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Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0000919574-11-000641.txt : 20110209
<SEC-HEADER>0000919574-11-000641.hdr.sgml : 20110209
<ACCEPTANCE-DATETIME>20110209162420
ACCESSION NUMBER:		0000919574-11-000641
CONFORMED SUBMISSION TYPE:	SC 13G/A
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20110209
DATE AS OF CHANGE:		20110209

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			SUPERTEX INC
		CENTRAL INDEX KEY:			0000730000
		STANDARD INDUSTRIAL CLASSIFICATION:	SEMICONDUCTORS & RELATED DEVICES [3674]
		IRS NUMBER:				942328535
		STATE OF INCORPORATION:			CA
		FISCAL YEAR END:			1221

	FILING VALUES:
		FORM TYPE:		SC 13G/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-36955
		FILM NUMBER:		11587427

	BUSINESS ADDRESS:	
		STREET 1:		1235 BORDEAUX DR
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089
		BUSINESS PHONE:		4087440100

	MAIL ADDRESS:	
		STREET 1:		1235 BORDEAUX DR
		CITY:			SUNNYVALE
		STATE:			CA
		ZIP:			94089

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			RIMA MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001328785
		IRS NUMBER:				000000000

	FILING VALUES:
		FORM TYPE:		SC 13G/A

	BUSINESS ADDRESS:	
		STREET 1:		111 EAST 55TH STREET
		STREET 2:		16TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
		BUSINESS PHONE:		514-281-8082

	MAIL ADDRESS:	
		STREET 1:		111 EAST 55TH STREET
		STREET 2:		16TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G/A
<SEQUENCE>1
<FILENAME>d1170108_13g-a.txt
<TEXT>

                      SECURITIES AND EXCHANGE COMMISSION
                              WASHINGTON, DC 20549

                                 SCHEDULE 13G
                                (Rule 13d-102)


             INFORMATION TO BE INCLUDED IN STATEMENTS FILED PURSUANT
           TO RULES 13d-1(b)(c), AND (d) AND AMENDMENTS THERETO FILED
                           PURSUANT TO RULE 13d-2(b)

                              (Amendment No. 1)*


                                 SUPERTEX, INC.
- --------------------------------------------------------------------------------
                                (Name of Issuer)


                           Common Stock, no par value
- --------------------------------------------------------------------------------
                         (Title of Class of Securities)


                                   868532102
- --------------------------------------------------------------------------------
                                 (CUSIP Number)


                                December 31, 2010
- --------------------------------------------------------------------------------
            (Date of Event Which Requires Filing of this Statement)


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

          [_]  Rule 13d-1(b)

          [X]  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).


<PAGE>




CUSIP No.    868532102
            -----------

1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Rima Management, LLC

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [X]

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

     0

6.   SHARED VOTING POWER

     709,608

7.   SOLE DISPOSITIVE POWER

     0

8.   SHARED DISPOSITIVE POWER

     709,608

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     709,608

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

                                                                          [_]

11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

     5.4%

12.  TYPE OF REPORTING PERSON*

     00


<PAGE>



CUSIP No.    868532102
            -----------

1.   NAME OF REPORTING PERSONS
     I.R.S. IDENTIFICATION NO. OF ABOVE PERSONS (ENTITIES ONLY)

     Richard Mashaal

2.   CHECK THE APPROPRIATE BOX IF A MEMBER OF A GROUP*
                                                                 (a)  [_]
                                                                 (b)  [X]

3.   SEC USE ONLY



4.   CITIZENSHIP OR PLACE OF ORGANIZATION

     Canada

NUMBER OF SHARES BENEFICIALLY OWNED BY EACH REPORTING PERSON WITH

5.   SOLE VOTING POWER

     0

6.   SHARED VOTING POWER

     709,608

7.   SOLE DISPOSITIVE POWER

     0

8.   SHARED DISPOSITIVE POWER

     709,608

9.   AGGREGATE AMOUNT BENEFICIALLY OWNED BY EACH REPORTING PERSON

     709,608

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

                                                                          [_]

11.  PERCENT OF CLASS REPRESENTED BY AMOUNT IN ROW 9

     5.4%

12.  TYPE OF REPORTING PERSON*

     IN


<PAGE>


CUSIP No.    868532102
            ---------------------


Item 1(a).  Name of Issuer:

            SUPERTEX, INC.
            --------------------------------------------------------------------

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

            1235 Bordeaux Drive
            Sunnyvale, California 94089
            --------------------------------------------------------------------

Item 2(a).  Name of Person Filing:

            Rima Management, LLC
            Richard Mashaal
            --------------------------------------------------------------------

Item 2(b).  Address of Principal Business Office, or if None, Residence:

            Rima Management, LLC
            110 East 55th Street
            Suite 1600
            New York, New York 10022

            Richard Mashaal
            c/o Rima Management, LLC
            110 East 55th Street
            Suite 1600
            New York, New York 10022
            --------------------------------------------------------------------

Item 2(c).  Citizenship:

            Rima Management, LLC - Delaware
            Richard Mashaal - Canada
            --------------------------------------------------------------------

Item 2(d).  Title of Class of Securities:

            Common Stock, no par value
            --------------------------------------------------------------------

Item 2(e).  CUSIP Number:


            868532102
            --------------------------------------------------------------------

Item 3.     If This Statement is Filed Pursuant to  Rule 13d-1(b), or 13d-2(b)
            or (c), Check Whether the Person Filing is a:

     (a)  [_]  Broker or dealer registered under Section 15 of the Exchange Act.

     (b)  [_]  Bank as defined in Section 3(a)(6) of the Exchange Act.

