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<TITLE>sv8</TITLE>
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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">


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>As
filed with the Securities and Exchange Commission on March&nbsp;9, 2010</B>
</DIV>

<DIV align="right" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>Registration
No.&nbsp;333-</B><u>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;</u>
</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>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: 18pt; margin-top: 12pt"><B><DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV><BR>
FORM S-8</B>
</DIV>


<DIV align="center" style="font-size: 12pt; margin-top: 12pt"><B>REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933<BR>
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></B>
</DIV>

<DIV align="center" style="font-size: 24pt; margin-top: 12pt"><B>PROS HOLDINGS, INC.</B>
</DIV>

<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>
<!-- 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>76-0168604</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">(I.R.S. Employer Identification No.)</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>3100 MAIN STREET, SUITE 900</B><BR>
<B><I>HOUSTON, TEXAS 77002</I></B></DIV>

<DIV align="center" style="font-size: 10pt"><I>(</I>Address of principal executive offices) (Zip Code)
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>PROS HOLDINGS, INC.<BR>
2007 EQUITY INCENTIVE PLAN</B></DIV>

<DIV align="center" style="font-size: 10pt">(Full title of the Plan)
<DIV align="center"><DIV style="font-size: 3pt; margin-top: 16pt; width: 26%; border-top: 1px solid #000000">&nbsp;</DIV></DIV></DIV>


<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>ALBERT E. WINEMILLER<BR>
CHIEF EXECUTIVE OFFICER AND PRESIDENT<BR>
PROS HOLDINGS, INC.<BR>
3100 MAIN STREET, SUITE 900<BR>
HOUSTON, TEXAS 77002</B><BR>
(Name and address of agent for service)</DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 12pt"><B>(713)&nbsp;335-5151</B><BR>
(Telephone number, including area code, of agent for service)</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of &#147;large accelerated
filer,&#148; &#147;accelerated filer&#148; and &#147;smaller reporting company&#148; in Rule&nbsp;12b-2 of the Exchange Act.
(check one):
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt"><TABLE width="100%" style="font-size: 10pt; margin-top: 0pt">
<TR valign="top">
<TD>Large accelerated filer&nbsp;<FONT face="Wingdings">&#111;</FONT></TD>
<TD align="center">Accelerated filer&nbsp;<FONT face="Wingdings">&#254;</FONT>&nbsp;</TD>
<TD align="center">Non-accelerated
filer&nbsp;<FONT face="Wingdings">&#111;</FONT><BR>(do not check if a smaller reporting company)</TD>
<TD align="right">Smaller reporting company&nbsp;<FONT face="Wingdings">&#111;</FONT></TD>
</TR>
</TABLE>
</DIV>


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

<DIV align="center">
<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
<!-- Begin Table Head -->
<TR valign="bottom"  style="font-size: 0pt">
    <TD width="1%">&nbsp;</TD>
    <TD width="54%">&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="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="23" 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>&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 Maximum</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Proposed 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>&nbsp;</TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3"><B>Amount to be</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" style="border-bottom: 0px solid #000000"><B>Title of Securities to be Registered</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 0px solid #000000"><B>Registered (1)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 0px solid #000000"><B>Price Per Share (2)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 0px solid #000000"><B>Offering Price (2)</B></TD>
    <TD style="border-right: 2px solid #000000">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD nowrap align="center" colspan="3" style="border-bottom: 0px solid #000000"><B>Registration Fee</B></TD>
    <TD width="1%">&nbsp;</TD>
</TR>

<!-- End Table Head -->
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<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">2007 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">900,000</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="right" style="border-top: 2px solid #000000">$</TD>
<TD align="center" style="border-top: 2px solid #000000">8.63</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 2px solid #000000">&nbsp;</TD>
    <TD style="border-top: 2px solid #000000">&nbsp;</TD>
    <TD align="right" style="border-top: 2px solid #000000">$</TD>
<TD align="center" style="border-top: 2px solid #000000">7,767,000</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="right" style="border-top: 2px solid #000000">$</TD>

<TD align="center" style="border-top: 2px solid #000000">553.79</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: 0px solid #000000">&nbsp;</TD>

