AMERINDO INVESTMENT ADVISORS INC
SC 13D/A, 1996-09-20
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<PAGE>

                       SECURITIES AND EXCHANGE COMMISSION
                            Washington, D.C.  20549

                                SCHEDULE 13D/A

                   Under the Securities Exchange Act of 1934
                               (Amendment No.4)*

                               AVANT! CORPORATION
- --------------------------------------------------------------------------------
                                (Name of Issuer)

                                  COMMON STOCK
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   053487104
                        -------------------------------
                                 (CUSIP Number)
                     

                Alberto W. Vilar, Amerindo Investment Advisors Inc., 
                         One Embarcadero Center, Suite 2300,
              San Francisco, CA 94111-3162;  Telephone:  (415) 362-0292
- --------------------------------------------------------------------------------
                   (Name, Address and Telephone Number of Persons
                   Authorized to Receive Notices and Communications)


                            September 13, 1996
- --------------------------------------------------------------------------------
              (Date of Event which Requires Filing this Statement)

If the filing person has previously filed a statement on Schedule 13G to report
the acquisition which is the subject of this Schedule 13D/A, and is filing this
schedule because of Rule 13D-1(b)(3) or (4), check the following space     .
                                                                       ---

Check the following space if a fee is being paid with the statement     .  (A
                                                                    ---
fee is not required only if the reporting person:  (1) has a previous statement
on file reporting beneficial ownership of more than five percent of the class
of securities described in Item 1; and (2) has filed no amendment subsequent
thereto reporting beneficial ownership of five percent or less of such class.)
(See Rule 13D-7.)

NOTE:  Six copies of this statement, including all exhibits, should be filed
with the Commission.  See Rule 13D-1(a) for other parties to whom copies are to
be sent.

*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
disclosures provided in a prior cover page.

The information required on 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).
                        (Continued on following page(s))

<PAGE>
CUSIP 
No.  053487104                        13D/A

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     AMERINDO INVESTMENT ADVISORS INC., a California corporation, AMERINDO
     ADVISORS (U.K.) LIMITED, AMERINDO INVESTMENT ADVISORS, INC., a Panama
     corporation, the AMERINDO INVESTMENT ADVISORS INC. PROFIT SHARING
     TRUST, the AMERINDO ADVISORS (UK) LIMITED RETIREMENT BENEFITS SCHEME, 
     ALBERTO W. VILAR, GARY A. TANAKA, RENATA LE PORT and JAMES P. F. 
     STABLEFORD who disaffirm the existence of any group and who are 
     sometimes collectively referred to as the "Reporting Persons."

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only
- --------------------------------------------------------------------------------
  4  Source of Funds*
     00
- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]
- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     See Item 6 of separate cover pages for Reporting Persons

- --------------------------------------------------------------------------------
                 7   Sole Voting Power

    Number of        4,500 shares in the aggregate for all Reporting Persons and
     Shares          as to all but a portion of which beneficial ownership is
  Beneficially       disclaimed
    Owned By   
      Each     -----------------------------------------------------------------
    Reporting    8   Shared Voting Power
     Person 
      With           5,299,203 shares in the aggregate for all Reporting Persons
                     and as to all but up to 10,000 of which beneficial 
                     ownership is disclaimed

               -----------------------------------------------------------------
                 9   Sole Dispositive Power
 
                     4,500 shares in the aggregate for all Reporting Persons and
                     as to all but a portion of which beneficial ownership is 
                     disclaimed

               -----------------------------------------------------------------
                 10  Shared Dispositive Power 

                     5,299,203 shares in the aggregate for all Reporting Persons
                     and as to all but up to 10,000 of which beneficial 
                     ownership is disclaimed
                     
- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     5,303,703 shares in the aggregate for all Reporting Persons and as to
     all but up to 14,500 of which beneficial ownership is disclaimed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                 32.63%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                           IA

- --------------------------------------------------------------------------------
                     *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                     - 2 of 18 -


CUSIP 
No.  053487104                        13D/A

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     AMERINDO INVESTMENT ADVISORS INC.
 
- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     California

- --------------------------------------------------------------------------------
                 7   Sole Voting Power

    Number of        None
     Shares          
  Beneficially -----------------------------------------------------------------
    Owned By   
      Each       8   Shared Voting Power
    Reporting    
     Person          3,625,300 shares, as to all of which beneficial ownership 
      With           is disclaimed          
               -----------------------------------------------------------------
                 9   Sole Dispositive Power

                     None
 
               -----------------------------------------------------------------
                 10  Shared Dispositive Power 

                     3,625,300 shares, as to all of which beneficial ownership 
                     is disclaimed
                     
- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     3,625,300 shares, as to all of which beneficial ownership is disclaimed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)
                                                                    
     22.30%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*

     IA

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                     - 3 of 18 -


<PAGE>


CUSIP 
No.  053487104                        13D/A

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     AMERINDO ADVISORS (U.K.) LIMITED
 
- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     United Kingdom

- --------------------------------------------------------------------------------
                 7   Sole Voting Power

    Number of        None
     Shares          
  Beneficially -----------------------------------------------------------------
    Owned By   
      Each       8   Shared Voting Power
    Reporting    
     Person          
      With           None          
               -----------------------------------------------------------------
                 9   Sole Dispositive Power

                     None
 
               -----------------------------------------------------------------
                10   Shared Dispositive Power 

                     None 
- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person

     None   
- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)
                                                                    
     0.0%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*

     IA

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                    - 4 of 18 -

<PAGE>

CUSIP 
No.  053487104                        13D/A

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     AMERINDO INVESTMENT ADVISORS, INC.

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     Panama

- --------------------------------------------------------------------------------
                 7   Sole Voting Power

    Number of        None
     Shares          
  Beneficially  
    Owned By    ----------------------------------------------------------------
      Each       8   Shared Voting Power
    Reporting  
     Person          1,663,903 shares, as to all of which beneficial ownership 
      With           is disclaimed       
                ----------------------------------------------------------------
                 9   Sole Dispositive Power
 
                     None

                ----------------------------------------------------------------
                 10  Shared Dispositive Power 

                     1,663,903 shares, as to all of which beneficial ownership 
                     disclaimed

- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     1,663,903 shares, as to all of which beneficial ownership disclaimed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                 10.24%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                            IA

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                     - 5 of 18 -

<PAGE>

CUSIP 
No.  053487104                        13D/A

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     AMERINDO INVESTMENT ADVISORS INC. PROFIT SHARING TRUST

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     Florida

- --------------------------------------------------------------------------------
                 7   Sole Voting Power

    Number of        4,500 shares, as to all of which beneficial ownership is 
     Shares          disclaimed
  Beneficially  
    Owned By    ----------------------------------------------------------------
      Each        8  Shared Voting Power
    Reporting  
     Person          None
      With
                ----------------------------------------------------------------
                  9  Sole Dispositive Power
 
                     4,500 shares, as to all of which beneficial ownership is 
                     disclaimed

                ----------------------------------------------------------------
                  10 Shared Dispositive Power 

                     None

- --------------------------------------------------------------------------------
                  11 Aggregate Amount Beneficially Owned By Each Reporting 
                     Person                                      
                     
                     4,500 shares, as to all of which beneficial ownership is 
                     disclaimed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                    0.03%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                               EP

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                     - 6 of 18 -
<PAGE>
CUSIP 
No.  053487104                        13D/A 

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     AMERINDO INVESTMENT ADVISORS (UK) LIMITED RETIREMENT BENEFITS SCHEME

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     United Kingdom     
- --------------------------------------------------------------------------------
                 7   Sole Voting Power

    Number of
     Shares          None
  Beneficially      
    Owned By    ----------------------------------------------------------------
      Each        8  Shared Voting Power
    Reporting  
     Person          10,000 shares, as to all of which beneficial ownership is 
      With           disclaimed

                ----------------------------------------------------------------
                  9  Sole Dispositive Power
 
                     None

                ----------------------------------------------------------------
                  10 Shared Dispositive Power 

                     10,000 shares, as to all of which beneficial ownership is 
                     disclaimed

- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     10,000 shares, as to all of which beneficial ownership is disclaimed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                    0.06%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                               EP

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                     - 7 of 18 -

