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                       SECURITIES AND EXCHANGE COMMISSION
                             WASHINGTON, D.C. 20549

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

                                  FORM 10-K/A

(MARK ONE)

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<C>        <S>
   /X/     ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
           SECURITIES EXCHANGE ACT OF 1934
</TABLE>

                  FOR THE FISCAL YEAR ENDED DECEMBER 31, 1999
                                       OR

<TABLE>
<C>        <S>
   / /     TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE
           SECURITIES EXCHANGE ACT OF 1934
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        FOR THE TRANSITION PERIOD FROM ______________ TO ______________

                        COMMISSION FILE NUMBER: 1-14208

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

                                 MOSSIMO, INC.

             (Exact name of registrant as specified in its charter)

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<S>                               <C>
         DELAWARE                              33-0684524
     (State or other                    (I.R.S. Employer ID No.)
     jurisdiction of
     incorporation or
      organization)

2450 WHITE ROAD 2ND FLOOR                      92614-6250
    IRVINE, CALIFORNIA                         (zip code)
  (Address of principal
    executive offices)
</TABLE>

                                 (949) 797-0200
              (Registrant's telephone number, including area code)

Securities registered pursuant to Section 12(b) of the Act: Common stock, par
value $.001 per share

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

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 registrant's knowledge, in definitive proxy or information statements
incorporated by reference and Part III of this Form 10-K or any amendment to
this Form 10-K. / /

The aggregate market value of the voting stock held by non-affiliates of the
registrant at April 4, 2000 was approximately $12,219,000.

The registrant had 15,080,042 shares of common stock, par value $.001 per share,
outstanding at April 4, 2000.

Documents Incorporated by Reference (To the Extent Indicated Herein): Portions
of the Definitive Proxy Statement for the 2000 Annual Meeting (in Part III)

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(2) Exhibits: The Exhibits listed on the accompanying Index to Exhibits
    immediately following the financial statement schedules are filed as part
    of, or incorporated by reference into, this Report.

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<CAPTION>
EXHIBIT NO.                                     DESCRIPTION
-----------                                     -----------
<S>                     <C>
 3.1                    Certificate of Incorporation of Registrant(1)

 3.2                    Bylaws of the Registrant(1)

 4.1                    Specimen certificate of shares of Common Stock of the
                        Registrant(1)

 4.2                    Stockholders Agreement, dated as of November 30, 1998,
                        between the Registrant, Mossimo Giannulli and Edwin H.
                        Lewis(7)

 10.1                   Registrant's 1995 Stock Plan(1)

 10.2                   Registrant's 1995 Directors Stock Option Plan(1)

 10.3                   Employment Agreement, dated January 1, 1996, by and between
                        the Registrant and Mossimo Giannulli(1)

 10.4                   Factoring Agreement, dated January 2, 1990, by and between
                        the Registrant and The CIT Group, as amended to date(1)

 10.4.1                 Letter Amendment to Factoring Agreement dated June 16,
                        1995(1)

 10.4.2                 Letter Amendment to Factoring Agreement dated February 1,
                        1996(1)

 10.4.3                 Letter Amendment to Factoring Agreement dated November 1,
                        1996(2)

 10.4.4                 Letter Amendment to Factoring Agreement dated May 21,
                        1998(5)

 10.4.5                 Letter Amendment to Factoring Agreement dated March 22,
                        1999(8)

 10.5                   Form of Indemnification Agreement between the Registrant and
                        its directors and officers(1)

 10.6                   Lease, dated May 3, 1996, between the Registrant and The
                        Irvine Company(3)

 10.6.1                 Amendment to the lease agreement with The Irvine Company,
                        dated July 10, 1998(5)

 10.7                   Financing Agreement, dated July 15, 1997, by and between the
                        Registrant and The CIT Group/Commercial Services, Inc.(4)

 10.7.1                 Amendment to the Financing Agreement dated April 1, 1998(5)

 10.7.2                 Amendment to the Financing Agreement dated March 22, 1999(8)

 10.8                   Lease, dated August 19, 1998, between the Registrant and
                        Cornucopia, Inc.(6)

