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 9, 2003


Commission File Number:                              0-24630



                           MAHASKA INVESTMENT COMPANY
                           --------------------------
             (Exact name of Registrant as specified in its charter)

           Iowa                                       42-1003699
           ----                                       ----------
  (State of Incorporation)               (I.R.S. Employer Identification No.)


                   222 First Avenue East, Oskaloosa Iowa 52577
                    (Address of Principal Executive Offices)

Registrant's telephone number:                       (641) 673-8448





Item 9. Regulation FD Disclosure

     On May 9, 2003, Mahaska Investment Company (the "Registrant") officially
changed its name to MidWest One Financial Group, Inc. The Registrant's 2003
Proxy Statement contained a proposal to shareholders to change the name of the
organization to MidWest One Financial Group, Inc. At the annual meeting of
shareholders' held on April 30, 2003, the proposal to change the name of the
Registrant was approved by a vote of 3,162,849 shares in favor, 192,491 voting
against, and 90,733 shares abstaining. The Registrant filed an amendment to its
articles of incorporation with the Iowa Secretary of State to change the name of
the company effective May 9, 2003.

     The information contained in this document and other financial reports may
contain forward-looking statements about the Registrant's growth and acquisition
strategies, new products and services, and future financial performance.
Forward-looking statements are encouraged by the Private Securities Litigation
Reform Act of 1995. Such forward-looking information is based upon certain
underlying assumptions, risks and uncertainties. Because of the possibility of
change in the underlying assumptions, actual results could differ materially
from these forward-looking statements. Risks and uncertainties that may affect
future results include: pricing pressures on loans and deposits, actions of bank
and non-bank competitors, changes in local and national economic conditions,
changes in regulatory requirements, actions of the Federal Reserve Board, and
customer's acceptance of the Registrant's products and services. The Registrant
undertakes no obligation to revise or update such statements to reflect current
events or circumstances after the date hereof or to reflect the occurrence of
unanticipated events.

                                   SIGNATURES

     Pursuant to the requirements of the Securities Exchange Act of 1934,
Mahaska Investment Company has caused this Report to be signed on its behalf by
the undersigned hereunto fully authorized.

Mahaska Investment Company
- --------------------------
(Registrant)


May 23, 2003                                   By: /s/David A. Meinert
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Dated                                          David A. Meinert
                                               Executive Vice President and CFO