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<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>
<DIV style="font-family: 'Times New Roman',Times,serif">



<P align="center" style="font-size: 10pt">As filed with the
Securities and Exchange Commission on June&nbsp;30, 2005



<P align="right" style="font-size: 10pt">Registration No.&nbsp;333-



<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 1pt solid black; font-size: 1pt">&nbsp;</DIV>




<P align="center" style="font-size: 14pt"><B>SECURITIES AND EXCHANGE COMMISSION</B>

<DIV align="center" style="font-size: 12pt"><B>Washington, D.C. 20549</B>
</DIV>


<P align="center" style="font-size: 10pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>


<P align="center" style="font-size: 18pt"><B>FORM S-8</B>


<P align="center" style="font-size: 12pt"><B>REGISTRATION STATEMENT<BR>
UNDER<BR>
THE SECURITIES ACT OF 1933</B>


<P align="center" style="font-size: 10pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>


<P align="center" style="font-size: 24pt"><B>Micrus Endovascular Corporation</B>


<DIV align="center" style="font-size: 10pt">(Exact name of registrant as specified in its charter)</DIV>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="47%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="47%">&nbsp;</TD>
</TR>
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<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>94-3409596</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top">(State or other jurisdiction<BR>
of incorporation or organization)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">(IRS Employer Identification No.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt"><B>610 Palomar Avenue, Sunnyvale, CA 94085</B><BR>
(Address of principal executive offices) (Zip Code)<BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>



<P align="center" style="font-size: 10pt"><B>1998 Stock Plan<BR>
2005 Equity Incentive Plan<BR>
2005 Employee Stock Purchase Plan</B><BR>
(Full title of the Plans)<BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>



<P align="center" style="font-size: 10pt"><B>John T. Kilcoyne<BR>
President and Chief Executive Officer<BR>
Micrus Endovascular Corporation<BR>
610 Palomar Avenue, Sunnyvale, CA 94085</B><BR>
(Name and address of agent for service)<BR>
<B>(408)&nbsp;830-5900</B><BR>
(Telephone number, including area code, of agent for service)



<P align="center" style="font-size: 10pt">Copy to:<BR>
<B>Glen R. Van Ligten, Esq.<BR>
Orrick, Herrington &#038; Sutcliffe LLP<BR>
1020 Marsh Road, Menlo Park</B>, <B>CA 94025<BR>
(650)&nbsp;614-7400</B>



<P align="center" style="font-size: 10pt"><B>CALCULATION OF REGISTRATION FEE</B>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="1%">&nbsp;</TD>
    <TD width="62%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD><!-- VRule -->
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="5%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-bottom: 3px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Title of Securities</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Amount</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Proposed Maximum</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Proposed Maximum</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>to be</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Offering Price</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Aggregate Offering</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Amount of</B></TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD nowrap align="center"><B>Registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Registered </B><SUP style="font-size: 85%; vertical-align: text-top">(1)</SUP></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Per Share</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Price</B></TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="2"><B>Registration Fee</B></TD>
    <TD>&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
                    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock $0.01
par value per share
(1998 Stock Plan)</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">2,355,373</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">4.34</TD>
    <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">10,222,318.82</TD>
    <TD nowrap style="border-top: 2px solid #000000">(2)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">1,203.17</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock $0.01
par value per share
(2005 Equity
Incentive Plan)</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">2,394,592</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">10.975</TD>
    <TD nowrap style="border-top: 2px solid #000000">(3)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">26,280,647.20</TD>
    <TD nowrap style="border-top: 2px solid #000000">(3)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">3,093.23</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">Common Stock $0.01
par value per share
(2005 Employee
Stock Purchase
Plan)</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">222,222</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">9.32875</TD>
    <TD nowrap style="border-top: 2px solid #000000">(4)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD nowrap align="left" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">2,073,053.48</TD>
    <TD nowrap style="border-top: 2px solid #000000">(4)</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">244.00</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000"><DIV style="margin-left:15px; text-indent:-15px">TOTAL:</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">4,972,187</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 2px solid #000000">$</TD>

<TD align="right" style="border-top: 2px solid #000000">38,576,019.50</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="left" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" style="border-top: 2px solid #000000">4,540.40</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 2px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-top: 3px solid #000000">&nbsp;</TD>
</TR>

<!-- End Table Body -->
</TABLE>
</DIV>

<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Pursuant to Rule&nbsp;416 under the Securities Act of 1933, this Registration Statement also
covers additional securities that may be issued under the 1998 Stock Plan, 2005 Equity
Incentive Plan or 2005 Employee Stock Purchase Plan as a result of stock splits, stock
dividends or similar transactions.</TD>
</TR>

<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended, on the basis of the weighted average per share exercise price of $4.34 as to
2,355,373 outstanding but unexercised options to purchase Common Stock of Micrus Endovascular
Corporation.</TD>
</TR>