 10.9                   Lease, dated July 20, 1998, between the Registrant and 3002
                        Pennsylvania Avenue, LLC(6)

 10.10                  Registration Rights Agreement, dated as of November 30,
                        1998, by and among the Registrant, Edwin Lewis and Mossimo
                        Giannulli(9)

 10.11                  Contribution Agreement dated as of November 30, 1998,
                        between the Registrant and Mossimo Giannulli(7)

 10.12                  Mossimo License Agreement, dated as of March 28, 2000,
                        between the Registrant and Target Stores, a division of
                        Target Corporation(10)

 10.13                  Cherokee-Mossimo Finders Agreement dated March 27, 2000
                        between the Registrant and Cherokee Inc.(10)

 10.14                  Endorsement Agreement, dated January 1, 2000, between the
                        Registrant and David Duval Enterprises, Inc.(11)

 10.15                  Separation Agreement and Release, dated as of March 28,
                        2000, by and among the Registrant, Edwin Lewis and Mossimo
                        Giannulli

 10.16                  Stock Option Termination Agreement, dated as of March 28,
                        2000, by and among the Registrant, Edwin Lewis and Mossimo
                        Giannulli(11)

 23.1                   Consent of Independent Public Accountants--Arthur Andersen
                        LLP(11)

 27                     Financial Data Schedule(11)
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(1) Incorporated by reference from the Registrant's Registration Statement on
    Form S-1 (No. 33-80597), as amended, which became effective February 22,
    1996.

(2) Incorporated by reference from the Registrant's Annual Report on Form 10-K
    for the year ended December 31, 1996.

(3) Incorporated by reference from the Registrant's Quarterly Report on
    Form 10-Q for the quarter ended June 30, 1996.

(4) Incorporated by reference from the Registrant's Quarterly Report on
    Form 10-Q for the quarter ended June 30, 1997.

(5) Incorporated by reference from the Registrant's Quarterly Report on
    Form 10-Q for the Quarter ended June 30, 1998.

(6) Incorporated by reference from the Registrant's Quarterly Report on
    Form 10-Q for the Quarter ended September 30, 1998.

(7) Incorporated by reference from the Registrant's Current Report on Form 8-K,
    dated December 8, 1998.

(8) Incorporated by reference from the Registrant's Quarterly Report on
    Form 10-Q for the Quarter ended March 31, 1999.

(9) Incorporated by reference from the Registrant's Annual Report on Form 10-K
    for the year ended December 31, 1998.

(10) Incorporated by reference from the Registrant's Current Report on
    Form 8-K, dated March 28, 2000.

(11) Incorporated by reference from the Registrant's Annual Report on Form 10-K
    for the year ended December 31, 1999.

    (b) Reports on Form 8-K:

       The Registrant did not file any reports on Form 8-K during the three
       months ended December 31, 1999.
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                                   SIGNATURES

    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 on the 14(th) day of
April 2000.

<TABLE>
<S>                                                    <C>  <C>
                                                       MOSSIMO, INC.

                                                       By:            /s/ MOSSIMO GIANNULLI
                                                            -----------------------------------------
                                                                        Mossimo Giannulli
                                                               CHAIRMAN OF THE BOARD, PRESIDENT AND
                                                                     CHIEF EXECUTIVE OFFICER
</TABLE>

    Pursuant to the requirements of the Securities Exchange Act of 1934, this
report has been signed below by the following persons on behalf of the
Registrant and in the capacities indicated on the 14(th) day of April 2000.

<TABLE>
<CAPTION>
                        NAME                                               TITLE
                        ----                                               -----
<C>                                                    <S>
                /s/ MOSSIMO GIANNULLI
     -------------------------------------------       Chairman of the Board, President and Chief
                  Mossimo Giannulli                      Executive Officer

                  /s/ JODY L. LOVE
     -------------------------------------------       Vice President of Finance (Principal
                    Jody L. Love                         Accounting Officer)

                 /s/ ROBERT MARTINI
     -------------------------------------------       Director
                   Robert Martini

                  /s/ JOHN STAFFORD
     -------------------------------------------       Director
                    John Stafford
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