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      <pre><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman;"><strong><font id="TAB2" style="LETTER-SPACING: 9pt;">&#160; &#160;</font>&#160;<font id="TAB2" style="LETTER-SPACING: 9pt;">&#160; &#160;</font>&#160;<font id="TAB2" style="LETTER-SPACING: 9pt;">&#160; &#160;</font>&#160;<font id="TAB2" style="LETTER-SPACING: 9pt;">&#160; &#160;</font>&#160;<font id="TAB2" style="LETTER-SPACING: 9pt;">&#160; &#160;</font>&#160;<font id="TAB2" style="LETTER-SPACING: 9pt;">&#160; &#160;</font>&#160;<font id="TAB2" style="LETTER-SPACING: 9pt;">&#160; &#160;</font>&#160;UNITED STATES</strong></font><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: Times New Roman;"><strong>SECURITIES AND EXCHANGE COMMISSION</strong></font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><strong>Washington, D.C. 20549</strong></font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: Times New Roman;"><strong>FORM 8-K</strong></font></div><div><br></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">CURRENT REPORT</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Pursuant to Section 13 OR 15(d) of</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">The Securities Exchange Act of 1934</font></div><div><br></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Date of Report (Date of earliest event reported): &#160; December 21, 2007</font></div><div><br></div><div><table cellpadding="0" cellspacing="0" width="100%"><tr><td align="left" valign="top" width="70%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 18pt; FONT-FAMILY: times new roman;"><strong>SUPERTEX, INC.</strong></font></div>
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        </tr><tr><td align="left" valign="top" width="70%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
        </td>
        </tr><tr><td valign="top" width="70%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(Exact name of registrant as specified in its charter)</font></div>
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        </div><div><br></div><div><table cellpadding="0" cellspacing="0" width="100%"><tr><td align="left" valign="top" width="21%" style="BORDER-BOTTOM: black 2px solid"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><strong>California</strong></font></div>
        </td><td align="left" valign="middle" width="5%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
        </td><td align="left" valign="top" width="18%" style="BORDER-BOTTOM: black 2px solid"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><strong>0-12718</strong></font></div>
        </td><td align="left" valign="middle" width="5%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
        </td><td align="left" valign="top" width="21%" style="BORDER-BOTTOM: black 2px solid"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><strong>94-2328535</strong></font></div>
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        </tr><tr><td valign="top" width="21%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(State or other jurisdiction of incorporation)</font></div>
        </td><td align="left" valign="middle" width="5%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
        </td><td valign="top" width="18%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(Commission File Number)</font></div>
        </td><td align="left" valign="middle" width="5%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
        </td><td valign="top" width="21%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(IRS Employer Identification No.)</font></div>
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        </div><div><br></div><div><table cellpadding="0" cellspacing="0" width="100%"><tr><td align="left" valign="top" width="50%" style="BORDER-BOTTOM: black 2px solid"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><strong>1235 Bordeaux Drive, Sunnyvale, California</strong></font></div>
        </td><td align="left" valign="top" width="20%" style="BORDER-BOTTOM: black 2px solid"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;"><strong>94089</strong></font></div>
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        </tr><tr><td valign="top" width="50%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(Address of principal executive offices)</font></div>
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        </div><div><br></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Registrant&#8217;s telephone number, including area code <strong><u>408-222-8888</u></strong></font></div><div><br></div><div><table cellpadding="0" cellspacing="0" width="100%"><tr><td align="left" valign="top" width="70%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
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        </tr><tr><td align="left" valign="top" width="70%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
        </td>
        </tr><tr><td valign="top" width="70%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="center"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(Former name or former address, if changed since last report.)</font></div>
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        </div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following </font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">provisions (see General Instruction A.2. below):</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">[ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">[ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">[ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">[ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))</font></div><br><div id="PGBRK" style="MARGIN-LEFT: 0pt; WIDTH: 100%; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt"><div id="FTR"><div style="WIDTH: 100%" align="left">&#160;&#160;&#160;&#160;&#160;&#160;<div>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<br>&#160;&#160;&#160;&#160;&#160;&#160;</div>&#160;&#160;&#160;&#160;&#160;&#160;<div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;<font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"> </font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;</div>&#160;&#160;&#160;&#160;</div><div id="GLFTR" style="WIDTH: 100%" align="left">&#160;</div>
        </div><div id="PN" style="PAGE-BREAK-AFTER: always"><div style="WIDTH: 100%; TEXT-ALIGN: center"><font style="DISPLAY: inline; FONT-SIZE: 8pt; FONT-FAMILY: Times New Roman;">1</font></div><div style="WIDTH: 100%; TEXT-ALIGN: center"><hr style="COLOR: black" noshade size="2">