<TD style="border-top: 0px solid #000000"><DIV style="margin-left:30px; text-indent:-15px">Common Stock, $0.001 par value</DIV></TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-right: 2px solid #000000; border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD style="border-top: 0px solid #000000">&nbsp;</TD>
    <TD width="1%" style="border-top: 0px solid #000000">&nbsp;</TD>
</TR>
<TR style="font-size: 1px" valign="bottom">
    <TD nowrap align="left" colspan="23" style="border-top: 3px double #000000">&nbsp;</TD>
</TR>

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



<DIV style="margin-top: 3pt">
<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>Pursuant to Rule&nbsp;416 under the Securities Act of 1933, as amended (the
&#147;Securities Act&#148;), this Registration Statement shall also cover any additional shares of
Common Stock which become issuable under the PROS Holdings, Inc. 2007 Equity Incentive Plan by
reason of any stock dividend, stock split, recapitalization or other similar transaction
effected without the Registrant&#146;s receipt of consideration which results in an increase in the
number of the outstanding shares of Registrant&#146;s Common Stock.</TD>
</TR>

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

<TR valign="top">
    <TD nowrap align="left">(2)</TD>
    <TD>&nbsp;</TD>
    <TD>Calculated solely for purposes of this offering under Rule 457(c) and (h)&nbsp;of the
Securities Act on the basis of the average of the high and low selling price per share of
Registrant&#146;s Common Stock as reported by the New York Stock
Exchange on March&nbsp;3, 2010.</TD>
</TR>

</TABLE>
</DIV>


<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"><!-- Folio -->&nbsp;<!-- /Folio -->
</DIV>
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<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>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="3%"></TD>
	<TD width="76%"></TD>
</TR>
<TR><TD colspan="9"><A HREF="#000">PART I</A></TD></TR>
<TR><TD colspan="9"><A HREF="#001">PART II</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#002">Item&nbsp;3. Incorporation of documents by reference</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#003">Item&nbsp;4. Description of securities</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#004">Item&nbsp;5. Interests of named experts and counsel</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#005">Item&nbsp;6. Indemnification of directors and officers</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#006">Item&nbsp;7. Exemption from registration claimed</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#007">Item&nbsp;8. Exhibits</A></TD></TR>
<TR><TD></TD><TD colspan="8"><A HREF="#008">Item&nbsp;9. Undertakings.</A></TD></TR>
<TR><TD colspan="9"><A HREF="#009">SIGNATURES</A></TD></TR>
<TR><TD colspan="9"><A HREF="#010">EXHIBIT INDEX</A></TD></TR>
<TR><TD colspan="9"><A HREF="h69928exv5w1.htm">EX-5.1</A></TD></TR>
<TR><TD colspan="9"><A HREF="h69928exv23w1.htm">EX-23.1</A></TD></TR>
</TABLE>
</CENTER>
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<P><HR noshade><P>
<H5 align="left" style="page-break-before:always"><A HREF="#toc">Table of Contents</A></H5><P>





<!-- link1 "PART I" -->
<DIV align="left"><A NAME="000"></A></DIV>

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


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Information Required in the Section 10(a) Prospectus</B>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The documents containing the information specified in Part&nbsp;I, Items 1 and 2, have been or will
be delivered to participants in accordance with Form S-8 and Rule&nbsp;428 under the Securities Act of
1933, as amended (the &#147;Securities Act&#148;).
</DIV>
<!-- link1 "PART II" -->
<DIV align="left"><A NAME="001"></A></DIV>