<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended, on the basis of the average of the high ($11.10)
and low ($10.85) prices per
share of Common Stock of Micrus Endovascular Corporation on
June&nbsp;23, 2005, as reported by the
Nasdaq National Market System.</TD>
</TR>

<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="3%" nowrap align="left">(4)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended, on the basis of the average of the high ($11.10)
and low ($10.85) prices per
share of Common Stock of Micrus Endovascular Corporation on
June&nbsp;23, 2005, as reported by the
Nasdaq National Market System, multiplied by 85%, which is the percentage of the trading
purchase price applicable to purchases under the referenced Plan.</TD>
</TR>

</TABLE>


<DIV style="width: 100%; border-bottom: 1pt solid black; margin-top: 10pt; font-size: 1pt">&nbsp;</DIV>
<DIV style="width: 100%; border-bottom: 2pt solid black; font-size: 1pt">&nbsp;</DIV>





<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<P><HR noshade><P>

<DIV style="font-family: 'Times New Roman',Times,serif">




<!-- TOC -->
<A name="toc"><DIV align="CENTER" style="page-break-before:always"><U><B>TABLE OF CONTENTS</B></U></DIV></A>

<P><CENTER>
<TABLE border="0" width="90%" cellpadding="0" cellspacing="0">
<TR>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
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	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART I Information Required in the Section 10(a) Prospectus</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#001">Item&nbsp;1. Plan Information*</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;2. Registrant Information and Employee Plan Annual Information*</A></TD></TR>
<TR><TD colspan="9"><A HREF="#003">PART II Information Required in the Registration Statement</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;3. Incorporation of Documents by Reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;4. Description of Securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;5. Interests of Named Experts and Counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;6. Indemnification of Directors and Officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;7. Exemption from Registration Claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#009">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#010">Item&nbsp;9. Undertakings</A></TD></TR>
<TR><TD colspan="9"><A HREF="#011">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#012">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="f10338orexv5w1.htm">EXHIBIT 5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="f10338orexv23w1.htm">EXHIBIT 23.1</A></TD></TR>
</TABLE>
</CENTER>
<!-- /TOC -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>




<!-- link1 "PART I Information Required in the Section 10(a) Prospectus" -->
<DIV align="left"><A NAME="000"></A></DIV>

<P align="center" style="font-size: 10pt"><B>PART I<BR>
Information Required in the Section&nbsp;10(a) Prospectus</B>


<!-- link2 "Item&nbsp;1. Plan Information*" -->
<DIV align="left"><A NAME="001"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;1. <U>Plan Information*</U>


<!-- link2 "Item&nbsp;2. Registrant Information and Employee Plan Annual Information*" -->
<DIV align="left"><A NAME="002"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;2. <U>Registrant Information and Employee Plan Annual Information</U>*


<P align="left" style="font-size: 10pt">*Information required by Part&nbsp;I to be contained in the Section 10(a) prospectus is omitted from the
Registration Statement in accordance with the Note to Part&nbsp;I of Form S-8.


<!-- link1 "PART II Information Required in the Registration Statement " -->
<DIV align="left"><A NAME="003"></A></DIV>

<P align="center" style="font-size: 10pt"><B>PART II</B>



<P align="center" style="font-size: 10pt"><B>Information Required in the Registration Statement</B>


<!-- link2 "Item&nbsp;3. Incorporation of Documents by Reference" -->
<DIV align="left"><A NAME="004"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;3. <U>Incorporation of Documents by Reference</U>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The following documents filed by the Registrant under the Securities Exchange Act of 1934, as
amended (the &#147;Exchange Act&#148;), with the Securities and Exchange Commission (the &#147;Commission&#148;) are
incorporated herein by reference:


<P>
<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">

<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">a.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s prospectus filed with the Commission pursuant to Rule 424(b)
promulgated under the Securities Act filed on June&nbsp;16, 2005, in connection with the
Registrant&#146;s Registration No.&nbsp;333-123154, in which there is set forth the audited
consolidated financial statements for the Registrant&#146;s fiscal year ended March&nbsp;31,
2005;</TD>
</TR>

<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">b.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>All reports filed by the Registrant pursuant to Section 13(a) or 15(d) of the
Exchange Act since the end of the fiscal year covered by the Registrant&#146;s latest annual
report; and</TD>
</TR>

<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
<TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="2%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">c.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>Description of the Registrant&#146;s common stock contained in a registration
statement filed with the Commission on Form 8-A on May&nbsp;23, 2005, including any
amendments or reports filed for the purpose of updating such descriptions.</TD>
</TR>

</TABLE>


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents subsequently filed by the Registrant pursuant to Sections&nbsp;13(a), 13(c), 14, and
15(d) of the Exchange Act, prior to the filing of a post-effective amendment which indicates that
all securities offered have been sold or which deregisters all securities then remaining unsold,
shall be deemed to be incorporated by reference in this Registration Statement and to be a part
hereof from the date of filing of such documents.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Any statement contained in a document incorporated by reference herein shall be deemed to be
modified or superseded for purposes of this Registration Statement to the extent that a


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<P align="left" style="font-size: 10pt">statement contained in a subsequently filed document which is also incorporated by reference
herein modifies or supersedes such statement.

