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




<DIV align="right" style="font-size: 10pt; margin-top: 18pt"><B>As
filed with the Securities and Exchange Commission on August&nbsp;11, 2006</B>
</DIV>


<DIV align="right" style="font-size: 10pt; margin-top: 0pt"><B>Registration No.&nbsp;333- &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</B></DIV>


<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>




<DIV align="center" style="font-size: 14pt; margin-top: 12pt"><B>UNITED STATES SECURITIES AND EXCHANGE COMMISSION</B>
</DIV>

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


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 6pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>

</DIV>
<DIV align="center" style="font-size: 18pt; margin-top: 12pt"><B>FORM S-8</B>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>REGISTRATION STATEMENT<BR>
Under<BR>
The Securities Act of 1933</B></DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 6pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>

</DIV>
<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>CYTOKINETICS, INCORPORATED</B>
</DIV>

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



<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 6pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>

</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>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><B>Delaware</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>94-3291317</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>(State or other jurisdiction of</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>(I.R.S. Employer</B></TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><B>incorporation or organization)</B>
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top"><B>Identification Number)</B></TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>280 East Grand Avenue<BR>
South San Francisco, CA 94080<BR>
(Address of principal executive offices)</B></DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 6pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>

</DIV>
<DIV align="center" style="font-size: 10pt; margin-top: 6pt"><B>2004 EMPLOYEE STOCK PURCHASE PLAN<BR>
(Full title of the plans)</B></DIV>


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 6pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>

</DIV>

<DIV align="Center" style="font-size: 10pt; margin-top: 0pt"><B>James H. Sabry, M.D., Ph.D.<BR>
Chief Executive Officer<BR>
Cytokinetics, Incorporated<BR>
280 East Grand Avenue<BR>
South San Francisco, CA 94080<BR>
(650)&nbsp;624-3000<BR>
(Name, address, and telephone number, including area code, of agent for service)</B>

</DIV>

<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><DIV align="center"><DIV style="font-size: 3pt; margin-top: 6pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>

</DIV>

<DIV align="Center" style="font-size: 10pt; margin-top: 0pt"><I>Copy to:</I><BR>
<B>Michael J. O&#146;Donnell, Esq.<BR>
Martin J. Waters, Esq.<BR>
Gavin McCraley, Esq.<BR>
Wilson Sonsini Goodrich &#038; Rosati<BR>
Professional Corporation<BR>
650 Page Mill Road<BR>
Palo Alto, CA 94304-1050<BR>
(650)&nbsp;493-9300</B><BR>
<BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 6pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV>

</DIV>

<DIV align="Center" style="font-size: 10pt; margin-top: 6pt">CALCULATION OF REGISTRATION FEE

</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="1%">&nbsp;</TD>
    <TD width="54%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="7%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD><!-- VRule -->
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>

    <TD width="1%">&nbsp;</TD>
</TR><TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="21" style="border-bottom: 3px double #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">    <TD width="1%">&nbsp;</TD>

    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&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>Title of</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3">&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>Securities</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center"><B>Amount</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Offering</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Aggregate</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount of</B></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"><B>to be</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Price Per</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Offering</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Registration</B></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"><B>Registered (1)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Share (2)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Price</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Fee</B></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">2004 Employee
Stock Purchase
Plan, Common Stock
$0.001 par value</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 align="center" valign="top" style="border-top: 2px solid #000000" nowrap>1,000,000(3) shares</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 colspan="3" align="center" valign="top" style="border-top: 2px solid #000000">$4.65</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 colspan="3" align="center" valign="top" style="border-top: 2px solid #000000">$4,650,000</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="right" valign="top" style="border-top: 2px solid #000000">$</TD>
    <TD align="right" valign="top" style="border-top: 2px solid #000000">497.55</TD>
    <TD valign="top" 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="21" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