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


<DIV align="Center" style="font-size: 10pt; margin-top: 6pt"><B>Information Required in the Registration Statement</B>
</DIV>
<!-- link2 "Item&nbsp;3. Incorporation of documents by reference" -->
<DIV align="left"><A NAME="002"></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;PROS Holdings, Inc. (the &#147;Registrant&#148;)
hereby incorporates by reference into this Registration Statement the following documents
previously filed with the 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">(a)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s latest Annual Report on Form
10-K containing audited financial statements for the fiscal year ended December&nbsp;31,
2009, filed with the Commission on March&nbsp;9, 2010.</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">(b)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>All other reports filed pursuant to Section
13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the &#147;1934 Act&#148;)
since the end of the fiscal year covered by the Registrant&#146;s Annual Report referred to
in (a)&nbsp;above; and</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">(c)</TD>
    <TD width="1%">&nbsp;</TD>
    <TD>The Registrant&#146;s Registration Statement No.
001-33554 on Form 8-A filed with the Commission on June&nbsp;21, 2007 pursuant to Section
12(b) of the 1934 Act, which describes the terms, rights and provisions applicable to
the Registrant&#146;s outstanding Common Stock.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;All reports and definitive proxy or
information statements filed pursuant to Section&nbsp;13(a), 13(c), 14 or 15(d) of the 1934 Act after
the date of this Registration Statement and prior to the filing of a post-effective amendment which
indicates that all securities offered hereby have been sold or which de-registers all securities
then remaining unsold shall be deemed to be incorporated by reference into this Registration
Statement and to be a part hereof from the date of filing of such documents.
</DIV>
<!-- link2 "Item&nbsp;4. Description of securities" -->
<DIV align="left"><A NAME="003"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;4. Description of securities</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The class of securities to be offered
is registered under Section&nbsp;12 of the 1934 Act.
</DIV>
<!-- link2 "Item&nbsp;5. Interests of named experts and counsel" -->
<DIV align="left"><A NAME="004"></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;Not applicable.
</DIV>
<!-- link2 "Item&nbsp;6. Indemnification of directors and officers" -->
<DIV align="left"><A NAME="005"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;6. Indemnification of directors and officers</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;102(b) of the Delaware General
Corporation Law authorizes 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 or alleged breach of the director&#146;s &#147;duty of care.&#148; While this
statute does not change directors&#146; duty of care, it enables corporations to limit available relief
to equitable remedies such as injunction or rescission. The statute has no effect on a director&#146;s
duty of loyalty or liability for acts or omissions not in good faith or involving intentional
misconduct or knowing violations of law, illegal payment of dividends or stock redemptions or
repurchases, or for any transaction from which the director derives an improper personal benefit.
As permitted by the statute, the Registrant has adopted provisions in its certificate of
incorporation that eliminate to the fullest extent permissible under Delaware law the personal
liability of its directors to the Registrant and its stockholders for monetary damages for breach
or alleged breach of their duty of care. The Registrant&#146;s certificate of incorporation eliminates
the personal liability of each of its directors for monetary damages resulting from any breach of
his fiduciary duty as a director, except for liability:
</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"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for any breach of the director&#146;s duty of loyalty to the
Registrant or its stockholders;</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"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for acts or omissions not in good faith or that involve
intentional misconduct or a knowing violation of law;</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"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>under Section&nbsp;174 of the Delaware General Corporation Law
regarding unlawful dividends, stock purchases and redemptions; or</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"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>for any transaction from which the director derived an
improper personal benefit.</TD>
</TR>

</TABLE>
</DIV>
<P align="center" style="font-size: 10pt"><!-- Folio -->II-1<!-- /Folio -->
</DIV>

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


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<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Section&nbsp;145 of the Delaware General
Corporation Law provides that a corporation may indemnify directors and officers as well as other
individuals against expenses, judgments, fines and amounts paid in settlement actually and
reasonably incurred by such person in connection with any threatened, pending or completed actions,
suits or proceedings in which such person is made a party by reason of such person being or having
been a director, officer, employee or agent to the Registrant. The Delaware General Corporation Law
provides that Section&nbsp;145 is not exclusive of other rights to which those seeking indemnification
may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors or
otherwise.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant&#146;s bylaws provide that:
</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"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Registrant is required to indemnify its directors
and officers, subject to limited exceptions in which such directors or officers are
adjudged to be liable to the Registrant;</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"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the Registrant is required to advance expenses, as
incurred, to its directors and officers in connection with a legal proceeding to
the fullest extent permitted by the Delaware General Corporation Law, subject to
limited exceptions; and</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"><B>&#149;</B></TD>
    <TD width="1%">&nbsp;</TD>
    <TD>the rights conferred in the bylaws are not exclusive.</TD>
</TR>