<!-- link2 "Item&nbsp;4. Description of Securities" -->
<DIV align="left"><A NAME="005"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;4. <U>Description of Securities</U>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

<!-- link2 "Item&nbsp;5. Interests of Named Experts and Counsel" -->
<DIV align="left"><A NAME="006"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;5. <U>Interests of Named Experts and Counsel</U>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

<!-- link2 "Item&nbsp;6. Indemnification of Directors and Officers" -->
<DIV align="left"><A NAME="007"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;6. <U>Indemnification of Directors and Officers</U>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145(a) of the Delaware General Corporation Law (the &#147;DGCL&#148;) provides that a Delaware
corporation may indemnify any person who was or is a party or is threatened to be made a party to
any threatened, pending or completed action, suit or proceeding, whether civil, criminal,
administrative or investigative (other than an action by or in the right of the corporation) by
reason of the fact that such person is or was a director, officer, employee or agent of the
corporation or is or was serving at the request of the corporation as a director, officer, employee
or agent of another corporation or enterprise, against expenses, judgments, fines and amounts paid
in settlement actually and reasonably incurred by such person in connection with such action, suit
or proceeding if such person acted in good faith and in a manner he or she reasonably believed to
be in or not opposed to the best interests of the corporation, and, with respect to any criminal
action or proceeding, had no cause to believe his or her conduct was unlawful.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145(b) of the DGCL provides that a Delaware corporation may indemnify any person
who was or is a party or is threatened to be made a party to any threatened, pending or completed
action or suit by or in the right of the corporation to procure a judgment in its favor by reason
of the fact that such person acted in any of the capacities set forth above, against expenses
actually and reasonably incurred by such person in connection with the defense or settlement of
such action or suit if such person acted under similar standards, except that no indemnification
may be made in respect of any claim, issue or matter as to which such person shall have been
adjudged to be liable to the corporation unless and only to the extent that the court in which such
action or suit was brought shall determine that despite the adjudication of liability, such person
is fairly and reasonably entitled to be indemnified for such expenses which the court shall deem
proper.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145 of the DGCL further provides that to the extent a director or officer of a
Delaware corporation has been successful in the defense of any action, suit or proceeding referred
to in subsections 145(a) and (b)&nbsp;or in the defense of any claim, issue or matter therein, such
person shall be indemnified against expenses actually and reasonably incurred by such person in
connection therewith; that indemnification provided for by Section&nbsp;145 shall not be


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<P align="left" style="font-size: 10pt">deemed exclusive of any other rights to which the indemnified party may be entitled; and that
the corporation may purchase and maintain insurance on behalf of a director or officer of the
corporation against any liability asserted against such person or incurred by him or her in any
such capacity or arising out of his or her status as such whether or not the corporation would have
the power to indemnify such person against such liabilities under Section&nbsp;145.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;102(b)(7) of the DGCL permits a corporation to provide in its certificate of
incorporation that a director of the corporation shall not be personally liable to the corporation
or its stockholders for monetary damages for breach of fiduciary duty as a director, except for
liability for (i)&nbsp;any breach of the director&#146;s duty of loyalty to the corporation or its
stockholders, (ii)&nbsp;acts or omissions not in good faith or that involve intentional misconduct or a
knowing violation of law, (iii)&nbsp;payments of unlawful dividends or unlawful stock repurchases or
redemptions, or (iv)&nbsp;any transaction from which the director derived an improper personal benefit.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Article&nbsp;VIII of the Registrant&#146;s Amended and Restated Bylaws requires indemnification to the
fullest extent permitted under the DGCL. Subject to any restrictions imposed by Delaware law, the
Bylaws provide an unconditional right to indemnification and advancement for all expenses and
liabilities) actually and reasonably incurred or suffered by the indemnitee in connection with any
actual or threatened action, suit or proceeding by reason of the fact that such person is or was a
director or officer of the Registrant or, being or having been such a director, officer or an
employee of the Registrant, he or she is or was serving at the request of the Registrant as a
director, officer, employee or agent of another corporation or other entity. However, approval by
the Registrant is required with respect to indemnification for any proceeding initiated by a person
entitled to indemnification. The Bylaws also provide that the Registrant may, by action of the
board of directors, provide indemnification to its employees and agents with the same scope and
effect as the foregoing indemnification of directors and officers.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Eighth Article of the Registrant&#146;s Amended and Restated Certificate of Incorporation
provides that, to the fullest extent that the DGCL, as it now exists or may hereafter be amended,
permits the limitation or elimination of the liability of directors, a director of the Registrant
will not be liable to the Registrant or its stockholders for monetary damages for breach of
fiduciary duty as a director. Any amendment to or repeal of such Eighth Article shall not adversely
affect any right or protection of a director of the Registrant for or with respect to any acts or
omissions of such director occurring prior to such amendment or repeal.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant has also entered into separate indemnification agreements with its directors
and executive officers, in addition to the indemnification provided for in the By-laws and Restated
Certificate of Incorporation. These agreements, among other things, provide that the Registrant
will indemnify its directors and executive officers for certain expenses, including attorneys&#146;
fees, judgments, fines and settlement amounts incurred by a director or executive officer in any
action or proceeding arising out of such person&#146;s services as one of its directors or executive
officers, or any of its subsidiaries or any other company or enterprise to which the


