Sec Form 4 Filing - Kniff-McCulla Barbara J @ MidWestOne Financial Group, Inc. - 2015-04-27

FORM 4 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 Kniff-McCulla Barbara J 2. Issuer Name and Ticker or Trading Symbol MidWestOne Financial Group, Inc. [ MOFG] 5. Relationship of Reporting Person(s) to Issuer (Check all applicable) X __ Director _____ 10% Owner _____ Officer (give title below) _____ Other (specify below) (Last) (First) (Middle) 102 S. CLINTON STREET, P.O. BOX 1700 3. Date of Earliest Transaction (MM/DD/YY) 04/27/2015 (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 750 ( 1 ) D Common Stock 04/27/2015 M 769 A $ 18.49 4,677 ( 2 ) I Held in revocable grantor trust

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 Stock Option (Right to Buy) $ 18.49 0 4/27/2015 M 769 ( 3 ) 04/29/2015 Common Stock 769 $ 0 0 D Stock Option (Right to Buy) $ 20.08 ( 3 ) 04/28/2016 Common Stock 950 950 D Stock Option (Right to Buy) $ 18.06 ( 3 ) 05/01/2016( 4 ) Common Stock 950 950 D

Reporting Owners Reporting Owner Name / Address Relationships Director 10% Owner Officer Other Kniff-McCulla Barbara J 102 S. CLINTON STREET P.O. BOX 1700 IOWA CITY, IA52244-1700 X Signatures Kenneth R. Urmie, under Power of Attorney dated December 15, 2010 04/27/2015 Signature of Reporting Person Date

Explanation of Responses:

( 1 )Shares reduced by 65 shares due to lapse of restricted period/issuance of restricted stock unit shares which moved from direct holding and into indirect holding of reporting person's revocable grantor trust. ( 2 )Shares increased by 65 shares due to lapse of restricted period/issuance of RSU shares which moved from direct holding and into indirect holding of reporting person's revocable grantor trust. ( 3 )Fully vested. ( 4 )Option expires May 1, 2016 or 1 year from closing of Merger with Central Bancshares, Inc., whichever is later. In the event that the Merger does not close, the option will expire April 26, 2017 as originally granted.

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).

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