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

                                   ----------

                                  SCHEDULE 13G

                    Under the Securities Exchange Act of 1934

                               (Amendment No. 6)*

                                   ----------

                             RCM Technologies, Inc.
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                                (Name of Issuer)

                                  Common Stock
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                         (Title of Class of Securities)

                                    749360400
                              ---------------------
                                 (CUSIP Number)

                                December 31, 2003
             -------------------------------------------------------
             (Date of Event Which Requires Filing of this Statement)

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

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

                                   ----------

*The remainder of this cover page shall be filled out for a reporting person's
initial filing on this form with respect to the subject class of securities, and
for any subsequent amendment containing information which would alter the
disclosures provided in a prior cover page.

The information required in the remainder of this cover page shall not be deemed
to be "filed" for the purpose of Section 18 of the Securities Exchange Act of
1934 ("Act") or otherwise subject to the liabilities of that section of the Act
but shall be subject to all other provisions of the Act (however, see the
Notes).

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                               Page 1 of 11 Pages



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CUSIP No. 749360400                    13G                    Page 2 of 11 Pages
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1    NAME OF REPORTING PERSON
     S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          Columbia Wanger Asset Management, L.P. 36-3820584

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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

          Delaware

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NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
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5    SOLE VOTING POWER

          None

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6    SHARED VOTING POWER

          2,169,000

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7    SOLE DISPOSITIVE POWER

          None

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8    SHARED DISPOSITIVE POWER

          2,169,000

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9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          2,169,000

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10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          Not Applicable                                                [_]

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11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          20.4 %

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12   TYPE OF REPORTING PERSON*

          IA

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-------------------                                           ------------------
CUSIP No. 749360400                    13G                    Page 3 of 11 Pages
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1    NAME OF REPORTING PERSON
     S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          WAM Acquisition GP, Inc.

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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

--------------------------------------------------------------------------------
4    CITIZENSHIP OR PLACE OF ORGANIZATION

          Delaware

--------------------------------------------------------------------------------
     NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
--------------------------------------------------------------------------------
5    SOLE VOTING POWER

          None

--------------------------------------------------------------------------------
6    SHARED VOTING POWER

          2,169,000

--------------------------------------------------------------------------------
7    SOLE DISPOSITIVE POWER

          None

--------------------------------------------------------------------------------
8    SHARED DISPOSITIVE POWER

          2,169,000

--------------------------------------------------------------------------------
9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          2,169,000

--------------------------------------------------------------------------------
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          Not Applicable                                                [_]

--------------------------------------------------------------------------------
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          20.4 %

--------------------------------------------------------------------------------
12   TYPE OF REPORTING PERSON*

          CO

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-------------------                                           ------------------
CUSIP No. 749360400                    13G                    Page 4 of 11 Pages
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1    NAME OF REPORTING PERSON
     S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          Columbia Acorn Trust

--------------------------------------------------------------------------------
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

          Massachusetts

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NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
--------------------------------------------------------------------------------
5    SOLE VOTING POWER

          None

--------------------------------------------------------------------------------
6    SHARED VOTING POWER

          786,000

--------------------------------------------------------------------------------
7    SOLE DISPOSITIVE POWER

          None

--------------------------------------------------------------------------------
8    SHARED DISPOSITIVE POWER

          786,000

--------------------------------------------------------------------------------
9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          786,000

--------------------------------------------------------------------------------
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          Not Applicable                                                [_]

--------------------------------------------------------------------------------
11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          7.4 %

--------------------------------------------------------------------------------
12   TYPE OF REPORTING PERSON*

          IV

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-------------------                                           ------------------
CUSIP No. 749360400                    13G                    Page 5 of 11 Pages
-------------------                                           ------------------

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1    NAME OF REPORTING PERSON
     S.S. or I.R.S. IDENTIFICATION NO. OF ABOVE PERSON

          Wanger Advisors Trust

--------------------------------------------------------------------------------
2    CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*

          Not Applicable                                            (a) [_]
                                                                    (b) [_]

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3    SEC USE ONLY

--------------------------------------------------------------------------------
4    CITIZENSHIP OR PLACE OF ORGANIZATION

          Massachusetts

--------------------------------------------------------------------------------
NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH
--------------------------------------------------------------------------------
5    SOLE VOTING POWER

          None

--------------------------------------------------------------------------------
6    SHARED VOTING POWER

          753,000

--------------------------------------------------------------------------------
7    SOLE DISPOSITIVE POWER

          None

--------------------------------------------------------------------------------
8    SHARED DISPOSITIVE POWER

          753,000

--------------------------------------------------------------------------------
9    AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

          753,000

--------------------------------------------------------------------------------
10   CHECK BOX IF THE AGGREGATE AMOUNT IN ROW (9) EXCLUDES CERTAIN SHARES*

          Not Applicable                                                [_]

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11   PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

          7.1 %

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12   TYPE OF REPORTING PERSON*

          IV

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                      *SEE INSTRUCTION BEFORE FILLING OUT!



Item 1(a)  Name of Issuer:

                 RCM Technologies, Inc.

