ACQUISITION OF IOWA FIRST BANCSHARES CORP. Iowa City, Iowa ? MidWestOne Financial Group, Inc. (NASDAQ: MOFG) (?MidWestOne?), parent company of MidWestOne Bank (the ?Bank?), today announced the completion of its acquisition of Iowa First Bancshares Corp. (OTC Pink: IOFB) (?IOFB?), parent company of First National Bank of

June 9, 2022 8-K

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) June 9, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of in

June 3, 2022 EX-99.1

Investor Presentation March 31, 2022 Denver, Colorado Fort Myers, Florida Minneapolis, MinnesotaIowa City, Iowa 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains

Investor Presentation March 31, 2022 Denver, Colorado Fort Myers, Florida Minneapolis, MinnesotaIowa City, Iowa 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain ?forward-looking statements? within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

June 3, 2022 8-K

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) June 3, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of in

May 5, 2022 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 OR ☐ TRANSITION REPORT PURSUANT

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended March 31, 2022 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 001-35968 MIDWESTONE FINANCIAL

May 3, 2022 8-K

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) April 28, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 28, 2022 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2022

FOR IMMEDIATE RELEASE April 28, 2022 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2022 First Quarter Summary1 ?Net income for the first quarter was $13.9 million, or $0.88 per diluted common share. ?Total revenue, net of interest expense, of $49.0 million. ?Noninterest expense of $31.6 million. ?Core commercial annualized loan growth of 5.4% to $2.71 billion2

April 28, 2022 8-K

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 28, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

March 15, 2022 DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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: ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use

March 15, 2022 DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION Proxy Statement Pursuant to Section 14(a) of the Securities Exchange Act of 1934

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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

March 10, 2022 EX-21.1

LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II

Exhibit 21.1 LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II State of Delaware 100% of common securities Barron Investment Capital Trust I State of Delaware 100% of common securities ATBancorp Stat

March 10, 2022 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ☒ ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ☐ TRANSITION REPORT PURSUANT TO SECTI

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2021 ? 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 001-35968 MIDWESTONE FINANCIAL GROUP, I

March 10, 2022 EX-10.18

MidWestOne Financial Group, Inc. Amended and Restated Employment Agreement

MidWestOne Financial Group, Inc. Amended and Restated Employment Agreement This Amended and Restated Employment Agreement (?Agreement?) is made and entered into as of March 8, 2022 (the ?Effective Date?), by and between MidWestOne Financial Group, Inc. (the ?Company?) and Len D. Devaisher (?Executive,? and together with the Company, the ?Parties?). Recitals A.The Parties have previously entered in

February 7, 2022 8-K

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 7, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 27, 2022 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2021

FOR IMMEDIATE RELEASE January 27, 2022 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2021 Fourth Quarter Summary1 ?Net income for the fourth quarter was $14.3 million, or $0.91 per diluted common share. ?Total revenue, net of interest expense, of $50.0 million. ?Credit loss expense of $0.6 million. ?Noninterest expense of $30.4 million. ?Excludi

January 27, 2022 8-K

Regulation FD Disclosure, Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 25, 2022 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 27, 2022 EX-99.2

Investor Presentation December 31, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in

Investor Presentation December 31, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain ?forward-looking statements? within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

January 27, 2022 EX-3.1

THIRD AMENDED AND RESTATED BYLAWS, AS AMENDED MIDWESTONE FINANCIAL GROUP, INC. ARTICLE I.

Amended on January 25, 2022 THIRD AMENDED AND RESTATED BYLAWS, AS AMENDED OF MIDWESTONE FINANCIAL GROUP, INC.

November 4, 2021 EX-10.1

EIGHTH AMENDMENT TO CREDIT AGREEMENT

Execution Copy EIGHTH AMENDMENT TO CREDIT AGREEMENT This EIGHTH AMENDMENT TO CREDIT AGREEMENT (this ?Amendment?), made and entered into as of October 22, 2021, and made effective as of September 30, 2021, is by and between MidWestOne Financial Group, Inc.