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<P align="left" style="font-size: 10pt">person provides services at the Registrant&#146;s request.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s officers and directors are covered by insurance (with certain exceptions and
limitations) that indemnifies them against losses for which the Registrant grants them
indemnification and for which they become legally obligated to pay on account of claims made
against them for &#147;wrongful acts&#148; committed before or during the policy period.

<!-- link2 "Item&nbsp;7. Exemption from Registration Claimed" -->
<DIV align="left"><A NAME="008"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;7. <U>Exemption from Registration Claimed</U>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.

<!-- link2 "Item&nbsp;8. Exhibits" -->
<DIV align="left"><A NAME="009"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;8. <U>Exhibits</U>


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="90%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" colspan="3"><B><U>Exhibit Number</U></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left"><B><U>Name</U></B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">5.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of Orrick, Herrington &#038; Sutcliffe LLP.</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>

<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Independent Registered Public Accounting Firm.</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">23.2</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Orrick, Herrington &#038; Sutcliffe LLP
is contained in Exhibit&nbsp;5.1.</DIV></TD>
</TR>
<TR valign="bottom">
    <TD nowrap align="right" valign="top">&nbsp;</TD>
    <TD align="right" valign="top">24.1</TD>
    <TD nowrap valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Power of Attorney is included on signature page
of this Registration Statement.</DIV></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<!-- link2 "Item&nbsp;9. Undertakings" -->
<DIV align="left"><A NAME="010"></A></DIV>

<P align="left" style="font-size: 10pt">Item&nbsp;9. <U>Undertakings</U>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(a)&nbsp;The undersigned Registrant hereby undertakes:


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;To file, during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement:


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;to include any prospectus required by Section&nbsp;10(a)(3) of the Securities Act;


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;to reflect in the prospectus any facts or events arising after the effective date of the
Registration Statement (or the most recent post-effective amendment thereof) which, individually or
in the aggregate, represent a fundamental change in the information set forth in the Registration
Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered
(if the dollar value of securities offered would not exceed that which was registered) and any
deviation from the low or high end of the estimated maximum offering range may be reflected in the
form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume and price represent no more than a 20% change in the maximum aggregate offering
price set forth in the &#147;Calculation of Registration Fee&#148; table in the effective Registration
Statement;


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">

<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)&nbsp;to include any material information with respect to the plan of distribution not
previously disclosed in the Registration Statement or any material change to such information in
the Registration Statement;

<P align="left" style="font-size: 10pt">provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in periodic
reports filed by the Registrant pursuant to Section&nbsp;13 or Section 15(d) of the Exchange Act that
are incorporated by reference in the Registration Statement.



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(b)&nbsp;The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant&#146;s annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act that is incorporated by reference in the
Registration Statement shall be deemed to be a new Registration Statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(c)&nbsp;Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and is,
therefore, unenforceable. In the event that a claim for indemnification against such liabilities
(other than the payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action, suit or proceeding)
is asserted by such director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="011"></A></DIV>

<P align="center" style="font-size: 10pt"><B>SIGNATURES</B>



<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8, and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of Sunnyvale, State of California on June
29, 2005.


<TABLE width="100%" border="0" cellspacing="0" cellpadding="0" style="font-size: 10pt">
<TR>
    <TD width="48%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="35%">&nbsp;</TD>
    <TD width="15%">&nbsp;</TD>
</TR>
<TR>
    <TD valign="top" align="left">&nbsp;</TD>
    <TD colspan="3" align="left"><B>MICRUS ENDOVASCULAR CORPORATION</B><BR>
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD valign="top">By:&nbsp;&nbsp;</TD>
    <TD colspan="2" style="border-bottom: 1px solid #000000" align="left">/s/JOHN T. KILCOYNE
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">John T. Kilcoyne&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">President and Chief Executive Officer&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<P align="center" style="font-size: 10pt"><B>POWER OF ATTORNEY</B>



<P align="left" style="font-size: 10pt"><B>KNOW BY ALL PERSONS BY THESE PRESENTS:</B>




<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;That the undersigned officers and directors of Micrus Endovascular Corporation, a Delaware
corporation, do hereby constitute and appoint John T. Kilcoyne and Robert A. Stern, or any of them,
the lawful attorney-in-fact and agent with full power and authority to do any and all acts and
things and to execute any and all instruments which said attorney and agent determines may be
necessary or advisable or required to enable said corporation to comply with the Securities Act of
1933, as amended, and any rules or regulations or requirements of the Securities and Exchange
Commission in connection with this Registration Statement. Without limiting the generality of the
foregoing power and authority, the powers granted include the power and authority to sign the names
of the undersigned officers and directors in the capacities indicated below to this Registration
Statement, to any and all amendments, both pre-effective and post-effective, and supplements to
this Registration Statement, and to any and all instruments or documents filed as part of or in
conjunction with this Registration Statement or amendments or supplements thereof, and each of the
undersigned hereby ratifies and confirms all that said attorney and agent shall do or cause to be
done by virtue hereof. This Power of Attorney may be signed in several counterparts.