<PAGE>
CUSIP 
No.  053487104                        13D/A

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     ALBERTO W. VILAR

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     United States

- --------------------------------------------------------------------------------
                 7   Sole Voting Power

    Number of        4,500 shares, as to only a portion of which beneficial
     Shares          ownership is affirmed                                
  Beneficially  
    Owned By    ----------------------------------------------------------------
      Each        8  5,299,203 shares, as to all but up to 10,000 shares
    Reporting        of which beneficial ownership is disclaimed
     Person
      With      ----------------------------------------------------------------
  
                  9  Sole Dispositive Power
 
                     4,500 shares, as to only a portion of which beneficial 
                     ownership is affirmed

                ----------------------------------------------------------------
                 10  Shared Dispositive Power 

                     5,299,203 shares, as to all but up to 10,000 shares 
                     of which beneficial ownership
                     is disclaimed

- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     5,303,703 shares, as to all but a portion of which beneficial ownership is
     disclaimed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                  32.63%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                             IN

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                     - 8 of 18 -


<PAGE>
CUSIP 
No.  053487104                        13D/A

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     GARY A. TANAKA

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     United States

- --------------------------------------------------------------------------------
                  7    Sole Voting Power

    Number of         None
     Shares          
  Beneficially  
    Owned By    ----------------------------------------------------------------
      Each        8   Shared Voting Power
    Reporting  
     Person           5,299,203 shares, as to all but up to 10,000 of which 
      With            beneficial ownership is disclaimed
                                
                ----------------------------------------------------------------
                  9   Sole Dispositive Power
 
                      None

                ----------------------------------------------------------------
                  10  Shared Dispositive Power 

                      5,299,203 shares, as to all but up to 10,000 of which
                      beneficial ownership is disclaimed

- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     5,299,203 shares, as to all but a portion of which beneficial ownership
     disclaimed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                   32.60%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                              IN

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                     - 9 of 18 -


<PAGE>
CUSIP 
No.  053487104                        13D/A 

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     RENATA LE PORT

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     United Kingdom

- --------------------------------------------------------------------------------
                  7   Sole Voting Power
    Number of         
     Shares
  Beneficially        None 
    Owned By    ----------------------------------------------------------------
      Each        8   Shared Voting Power
    Reporting  
     Person           10,000 shares, as to only a portion of which beneficial 
      With            ownership is affirmed
 
                ----------------------------------------------------------------
                  9   Sole Dispositive Power

                      None 
 
                ----------------------------------------------------------------
                  10  Shared Dispositive Power 
                      
                      10,000 shares, as to only a portion of which beneficial 
                      ownership is affirmed

- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     10,000 shares, as to only a portion of which beneficial 
     ownership is affirmed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                   0.06%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                              IN

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!


                                     - 10 of 18 -

<PAGE>
CUSIP 
No.  053487104                        13D/A 

- --------------------------------------------------------------------------------
  1  Name of Reporting Person
     S.S. or I.R.S. Identification No. of Above Person

     JAMES P. F. STABLEFORD

- --------------------------------------------------------------------------------
  2  Check the Appropriate Box if a Member of a Group*            (a)   [ ]

                                                                  (b)   [ ]
- --------------------------------------------------------------------------------
  3  SEC Use Only

- --------------------------------------------------------------------------------
  4  Source of Funds*
     00

- --------------------------------------------------------------------------------
  5  Check Box if Disclosure of Legal Proceedings is Required           [ ]

- --------------------------------------------------------------------------------
  6  Citizenship or Place of Organization

     United Kingdom

- --------------------------------------------------------------------------------
                  7   Sole Voting Power
    Number of         
     Shares           None
  Beneficially        
    Owned By    ----------------------------------------------------------------
      Each        8   Shared Voting Power
    Reporting  
     Person           10,000 shares, as to only a portion of which beneficial 
      With            ownership is affirmed
                ----------------------------------------------------------------
                  9   Sole Dispositive Power

                      None 
 
                ----------------------------------------------------------------
                  10  Shared Dispositive Power
 
                      10,000 shares, as to only a portion of which beneficial 
                      ownership is affirmed
                      

- --------------------------------------------------------------------------------
 11  Aggregate Amount Beneficially Owned By Each Reporting Person
                                      
     10,000 shares, as to only a portion of which beneficial 
     ownership is affirmed

- --------------------------------------------------------------------------------
 12  Check Box if the Aggregate Amount in Row (11) excludes Certain
     Shares*                                                            [X]

- --------------------------------------------------------------------------------
 13  Percent of Class Represented by Amount in Row (11)                   0.06%

- --------------------------------------------------------------------------------
 14  Type of Reporting Person*                                              IN

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

                     *SEE INSTRUCTIONS BEFORE FILLING OUT!