November 4, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period ended September 30, 2021 OR ☐ TRANSITION REPORT PURSU

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period 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 001-35968 MIDWESTONE FINANC

November 2, 2021 EX-99.1

Investor Presentation September 30, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in

Investor Presentation September 30, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain ?forward-looking statements? within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

November 2, 2021 8-K

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) November 2, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 1, 2021 8-K

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) November 01, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

November 1, 2021 8-K

Regulation FD Disclosure, 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) November 01, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

November 1, 2021 EX-2.1

AGREEMENT AND PLAN OF MERGER by and among IOWA FIRST BANCSHARES CORP., MIDWESTONE FINANCIAL GROUP, INC., IFBC ACQUISITION CORP. (Upon Formation and Execution of an Accession Agreement) Dated as of November 1, 2021

Exhibit 2.1 AGREEMENT AND PLAN OF MERGER by and among IOWA FIRST BANCSHARES CORP., MIDWESTONE FINANCIAL GROUP, INC., and IFBC ACQUISITION CORP. (Upon Formation and Execution of an Accession Agreement) Dated as of November 1, 2021 Article I THE MERGER..............................................................................................?.. 2 1.1 The Merger....................................

November 1, 2021 EX-99.1

MidWestOne Financial Group, Inc. to Acquire Iowa First Bancshares Corp.

IOWA FIRST BANCSHARES CORP. FOR IMMEDIATE RELEASE Contacts: Charles Funk Debra R. Lins MidWestOne Financial Group, Inc. First National Bank of Muscatine Chief Executive Officer President & Chief Executive Officer 319-356-5800 563-263-4221 MidWestOne Financial Group, Inc. to Acquire Iowa First Bancshares Corp. IOWA CITY, IA and MUSCATINE, IA, November 1, 2021 ? MidWestOne Financial Group, Inc. (?Mi

November 1, 2021 EX-99.2

Investor Presentation Acquisition of Iowa First Bancshares Corp. November 1, 2021 2 Forward Looking Statements Cautionary Note Regarding Forward-Looking Statements Certain statements contained in this presentation that are not statements of historica

Investor Presentation Acquisition of Iowa First Bancshares Corp. November 1, 2021 2 Forward Looking Statements Cautionary Note Regarding Forward-Looking Statements Certain statements contained in this presentation that are not statements of historical fact constitute forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995 that are subject to risks and

November 1, 2021 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2021

FOR IMMEDIATE RELEASE November 1, 2021 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2021 Third Quarter Summary1 ?Net income for the third quarter was $16.3 million, or $1.03 per diluted common share. ?Total revenue, net of interest expense, of $49.5 million. ?Credit loss benefit of $1.1 million. ?Noninterest expense of $29.8 million. ?Excluding Paycheck Prote

October 22, 2021 8-K

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 19, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

August 5, 2021 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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 T

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? 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 to Commission file number 001-35968 MIDWESTONE FINANCIAL G

August 2, 2021 EX-99.1

Investor Presentation June 30, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the

Investor Presentation June 30, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain ?forward-looking statements? within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

August 2, 2021 8-K

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) July 30, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 22, 2021 8-K

Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 22, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 22, 2021 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2021

FOR IMMEDIATE RELEASE July 22, 2021 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2021 Second Quarter Summary(1) ?Net income for the second quarter was $17.3 million, or $1.08 per diluted common share. ?Total revenue, net of interest expense, of $48.7 million. ?Credit loss benefit of $2.1 million. ?Noninterest expense of $28.7 million. ?Excluding PPP loans, c

June 24, 2021 8-K

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) June 22, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

May 6, 2021 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ? 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 to Commission file number 001-35968 MIDWESTONE FINANCIAL

May 4, 2021 EX-99.1

Investor Presentation March 31, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the

Investor Presentation March 31, 2021 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain ?forward-looking statements? within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

May 4, 2021 8-K

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 4, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of inc

April 30, 2021 8-K

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) April 30, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 22, 2021 8-K

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 22, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 22, 2021 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2021

