Sec Form 3 Filing - Moore Susan M @ MidWestOne Financial Group, Inc. - 2025-04-22

FORM 3 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b).

UNITED STATES SECURITIES AND EXCHANGE COMMISSION Washington, D.C. 20549 STATEMENT OF CHANGES IN BENEFICIAL OWNERSHIP Filed pursuant to Section 16(a) of the Securities Exchange Act of 1934, Section 17(a) of the Public Utility Holding Company Act of 1935 or Section 30(h) of the Investment Company Act of 1940

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1. Name and Address of Reporting Person Moore Susan M 2. Issuer Name and Ticker or Trading Symbol MidWestOne Financial Group, Inc. [ MOFG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) _____ Director _____ 10% Owner X __ Officer (give title below) _____ Other (specify below) SVP, Chief Risk Officer (Last) (First) (Middle) 102 S CLINTON STREET, P.O. BOX 1700 3. Date of Earliest Transaction (MM/DD/YY) 04/22/2025 (Street) IOWA CITY, IA52244-1700 4. If Amendment, Date Original Filed (MM/DD/YY) 6. Individual or Joint/Group Filing (Check Applicable Line) __ X __ Form filed by One Reporting Person _____ Form filed by More than One Reporting Person (City) (State) (Zip)

Table I - Non-Derivative Securities Acquired, Disposed of, or Beneficially Owned 1.Title of Security (Instr. 3) 2. Transaction Date (MM/DD/YY) 2A. Deemed Execution Date, if any (MM/DD/YY) 3. Transaction Code (Instr. 8) 4. Securities Acquired (A) or Disposed of (D) (Instr. 3, 4 and 5) 5. Amount of Securities Beneficially Owned Following Reported Transaction(s) (Instr. 3 and 4) 6. Ownership Form: Direct (D) or Indirect (I) (Instr. 4) 7. Nature of Indirect Beneficial Ownership (Instr. 4) Code V Amount (A) or (D) Price Common Stock 10,214.691 ( 1 ) D Common Stock 1,316.544 I ( 2 ) By ESOP

Table II - Derivative Securities Acquired, Disposed of, or Beneficially Owned ( e.g. , puts, calls, warrants, options, convertible securities) 1. Title of Derivative Security (Instr. 3) 2. Conversion or Exercise Price of Derivative Security 3. Transaction Date (MM/DD/YY) 3A. Deemed Execution Date, if any (MM/DD/YY) 4. Transaction Code (Instr. 8) 5. Number of Derivative Securities Acquired (A) or Disposed of (D) (Instr. 3, 4, and 5) 6. Date Exercisable and Expiration Date (MM/DD/YY) 7. Title and Amount of Underlying Securities (Instr. 3 and 4) 8. Price of Derivative Security (Instr. 5) 9. Number of Derivative Securities Beneficially Owned Following Reported Transaction(s) (Instr. 4) 10. Ownership Form of Derivative Security: Direct (D) or Indirect (I) (Instr. 4) 11. Nature of Indirect Beneficial Ownership (Instr. 4) Code V (A) (D) Date Exercisable Expiration Date Title Amount or Number of Shares

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Moore Susan M 102 S CLINTON STREET, P.O. BOX 1700 IOWA CITY, IA52244-1700 SVP, Chief Risk Officer Signatures Kenneth R. Urmie, Deputy Corporate Secretary, for Susan M. Moore under Power of Attorney dated March 3, 2025 04/23/2025 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Includes 422.913 unvested restricted stock units from February 15, 2023 award, 1,199 unvested restricted stock units from February 15, 2024 award, and 998 unvested restricted stock units from February 15, 2025 award. The restricted stock units vest in equal annual installments over their respective three-year vesting periods. ( 2 )Shares allocated to the reporting person's account from within the MidWestOne Financial Group, Inc. Employee Stock Ownership Plan, as of April 22, 2025.

Remarks: The reporting person was approved as a Section 16 officer at the issuer's annual board meeting held on April 22, 2025.

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.

* If the form is filed by more than one reporting person, see Instruction 4(b)(v).

** Intentional misstatements or omissions of facts constitute Federal Criminal Violations. See 18 U.S.C. 1001 and 15 U.S.C. 78ff(a).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure.
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