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


<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 6pt; width: 18%; border-top: 0px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>This Registration Statement shall also cover any additional shares of the Registrant&#146;s
Common Stock that became issuable under the Registrant&#146;s 2004 Employee Stock Purchase Plan by
reason of any stock dividend, stock split, recapitalization or any similar transaction
effected without the Registrant&#146;s receipt of consideration.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Estimated in accordance with Rule 457(h) solely for the purpose of calculating the total
registration fee. The computation is based upon the average of the high and low prices of the
Common Stock as reported on The Nasdaq Stock Market LLC on August&nbsp;8, 2006, multiplied by 85%,
which is the percentage of trading purchase price applicable to purchases under the referenced
Plan.</TD>
</TR>

<TR style="font-size: 3pt"><TD>&nbsp;</TD></TR>

<TR valign="top">
    <TD nowrap align="left">(3)</TD>
    <TD>&nbsp;</TD>
    <TD>Represents an additional 1,000,000 shares of Common Stock available for issuance under the
Registrant&#146;s 2004 Employee Stock Purchase Plan, as amended.</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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<H5 align="left" style="page-break-before:always">&nbsp;</H5><P>

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







<DIV align="left">
<!-- TOC -->
</DIV>
<DIV align="left">
<A name="tocpage"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>TABLE OF CONTENTS</B>
</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="100%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#101">PART II</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#102">INFORMATION REQUIRED IN REGISTRATION STATEMENT</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#103">Item&nbsp;3. Incorporation of Documents by Reference.</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#104">Item&nbsp;5. Interests of Named Experts and Counsel.</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#105">Item&nbsp;8. Exhibits.</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:30px; text-indent:-15px"><A href="#106">Item&nbsp;9. Undertakings.</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#107">SIGNATURES</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#108">POWER OF ATTORNEY</A></DIV></TD>
</TR>
<TR valign="bottom">
    <TD><DIV style="margin-left:15px; text-indent:-15px"><A href="#109">INDEX TO EXHIBITS</A></DIV></TD>
</TR>
<!-- End Table Body -->
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="f22990exv5w1.htm">EXHIBIT 5.1</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="f22990exv10w4.htm">EXHIBIT 10.4</A></FONT></TD></TR>
<TR><TD colspan="9"><FONT size="2">&nbsp;<A HREF="f22990exv23w1.htm">EXHIBIT 23.1</A></FONT></TD></TR>
</TABLE>
</DIV>

<DIV align="left">
<!-- /TOC -->
</DIV>


<P align="center" style="font-size: 10pt">2&nbsp;
</DIV>

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

<DIV align="left">
<!-- /TOC -->
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>Statement Under General Instruction E<BR>
Registration of Additional Securities</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Unless as noted herein, the contents of the Cytokinetics, Incorporated&#146;s (the &#147;Company&#148;) Form
S-8 Registration Statement (File No.&nbsp;333-115146) are incorporated by reference into this
Registration Statement. The information called for in Part&nbsp;I of Form S-8 is not being filed with or
included in this Registration Statement on Form S-8 in accordance with the rules and regulations of
the Securities and Exchange Commission.
</DIV>

<P align="center" style="font-size: 10pt">3
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left">
<A name="101"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>PART II</B>
</DIV>

<DIV align="left">
<A name="102"></A>
</DIV>
<DIV align="center" style="font-size: 10pt"><B>INFORMATION REQUIRED IN REGISTRATION STATEMENT</B></DIV>


<DIV align="left">
<A name="103"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;3. Incorporation of Documents by Reference.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;There are hereby incorporated by reference in this Registration Statement the following
documents and information heretofore filed by the Company with the Securities and Exchange
Commission:
</DIV>

