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  CUSIP No. 11442E 10 2               13G             Page 1 of 4 Pages
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                                  SCHEDULE 13G

                                 (RULE 13d-102)

           Information to be Included in Statements Filed Pursuant to
             Rule 13d-1(b), (c) and (d) and Amendments Thereto Filed
                             Pursuant to Rule 13d-2.

                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

                    Under the Securities Exchange Act of 1934
                               (Amendment No. 7)


                           Brooks-PRI Automation, Inc.
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                                (Name of Issuer)


                     Common Stock, Par Value $0.01 Per Share
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                         (Title or Class of Securities)


                                   11442E 10 2
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                                 (CUSIP Number)


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               (Date of Event Which Requires Filing of this Statement)



      Check the appropriate box to designate the rule pursuant to which this
Schedule is filed:

      [ ]   Rule 13d-1(b)
      [ ]   Rule 13d-1(c)
      [X]   Rule 13d-1(d)

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  CUSIP No. 11442E 10 2               13G             Page 2 of 4 Pages
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--------------------------------------------------------------------------------
1.    Name of Reporting Persons/I.R.S. Identification Nos. of Above Persons
      (Entities Only)

      Robert J. Therrien
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2.    Check The Appropriate Box If A Member Of A Group

      Not Applicable.
                                                                    (a) [ ]
                                                                    (b) [ ]
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3.    SEC USE ONLY


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4.    Citizenship or Place of Organization

      United States of America
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                         5.    Sole Voting Power

                               1,271,192
                         -------------------------------------------------------
       Number of         6.    Shared Voting Power
  Shares Beneficially
        Owned by               -0-
          Each           -------------------------------------------------------
       Reporting         7.    Sole Dispositive Power
      Person With
                               1,271,192
                         -------------------------------------------------------
                         8.    Shared Dispositive Power

                               -0-
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9.    Aggregate Amount Beneficially Owned by Each Reporting Person

      1,271,192
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10.   Check Box if the Aggregate Amount In Row (9) Excludes Certain Shares (See
      Instructions)                                             [ ]

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11.   Percent Of Class Represented By Amount In Row 9

      3.5%
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12.   Type of Reporting Person (See Instructions)

      IN
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  CUSIP No. 11442E 10 2               13G             Page 3 of 4 Pages
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ITEM 1(a)  Name of Issuer:

           Brooks-PRI Automation, Inc.
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ITEM 1(b)  Address of Issuer's Principal Executive Offices:

           15 Elizabeth Drive, Chelmsford, Massachusetts 01824
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ITEM 2(a)  Name of Person Filing:

           Robert J. Therrien
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ITEM 2(b)  Address of Principal Business Office or, if none, Residence:

           15 Elizabeth Drive, Chelmsford, Massachusetts 01824
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ITEM 2(c)  Citizenship:

           United States of America
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ITEM 2(d)  Title of Class of Securities:

           Common Stock, par value $0.01
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ITEM 2(e). CUSIP Number:

           11442E 10 2
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ITEM 3.    IF THIS STATEMENT IS FILED PURSUANT TO RULE 13d-1(b), OR 13d-2(b) OR
           (c), CHECK WHETHER THE PERSON FILING IS A:

           Not applicable.
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ITEM 4.    OWNERSHIP:   See also, Items 5 through 9 and 11 of the cover page.

           (a)   Amount Beneficially Owned: 1,271,192 shares, including 263,219
                 shares issuable pursuant to options exercisable within 60 days
                 of December 31, 2002. Excludes certain shares held by certain
                 children and grandchildren of the Reporting Person, as to which
                 the Reporting Person disclaims beneficial ownership.

           (b)   Percent of Class:  3.5%

           (c)   Number of Shares as to which such person has:

                 (i)   Sole power to vote or to direct the vote: 1,271,192

                 (ii)  Shared power to vote or to direct the vote: -0-

                 (iii) Sole power to dispose or to direct the disposition of:
                       1,271,192

                 (iv)  Shared power to dispose or to direct the disposition of:
                       -0-

ITEM 5.    OWNERSHIP OF FIVE PERCENT OR LESS OF A CLASS.

           The reporting person has ceased to be the beneficial owner of more
           than five percent of the class of securities.

ITEM 6.    OWNERSHIP OF MORE THAN FIVE PERCENT ON BEHALF OF ANOTHER PERSON.

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  CUSIP No. 11442E 10 2               13G             Page 4 of 4 Pages
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           Not applicable.

ITEM 7.    IDENTIFICATION AND CLASSIFICATION OF THE SUBSIDIARY WHICH ACQUIRED
           THE SECURITY BEING REPORTED ON BY THE PARENT HOLDING COMPANY.

           Not applicable.

ITEM 8.    IDENTIFICATION AND CLASSIFICATION OF MEMBERS OF THE GROUP.

           Not applicable.

ITEM 9.    NOTICE OF DISSOLUTION OF GROUP.

           Not applicable.

ITEM 10.   CERTIFICATION.

           Not applicable.

                                    SIGNATURE

      After reasonable inquiry and to the best of my knowledge and belief, I
certify that the information set forth in this statement is true, complete and
correct.

                              Date:  February 12, 2003



                              /s/ Robert J. Therrien
                              --------------------------------------------------
                              ROBERT J. THERRIEN