<P align="left" style="font-size: 10pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;IN WITNESS WHEREOF, each of the undersigned has executed this Power of Attorney as of the date
indicated.


<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">
<P align="left" style="font-size: 10pt">Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement
has been signed below by the following persons in the capacities and on the dates indicated.


<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom">
    <TD width="43%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="43%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="8%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center"><B><U>Signatures</U></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B><U>Title</U></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B><U>Date</U></B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/JOHN T. KILCOYNE
<HR size="1" noshade color="#000000">
John T. Kilcoyne
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">President and Chief Executive Officer and
Director (Principal Executive Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June&nbsp;29,&nbsp;2005</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ROBERT A. STERN
<HR size="1" noshade color="#000000">
Robert A. Stern
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Executive Vice President, Chief Financial
Officer and Secretary (Principal
Financial and Principal Accounting
Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June&nbsp;29, 2005</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/L. NELSON HOPKINS, M.D.
<HR size="1" noshade color="#000000">
L. Nelson Hopkins, M.D.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June&nbsp;29, 2005</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/FRED HOLUBOW
<HR size="1" noshade color="#000000">
Fred Holubow
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June&nbsp;29, 2005</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ FRANCIS J. SHAMMO
<HR size="1" noshade color="#000000">
Francis J. Shammo
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June&nbsp;29, 2005</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ JEFFREY H. THIEL
<HR size="1" noshade color="#000000">
Jeffrey H. Thiel
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">June&nbsp;29, 2005</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="left" style="font-size: 10pt">A majority of the Board of Directors



<P align="center" style="font-size: 10pt">&nbsp;
</DIV>

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<DIV style="font-family: 'Times New Roman',Times,serif">