<DIV style="margin-top: 6pt">
<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">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Annual Report filed on Form 10-K for the fiscal year ended December&nbsp;31, 2005.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&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">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Definitive Proxy Statement on Schedule&nbsp;14A, filed on April&nbsp;4, 2006.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&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">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Quarterly Report filed on Form 10-Q for the fiscal quarter ended March&nbsp;31,
2006.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&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">(4)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Quarterly Report filed on Form 10-Q for the fiscal quarter ended June&nbsp;30,
2006.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&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">(5)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Company&#146;s Current Reports on Form 8-K dated January&nbsp;18, 2006, January&nbsp;20, 2006, January
31, 2006, February&nbsp;10, 2006, March&nbsp;7, 2006, March&nbsp;22, 2006, March&nbsp;30, 2006, April&nbsp;27, 2006,
June&nbsp;7, 2006, June&nbsp;19, 2006, June&nbsp;29, 2006 and July&nbsp;27, 2006.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&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">(6)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The description of the Company&#146;s Common Stock contained in the Company&#146;s Registration
Statement on Form 8-A filed pursuant to Section 12(g) of the Exchange Act, as amended, and as
declared effective on April&nbsp;29, 2004.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All documents filed by the Company pursuant to Sections&nbsp;13(a), 13(c), 14 and 15(d) of the
Securities Exchange Act of 1934 on or after the date of this Registration Statement and 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 part hereof from the date of filing of such
documents.
</DIV>
<DIV align="left">
<A name="104"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;5. Interests of Named Experts and Counsel.</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Certain members of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation, and investment
partnerships of which such persons are partners, beneficially own 431 shares of the Company&#146;s
Common Stock.
</DIV>
<DIV align="left">
<A name="105"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;8. Exhibits.</B>
</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="6%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1 (1)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Specimen Common Stock Certificate.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2004 Employee Stock Purchase Plan, as amended through July&nbsp;19, 2006.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation (see Exhibit&nbsp;5.1).</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (see signature page).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">
<TR>
    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Incorporated by reference from our registration statement on Form S-1, registration number
333-112261, declared effective by the Securities and Exchange Commission on April&nbsp;29, 2004.</TD>
</TR>

</TABLE>


<DIV align="left">
<A name="106"></A>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;9. Undertakings.</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">A. The undersigned Registrant hereby undertakes:
</DIV>


<DIV style="margin-top: 6pt">
<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">(1)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To file, during any period in which offers or sales are being made, a
post-effective amendment to this Registration Statement:</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<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="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(i)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>To include any prospectus required by Section&nbsp;10(a)(3) of the
Securities Act;</TD>
</TR>

</TABLE>
</DIV>
<P align="center" style="font-size: 10pt">4
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

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


<DIV style="margin-top: 6pt"><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="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(ii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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
total dollar value of the 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 a 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;</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&nbsp;</TD>
</TR><TR valign="top" style="font-size: 10pt; color: #000000; background: transparent">
    <TD width="6%" style="background: transparent">&nbsp;</TD>
    <TD width="3%" nowrap align="left">(iii)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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;</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<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"><I>&nbsp;</I></TD>
    <TD width="1%"><I>&nbsp;</I></TD>
    <TD><I>Provided, however</I>, 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 with or furnished to the Commission 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.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&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">(2)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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.</TD>
</TR>

<TR>
    <TD style="font-size: 6pt">&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">(3)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<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="1%" nowrap align="left">B.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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 1(d) of the Exchange Act (and, where applicable, each filing of an employee
benefit plan&#146;s annual report pursuant to 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 the time shall be deemed to be the initial bona fide offering thereof.</TD>
</TR>

</TABLE>
</DIV>

<DIV style="margin-top: 6pt">
<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="1%" nowrap align="left">C.</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>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 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.</TD>
</TR>

</TABLE>
</DIV>
<P align="center" style="font-size: 10pt">5
</DIV>

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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

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


<DIV style="margin-top: 6pt"><TABLE width="100%" border="0" cellpadding="0" cellspacing="0" style="font-size: 10pt">