                                     - 11 of 18 -

<PAGE>CUSIP 
No.  053487104                        13D/A

ITEM 1.   Security and Issuer.
- -------   -------------------
          The class of equity securities to which this statement relates 
is the Common Stock of Avant! Corporation ("the Issuer"), whose
principal executive offices are located at 1208 East Arques Avenue,
Sunnyvale, CA 94086.

ITEM 2.   Identity and Background.
- ------    -----------------------
          This statement is being filed by Amerindo Investment
Advisors Inc., a California corporation whose principal executive offices
are located at One Embarcadero Center, Suite 2300, San Francisco,
California, 94111 ("Amerindo"), Amerindo Advisors (U.K.) Limited, a United
Kingdom corporation whose principal executive offices are located at 43
Upper Grosvenor Street, London WIX 9PG England ("Amerindo UK"), Amerindo
Investment Advisors, Inc., a Panama corporation, whose principal executive
offices are located at Edificio Sucre, Calle 48 Este, Bella Vista, Apartado
6277, Panama 5, Panama ("Amerindo Panama"), the Amerindo Investment Advisors
Inc. Profit Sharing Trust, the address of which is Gables International
Plaza, 2655 Le Jeune Road, Suite 1112, Coral Gables, FL 33134 (the "Plan"),
the Amerindo Advisors (UK) Limited Retirement Benefits Scheme, the address 
of which is 43 Upper Grosvenor Street, London WIX 9PG England ("Retirement 
Benefits Scheme"), Alberto W. Vilar, Gary A. Tanaka, James P. F. Stableford 
and Renata LePort.  Although this statement is being made jointly by Amerindo, 
Amerindo UK, Amerindo Panama, the Plan, the Retirement Benefits Scheme, Messrs. 
Vilar, Tanaka, Stableford and Ms. Le Port, each of them expressly disaffirms 
membership in any group under Rule 13D-5 under the Securities Exchange Act of 
1934, as amended (the "Exchange Act"), or otherwise.

          Amerindo is registered as an investment advisor under the 
Investment Advisors Act of 1940, as amended, and Amerindo UK is registered 
with the Investment Management Regulatory Organization in the United 
Kingdom.  Messrs. Alberto W. Vilar and Gary A. Tanaka, whose business 
addresses are the same as those set forth for Amerindo and Amerindo UK and 
each of whom is a U.S. citizen, are the only directors and executive 
officers of Amerindo U.K. and Amerindo Panama.  They are also the only 
directors and executive officers of Amerindo, other than Mr. James H. 
Furey, Chief Operating Officer, and Mr. Joaquin Garcia-Larrieu, Chief 
Financial Officer.  Mr. Furey's business address is at Amerindo's offices 
at 399 Park Avenue, New York, New York 10022, and Mr. Garcia's business 
address is Gables International Plaza, 2655 Le Jeune Road, Suite 1112, 
Coral Gables, FL 33134.  Messrs. Alberto W. Vilar, Gary A. Tanaka, 
James P. F. Stableford and Ms. Renata Le Port are managing trustees of the 
Amerindo Advisors (UK) Limited Retirement Benefits Scheme and Mr. Vilar is 
the sole trustee of the Profit Sharing Trust.  Amerindo, Amerindo UK, 
Amerindo Panama, the Plan, the Retirement Benefits Scheme, Messrs. Vilar, 
Tanaka, Stableford and Ms. Le Port are sometimes hereinafter collectively 
referred to as the "Reporting Persons."  Messrs. Vilar, Tanaka, Stableford, 
Furey, Garcia and Ms. LePort are sometimes hereinafter collectively referred 
to as the "Other Named Individuals."