FOR IMMEDIATE RELEASE April 22, 2021 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FIRST QUARTER OF 2021 First Quarter Summary(1) ?Net income for the first quarter was a record $21.6 million, or $1.35 per diluted common share. ?Total revenue, net of interest expense, increased to $50.4 million. ?Credit loss benefit increased to $4.7 million. ?Noninterest expense decreased to $

March 16, 2021 DEFA14A

- DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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

March 16, 2021 DEF 14A

- DEF 14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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: ? Check the appropriate box: ? Preliminary Proxy Statement ? Confidential, for Use

March 11, 2021 10-K

Annual Report - 10-K

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-K ? ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the fiscal year ended December 31, 2020 ? 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 001-35968 MIDWESTONE FINANCIAL GROUP, I

March 11, 2021 EX-10.11

EXECUTION COPY SEVENTH AMENDMENT TO CREDIT AGREEMENT This SEVENTH AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), made and entered into as of December 11, 2020, is by and between MidWestOne Financial Group, Inc. a corporation organized under the la

EX-10.11 4 ex1011202010-k.htm EX-10.11 EXECUTION COPY SEVENTH AMENDMENT TO CREDIT AGREEMENT This SEVENTH AMENDMENT TO CREDIT AGREEMENT (this “Amendment”), made and entered into as of December 11, 2020, is by and between MidWestOne Financial Group, Inc. a corporation organized under the laws of the State of Iowa (the “Borrower”), and U.S. Bank National Association, a national banking association (t

March 11, 2021 EX-10.16

MIDWESTONE FINANCIAL GROUP, INC. AMENDED AND RESTATED EXECUTIVE DEFERRED COMPENSATION PLAN 1. Purpose. The purpose of this MidWestOne Financial Group, Inc. Amended and Restated Executive Deferred Compensation Plan (the “Plan”) is to enable selected k

EX-10.16 5 ex1016202010-k.htm EX-10.16 MIDWESTONE FINANCIAL GROUP, INC. AMENDED AND RESTATED EXECUTIVE DEFERRED COMPENSATION PLAN 1. Purpose. The purpose of this MidWestOne Financial Group, Inc. Amended and Restated Executive Deferred Compensation Plan (the “Plan”) is to enable selected key officers of MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), and its affiliates to ele

March 11, 2021 EX-10.4

MIDWESTONE FINANCIAL GROUP, INC. 2017 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a restricted stock unit award (the “Award”) by MIDWESTONE FINANCIAL GROUP, INC., an Iowa corporation (

EX-10.4 2 exhibit104202010-k.htm EX-10.4 MIDWESTONE FINANCIAL GROUP, INC. 2017 EQUITY INCENTIVE PLAN RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a restricted stock unit award (the “Award”) by MIDWESTONE FINANCIAL GROUP, INC., an Iowa corporation (the “Company”), under the MIDWESTONE FINANCIAL GROUP, INC. 2017 EQUITY INCENTIVE PLAN (the “Plan”). The Award

March 11, 2021 EX-21.1

LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II

EX-21.1 6 exhibit21110k2020.htm EX-21.1 Exhibit 21.1 LIST OF SUBSIDIARIES Subsidiaries of the Company Organized Under the Laws of Percent Owned by the Company MidWestOne Bank State of Iowa 100% MidWestOne Statutory Trust II State of Delaware 100% of common securities Central Bancshares Capital Trust II State of Delaware 100% of common securities Barron Investment Capital Trust I State of Delaware

March 11, 2021 EX-10.5

MIDWESTONE FINANCIAL GROUP, INC. 2017 EQUITY INCENTIVE PLAN PERFORMANCE-BASED RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a performance-based restricted stock unit award (the “Award”) by MIDWESTONE FINANCIA

MIDWESTONE FINANCIAL GROUP, INC. 2017 EQUITY INCENTIVE PLAN PERFORMANCE-BASED RESTRICTED STOCK UNIT AWARD AGREEMENT The Participant specified below is hereby granted a performance-based restricted stock unit award (the ?Award?) by MIDWESTONE FINANCIAL GROUP, INC., an Iowa corporation (the ?Company?), under the MIDWESTONE FINANCIAL GROUP, INC. 2017 EQUITY INCENTIVE PLAN (the ?Plan?). The Award shal