</TABLE>
</DIV>
<DIV align="left">
<A name="107"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>SIGNATURES</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, the Registrant, Cytokinetics,
Incorporated, a corporation organized and existing under the laws of the State of Delaware,
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 South San Francisco, State of
California, on this 11th day of August, 2006.
</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="48%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="1%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="33%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="14%">&nbsp;</TD>
</TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="3" valign="top" align="left">CYTOKINETICS, INCORPORATED</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>
    <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">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">By:
</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">/s/ James H. Sabry
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
James H. Sabry, M.D., Ph.D.
</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">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Executive Officer</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">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(Principal Executive Officer)</TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="left">
<A name="108"></A>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>POWER OF ATTORNEY</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes
and appoints James H. Sabry and Sharon Surrey-Barbari, jointly and severally, as his
attorneys-in-fact, with full power of substitution in each, for him in any and all capacities to
sign any amendments to this Registration Statement on Form S-8, and to file the same, with all
exhibits thereto and other documents in connection therewith, with the Securities and Exchange
Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his
substitutes, may do or cause to be done by virtue hereof.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed below by the following persons in the capacities and on the dates indicated.
</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="40%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="40%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="16%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Signature</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Title</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Date</B></TD>
</TR>
<TR style="font-size: 3pt"><TD align="left" valign="top">&nbsp;</TD></TR>
<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ James H. Sabry
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(James H. Sabry, M.D., Ph.D.)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Executive Officer and
Director (Principal Executive
Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">August&nbsp;11 , 2006</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" 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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Sharon Surrey-Barbari
<DIV style="font-size: 1pt; border-top: 1px solid #000000">&nbsp;</DIV>
(Sharon Surrey-Barbari)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Financial Officer
(Principal Financial and
Accounting Officer)
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">August&nbsp;11 , 2006</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" 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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Stephen Dow
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">August&nbsp;11, 2006</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000"><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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">(Stephen Dow)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" 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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ A. Grant Heidrich
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">August&nbsp;11, 2006</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000"><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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">(A. Grant Heidrich, III)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" 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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ Charles Homcy
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">August&nbsp;11, 2006</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000"><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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">(Charles Homcy, M.D.)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" 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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000"><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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">(Mark McDade)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" 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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">&nbsp;
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000"><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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">(Michael Schmertzler)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom"><!-- Blank Space -->
    <TD align="center" 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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">/s/ James Spudich, Ph.D.
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director
</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">August 11, 2006</TD>
</TR>
<TR style="font-size: 1px">
    <TD align="center" valign="top" style="border-top: 1px solid #000000"><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="center" valign="top">&nbsp;</TD>
</TR>
<TR valign="bottom">
    <TD align="center" valign="top"><DIV style="margin-left:0px; text-indent:-0px">(James Spudich, Ph.D.)</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD align="center" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


<P align="center" style="font-size: 10pt">6
</DIV>

<!-- PAGEBREAK -->
<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#tocpage">Table of Contents</A></H5><P>

<DIV style="font-family: 'Times New Roman',Times,serif">
<DIV align="left">
<A name="109"></A>
</DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>INDEX TO EXHIBITS</B>
</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="6%">&nbsp;</TD>
    <TD width="2%">&nbsp;</TD>
    <TD width="92%">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left"><B>Exhibit</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center">&nbsp;</TD>
</TR>
<TR style="font-size: 8pt" valign="bottom">
    <TD nowrap align="left" style="border-bottom: 1px solid #000000"><B>Number</B></TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" style="border-bottom: 1px solid #000000"><B>Description</B></TD>
</TR>

<!-- End Table Head -->
<!-- Begin Table Body -->
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1 (1)
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Specimen Common Stock Certificate.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">5.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Opinion of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">10.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2004 Employee Stock Purchase Plan, as amended through July&nbsp;19, 2006.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">23.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Consent of Wilson Sonsini Goodrich &#038; Rosati, Professional Corporation (see Exhibit&nbsp;5.1).</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">24.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Power of Attorney (see signature page).</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>



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<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
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    <TD width="3%"></TD>
    <TD width="1%"></TD>
    <TD width="96"></TD>
</TR>

<TR valign="top">
    <TD nowrap align="left">(1)</TD>
    <TD>&nbsp;</TD>
    <TD>Incorporated by reference from our registration statement on Form S-1, registration number
333-112261, declared effective by the Securities and Exchange Commission on April&nbsp;29, 2004.</TD>
</TR>