          During the last five years, none of the Reporting Persons or Other 
Named Individuals has been convicted in a criminal proceeding (excluding 
traffic violations or similar misdemeanors), nor has any such individual or 
entity been a party to a civil proceeding of a judicial or administrative 
body of competent jurisdiction as a result of which proceeding such 
individual or entity was or is subject to a judgment, decree or final order 
enjoining future violations of, or prohibiting or mandating activities 
subject to, Federal or state securities laws or finding any violation with 
respect to such laws.


ITEM 3.   Source and Amounts of Funds or Other Consideration.
- -------   --------------------------------------------------
         All purchases of the subject securities by the Reporting Persons
have been in the ordinary course of the respective businesses of Amerindo,
Amerindo U.K. and Amerindo Panama (collectively, the "Advisor Entities") as
investment advisors, except for an aggregate of 10,000 shares which are 
owned by the Retirement Benefits Scheme and 4,500 shares owned by the Plan.  
Accordingly, the funds used to purchase the subject securities have been 
client funds pertaining to accounts under management, except that the shares 
owned by the Retirement Benefits Scheme and the Plan were purchased with 
Retirement Benefits Scheme and Plan assets, respectively.  Purchases of the 
Issuer's securities by the Named Individuals would all be and have all been 
made with their personal funds, except that margin credit may also be, and 
may have been, employed.
                                     - 12 of 18 -


ITEM 4.   Purpose of Transaction.
- -------   ----------------------
        All of the subject securities have been purchased by the Advisor
Entities in the ordinary course of their respective businesses as
investment advisors (or, in the case of securities held by the  
Retirement Benefits Scheme and the Plan, in the ordinary course of 
investing for the Retirement Benefits Scheme and the Plan), and not 
with the purpose of effecting changing or influencing the control of the 
issuer or in connection with or as a participant in any transaction 
having such purpose or effect, including any transaction subject to 
Rule 13D-3(b) under the Exchange Act.  Additionally, because each of the 
Advisor Entities is obligated to act in the best interests of its 
respective clients and in accordance with the respective mandates of those 
clients, there is no agreement between or among any of the Reporting 
Persons to act together with respect to the Issuer or its securities, 
except that they may, from time to time and provided that transactions 
are otherwise being effected at the same time, aggregate orders for client 
accounts in order to receive more favorable trading terms.  Any of the 
subject securities acquired or which might in the future be acquired by 
any of the Named Individuals have been and would be acquired for investment 
and not with the purpose of effecting of changing or influencing the control 
of the issuer or in connection with or as a participant in any transaction 
having such purpose or effect, including any transaction subject to 
Rule 13D-3(b) under the Exchange Act.


ITEM 5.  Interests in Securities of Issuer.
- -------  ---------------------------------

         (a)  See Exhibit "A" attached hereto for information setting forth for
each of the Reporting Persons and for each Named Individual the aggregate number
of shares of the Common Stock of Issuer beneficially owned by such person as of
September 13, 1996, and the percentage which such shares constitute of the total
number of shares outstanding, as reflected on Issuer's Form 10-Q for the Quarter
ended June 30, 1996, unless information has been obtained as of a later
date directly from the Issuer (with beneficial ownership determined as set forth
in Rule 13D-3 under the Exchange Act, but disclaimed except as set forth in the
Exhibit).

         (b) Messrs. Vilar and Tanaka share voting and dispositive power
over all shares shown as owned by any of the Reporting Persons, except that 
Messrs. Vilar, Tanaka, Stableford and Ms. Le Port have shared 
voting and dispositive power over the 10,000 shares held by the Retirement 
Benefits Scheme and Mr. Vilar has sole voting and dispositive power over the 
4,500 shares held in the Plan; however, each client of the Advisor Entities 
has the unilateral right to terminate the advisory arrangement with the 
Entity in question on notice which typically need not exceed 30 days.  Each 
of the Other Named Individuals has sole voting and dispositive power as to 
the shares shown in Exhibit "A" as owned by him.