Item 1(b)  Address of Issuer's Principal Executive Offices:

                 2500 McClellan Avenue, Suite 350
                 Pennsauken, New Jersey 08109-4613

Item 2(a)  Name of Person Filing:

                 Columbia Wanger Asset Management, L.P. ("WAM")
                 WAM Acquisition GP, Inc., the general partner of WAM ("WAM GP")
                 Columbia Acorn Trust ("Acorn")
                 Wanger Advisors Trust ("WAT")

Item 2(b)  Address of Principal Business Office:

                 WAM, WAM GP, Acorn and WAT are all located at:

                 227 West Monroe Street, Suite 3000
                 Chicago, Illinois 60606

Item 2(c)  Citizenship:

                 WAM is a Delaware limited partnership; WAM GP is a Delaware
                 corporation; Acorn is a Massachusetts business trust; and WAT
                 is a Massachusetts business trust.

Item 2(d)  Title of Class of Securities:

                 Common Stock

Item 2(e)  CUSIP Number:

                 749360400

Item 3     Type of Person:

                 (d)  Acorn is an Investment Company under section 8 of the
                      Investment Company Act.

                 (d)  WAT is an Investment Company under section 8 of the
                      Investment Company Act.

                 (e)  WAM is an Investment Adviser registered under section 203
                      of the Investment Advisers Act of 1940; WAM GP is the
                      General Partner of the Investment Adviser.

                               Page 6 of 11 pages



Item 4     Ownership (at December 31, 2003):

                 (a)  Amount owned "beneficially" within the meaning of rule
                      13d-3:

                      2,169,000

                 (b)  Percent of class:

                      20.4 % (based on 10,647,247 shares outstanding as of
                      November 5, 2003, based on Form 10-Q filed on November 6,
                      2003).

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

                             (i) sole power to vote or to direct the vote: none
                            (ii) shared power to vote or to direct the vote:
                                 2,169,000
                           (iii) sole power to dispose or to direct the
                                 disposition of: none
                            (iv) shared power to dispose or to direct
                                 disposition of: 2,169,000

Item 5     Ownership of Five Percent or Less of a Class:

                 Not Applicable

Item 6     Ownership of More than Five Percent on Behalf of Another Person:

                 The shares reported herein have been acquired on behalf of
                 discretionary clients of WAM, including Acorn and WAT. Persons
                 other than WAM and WAM GP are entitled to receive all dividends
                 from, and proceeds from the sale of, those shares. Acorn and
                 WAT are the only such persons known to be entitled to all
                 dividends from, and all proceeds from the sale of, shares
                 reported herein to the extent of more than 5% of the class.

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

                               Page 7 of 11 Pages



Item 10    Certification:

                 By signing below I certify that, to the best of my knowledge
           and belief, the securities referred to above were acquired and are
           held in the ordinary course of business and were not acquired and are
           not held for the purpose of or with the effect of changing or
           influencing the control of the issuer of the securities and were not
           acquired and are not held in connection with or as a participant in
           any transaction having that purpose or effect.

                               Page 8 of 11 Pages



                                    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 10, 2004

               The undersigned corporation, on the date above written, agrees
               and consents to the joint filing on its behalf of this Schedule
               13G in connection with its beneficial ownership of the security
               reported herein.


                                        WAM Acquisition GP, Inc.
                                         for itself and as general partner of
                                         COLUMBIA WANGER ASSET MANAGEMENT, L.P.


                                        By: /s/ Bruce H. Lauer
                                            ------------------------------------
                                                Bruce H. Lauer
                                                Senior Vice President and
                                                Secretary


               The undersigned trust, on the date above written, agrees and
               consents to the joint filing on its behalf of this Schedule 13G
               in connection with its beneficial ownership of the security
               reported herein.


                                        COLUMBIA ACORN TRUST


                                        By: /s/ Bruce H. Lauer
                                            ------------------------------------
                                                Bruce H. Lauer
                                                Vice President, Treasurer and
                                                Secretary


               The undersigned trust, on the date above written, agrees and
               consents to the joint filing on its behalf of this Schedule 13G
               in connection with its beneficial ownership of the security
               reported herein.


                                        WANGER ADVISORS TRUST


                                        By: /s/ Bruce H. Lauer
                                            ------------------------------------
                                                Bruce H. Lauer
                                                Vice President, Treasurer and
                                                Secretary

                               Page 9 of 11 Pages



                                 Exhibit Index
                                 -------------

Exhibit 1           Joint Filing Agreement dated as of February 10, 2004 by
                    and among Columbia Wanger Asset Management, L.P., WAM
                    Acquisition GP, Inc., Columbia Acorn Trust and Wanger
                    Advisors Trust.

                              Page 10 of 11 Pages



                                                                       EXHIBIT 1

                             JOINT FILING AGREEMENT

     The undersigned hereby agree to the joint filing of the Schedule 13G to
which this Agreement is attached.

               Dated: February 10, 2004


                                        WAM Acquisition GP, Inc.
                                         for itself and as general partner of
                                         COLUMBIA WANGER ASSET MANAGEMENT, L.P.


                                        By: /s/ Bruce H. Lauer
                                            ------------------------------------
                                                Bruce H. Lauer
                                                Senior Vice President and
                                                Secretary


                                        COLUMBIA ACORN TRUST


                                        By: /s/ Bruce H. Lauer
                                            ------------------------------------
                                                Bruce H. Lauer
                                                Vice President, Treasurer and
                                                Secretary


                                        WANGER ADVISORS TRUST


                                        By: /s/ Bruce H. Lauer
                                            ------------------------------------
                                                Bruce H. Lauer
                                                Vice President, Treasurer and
                                                Secretary


                              Page 11 of 11 Pages