</TABLE>


<P align="center" style="font-size: 10pt">7
</DIV>

</BODY>
</HTML>
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sv8
Table of Contents
As
filed with the Securities and Exchange Commission on August 11, 2006
Registration No. 333-
UNITED STATES SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
Under
The Securities Act of 1933
CYTOKINETICS, INCORPORATED
(Exact name of Registrant as specified in its charter)
Delaware
94-3291317
(State or other jurisdiction of
(I.R.S. Employer
incorporation or organization)
Identification Number)
280 East Grand Avenue
South San Francisco, CA 94080
(Address of principal executive offices)
2004 EMPLOYEE STOCK PURCHASE PLAN
(Full title of the plans)
James H. Sabry, M.D., Ph.D.
Chief Executive Officer
Cytokinetics, Incorporated
280 East Grand Avenue
South San Francisco, CA 94080
(650) 624-3000
(Name, address, and telephone number, including area code, of agent for service)
Copy to:
Michael J. O'Donnell, Esq.
Martin J. Waters, Esq.
Gavin McCraley, Esq.
Wilson Sonsini Goodrich & Rosati
Professional Corporation
650 Page Mill Road
Palo Alto, CA 94304-1050
(650) 493-9300
CALCULATION OF REGISTRATION FEE
Proposed
Proposed
Title of
Maximum
Maximum
Maximum
Securities
Amount
Offering
Aggregate
Amount of
to be
to be
Price Per
Offering
Registration
Registered
Registered (1)
Share (2)
Price
Fee
2004 Employee
Stock Purchase
Plan, Common Stock
$0.001 par value
1,000,000(3) shares
$4.65
$4,650,000
$
497.55
(1)
This Registration Statement shall also cover any additional shares of the Registrant's
Common Stock that became issuable under the Registrant's 2004 Employee Stock Purchase Plan by
reason of any stock dividend, stock split, recapitalization or any similar transaction
effected without the Registrant's receipt of consideration.
(2)
Estimated in accordance with Rule 457(h) solely for the purpose of calculating the total
registration fee. The computation is based upon the average of the high and low prices of the
Common Stock as reported on The Nasdaq Stock Market LLC on August 8, 2006, multiplied by 85%,
which is the percentage of trading purchase price applicable to purchases under the referenced
Plan.
(3)
Represents an additional 1,000,000 shares of Common Stock available for issuance under the
Registrant's 2004 Employee Stock Purchase Plan, as amended.
TABLE OF CONTENTS
PART II
INFORMATION REQUIRED IN REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
Item 5. Interests of Named Experts and Counsel.
Item 8. Exhibits.
Item 9. Undertakings.
SIGNATURES
POWER OF ATTORNEY
INDEX TO EXHIBITS
EXHIBIT 5.1
EXHIBIT 10.4
EXHIBIT 23.1
2
Table of Contents
Statement Under General Instruction E
Registration of Additional Securities
Unless as noted herein, the contents of the Cytokinetics, Incorporated's (the "Company") Form
S-8 Registration Statement (File No. 333-115146) are incorporated by reference into this
Registration Statement. The information called for in Part I of Form S-8 is not being filed with or
included in this Registration Statement on Form S-8 in accordance with the rules and regulations of
the Securities and Exchange Commission.
3
Table of Contents
PART II
INFORMATION REQUIRED IN REGISTRATION STATEMENT
Item 3. Incorporation of Documents by Reference.
There are hereby incorporated by reference in this Registration Statement the following
documents and information heretofore filed by the Company with the Securities and Exchange
Commission:
(1)
The Company's Annual Report filed on Form 10-K for the fiscal year ended December 31, 2005.
(2)
The Company's Definitive Proxy Statement on Schedule 14A, filed on April 4, 2006.
(3)
The Company's Quarterly Report filed on Form 10-Q for the fiscal quarter ended March 31,
2006.
(4)
The Company's Quarterly Report filed on Form 10-Q for the fiscal quarter ended June 30,
2006.
(5)
The Company's Current Reports on Form 8-K dated January 18, 2006, January 20, 2006, January
31, 2006, February 10, 2006, March 7, 2006, March 22, 2006, March 30, 2006, April 27, 2006,
June 7, 2006, June 19, 2006, June 29, 2006 and July 27, 2006.
(6)
The description of the Company's Common Stock contained in the Company's Registration
Statement on Form 8-A filed pursuant to Section 12(g) of the Exchange Act, as amended, and as
declared effective on April 29, 2004.