February 26, 2021 EX-99.1

Investor Presentation December 31, 2020 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in

EX-99.1 2 ex991q42020investorprese.htm EX-99.1 Investor Presentation December 31, 2020 2 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995. We and our representatives may, from time to time

February 26, 2021 8-K

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) February 26, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

January 28, 2021 EX-99.2

SUPPLEMENTAL INFORMATION FOURTH QUARTER 2020 December 31, 2020 2 Credit Monitoring 3 Credit Monitoring • Monthly Past Due Loan Reviews ◦ Population: All past due loans. ◦ Objective: Delinquency resolution and loan risk rating evaluation • Quarterly L

EX-99.2 3 mofgq42020earningscallpr.htm EX-99.2 SUPPLEMENTAL INFORMATION FOURTH QUARTER 2020 December 31, 2020 2 Credit Monitoring 3 Credit Monitoring • Monthly Past Due Loan Reviews ◦ Population: All past due loans. ◦ Objective: Delinquency resolution and loan risk rating evaluation • Quarterly Loan Strategy ◦ Population: Watch risk rated loans >$1 million Substandard risk rated loans >$500 thousa

January 28, 2021 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, 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, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

January 28, 2021 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2020

FOR IMMEDIATE RELEASE January 28, 2021 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE FOURTH QUARTER AND FULL YEAR OF 2020 Fourth Quarter Summary(1) •Net income for the fourth quarter was $16.7 million, or $1.04 per diluted common share. ◦Revenue, net of interest expense, increased $2.3 million, or 5%, to $49.7 million. ◦Credit loss expense decreased $8.0 million, or 161%, from

January 25, 2021 EX-3.1

THIRD AMENDED AND RESTATED BYLAWS MIDWESTONE FINANCIAL GROUP, INC. ARTICLE I.

EX-3.1 2 thirdamendedandrestatedbyl.htm EX-3.1 THIRD AMENDED AND RESTATED BYLAWS OF MIDWESTONE FINANCIAL GROUP, INC. ARTICLE I. OFFICES The principal office of the corporation in the State of Iowa shall be located in the City of Iowa City, County of Johnson. The corporation may have such other offices, either within or without the State of Iowa, as the Board of Directors may designate or as the bu

January 25, 2021 8-K

Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year, 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) January 20, 2021 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 9, 2020 EX-99.1

Investor Presentation September 30, 2020 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in t

ex991q32020investorprese Investor Presentation September 30, 2020 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

November 9, 2020 8-K

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) November 9, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

November 5, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ QUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934 For the quarterly period 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 001-35968 MIDWESTONE FINANC

October 29, 2020 EX-99.2

SUPPLEMENTAL INFORMATION THIRD QUARTER 2020 September 30, 2020 Credit Monitoring 2 Credit Monitoring • During the third quarter of 2020, credit monitoring procedures included a review of the following loan totals: ◦ Enhanced Risk Rating Review $801 m

ex992mofgq32020earningsc SUPPLEMENTAL INFORMATION THIRD QUARTER 2020 September 30, 2020 Credit Monitoring 2 Credit Monitoring • During the third quarter of 2020, credit monitoring procedures included a review of the following loan totals: ◦ Enhanced Risk Rating Review $801 million, or 23% of the loan portfolio.

October 29, 2020 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2020

EX-99.1 2 financialresultsq32020.htm EX-99.1 FOR IMMEDIATE RELEASE October 29, 2020 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE THIRD QUARTER OF 2020 Third Quarter Summary(1) •Net loss for the third quarter of $19.8 million, or a loss of $1.23 per diluted common share, driven by goodwill write-down of $31.5 million. •Excluding goodwill write-down, core earnings(2) were stabl

October 29, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 29, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction o

September 18, 2020 8-K

Regulation FD Disclosure, 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) September 18, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

September 18, 2020 EX-99.1

Investor Presentation Update September 18, 2020 Forward-Looking Statements Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the Private Se

ex991q22020investorprese Investor Presentation Update September 18, 2020 Forward-Looking Statements Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

