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

                                    FORM 10-K

                   Annual Report Pursuant to Section 13 or 15(d)
                      of the Securities Exchange Act of 1934

                             For the fiscal year ended
                                 December 31, 2006

                      Commission file number: 333-131895-01

                       Argent Securities Trust 2006-W4
           (Exact name of issuing entity as specified in its Charter)

                             Argent Securities Inc.
             (Exact name of depositor as specified in its Charter)

                          Ameriquest Mortgage Company
             (Exact name of sponsor as specified in its Charter)

                    Delaware                                77-0599834
           (State or other jurisdiction                  (I.R.S. Employer
           incorporation or organization)              Identification Number)

          1100 Town & Country Road
          Orange, California                             92868
         (Address of principal executive offices)      (Zip Code)

            Registrant's telephone number, including area code:
                               (714) 541-9960

          Securities registered pursuant to Section 12(b) of the Act:
                                     None.

          Securities registered pursuant to Section 12(g) of the Act:
                                     None.

     Indicate by check mark if the registrant is a well-known seasoned
     issuer, as defined in Rule 405 of the Securities Act.  Yes [ ]  No[X]

     Indicate by check mark if the registrant is not required to file
     reports pursuant to Section 13 or Section 15(d) of the Act.  Yes[ ] No[X]

     Indicate by check mark whether the Registrant (1) has filed all reports
     required to be filed by Section 13 or 15(d) of the Securities Exchange
     Act of 1934 during the preceding 12 months (or for such shorter period
     that the Registrant was required to file such reports), and (2) has been
     subject to such filing requirements for the past 90 days.  Yes [X]  No [ ]

     Indicate by check mark if disclosure of delinquent filers pursuant to
     Item 405 of Regulation S-K is not contained herein, and will not be
     contained, to the best of the Registrant's knowledge, in definitive proxy
     or information statements incorporated by reference in Part III of the
     Form 10-K or any amendment to this Form 10-K.         [X]

     Indicate by check mark whether the registrant is a large accelerated
     filer, an accelerated filer, or a non-accelerated filer.  See definition
     of "accelerated filer" in Rule 12b-2 of the Exchange Act.  (Check One):

      Large accelerated filer [  ]  Accelerated Filer [  ]
      Non-accelerated Filer [X]

     Indicate by check mark whether the registrant is a shell company (as
     defined in rule 12b-2 of the Act).  [  ] Yes  [X] No

     State the aggregate market value of the voting and non-voting common
     equity held by non-affiliates computed by reference to the price at
     which the common equity was last sold, or the average bid and asked
     price of such common equity, as of the of the last business day of
     the registrant's most recently completed second fiscal quarter.

     Not Applicable.

     DOCUMENTS INCORPORATED BY REFERENCE

     None.

     PART I

     ITEM 1.  Business.

     Not Applicable.

     ITEM 1A.  Risk Factors.

     Not Applicable.

     ITEM 1B.  Unresolved Staff Comments.

     Not Applicable.

     ITEM 2.  Properties.

     Not Applicable.

     ITEM 3.  Legal Proceedings.

     None.

     ITEM 4.  Submission of Matters to a Vote of Security Holders.

     Not Applicable.

     PART II

     ITEM 5.  Market for Registrant's Common Equity, Related Stockholder
     Matters and Issuer Purchases of Equity Securities.

     Not Applicable.

     ITEM 6.  Selected Financial Data.

     Not Applicable.

     ITEM 7.  Management's Discussion and Analysis of Financial Condition and
     Results of Operations.

     Not Applicable.

     ITEM 7A.  Quantitative and Qualitative Disclosures About Market Risk.

     Not Applicable.

     ITEM 8.  Financial Statements and Supplementary Data.

     Not Applicable.

     ITEM 9.  Changes in and Disagreements with Accountants on Accounting and
     Financial Disclosure.

     Not Applicable.

     ITEM 9A.  Controls and Procedures.

     Not Applicable.

     ITEM 9A(T).  Controls and Procedures.

     Not Applicable.

     ITEM 9B. Other Information.

     None.

     PART III

     ITEM 10.  Directors, Executive Officers and Corporate Governance.

     Not Applicable.

     ITEM 11.  Executive Compensation.

     Not Applicable.

     ITEM 12.  Security Ownership of Certain Beneficial Owners and Management
     and Related Stockholder Matters.

     Not Applicable.

     ITEM 13.  Certain Relationships and Related Transactions, and
     Director Independence.

     Not Applicable.

     ITEM 14.  Principal Accounting Fees and Services.

     Not Applicable.

     PART IV

     Additional Items Required by General Instruction J (2)

     Item 1112(b) of Regulation AB, Significant Obligor Financial Information.
     None.

     Item 1114(b)(2) and Item 1115(b) of Regulation AB , Significant
     Enhancement Provider Information.
     None.

     Item 1117 of Regulation AB, Legal Proceedings.
     None.

     Item 1119 of Regulation AB, Affiliations and Certain Relationships and
     Related Transactions.
     None.

     Item 1122 of Regulation AB, Compliance with Applicable Servicing Criteria.
     See Item 15, Exhibit 33.