All documents filed by the Company pursuant to Sections 13(a), 13(c), 14 and 15(d) of the
Securities Exchange Act of 1934 on or after the date of this Registration Statement and 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 part hereof from the date of filing of such
documents.
Item 5. Interests of Named Experts and Counsel.
Certain members of Wilson Sonsini Goodrich & Rosati, Professional Corporation, and investment
partnerships of which such persons are partners, beneficially own 431 shares of the Company's
Common Stock.
Item 8. Exhibits.
Exhibit
Number
Description
4.1 (1)
Specimen Common Stock Certificate.
5.1
Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
10.4
2004 Employee Stock Purchase Plan, as amended through July 19, 2006.
23.1
Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.
23.2
Consent of Wilson Sonsini Goodrich & Rosati, Professional Corporation (see Exhibit 5.1).
24.1
Power of Attorney (see signature page).
(1)
Incorporated by reference from our registration statement on Form S-1, registration number
333-112261, declared effective by the Securities and Exchange Commission on April 29, 2004.
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;
4
Table of Contents
(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
total dollar value of the 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 a 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;
(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 with or furnished to the Commission 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 1(d) of the Exchange Act (and, where applicable, each filing of an employee
benefit plan's annual report pursuant to 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 the 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 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.
5
Table of Contents
SIGNATURES
Pursuant to the requirements of the Securities Act of 1933, the Registrant, Cytokinetics,
Incorporated, a corporation organized and existing under the laws of the State of Delaware,
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 South San Francisco, State of
California, on this 11th day of August, 2006.
CYTOKINETICS, INCORPORATED
By:
/s/ James H. Sabry
James H. Sabry, M.D., Ph.D.
Chief Executive Officer
(Principal Executive Officer)
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS, that each person whose signature appears below constitutes
and appoints James H. Sabry and Sharon Surrey-Barbari, jointly and severally, as his
attorneys-in-fact, with full power of substitution in each, for him in any and all capacities to
sign any amendments to this Registration Statement on Form S-8, and to file the same, with all
exhibits thereto and other documents in connection therewith, with the Securities and Exchange
Commission, hereby ratifying and confirming all that each of said attorneys-in-fact, or his
substitutes, may do or cause to be done by virtue hereof.
Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has
been signed below by the following persons in the capacities and on the dates indicated.
Signature
Title
Date
/s/ James H. Sabry
(James H. Sabry, M.D., Ph.D.)
Chief Executive Officer and
Director (Principal Executive
Officer)
August 11 , 2006
/s/ Sharon Surrey-Barbari
(Sharon Surrey-Barbari)
Chief Financial Officer
(Principal Financial and
Accounting Officer)
August 11 , 2006
/s/ Stephen Dow
Director
August 11, 2006
(Stephen Dow)
/s/ A. Grant Heidrich
Director
August 11, 2006
(A. Grant Heidrich, III)
/s/ Charles Homcy
Director
August 11, 2006
(Charles Homcy, M.D.)
Director
(Mark McDade)
Director
(Michael Schmertzler)
/s/ James Spudich, Ph.D.
Director
August 11, 2006
(James Spudich, Ph.D.)
6
Table of Contents
INDEX TO EXHIBITS
Exhibit
Number
Description
4.1 (1)
Specimen Common Stock Certificate.
5.1
Opinion of Wilson Sonsini Goodrich & Rosati, Professional Corporation.
10.4
2004 Employee Stock Purchase Plan, as amended through July 19, 2006.
23.1
Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.
23.2
Consent of Wilson Sonsini Goodrich & Rosati, Professional Corporation (see Exhibit 5.1).
24.1
Power of Attorney (see signature page).
(1)
Incorporated by reference from our registration statement on Form S-1, registration number
333-112261, declared effective by the Securities and Exchange Commission on April 29, 2004.
7