<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="012"></A></DIV>

<P align="center" style="font-size: 10pt"><B><U>EXHIBIT INDEX</U></B>


<DIV align="center">
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<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" colspan="3"><B><U>Exhibit Number</U></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="left"><B><U>Name</U></B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B><U>Page Number</U></B></TD>
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    <TD align="right" valign="top">5.1</TD>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Opinion of Orrick, Herrington &#038; Sutcliffe LLP.</DIV></TD>
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    <TD align="right" valign="top">23.1</TD>
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<TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Independent Registered Public Accounting Firm.</DIV></TD>
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    <TD align="right" valign="top">23.2</TD>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Consent of Orrick, Herrington &#038; Sutcliffe LLP
is contained in Exhibit&nbsp;5.1.</DIV></TD>
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    <TD align="right" valign="top">24.1</TD>
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    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Power of Attorney is included on signature
page of this Registration Statement.</DIV></TD>
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sv8
Table of Contents
As filed with the
Securities and Exchange Commission on June 30, 2005
Registration No. 333-
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF 1933
Micrus Endovascular Corporation
(Exact name of registrant as specified in its charter)
Delaware
94-3409596
(State or other jurisdiction
of incorporation or organization)
(IRS Employer Identification No.)
610 Palomar Avenue, Sunnyvale, CA 94085
(Address of principal executive offices) (Zip Code)
1998 Stock Plan
2005 Equity Incentive Plan
2005 Employee Stock Purchase Plan
(Full title of the Plans)
John T. Kilcoyne
President and Chief Executive Officer
Micrus Endovascular Corporation
610 Palomar Avenue, Sunnyvale, CA 94085
(Name and address of agent for service)
(408) 830-5900
(Telephone number, including area code, of agent for service)
Copy to:
Glen R. Van Ligten, Esq.
Orrick, Herrington & Sutcliffe LLP
1020 Marsh Road, Menlo Park
,
CA 94025
(650) 614-7400
CALCULATION OF REGISTRATION FEE
Title of Securities
Amount
Proposed Maximum
Proposed Maximum
to be
to be
Offering Price
Aggregate Offering
Amount of
Registered
Registered
(1)
Per Share
Price
Registration Fee
Common Stock $0.01
par value per share
(1998 Stock Plan)
2,355,373
$
4.34
(2)
$
10,222,318.82
(2)
$
1,203.17
Common Stock $0.01
par value per share
(2005 Equity
Incentive Plan)
2,394,592
$
10.975
(3)
$
26,280,647.20
(3)
$
3,093.23
Common Stock $0.01
par value per share
(2005 Employee
Stock Purchase
Plan)
222,222
$
9.32875
(4)
$
2,073,053.48
(4)
$
244.00
TOTAL:
4,972,187
$
38,576,019.50
$
4,540.40
(1)
Pursuant to Rule 416 under the Securities Act of 1933, this Registration Statement also
covers additional securities that may be issued under the 1998 Stock Plan, 2005 Equity
Incentive Plan or 2005 Employee Stock Purchase Plan as a result of stock splits, stock
dividends or similar transactions.
(2)
Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended, on the basis of the weighted average per share exercise price of $4.34 as to
2,355,373 outstanding but unexercised options to purchase Common Stock of Micrus Endovascular
Corporation.
(3)
Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended, on the basis of the average of the high ($11.10)
and low ($10.85) prices per
share of Common Stock of Micrus Endovascular Corporation on
June 23, 2005, as reported by the
Nasdaq National Market System.
(4)
Calculated solely for purposes of this offering under Rule 457(h) of the Securities Act of
1933, as amended, on the basis of the average of the high ($11.10)
and low ($10.85) prices per
share of Common Stock of Micrus Endovascular Corporation on
June 23, 2005, as reported by the
Nasdaq National Market System, multiplied by 85%, which is the percentage of the trading
purchase price applicable to purchases under the referenced Plan.
TABLE OF CONTENTS
PART I Information Required in the Section 10(a) Prospectus
Item 1. Plan Information*
Item 2. Registrant Information and Employee Plan Annual Information*
PART II Information Required in the Registration Statement
Item 3. Incorporation of Documents by Reference
Item 4. Description of Securities
Item 5. Interests of Named Experts and Counsel
Item 6. Indemnification of Directors and Officers
Item 7. Exemption from Registration Claimed
Item 8. Exhibits
Item 9. Undertakings
SIGNATURES
EXHIBIT INDEX
EXHIBIT 5.1
EXHIBIT 23.1
Table of Contents
PART I
Information Required in the Section 10(a) Prospectus
Item 1.
Plan Information*
Item 2.
Registrant Information and Employee Plan Annual Information
*
*Information required by Part I to be contained in the Section 10(a) prospectus is omitted from the
Registration Statement in accordance with the Note to Part I of Form S-8.
PART II
Information Required in the Registration Statement
Item 3.
Incorporation of Documents by Reference
The following documents filed by the Registrant under the Securities Exchange Act of 1934, as
amended (the "Exchange Act"), with the Securities and Exchange Commission (the "Commission") are
incorporated herein by reference:
a.
The Registrant's prospectus filed with the Commission pursuant to Rule 424(b)
promulgated under the Securities Act filed on June 16, 2005, in connection with the
Registrant's Registration No. 333-123154, in which there is set forth the audited
consolidated financial statements for the Registrant's fiscal year ended March 31,
2005;
b.
All reports filed by the Registrant pursuant to Section 13(a) or 15(d) of the
Exchange Act since the end of the fiscal year covered by the Registrant's latest annual
report; and
c.
Description of the Registrant's common stock contained in a registration
statement filed with the Commission on Form 8-A on May 23, 2005, including any
amendments or reports filed for the purpose of updating such descriptions.
All documents subsequently filed by the Registrant pursuant to Sections 13(a), 13(c), 14, and
15(d) of the Exchange Act, prior to the filing of a post-effective amendment which indicates that
all securities offered have been sold or which deregisters all securities then remaining unsold,
shall be deemed to be incorporated by reference in this Registration Statement and to be a part
hereof from the date of filing of such documents.
Any statement contained in a document incorporated by reference herein shall be deemed to be
modified or superseded for purposes of this Registration Statement to the extent that a
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statement contained in a subsequently filed document which is also incorporated by reference