     (c)  [_]  Insurance  company as defined in Section 3(a)(19) of the Exchange
               Act.

     (d)  [_]  Investment  company  registered under Section 8 of the Investment
               Company Act.

     (e)  [_]  An investment adviser in accordance with Rule 13d-1(b)(1)(ii)(E);

     (f)  [_]  An employee  benefit plan or endowment  fund in  accordance  with
               Rule 13d-1(b)(1)(ii)(F);

     (g)  [_]  A parent  holding  company or control  person in accordance  with
               Rule 13d-1(b)(1)(ii)(G);

     (h)  [_]  A savings  association  as defined in Section 3(b) of the Federal
               Deposit Insurance Act;

     (i)  [_]  A  church  plan  that  is  excluded  from  the  definition  of an
               investment  company  under  Section  3(c)(14)  of the  Investment
               Company Act;

     (j)  [_]  Group, in accordance with Rule 13d-1(b)(1)(ii)(J).

Item 4.  Ownership.

     Provide  the  following  information  regarding  the  aggregate  number and
percentage of the class of securities of the issuer identified in Item 1.

     (a)  Amount beneficially owned:

          Rima Management, LLC - 709,608
          Richard Mashaal - 709,608
          ----------------------------------------------------------------------

     (b)  Percent of class:

          Rima Management, LLC - 5.4%
          Richard Mashaal - 5.4%
          ----------------------------------------------------------------------

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

          Rima Management, LLC:

          (i)   Sole power to vote or to direct the vote                  0
                                                              -----------------,


          (ii)  Shared power to vote or to direct the vote          709,608
                                                              -----------------,


          (iii) Sole power to dispose or to direct the                    0
                disposition of                                -----------------,


          (iv)  Shared power to dispose or to direct the            709,608
                disposition of                                -----------------.

          Richard Mashaal:

          (i)   Sole power to vote or to direct the vote                  0
                                                              -----------------,


          (ii)  Shared power to vote or to direct the vote          709,608
                                                              -----------------,


          (iii) Sole power to dispose or to direct the                    0
                disposition of                                -----------------,


          (iv)  Shared power to dispose or to direct the            709,608
                disposition of                                -----------------.



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

     If this statement is being filed to report the fact that as of the date
hereof the reporting person has ceased to be the beneficial owner of more than
five percent of the class of securities check the following [ ].

         Not applicable
         -----------------------------------------------------------------------


Item 6.  Ownership of More Than Five Percent on Behalf of Another Person.

     If any other person is known to have the right to receive or the power to
direct the receipt of dividends from, or the proceeds from the sale of, such
securities, a statement to that effect should be included in response to this
item and, if such interest relates to more than five percent of the class, such
person should be identified.  A listing of the shareholders of an investment
company registered under the Investment Company Act of 1940 or the beneficiaries
of employee benefit plan, pension fund or endowment fund is not required.


         Not applicable
         -----------------------------------------------------------------------


Item 7.  Identification and  Classification of the Subsidiary Which Acquired the
         Security  Being  Reported on by the Parent  Holding  Company or Control
         Person.


     If a parent holding company or Control person has filed this schedule,
pursuant to Rule 13d-1(b)(1)(ii)(G), so indicate under Item 3(g) and attach an
exhibit stating the identity and the Item 3 classification of the relevant
subsidiary.  If a parent holding company or control person has filed this
schedule pursuant to Rule 13d-1(c) or Rule 13d-1(d), attach an exhibit stating
the identification of the relevant subsidiary.


         Not applicable
         -----------------------------------------------------------------------


Item 8.  Identification and Classification of Members of the Group.

     If a group has filed this schedule pursuant to ss.240.13d-1(b)(1)(ii)(J),
so indicate under Item 3(j) and attach an exhibit stating the identity and Item
3 classification of each member of the group. If a group has filed this schedule
pursuant to ss.240.13d-1(c) or ss.240.13d-1(d), attach an exhibit stating the
identity of each member of the group.


         Not applicable
         -----------------------------------------------------------------------


Item 9.  Notice of Dissolution of Group.

     Notice of dissolution of a group may be furnished as an exhibit stating the
date of the dissolution and that all further filings with respect to
transactions in the security reported on will be filed, if required, by members
of the group, in their individual capacity.  See Item 5.


         Not applicable
         -----------------------------------------------------------------------

Item 10. Certifications.

         By signing  below I certify  that,  to the best of my  knowledge  and
         belief, the securities referred to above 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 such purpose or effect.


<PAGE>



                                   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.


                                                     February 9, 2011
                                          --------------------------------------
                                                        (Date)



                                          RIMA MANAGEMENT, LLC*

                                               By:  /s/ George Malikotsis
                                                    ------------------------
                                                  George Malikotsis
                                                  Vice President


                                          RICHARD MASHAAL*

                                               By:  /s/ Richard Mashaal
                                                    ------------------------
                                                         (signature)





* The Reporting Persons disclaim beneficial ownership in the Shares reported
herein except to the extent of their pecuniary interest therein.



<PAGE>




                                                                   Exhibit A


                                   AGREEMENT

      Each of the undersigned hereby consents and agrees to this joint filing on
Amendment No. 1 to Schedule 13G for the Common Stock, no par value per share of
SUPERTEX, INC.

Dated: February 9, 2011
                                          RIMA MANAGEMENT, LLC

                                               By:  /s/ George Malikotsis
                                                    ------------------------
                                                  George Malikotsis
                                                  Vice President


                                          RICHARD MASHAAL

                                               By:  /s/ Richard Mashaal
                                                    ------------------------
                                                       (signature)




SK 01780 0005 1170108
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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