     Material exceptions are noted on the Master Servicer's and the
     Sub-Servicer's Annual Report on Assessment of Compliance.

     Item 1123 of Regulation AB, Servicer Compliance Statement.
     See Item 15, Exhibit 35.

     A material exception is noted on the Master Servicer's Annual Statement
     of Compliance and the Sub-Servicer's Annual Statement of Compliance.

     ITEM 15. Exhibits, Financial Statement Schedules.

     (a) List the following documents filed as a part of the report:

         (1) None.

         (2) Not Applicable.

         (3) Exhibit 4 Pooling and Servicing Agreement, dated as of April
             1, 2006, by and among Argent Securities Inc., as Depositor,
             Ameriquest Mortgage Company, as Master Servicer, and Deutsche
             Bank National Trust Company, as Trustee, relating to the Series
             2006-W4 Certificates.  Filed as Exhibit to our Current Report
             on Form 8-K filed on May 10, 2006 and incorporated herein
             by reference.

             Exhibit 31 Section 302 Certification.

             Exhibit 33.1 Master Servicer's & Sub-Servicer's Annual Report
             on Assessment of Compliance for Year End December 31, 2006.

             Exhibit 33.2 Trustee's Annual Report on Assessment of Compliance
             for Year End December 31, 2006.

             Exhibit 33.3 FIS Tax Services' Annual Report on Assessment of
             Compliance for Year End December 31, 2006.

             Exhibit 33.4 American Security Insurance Company, Standard
             Guaranty Insurance Company and Safeco Financial Institution
             Solutions, Inc.'s Annual Report on Assessment of Compliance for
             Year End December 31, 2006.

             Exhibit 34.1 Master Servicer's & Sub-Servicer's Annual Attestation
             Report on Assessment of Compliance with Servicing Criteria for Year
             End December 31, 2006.

             Exhibit 34.2 Trustee's Annual Attestation Report on Assessment of
             Compliance with Servicing Criteria for Year End December 31, 2006.

             Exhibit 34.3 FIS Tax Services' Annual Attestation Report on
             Assessment of Compliance with Servicing Criteria for Year End
             December 31, 2006.

             Exhibit 34.4 American Security Insurance Company, Standard
             Guaranty Insurance Company and Safeco Financial Institution
             Solutions, Inc.'s Annual Attestation Report on Assessment of
             Compliance with Servicing Criteria for Year End December 31, 2006.

             Exhibit 35.1 Master Servicer's Annual Statement of Compliance
             for Year End December 31, 2006.

             Exhibit 35.2 Sub-Servicer's Annual Statement of Compliance for
             Year End December 31, 2006.

     (b) See (a) above.

     (c) Not Applicable.








                                      SIGNATURE

          Pursuant to the requirements of Section 13 or 15(d) of the
          Securities Exchange Act of 1934, the Registrant has duly caused
          this report to be signed on its behalf by the undersigned,
          thereunto duly authorized.


                               By: Argent Securities Inc.
                               as Depositor on behalf of the Registrant

                                      By: /s/ John P. Grazer
                                           John P. Grazer
                                           Chief Financial Officer

     Date: March 26, 2007







     EXHIBIT INDEX

     Exhibit Document

      4 Pooling and Servicing Agreement, dated as of April 1, 2006, by
        and among Argent Securities Inc., as Depositor, Ameriquest
        Mortgage Company, as Master Servicer, and Deutsche Bank National
        Trust Company, as Trustee, relating to the Series 2006-W4
        Certificates.  Filed as Exhibit to our Current Report on Form 8-K
        filed on May 10, 2006 and incorporated herein by reference.

      31   Section 302 Certification.

      33.1 Master Servicer's & Sub-Servicer's Annual Report on Assessment
           of Compliance for Year End December 31, 2006.

      33.2 Trustee's Annual Report on Assessment of Compliance for Year
           End December 31, 2006.

      33.3 FIS Tax Services' Annual Report on Assessment of Compliance for
           Year End December 31, 2006.

      33.4 American Security Insurance Company, Standard Guaranty Insurance
           Company and Safeco Financial Institution Solutions, Inc.'s Annual
           Report on Assessment of Compliance for Year End December 31, 2006.

      34.1 Master Servicer's & Sub-Servicer's Annual Attestation Report on
           Assessment of Compliance with Servicing Criteria for Year End
           December 31, 2006.

      34.2 Trustee's Annual Attestation Report on Assessment of Compliance
           with Servicing Criteria for Year End December 31, 2006.

      34.3 FIS Tax Services' Annual Attestation Report on Assessment of
           Compliance with Servicing Criteria for Year End December 31, 2006.

      34.4 American Security Insurance Company, Standard Guaranty Insurance
           Company and Safeco Financial Institution Solutions, Inc.'s Annual
           Attestation Report on Assessment of Compliance with Servicing
           Criteria for Year End December 31, 2006.

      35.1 Master Servicer's Annual Statement of Compliance for Year End
           December 31, 2006.

      35.2 Sub-Servicer's Annual Statement of Compliance for Year End
           December 31, 2006.