</TABLE>
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;In addition, the Registrant has
entered or will enter in the future into indemnity agreements with each of its current directors
and officers. These agreements provide for the indemnification of the Registrant&#146;s officers and
directors for all expenses and liabilities incurred in connection with any action or proceeding
brought against them by reason of the fact that they are or were agents of the Registrant. At
present, there is no pending litigation or proceeding involving a director, officer or employee of
the Registrant regarding which indemnification is sought, nor is the Registrant aware of any
threatened litigation that may result in claims for indemnification.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The Registrant also has obtained
directors&#146; and officers&#146; insurance to cover its directors, officers and some of the Registrant&#146;s
employees for liabilities, including coverage for public securities matters.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Reference is made to the underwriting
agreement filed as Exhibit&nbsp;1.1 to Registrant&#146;s Registration Statement on Form S-1 (Registration No.
333-141884), as amended, pursuant to which the underwriters have agreed to indemnify the
Registrant&#146;s officers and directors against certain liabilities under the Securities Act.
</DIV>
<!-- link2 "Item&nbsp;7. Exemption from registration claimed" -->
<DIV align="left"><A NAME="006"></A></DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 12pt"><B>Item&nbsp;7. Exemption from registration claimed</B>
</DIV>


<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Not applicable.
</DIV>
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<DIV align="left"><A NAME="007"></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%">
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<TR valign="bottom">
    <TD width="2%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="95%">&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>Exhibit</B></TD>
</TR>

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<!-- 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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit&nbsp;3.1.1 of the
Registrant&#146;s Form&nbsp;S-1 Registration Statement (Registration No.&nbsp;333-141884), declared effective by the
Securities and Exchange Commission on June&nbsp;27, 2007).</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">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Bylaws (incorporated by reference to Exhibit&nbsp;3.2 of the Registrant&#146;s
Form&nbsp;8-K filed with the Securities and Exchange Commission on January&nbsp;7, 2008).</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">4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Bylaws (incorporated by reference to Exhibit&nbsp;3.3 of the Registrant&#146;s
Form&nbsp;8-K filed with the Securities and Exchange Commission on August&nbsp;27, 2008).</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">4.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Specimen certificate for shares of common stock (incorporated by reference to the exhibit of the same
number to the Registrant&#146;s Form&nbsp;S-1 Registration Statement (Registration No.&nbsp;333-141884), declared
effective by the Securities and Exchange Commission on June&nbsp;27, 2007).</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">4.5
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Registration Statement No.&nbsp;001-33554 on Form&nbsp;8-A filed with the Securities and Exchange Commission on
June&nbsp;21, 2007 which is incorporated herein by reference pursuant to Item&nbsp;3(c).</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">4.6
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2007 Equity Incentive Plan (which is incorporated herein by reference to Exhibit&nbsp;10.3 to the Registration
Statement on Form&nbsp;S-1 (Registration No.&nbsp;333-141884), as amended).</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 and consent of DLA Piper
LLP (US).</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 DLA Piper LLP (US) is contained in 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. Reference is
made to page II-4 of this Registration Statement.</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>
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<DIV align="left">
<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="2%" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD width="1%">&nbsp;</TD>
    <TD align="left" valign="top">Filed herewith</TD>
</TR>
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</table>
<P align="center" style="font-size: 10pt"><!-- Folio -->II-2<!-- /Folio -->
</DIV>

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

<!-- link2 "Item&nbsp;9. Undertakings." -->
<DIV align="left"><A NAME="008"></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">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;A.
The undersigned Registrant hereby undertakes: (1)&nbsp;to file, during any period in which offers
or sales are being made, a post-effective amendment to this Registration Statement (i)&nbsp;to include
any prospectus required by Section&nbsp;10(a)(3) of the Securities Act of 1933 Act, as amended (the
&#147;1933 Act&#148;), (ii)&nbsp;to reflect in the prospectus any facts or events arising after the effective date
of this 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
this Registration Statement and (iii)&nbsp;to include any material information with respect to the plan
of distribution not previously disclosed in this Registration Statement or any material change to
such information in this Registration Statement; provided, however, that clauses (1)(i) and (1)(ii)
above shall not apply if the information required to be included in a post-effective amendment by
those clauses 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 1934 Act that are incorporated by
reference into this Registration Statement; (2)&nbsp;that for the purpose of determining any liability
under the 1933 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; and (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.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;B.
The undersigned Registrant hereby undertakes that, for purposes of determining any
liability under the 1933 Act, each filing of the Registrant&#146;s annual report pursuant to Section
13(a) or Section 15(d) of the 1934 Act that is incorporated by reference into this 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.
</DIV>