September 17, 2020 424B3

Offer to Exchange Up to $65,000,000 aggregate principal amount of 5.75% Fixed-to-Floating Rate Subordinated Notes due 2030 that have been registered under the Securities Act of 1933 for any and all outstanding unregistered 5.75% Fixed-to-Floating Rat

Filed pursuant to Rule 424(b)(3) Registration No. 333-248574 PROSPECTUS Offer to Exchange Up to $65,000,000 aggregate principal amount of 5.75% Fixed-to-Floating Rate Subordinated Notes due 2030 that have been registered under the Securities Act of 1933 for any and all outstanding unregistered 5.75% Fixed-to-Floating Rate Subordinated Notes due 2030 The exchange offer will expire at 11:59 p.m., Ne

September 14, 2020 CORRESP

-

September 14, 2020 VIA EDGAR United States Securities and Exchange Commission Division of Corporation Finance 100 F Street, N.

September 10, 2020 8-K

Regulation FD Disclosure, 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) September 10, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction

September 10, 2020 EX-99.1

Investor Presentation June 30, 2020 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the Pr

ex991q22020investorpres Investor Presentation June 30, 2020 Forward-Looking Statements & Non-GAAP Measures Cautionary Note Regarding Forward-Looking Statements This investor presentation contains certain “forward-looking statements” within the meaning of such term in the Private Securities Litigation Reform Act of 1995.

September 3, 2020 EX-99.1

Form of Letter of Transmittal (filed herewith).

EX-99.1 5 exhibit991formofletter.htm EX-99.1 MIDWESTONE FINANCIAL GROUP, INC. LETTER OF TRANSMITTAL To Tender for Exchange 5.75% Fixed-to-Floating Rate Subordinated Notes due 2030 CUSIP #598511 AB9 / ISIN #US598511AB93 and CUSIP #598511 AA1 / ISIN #US598511AA11 (the “Old Notes”) for 5.75% Fixed-to-Floating Rate Subordinated Notes due 2030 that have been registered under the Securities Act of 1933

September 3, 2020 EX-25.1

Form T-1 Statement of Eligibility under the Trust Indenture Act of 1939, as amended, of U.S. Bank National Association (filed herewith).

exhibit251formt-1 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 I.R.S. Employer Iden

September 3, 2020 S-4

- S-4

As filed with the Securities and Exchange Commission on September 3, 2020 Registration No.

August 6, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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 to Commission file number 001-35968 MIDWESTONE FINANCIAL G

July 31, 2020 EX-99.2

COVID-19 RESPONSE AND SUPPLEMENTAL FINANCIAL INFORMATION SECOND QUARTER 2020 June 30, 2020 COVID-19 Response 2 Providing Support During COVID-19 Pandemic Supporting our Employees: Supporting our Customers: Supporting our Communities: Focus on Safety:

EX-99.2 3 mofgq22020earningscallpr.htm EX-99.2 COVID-19 RESPONSE AND SUPPLEMENTAL FINANCIAL INFORMATION SECOND QUARTER 2020 June 30, 2020 COVID-19 Response 2 Providing Support During COVID-19 Pandemic Supporting our Employees: Supporting our Customers: Supporting our Communities: Focus on Safety: Paycheck Protection Program • In addition to the more than 200 organizations • Provided customer relie

July 31, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 30, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of i

July 31, 2020 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2020

EX-99.1 2 financialresults2020q2.htm EX-99.1 FOR IMMEDIATE RELEASE July 30, 2020 MIDWESTONE FINANCIAL GROUP, INC. REPORTS FINANCIAL RESULTS FOR THE SECOND QUARTER OF 2020 Second Quarter Summary1 •Net income for the second quarter of $11.7 million, or $0.73 per diluted common share. ◦Pre-tax, Pre-provision Net Revenue2 of $18.9 million, an increase of $1.4 million or 8%. ◦Credit Loss Expense of $4.

July 29, 2020 EX-4.1

Financial Group, Inc. and U.S. Bank National Association, as trustee (incorporated by reference to Exhibit 4.1 to MidWestOne Financial Group, Inc.’s Current Report on Form 8-K filed with the SEC on July 29, 2020).