          (c) The table contained in Exhibit "B" attached hereto sets forth for 
each of the Reporting Persons and Named Individuals information concerning all
acquisitions and dispositions of Issuer's Common Stock by any such person
during the period beginning on July 15, 1996, and ending on September 13, 1996,
including (i) the date of the transaction (ii) whether the transaction was a 
purchase or sale, (iii) the number of shares involved, and (iv) the price per
share at which the transaction was effected.  All transactions were effected 
on the open market.

          (d) The shares covered by this statement are all owned by clients
of the Advisor Entities and/or the Plans.  No such person's interest in the
securities included in this statement exceeds 5% of the class outstanding.

          (e) Inapplicable

                                     - 13 of 18 -

<PAGE>

ITEM 6.   Contracts, Arrangements, Understandings or
- ------    Relationships with Respect to Securities
          of the Issuer.
          ------------------------------------------

          Messrs. Vilar and Tanaka are the sole shareholders and directors
of each of the Advisor Entities.  As stated above, clients of those
Entities generally have the right to terminate their investment advisory
arrangements with those Entities on notice of 30 days or less.


ITEM 7.   Material to be Filed as Exhibits.
- ------    --------------------------------

          Inapplicable.

                                     - 14 of 18 -


<PAGE>
                                   SIGNATURES
                                   ----------

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

                                   AMERINDO INVESTMENT ADVISORS INC.,
                                   a California corporation
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, PRESIDENT


                                   AMERINDO INVESTMENT ADVISORS (U.K.) LIMITED,
                                   a United Kingdom corporation
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, DIRECTOR


                                   AMERINDO INVESTMENT ADVISORS, INC.,
                                   a Panama corporation
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, DIRECTOR


                                   AMERINDO INVESTMENT ADVISORS INC.,
                                   PROFIT SHARING TRUST
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, TRUSTEE
        

                                   AMERINDO ADVISORS (UK) LIMITED RETIREMENT 
                                   BENEFITS SCHEME
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                       ALBERTO W. VILAR, TRUSTEE

                                   By:  /s/ Gary A. Tanaka
                                        --------------------------------------
                                        GARY A. TANAKA, TRUSTEE

                                   By:  /s/ Renata Le Port
                                        --------------------------------------
                                        RENATA LE PORT, TRUSTEE

                                   By:  /s/ James P.F. Stableford
                                        --------------------------------------
                                        JAMES P.F. STABLEFORD, TRUSTEE

                                        
                                        /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR

                                        /s/ Gary A. Tanaka
                                        --------------------------------------
                                        GARY A. TANAKA




                                     - 15 of 18 -

<PAGE>

                              EXHIBIT A

                         AVANT! CORPORATION

                            COMMON STOCK

                             053487104


                            


     The following table sets forth for each of the Reporting Persons and
for each Other Named Individual the aggregate number of shares of the Common
Stock of the Issuer beneficially owned by such person as of September 13, 1996,
and the percentage which such shares constitute of the total number of
shares outstanding, as reflected on the Issuer's Form 10-Q for the Quarter
ended June 30, 1996, unless based on more recent information obtained
directly from the Issuer (with beneficial ownership determined as set forth 
in Rule 13D-3 under the Exchange Act, but disclaimed as set forth in the 
footnote):

          NAME                   NO. OF SHARES (1)       PERCENT OF CLASS
          ----                   -------------           ----------------
          Amerindo               3,625,300                      22.30%

          Amerindo UK                    0                       0.00%

          Amerindo Panama        1,663,903                      10.24%

          Plan                       4,500                       0.03%

          Retirement Benefits
          Scheme                    10,000                       0.06%

