FORM 4 Check this box if no longer subject to Section 16. Form 4 or Form 5 obligations may continue. See Instruction 1(b). Check this box to indicate that a transaction was made pursuant to a contract, instruction or written plan that is intended to satisfy the affirmative defense conditions of Rule 10b5-1(c). See Instruction 10.

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

OMB APPROVAL OMB Number: 3235-0287 Estimated average burden hours per response... 0.5

(Print or Type Responses)

1. Name and Address of Reporting Person * Sims Gary L 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 Credit Officer (Last) (First) (Middle) 102 S. CLINTON STREET, P.O. BOX 1700 3. Date of Earliest Transaction (Month/Day/Year) 01/15/2026 (Street) IOWA CITY, IA 52244-1700 4. If Amendment, Date Original Filed (Month/Day/Year) 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 (Month/Day/Year) 2A. Deemed Execution Date, if any (Month/Day/Year) 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 01/15/2026 A(1) 1,066 A $ 0 17,866.922(2) D Common Stock 1,811.984(3) I By 401(k)(4)

Reminder: Report on a separate line for each class of securities beneficially owned directly or indirectly.
	Persons who respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB control number.		SEC 1474 (9-02)

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 (Month/Day/Year)

3A. Deemed Execution Date, if any (Month/Day/Year)

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 (Month/Day/Year)

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
Sims Gary L 102 S. CLINTON STREET P.O. BOX 1700 IOWA CITY, IA 52244-1700			SVP & Chief Credit Officer

Signatures

Kenneth R. Urmie, Deputy Corporate Secretary, for Gary L. Sims under Power of Attorney dated April 21, 2023		01/16/2026
**Signature of Reporting Person		Date

Explanation of Responses:

*	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).
(1)	Represents restricted stock units acquired pursuant to a grant of time-based restricted stock units which vest on January 15, 2027, or on the legal close date of the merger announced October 23, 2025, of MidWestOne Financial Group, Inc. with and into Nicolet Bankshares, Inc., with Nicolet Bankshares, Inc. as the surviving corporation, whichever comes first.
(2)	Includes 17.006 Dividend Equivalents credited to unvested time-based RSUs in lieu of a cash dividend payment since the reporting person's last required Form filing. Each whole Dividend Equivalent is the economic equivalent of one share of MidWestOne Financial Group, Inc. common stock.
(3)	Shares held in the reporting person's account from within the MidWestOne Financial Group, Inc. 401(k) Plan, as of December 31, 2025. Reported shares have increased by 281.004 shares since the date of the reporting person's previous Form filing due to allocations to his account.
(4)	The MidWestOne Financial Group, Inc. Employee Stock Ownership Plan (formerly the "ESOP") was merged into the MidWestOne Financial Group, Inc. 401(k) Plan (the "401(k)") on May 7, 2025. Shares from the reporting person's ESOP account were merged into the reporting person's account in the 401(k).

Note: File three copies of this Form, one of which must be manually signed. If space is insufficient, see Instruction 6 for procedure. Potential persons who are to respond to the collection of information contained in this form are not required to respond unless the form displays a currently valid OMB number.