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

                                    Form 13F

                               Form 13F COVER PAGE

Report for the Calendar Year or Quarter Ended:  March 31, 2008

Check here if Amendment [    ]; Amendment Number: __________
         This Amendment (Check only one.):  [   ] is a restatement.
                                            [   ] adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name:     Roark, Rearden & Hamot, LLC*
Address:  420 Boylston Street
          Boston, MA 02116

Form 13F File Number:  28-11736

The institutional investment manager filing this report and the person by whom
it is signed hereby represent that the person signing the report is authorized
to submit it, that all information contained herein is true, correct and
complete, and that it is understood that all required items, statements,
schedules, lists, and tables, are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:     Seth W. Hamot
Title:    Managing member
Phone:    (617) 595-4400

Signature, Place, and Date of Signing:

/ Seth W. Hamot            Boston, MA                          April 8, 2008
------------------         -----------------                   --------------

* Roark, Rearden & Hamot, LLC is the general partner of Costa Brava Partnership
III, L.P. Seth W. Hamot is the managing member of Roark, Rearden & Hamot, LLC.

Report Type (Check only one.):

[   ]    13F HOLDINGS REPORT.  (Check here if all holdings of this reporting
         manager are reported in this report.)

[ X ]    13F NOTICE. (Check here if no holdings reported are in this report,
         and all holdings are reported by other reporting manager(s).)

[   ]    13F COMBINATION REPORT. (Check here if a portion of the holdings for
         this reporting manager are reported in this report and a portion are
         reported by other reporting manager(s).)

List of Other Managers Reporting for this Manager:

Form 13F File Number           Name

28-11722                       Roark, Rearden & Hamot Capital Management, LLC