<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;C.
Insofar as indemnification for liabilities arising under the 1933 Act may be permitted to
directors, officers, or controlling persons of the Registrant pursuant to the indemnification
provisions summarized in Item&nbsp;6 or otherwise, the Registrant has been advised that, in the opinion
of the Commission, such indemnification is against public policy as expressed in the 1933 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 1933 Act
and will be governed by the final adjudication of such issue.
</DIV>

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

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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">
<!-- link1 "SIGNATURES" -->
<DIV align="left"><A NAME="009"></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, 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 Houston, State of Texas on this 9th day of March, 2010.
</DIV>

<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>PROS HOLDINGS, INC.</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/ Albert E. Winemiller
&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Albert E. Winemiller&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR><TR>
    <TD align="left">&nbsp;</TD>
    <TD>&nbsp;</TD>
    <TD colspan="2" align="left">Chief Executive Officer and President&nbsp;</TD>
    <TD>&nbsp;</TD>
</TR>
<TR>
    <TD colspan="5">&nbsp;</TD>
</TR>
</TABLE>

<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: 12pt"><B>KNOW ALL PERSONS BY THESE PRESENTS:</B>
</DIV>



<DIV align="left" style="font-size: 10pt; margin-top: 6pt">&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;That the undersigned officers and
directors of PROS Holdings, Inc., a Delaware corporation, do hereby constitute and appoint Albert
E. Winemiller and Charles H. Murphy, and each of them, the lawful attorneys-in-fact and agents with
full power of substitution, each with power to act alone, and authority to do any and all acts and
things and to execute any and all instruments which said attorneys and agents, and any one of them,
determine 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 that all said attorneys and agents, or any
one of them, shall do or cause to be done by virtue hereof. This Power of Attorney may be signed
in several counterparts.
</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, as amended, this Registration Statement has been signed below by the
following persons in the capacities indicated on March&nbsp;9, 2010.
</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="4%">&nbsp;</TD>
    <TD width="48%">&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>
</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>
</TR>
<TR valign="bottom">
    <TD valign="top" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ Albert E. Winemiller</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Chief Executive Officer, President and Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Albert E. Winemiller</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(Principal Executive Officer)</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" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ Charles H. Murphy</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Executive Vice President and Chief Financial Officer</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Charles H. Murphy</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">(Principal Accounting Officer)</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" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ Ronald Woestemeyer</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Executive Vice President, Strategic Business Planning</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Ronald Woestemeyer</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">and Director</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" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ Ellen Keszler</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>

<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Ellen Keszler</DIV></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>
</TR>
<TR valign="bottom">
    <TD valign="top" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ Greg B. Petersen
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Greg B. Petersen</DIV></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>
</TR>
<TR valign="bottom">
    <TD valign="top" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ William Russell
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">William Russell</DIV></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>
</TR>
<TR valign="bottom">
    <TD valign="top" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ Timothy V. Williams
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Timothy V. Williams</DIV></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>
</TR>
<TR valign="bottom">
    <TD valign="top" style="border-bottom: 1px solid black"><DIV style="margin-left:0px; text-indent:-0px">/s/ Mariette M. Woestemeyer
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Director</TD>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">Mariette M. Woestemeyer</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">&nbsp;</TD>
</TR>
<!-- End Table Body -->
</TABLE>
</DIV>


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

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<P><HR noshade><P>
<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">