herein modifies or supersedes such statement.
Item 4.
Description of Securities
Not applicable.
Item 5.
Interests of Named Experts and Counsel
Not applicable.
Item 6.
Indemnification of Directors and Officers
Section 145(a) of the Delaware General Corporation Law (the "DGCL") provides that a Delaware
corporation may indemnify any person who was or is a party or is threatened to be made a party to
any threatened, pending or completed action, suit or proceeding, whether civil, criminal,
administrative or investigative (other than an action by or in the right of the corporation) by
reason of the fact that such person is or was a director, officer, employee or agent of the
corporation or is or was serving at the request of the corporation as a director, officer, employee
or agent of another corporation or enterprise, against expenses, judgments, fines and amounts paid
in settlement actually and reasonably incurred by such person in connection with such action, suit
or proceeding if such person acted in good faith and in a manner he or she reasonably believed to
be in or not opposed to the best interests of the corporation, and, with respect to any criminal
action or proceeding, had no cause to believe his or her conduct was unlawful.
Section 145(b) of the DGCL provides that a Delaware corporation may indemnify any person
who was or is a party or is threatened to be made a party to any threatened, pending or completed
action or suit by or in the right of the corporation to procure a judgment in its favor by reason
of the fact that such person acted in any of the capacities set forth above, against expenses
actually and reasonably incurred by such person in connection with the defense or settlement of
such action or suit if such person acted under similar standards, except that no indemnification
may be made in respect of any claim, issue or matter as to which such person shall have been
adjudged to be liable to the corporation unless and only to the extent that the court in which such
action or suit was brought shall determine that despite the adjudication of liability, such person
is fairly and reasonably entitled to be indemnified for such expenses which the court shall deem
proper.
Section 145 of the DGCL further provides that to the extent a director or officer of a
Delaware corporation has been successful in the defense of any action, suit or proceeding referred
to in subsections 145(a) and (b) or in the defense of any claim, issue or matter therein, such
person shall be indemnified against expenses actually and reasonably incurred by such person in
connection therewith; that indemnification provided for by Section 145 shall not be
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deemed exclusive of any other rights to which the indemnified party may be entitled; and that
the corporation may purchase and maintain insurance on behalf of a director or officer of the
corporation against any liability asserted against such person or incurred by him or her in any
such capacity or arising out of his or her status as such whether or not the corporation would have
the power to indemnify such person against such liabilities under Section 145.
Section 102(b)(7) of the DGCL permits a corporation to provide in its certificate of
incorporation that a director of the corporation shall not be personally liable to the corporation
or its stockholders for monetary damages for breach of fiduciary duty as a director, except for
liability for (i) any breach of the director's duty of loyalty to the corporation or its
stockholders, (ii) acts or omissions not in good faith or that involve intentional misconduct or a
knowing violation of law, (iii) payments of unlawful dividends or unlawful stock repurchases or
redemptions, or (iv) any transaction from which the director derived an improper personal benefit.
Article VIII of the Registrant's Amended and Restated Bylaws requires indemnification to the
fullest extent permitted under the DGCL. Subject to any restrictions imposed by Delaware law, the
Bylaws provide an unconditional right to indemnification and advancement for all expenses and
liabilities) actually and reasonably incurred or suffered by the indemnitee in connection with any
actual or threatened action, suit or proceeding by reason of the fact that such person is or was a
director or officer of the Registrant or, being or having been such a director, officer or an
employee of the Registrant, he or she is or was serving at the request of the Registrant as a
director, officer, employee or agent of another corporation or other entity. However, approval by
the Registrant is required with respect to indemnification for any proceeding initiated by a person
entitled to indemnification. The Bylaws also provide that the Registrant may, by action of the
board of directors, provide indemnification to its employees and agents with the same scope and
effect as the foregoing indemnification of directors and officers.
The Eighth Article of the Registrant's Amended and Restated Certificate of Incorporation
provides that, to the fullest extent that the DGCL, as it now exists or may hereafter be amended,
permits the limitation or elimination of the liability of directors, a director of the Registrant
will not be liable to the Registrant or its stockholders for monetary damages for breach of
fiduciary duty as a director. Any amendment to or repeal of such Eighth Article shall not adversely
affect any right or protection of a director of the Registrant for or with respect to any acts or
omissions of such director occurring prior to such amendment or repeal.
The Registrant has also entered into separate indemnification agreements with its directors
and executive officers, in addition to the indemnification provided for in the By-laws and Restated
Certificate of Incorporation. These agreements, among other things, provide that the Registrant
will indemnify its directors and executive officers for certain expenses, including attorneys'
fees, judgments, fines and settlement amounts incurred by a director or executive officer in any
action or proceeding arising out of such person's services as one of its directors or executive
officers, or any of its subsidiaries or any other company or enterprise to which the
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person provides services at the Registrant's request.
The Registrant's officers and directors are covered by insurance (with certain exceptions and
limitations) that indemnifies them against losses for which the Registrant grants them
indemnification and for which they become legally obligated to pay on account of claims made
against them for "wrongful acts" committed before or during the policy period.
Item 7.
Exemption from Registration Claimed
Not applicable.
Item 8.
Exhibits
Exhibit Number
Name
5.1
Opinion of Orrick, Herrington & Sutcliffe LLP.
23.1
Consent of Independent Registered Public Accounting Firm.
23.2
Consent of Orrick, Herrington & Sutcliffe LLP
is contained in Exhibit 5.1.
24.1
