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                                  UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D. C. 20549
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                                    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):     December 18, 2007
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                                McGRATH RENTCORP
             (Exact name of registrant as specified in its Charter)


                                   California
                 (State or other jurisdiction of incorporation)

            0-13292                                      94-2579843
   (Commission File Number)                 (I.R.S. Employee Identification No.)


                 5700 Las Positas Road, Livermore, CA 94551-7800
                    (Address of principal executive offices)


                                 (925) 606-9200
              (Registrant's Telephone Number, Including Area Code)


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Check the appropriate box below if the Form 8-K filing is intended to
simultaneously satisfy the filing obligation of the registrant under any of the
following provisions (see General Instruction A.2. below):


     |_| Written communications pursuant to Rule 425 under the Securities Act
         (17 CFR 230.425)

     |_| Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17
         CFR 240.14a-12)

     |_| Pre-commencement communications pursuant to Rule 14d-2(b) under the
         Exchange Act (17 CFR 240.14d-2(b))

     |_| Pre-commencement communications pursuant to Rule 13e-4(c) under the
         Exchange Act (17 CFR 240.13e-4(c))


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ITEM 8.01 OTHER EVENTS On December 18, 2007, McGrath RentCorp (the "Company") announced via press release that depending on prevailing market conditions and other factors it may continue to repurchase shares of common stock under its previously announced stock repurchase authorization in open market purchases during the Company's current "blackout" period, which began on December 15, 2007 and ends on February 25, 2008. Since September 30, 2007 the Company has repurchased 517,278 shares of common stock. As of December 18, 2007, 1,459,989 shares of common stock remain authorized for repurchase. There can be no assurance that any authorized shares will be repurchased and the Company may determine to discontinue repurchases at any time. A copy of the Company's press release is attached hereto as Exhibit 99.1. Item 9.01 Financial Statements and Exhibits. (d) Exhibits. Exhibit No. Description ----------- ----------- 99.1 Press Release of McGrath RentCorp, dated December 18, 2007. 2

SIGNATURES Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized. McGRATH RENTCORP Dated: December 18, 2007 By: /s/ Keith E. Pratt --------------------------------- Keith E. Pratt Vice President and Chief Financial Officer 3

                                                                    Exhibit 99.1

            McGrath RentCorp to Continue Share Repurchases


    LIVERMORE, Calif.--(BUSINESS WIRE)--Dec. 18, 2007--McGrath
RentCorp (NASDAQ:MGRC) today announced that depending on prevailing
market conditions and other factors it may continue to repurchase
shares of common stock under its previously announced stock repurchase
authorization in open market purchases during the Company's current
"blackout" period, which began on December 15, 2007 and ends on
February 25, 2008. Since September 30, 2007 the Company has
repurchased 517,278 shares of common stock. As of December 18, 2007,
1,459,989 shares of common stock remain authorized for repurchase.
There can be no assurance that any authorized shares will be
repurchased and the Company may determine to discontinue repurchases
at any time.

    About McGrath RentCorp

    Founded in 1979, the Company, under the trade name Mobile Modular
Management Corporation, rents and sells modular buildings to fulfill
customers' temporary and permanent space needs in California, Texas
and Florida. Mobile Modular believes it is the largest provider of
relocatable classrooms for rental to school districts for grades K -
12 in California. The Company's TRS-RenTelco division rents and sells
electronic test equipment and is one of the leading providers of
general purpose and communications test equipment in North America.

    CONTACT: McGrath RentCorp
             Keith E. Pratt, 925-606-9200
             Chief Financial Officer