          Alberto W. Vilar       5,303,703                      32.63%

          Gary A. Tanaka         5,299,203                      32.60%

          James H. Furey                 0                       0.00%

          Joaquin Garcia                 0                       0.00%

          Renata Le Port            10,000                       0.06% 

          James P. F. Stableford    10,000                       0.06%


 (1)  Messrs. Vilar and Tanaka, as the sole directors and shareholders of
each of the Advisor Entities, share voting and investment power as to all
shares shown as owned by the Advisor Entities, but they and the Advisor
Entities disclaim ownership of any of such shares.  As sole trustee of the
Plan, Mr. Vilar exercises sole investment and dispositive power as to the
shares shown as owned by the Plan, but disclaims beneficial ownership of
any of such shares except insofar as concerns his indirect interest therein
by reason of his pro rata interest in the Plan.  Messrs. Vilar, Tanaka, 
Stableford and Ms. LePort, as the managing trustees of the Retirement Benefits 
Scheme, share investment and dispositive power as to the shares shown as owned 
by the Retirement Benefits Scheme, but disclaim beneficial ownership of any of 
such shares except insofar as concerns their indirect interest therein by 
reason of their pro rata interest in the Scheme.  The number of shares shown
as owned by the Other Named Individuals does not include any owned
indirectly by them as participants in the Plan and/or Retirement Benefits 
Scheme.  Each client of the Advisor Entities has the unilateral right to 
terminate the advisory arrangement with the Entity in question on notice 
which typically need not exceed 30 days.


                                     - 16 of 18 -

<PAGE>

                              EXHIBIT B

                         AVANT! CORPORATION

                            COMMON STOCK

                             053487104


     The following table sets forth for each of the Reporting Persons and Other
Named Individuals information concerning all acquisitions and dispositions
of the Issuer's Common Stock by any such person during the period beginning
on July 15, 1996, and ending on September 13, 1996, including (i) the
date of the transaction (ii) whether the transaction was a purchase or
sale, (iii) the number of shares involved, and (iv) the price per share at
which the transaction was effected.  All transactions were effected on the
open market.

                                       Type of         Number        Price
      Name                 Date        Transaction     of Shares     per Share
      ----                 ----        -----------     ---------     ---------
Amerindo US  
Amerindo US 
Amerindo US                05-22-96    Buy              5,000        22.1250
Amerindo US                05-22-96    Buy              5,000        21.8750
Amerindo US                05-29-96    Buy             10,000        18.7500
Amerindo US                06-03-96    Buy              5,000        21.5500
Amerindo US                07-02-96    Buy              2,500        24.6750
Amerindo US                07-03-96    Buy              5,000        23.5500
Amerindo US                07-05-96    Buy             20,000        22.9875
Amerindo US                07-08-96    Buy             25,000        22.5000
Amerindo US                07-08-96    Buy              3,200        22.4250
Amerindo US                07-09-96    Buy             65,000        24.0000



                                 


                                    - 17 of 18 -

<PAGE>

                                   EXHIBIT C

                               AVANT! CORPORATION

                                  COMMON STOCK

                                   053487104

                                        
We hereby agree that the within Statement on Schedule 13D/A regarding our 
beneficial ownership of Common Stock is filed on behalf of each of us.


                                   AMERINDO INVESTMENT ADVISORS INC.,
                                   a California corporation
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, PRESIDENT

                                   
                                   AMERINDO INVESTMENT ADVISORS (U.K.) LIMITED,
                                   a United Kingdom corporation
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, DIRECTOR


                                   AMERINDO INVESTMENT ADVISORS, INC.,
                                   a Panama corporation
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, DIRECTOR


                                   AMERINDO INVESTMENT ADVISORS INC.,
                                   PROFIT SHARING TRUST
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR, TRUSTEE
                          

                                   AMERINDO ADVISORS (UK) LIMITED RETIREMENT 
                                   BENEFITS SCHEME
                                   By:  /s/ Alberto W. Vilar
                                        --------------------------------------
                                       ALBERTO W. VILAR, TRUSTEE

                                   By:  /s/ Gary A. Tanaka
                                        --------------------------------------
                                        GARY A. TANAKA, TRUSTEE

                                   By:  /s/ Renata Le Port
                                        --------------------------------------
                                        RENATA LE PORT, TRUSTEE

                                   By:  /s/ James P.F. Stableford
                                        --------------------------------------
                                        JAMES P.F. STABLEFORD, TRUSTEE



                                        /s/ Alberto W. Vilar
                                        --------------------------------------
                                        ALBERTO W. VILAR

                                        /s/ Gary A. Tanaka
                                        --------------------------------------
                                        GARY A. TANAKA



                                   - 18 of 18 -


 <PAGE>



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