EX-4.1 2 tm2025476d1ex4-1.htm EXHIBIT 4.1 Exhibit 4.1 Execution Version MidWestOne Financial Group, Inc. As Issuer, and U.S. Bank National Association As Trustee INDENTURE Dated as of July 28, 2020 5.75% Fixed-to-Floating Rate Subordinated Notes due 2030 TABLE OF CONTENTS ARTICLE I DEFINITIONS AND INCORPORATION BY REFERENCE 1 Section 101 Definitions 1 Section 102 Compliance Certificates and Opinio

July 29, 2020 8-K

Regulation FD Disclosure, Entry into a Material Definitive Agreement, Financial Statements and Exhibits, Creation of a Direct Financial Obligation or an Obligation under an Off-Balance Sheet Arrangement of a Registrant

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 28, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in charter) Iowa 001-35968 42-1206172 (State or other jurisdiction of incorporation) (Commission

July 29, 2020 EX-99.2

Subordinated Notes Offering Investor Presentation July 8, 2020

Exhibit 99.2 Subordinated Notes Offering Investor Presentation July 8, 2020 2 Disclaimer The information included in this presentation is confidential and may not be reproduced or redistributed, passed on or divulg ed, directly or indirectly, to any other person. MidWest One Financial Group, Inc. (the “Company” or “MidWest One ”) reserves the right to request the return of this presentation at any

July 29, 2020 EX-99.1

MidWestOne Financial Group, Inc. Announces Completion of $65.0 Million Subordinated Notes Offering

EX-99.1 5 tm2025476d1ex99-1.htm EXHIBIT 99.1 Exhibit 99.1 MidWestOne Financial Group, Inc. Announces Completion of $65.0 Million Subordinated Notes Offering IOWA CITY, Iowa, July 24, 2020 (GLOBE NEWSWIRE) - MidWestOne Financial Group, Inc. (Nasdaq – MOFG; the “Company”) announced today the issuance of $65 million aggregate principal amount of fixed-to-floating rate subordinated notes (the “Notes”)

July 29, 2020 EX-10.2

Financial Group, Inc. and the Purchasers signatory thereto (incorporated by reference to Exhibit 10.2 to MidWestOne Financial Group, Inc.’s Current Report on Form 8-K filed with the SEC on July 29, 2020).

Exhibit 10.2 Execution Version REGISTRATION RIGHTS AGREEMENT This REGISTRATION RIGHTS AGREEMENT (this “Agreement”) is dated as of July 28, 2020, and is made by and among MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), and the several purchasers of the Subordinated Notes (as defined below) identified on the signature pages to the Purchase Agreement (as defined below) (collect

July 29, 2020 EX-10.1

Form of Subordinated Note Purchase Agreement, dated July 28, 2020, by and among MidWestOne Financial Group, Inc. and the Purchasers.

Exhibit 10.1 Execution Version SUBORDINATED NOTE PURCHASE AGREEMENT This SUBORDINATED NOTE PURCHASE AGREEMENT (this “Agreement”) is dated as of July 28, 2020, and is made by and among MidWestOne Financial Group, Inc., an Iowa corporation (the “Company”), and the several purchasers of the Subordinated Notes (as defined herein) identified on the signature pages hereto (each a “Purchaser” and collect

July 6, 2020 EX-10.1

MIDWESTONE FINANCIAL GROUP, INC. EMPLOYMENT AGREEMENT This Employment Agreement (“Agreement”) is made and entered into as of July 6, 2020 (the “Effective Date”), by and between MidWestOne Financial Group, Inc. (the “Company”) and Len D. Devaisher (“E

EX-10.1 2 presidentandcooemplagrmt.htm EX-10.1 MIDWESTONE FINANCIAL GROUP, INC. EMPLOYMENT AGREEMENT This Employment Agreement (“Agreement”) is made and entered into as of July 6, 2020 (the “Effective Date”), by and between MidWestOne Financial Group, Inc. (the “Company”) and Len D. Devaisher (“Executive,” and together with the Company, the “Parties”). RECITALS A. The Company desires to employ Exe