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        </div><br><div><br></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div><br></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><a name="FIS_RESULTS_OF_OPERATIONS">TABLE OF CONTENTS</a></font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 36pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">Item 5.03&#160;&#160;Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div><div style="DISPLAY: block; 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Change in Fiscal Year.</strong></font></div><div><br></div><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><font id="TAB1" style="MARGIN-LEFT: 18pt;"></font>On December 21, 2007, Registrant's Board of Directors approved an amendment and restatement of Registrant&#8217;s bylaws.&#160;&#160;Registrant needed to amend </font></div><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">its </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">bylaws to permit electronic share issuance, registration, and transfer in lieu of paper share certificates as required by new NASDAQ rules and took the </font></div><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">opportunity </font><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">to update its bylaws.&#160;&#160;Sections which were added or amended significantly include without limitation:</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">1.&#160;&#160;Sections 2.3 and 2.4, which require shareholders to provide advance notice of any proposals or nominations they wish to make at an annual shareholders </font></div><div style="DISPLAY: block; MARGIN-LEFT: 18pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;">meeting,</font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div><div style="DISPLAY: block; 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MARGIN-RIGHT: 0pt" align="left">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><strong>Item 9.01&#160;&#160;&#160;&#160;Financial Statements and Exhibits.</strong></font></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="justify">&#160;</div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><font id="TAB1" style="MARGIN-LEFT: 36pt;"></font>(d)&#160;&#160;Exhibits.</font></div><div><br></div><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: Times New Roman;"><font id="TAB1" style="MARGIN-LEFT: 36pt;"></font>&#160;&#160;&#160;&#160;&#160;&#160;&#160;&#160;Exhibit 3.6,&#160;&#160;Amended and Restated Bylaws, is attached.</font></div><div style="DISPLAY: block; 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MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div><div><table cellpadding="0" cellspacing="0" width="100%"><tr><td align="right" valign="top" width="20%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="right">&#160;</div>
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        </td><td align="left" valign="top" width="26%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 12pt; FONT-FAMILY: times new roman;"><strong>Supertex., Inc</strong></font></div>
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        </td><td align="left" valign="top" width="26%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">(Registrant)</font></div>
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        </td><td align="left" valign="top" width="26%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
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        </tr><tr><td align="left" valign="top" width="20%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Date: December 26, 2007</font></div>
        </td><td align="left" valign="top" width="8%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">By</font></div>
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        </td>
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        </td>
        </tr><tr><td align="left" valign="top" width="20%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left">&#160;</div>
        </td><td align="left" valign="top" width="8%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">Title</font></div>
        </td><td align="left" valign="top" width="26%"><div style="DISPLAY: block; MARGIN-LEFT: 0pt; TEXT-INDENT: 0pt; MARGIN-RIGHT: 0pt" align="left"><font style="DISPLAY: inline; FONT-SIZE: 10pt; FONT-FAMILY: times new roman;">VP, Finance &amp; Chief Financial Officer</font></div>
        </td>
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text: supx8kbylawsamendment122707.htm
  UNITED STATES
  SECURITIES AND EXCHANGE COMMISSION
  Washington, D.C. 20549
  FORM 8-K
  CURRENT REPORT
  Pursuant to Section 13 OR 15(d) of
  The Securities Exchange Act of 1934
  Date of Report (Date of earliest event reported):   December 21, 2007
  SUPERTEX, INC.
  (Exact name of registrant as specified in its charter)
  California
  0-12718
  94-2328535
  (State or other jurisdiction of incorporation)
  (Commission File Number)
  (IRS Employer Identification No.)
  1235 Bordeaux Drive, Sunnyvale, California
  94089
  (Address of principal executive offices)
  (Zip Code)
  Registrant's telephone number, including area code
  408-222-8888
  (Former name or former address, if changed since last report.)
  Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following
  provisions (see General Instruction A.2. below):
  [ ] Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)
  [ ] Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)
  [ ] Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))
  [ ] Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))
  1
  TABLE OF CONTENTS
  Item 5.03  Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year
  Item 9.01   Financial Statements and Exhibits
  Signatures
  Item 5.03    Amendments to Articles of Incorporation or Bylaws; Change in Fiscal Year.
  On December 21, 2007, Registrant's Board of Directors approved an amendment and restatement of Registrant's bylaws.  Registrant needed to amend
  its
  bylaws to permit electronic share issuance, registration, and transfer in lieu of paper share certificates as required by new NASDAQ rules and took the
  opportunity
  to update its bylaws.  Sections which were added or amended significantly include without limitation:
  1.  Sections 2.3 and 2.4, which require shareholders to provide advance notice of any proposals or nominations they wish to make at an annual shareholders
  meeting,
  2.  Sections 3.7 and 3.8, which facilitate board meeting notices including by email,
  3.  Section 5.8 and 5.13, which  create the offices of CEO and CTO (which were filled by Henry Pao and Benedict Choy, respectively),
  4.  Section 8.9, which permits electronic share issuance, registration, and transfer in lieu of paper share certificates as required by new NASDAQ rules,
  5.  Article VI, which  provides for additional indemnification of agents, and
  6.  Article X, which provides the ability to impose confidentiality restrictions on shareholders exercising their statutory inspection rights.
  Item 9.01    Financial Statements and Exhibits.
  (d)  Exhibits.
  Exhibit 3.6,  Amended and Restated Bylaws, is attached.
  SIGNATURES
  Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned
  hereunto duly authorized.
  Supertex., Inc
  (Registrant)
  Date: December 26, 2007
  By
  /s/ Phillip A Kagel
  Name
  Phillip A. Kagel
  Title
  VP, Finance & Chief Financial Officer
  2
  Exhibit Index
  Exhibit 3.6,  Amended and Restated Bylaws, is attached.
  3