Power of Attorney is included on signature page
of this Registration Statement.
Item 9.
Undertakings
(a) The undersigned Registrant hereby undertakes:
(1) To file, during any period in which offers or sales are being made, a post-effective
amendment to this Registration Statement:
(i) to include any prospectus required by Section 10(a)(3) of the Securities Act;
(ii) to reflect in the prospectus any facts or events arising after the effective date of the
Registration Statement (or the most recent post-effective amendment thereof) which, individually or
in the aggregate, represent a fundamental change in the information set forth in the Registration
Statement. Notwithstanding the foregoing, any increase or decrease in volume of securities offered
(if the dollar value of securities offered would not exceed that which was registered) and any
deviation from the low or high end of the estimated maximum offering range may be reflected in the
form of prospectus filed with the Commission pursuant to Rule 424(b) if, in the aggregate, the
changes in volume and price represent no more than a 20% change in the maximum aggregate offering
price set forth in the "Calculation of Registration Fee" table in the effective Registration
Statement;
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(iii) to include any material information with respect to the plan of distribution not
previously disclosed in the Registration Statement or any material change to such information in
the Registration Statement;
provided, however, that paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if the information
required to be included in a post-effective amendment by those paragraphs is contained in periodic
reports filed by the Registrant pursuant to Section 13 or Section 15(d) of the Exchange Act that
are incorporated by reference in the Registration Statement.
(2) That, for the purpose of determining any liability under the Securities Act, each such
post-effective amendment shall be deemed to be a new registration statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
(3) To remove from registration by means of a post-effective amendment any of the securities
being registered which remain unsold at the termination of the offering.
(b) The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the Securities Act, each filing of the Registrant's annual report pursuant to
Section 13(a) or Section 15(d) of the Exchange Act that is incorporated by reference in the
Registration Statement shall be deemed to be a new Registration Statement relating to the
securities offered therein, and the offering of such securities at that time shall be deemed to be
the initial bona fide offering thereof.
(c) Insofar as indemnification for liabilities arising under the Securities Act may be
permitted to directors, officers and controlling persons of the Registrant pursuant to the
foregoing provisions, or otherwise, the Registrant has been advised that in the opinion of the
Commission such indemnification is against public policy as expressed in the Securities Act and is,
therefore, unenforceable. In the event that a claim for indemnification against such liabilities
(other than the payment by the Registrant of expenses incurred or paid by a director, officer or
controlling person of the Registrant in the successful defense of any action, suit or proceeding)
is asserted by such director, officer or controlling person in connection with the securities being
registered, the Registrant will, unless in the opinion of its counsel the matter has been settled
by controlling precedent, submit to a court of appropriate jurisdiction the question whether such
indemnification by it is against public policy as expressed in the Securities Act and will be
governed by the final adjudication of such issue.
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SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, as amended, the Registrant
certifies that it has reasonable grounds to believe that it meets all of the requirements for
filing on Form S-8, and has duly caused this Registration Statement to be signed on its behalf by
the undersigned, thereunto duly authorized, in the City of Sunnyvale, State of California on June
29, 2005.
MICRUS ENDOVASCULAR CORPORATION
By:
/s/JOHN T. KILCOYNE
John T. Kilcoyne
President and Chief Executive Officer
POWER OF ATTORNEY
KNOW BY ALL PERSONS BY THESE PRESENTS:
That the undersigned officers and directors of Micrus Endovascular Corporation, a Delaware
corporation, do hereby constitute and appoint John T. Kilcoyne and Robert A. Stern, or any of them,
the lawful attorney-in-fact and agent with full power and authority to do any and all acts and
things and to execute any and all instruments which said attorney and agent determines may be
necessary or advisable or required to enable said corporation to comply with the Securities Act of
1933, as amended, and any rules or regulations or requirements of the Securities and Exchange
Commission in connection with this Registration Statement. Without limiting the generality of the
foregoing power and authority, the powers granted include the power and authority to sign the names
of the undersigned officers and directors in the capacities indicated below to this Registration
Statement, to any and all amendments, both pre-effective and post-effective, and supplements to
this Registration Statement, and to any and all instruments or documents filed as part of or in
conjunction with this Registration Statement or amendments or supplements thereof, and each of the
undersigned hereby ratifies and confirms all that said attorney and agent shall do or cause to be
done by virtue hereof. This Power of Attorney may be signed in several counterparts.
IN WITNESS WHEREOF, each of the undersigned has executed this Power of Attorney as of the date
indicated.
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Pursuant to the requirements of the Securities Act of 1933, as amended, this Registration Statement
has been signed below by the following persons in the capacities and on the dates indicated.
Signatures
Title
Date
/s/JOHN T. KILCOYNE
John T. Kilcoyne
President and Chief Executive Officer and
Director (Principal Executive Officer)
June 29, 2005
/s/ROBERT A. STERN
Robert A. Stern
Executive Vice President, Chief Financial
Officer and Secretary (Principal
Financial and Principal Accounting
Officer)
June 29, 2005
/s/L. NELSON HOPKINS, M.D.
L. Nelson Hopkins, M.D.
Director
June 29, 2005
/s/FRED HOLUBOW
Fred Holubow
Director
June 29, 2005
/s/ FRANCIS J. SHAMMO
Francis J. Shammo
Director
June 29, 2005
/s/ JEFFREY H. THIEL
Jeffrey H. Thiel
Director
June 29, 2005
A majority of the Board of Directors
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EXHIBIT INDEX
Exhibit Number
Name
Page Number
5.1
Opinion of Orrick, Herrington & Sutcliffe LLP.
23.1
Consent of Independent Registered Public Accounting Firm.
23.2
Consent of Orrick, Herrington & Sutcliffe LLP
is contained in Exhibit 5.1.
24.1
Power of Attorney is included on signature
page of this Registration Statement.