UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549


                                    FORM N-PX

                     ANNUAL REPORT OF PROXY VOTING RECORD OF
                    REGISTERED MANAGEMENT INVESTMENT COMPANY


                  Investment Company Act File Number 811-07599

                           DOMINI INSTITUTIONAL TRUST
               (Exact Name of Registrant as Specified in Charter)

                536 Broadway, 7th Floor, New York, New York 10012
                    (Address of Principal Executive Offices)


                                  Amy L. Domini
                          Domini Social Investments LLC
                             536 Broadway, 7th Floor
                            New York, New York 10012
                     (Name and Address of Agent for Service)


        Registrant's Telephone Number, including Area Code: 212-217-1100

                        Date of Fiscal Year End: July 31

                     Date of Reporting Period: June 30, 2006




ITEM 1.    PROXY VOTING RECORD.

Domini Institutional Social Equity Fund, the sole series of the registrant, is a
"feeder fund" and invests its assets in Domini Social Equity Trust (f/k/a Domini
Social Index Trust), a series of Domini Social Trust (f/k/a Domini Social Index
Portfolio). For the proxy voting record of Domini Social Equity Trust for the
period covered by the report, please refer to Form N-PX filed on August 29,
2006, for Domini Social Trust (Investment Company Act File Number: 811-05824;
CIK Number: 0000851681).



                                   SIGNATURES


Pursuant to the requirements of the Investment Company Act of 1940, the
registrant has duly caused this report to be signed on its behalf by the
undersigned, thereunto duly authorized.

DOMINI INSTITUTIONAL TRUST

By: /s/ Amy L. Domini
    ----------------------------------------
     Amy L. Domini
     President (Principal Executive Officer)

Date: August 29, 2006