July 6, 2020 EX-99.1

MidWestOne Announces New President and Chief Operating Officer IOWA CITY, Iowa, July 06, 2020 (GLOBE NEWSWIRE) -- MidWestOne Financial Group today announced the appointment of Mr. Len Devaisher as President and Chief Len Devaisher Operating Officer f

EX-99.1 3 newpresidentandcooreleas.htm EX-99.1 MidWestOne Announces New President and Chief Operating Officer IOWA CITY, Iowa, July 06, 2020 (GLOBE NEWSWIRE) - MidWestOne Financial Group today announced the appointment of Mr. Len Devaisher as President and Chief Len Devaisher Operating Officer for both MidWestOne Financial Group and MidWestOne Bank effective July 27, 2020. Mr. Devaisher most recen

July 6, 2020 8-K

Regulation FD Disclosure, 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) July 6, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of in

May 8, 2020 10-Q

Quarterly Report - 10-Q

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 FORM 10-Q ☒ 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 to Commission file number 001-35968 MIDWESTONE FINANCIAL

April 30, 2020 8-K

Regulation FD Disclosure, Financial Statements and Exhibits, Results of Operations and Financial Condition, 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 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

April 30, 2020 EX-99.2

COVID-19 RESPONSE AND SUPPLEMENTAL FINANCIAL INFORMATION FIRST QUARTER 2020 APRIL 30, 2020 SUPPORTING OUR EMPLOYEES • Focus on safety: • implemented social distancing throughout our locations • servicing customers via drive-up and closure of bank lob

EX-99.2 3 mofgq12020earningscallpr.htm EX-99.2 COVID-19 RESPONSE AND SUPPLEMENTAL FINANCIAL INFORMATION FIRST QUARTER 2020 APRIL 30, 2020 SUPPORTING OUR EMPLOYEES • Focus on safety: • implemented social distancing throughout our locations • servicing customers via drive-up and closure of bank lobbies • significant expansion of work from home capabilities • increased cleaning services • business tr

April 30, 2020 EX-99.1

MIDWESTONE FINANCIAL GROUP, INC. REPORTS RESULTS FOR THE FIRST QUARTER 2020

Exhibit 99.1 FOR IMMEDIATE RELEASE April 30, 2020 MIDWESTONE FINANCIAL GROUP, INC. REPORTS RESULTS FOR THE FIRST QUARTER 2020 First Quarter Summary1 •Through April 28, 2020, approved approximately $332 million of PPP loans for 2,190 customers. •Net Loss of $2.0 million, or a Loss of $0.12 Per Diluted Share ◦Credit Loss Expense of $21.7 million ◦Pre-tax, Pre-provision Net Revenue2 of $17.6 million,

April 17, 2020 8-K

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) April 16, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Iowa 001-35968 42-1206172 (State or other jurisdiction of incorporation) (Commiss

March 20, 2020 DEFA14A

MOFG / MidWestOne Financial Group, Inc. DEFA14A - - DEFA14A

UNITED STATES SECURITIES AND EXCHANGE COMMISSION WASHINGTON, D.C. 20549 SCHEDULE 14A (RULE 14a-101) INFORMATION REQUIRED IN PROXY STATEMENT SCHEDULE 14A INFORMATION 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

March 20, 2020 8-K

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) March 20, 2020 MidWestOne Financial Group, Inc. (Exact name of registrant as specified in its charter) Commission file number 001-35968 Iowa 42-1206172 (State or other jurisdiction of

March 20, 2020 EX-99.1

102 S. Clinton Street, P.O. Box 1700, Iowa City, Iowa 52244-1700 n 319-356-5800 n Toll-Free 1-800-247-4418 n Fax 319-356-5849

EX-99.1 2 q12020pressreleaseatta.htm EX-99.1 IOWA CITY, IA (March 20, 2020) – MidWestOne Financial Group, Inc. (the “Company”) previously distributed to its shareholders of record as of February 20, 2020, a Notice of Annual Meeting of Shareholders under the Securities and Exchange Commission’s Notice and Access rules, announcing that its 2020 Annual Meeting of Shareholders was scheduled for Thursd

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