UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 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)      OCTOBER 31, 2005
                                                     ---------------------------

                                W. R. GRACE & CO.
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             (Exact Name of Registrant as Specified in Its Charter)

                                    DELAWARE
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                 (State or Other Jurisdiction of Incorporation)

                    1-13953                              65-0773649
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           (Commission File Number)           (IRS Employer Identification No.)

                     7500 GRACE DRIVE
                    COLUMBIA, MARYLAND                               21044
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         (Address of Principal Executive Offices)                 (Zip Code)

                                 (410) 531-4000
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              (Registrant's Telephone Number, Including Area Code)


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          (Former Name or Former Address, if Changed Since Last Report)

     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))


                               W. R. GRACE & CO.

                                    FORM 8-K
                                 CURRENT REPORT




Item 2.02.        Results of Operations and Financial Condition.

         On October 31, 2005, W. R. Grace & Co. issued a press release
announcing its financial results for the quarter and nine months ended September
30, 2005. A copy of the press release is attached as Exhibit 99.1 to this Report
and is incorporated herein by reference. This information shall not be deemed
"filed" for purposes of Section 18 of the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), or incorporated by reference in any filing under
the Securities Act of 1933, as amended, or the Exchange Act, except as shall be
expressly set forth by specific reference in such a filing.

Item 9.01.        Financial Statements and Exhibits

         (c)  Exhibits

               99.1   Press release issued by W. R. Grace & Co. announcing
                      financial results for the quarter and nine months ended
                      September 30, 2005.



                                   SIGNATURES

         Pursuant to the requirements of the Securities Exchange Act of 1934,
the Registrant has duly caused this report to be signed by the undersigned,
thereunto duly authorized.

                                                        W. R. GRACE & CO.
                                                       -------------------------
                                                           (Registrant)



                                                    By  /s/ Mark A. Shelnitz
                                                       -------------------------
                                                            Mark A. Shelnitz
                                                               Secretary

Dated:  November 1, 2005