<!-- link1 "EXHIBIT INDEX" -->
<DIV align="left"><A NAME="010"></A></DIV>

<DIV align="center" style="font-size: 10pt; margin-top: 18pt"><B>EXHIBIT INDEX</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="4%">&nbsp;</TD>
    <TD width="3%">&nbsp;</TD>
    <TD width="93%">&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>Exhibit</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>
</TR>
<TR valign="bottom">
    <TD valign="top"><DIV style="margin-left:0px; text-indent:-0px">4.1
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit&nbsp;3.1.1 of the
Registrant&#146;s Form&nbsp;S-1 Registration Statement (Registration No.&nbsp;333-141884), declared effective by the
Securities and Exchange Commission on June&nbsp;27, 2007).</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">4.2
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Bylaws (incorporated by reference to Exhibit&nbsp;3.2 of the Registrant&#146;s Form&nbsp;8-K filed
with the Securities and Exchange Commission on January&nbsp;7, 2008).</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">4.3
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Amended and Restated Bylaws (incorporated by reference to Exhibit&nbsp;3.3 of the Registrant&#146;s Form&nbsp;8-K filed
with the Securities and Exchange Commission on August&nbsp;27, 2008).</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">4.4
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Specimen certificate for shares of common stock (incorporated by reference to the exhibit of the same
number to the Registrant&#146;s Form&nbsp;S-1 Registration Statement (Registration No.&nbsp;333-141884), declared
effective by the Securities and Exchange Commission on June&nbsp;27, 2007).</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">4.5
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">Registration Statement No.&nbsp;001-33554 on Form&nbsp;8-A filed with the Securities and Exchange Commission
on June&nbsp;21, 2007, which is incorporated herein by reference pursuant to Item&nbsp;3(c).</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">4.6
</DIV></TD>
    <TD>&nbsp;</TD>
    <TD align="left" valign="top">2007 Equity Incentive Plan (which is incorporated herein by reference to Exhibit&nbsp;10.3 to the Registration
Statement on Form&nbsp;S-1 (Registration No.&nbsp;333-141884), as amended).</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 and consent of DLA Piper
LLP (US).</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 DLA Piper  LLP (US) is contained in 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. Reference is
made to page II-4 of this Registration Statement.</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>
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</DIV>
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<DIV style="font-size: 3pt; margin-top: 16pt; width: 18%; border-top: 1px solid #000000">&nbsp;</DIV>
</DIV>

<TABLE style="font-size: 10pt" cellspacing="0" border="0" cellpadding="0" width="100%">
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<TR valign="bottom">
    <TD width="2%" valign="top"><DIV style="margin-left:0px; text-indent:-0px">*
</DIV></TD>
    <TD width="1%">&nbsp;</TD>
    <TD align="left" valign="top">Filed herewith</TD>
</TR>
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<P align="center" style="font-size: 10pt"><!-- Folio -->II-5<!-- /Folio -->
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</BODY>
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sv8
Table of Contents
As
filed with the Securities and Exchange Commission on March 9, 2010
Registration
No. 333-
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933
PROS HOLDINGS, INC.
(Exact name of registrant as specified in its charter)
Delaware
76-0168604
(State or other jurisdiction
of incorporation or organization)
(I.R.S. Employer Identification No.)
3100 MAIN STREET, SUITE 900
HOUSTON, TEXAS 77002
(
Address of principal executive offices) (Zip Code)
PROS HOLDINGS, INC.
2007 EQUITY INCENTIVE PLAN
(Full title of the Plan)
ALBERT E. WINEMILLER
CHIEF EXECUTIVE OFFICER AND PRESIDENT
PROS HOLDINGS, INC.
3100 MAIN STREET, SUITE 900
HOUSTON, TEXAS 77002
(Name and address of agent for service)
(713) 335-5151
(Telephone number, including area code, of agent for service)
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a
non-accelerated filer, or a smaller reporting company. See the definitions of "large accelerated
filer," "accelerated filer" and "smaller reporting company" in Rule 12b-2 of the Exchange Act.
(check one):
Large accelerated filer
o
Accelerated filer
þ
Non-accelerated
filer
o
(do not check if a smaller reporting company)
Smaller reporting company
o
CALCULATION OF REGISTRATION FEE
Proposed Maximum
Proposed Maximum
Amount to be
Offering
Aggregate
Amount of
Title of Securities to be Registered
Registered (1)
Price Per Share (2)
Offering Price (2)
Registration Fee
2007 Equity Incentive Plan
900,000
$
8.63
$
7,767,000
$
553.79
Common Stock, $0.001 par value
(1)
Pursuant to Rule 416 under the Securities Act of 1933, as amended (the
"Securities Act"), this Registration Statement shall also cover any additional shares of
Common Stock which become issuable under the PROS Holdings, Inc. 2007 Equity Incentive Plan by
reason of any stock dividend, stock split, recapitalization or other similar transaction
effected without the Registrant's receipt of consideration which results in an increase in the
number of the outstanding shares of Registrant's Common Stock.
(2)
Calculated solely for purposes of this offering under Rule 457(c) and (h) of the
Securities Act on the basis of the average of the high and low selling price per share of
Registrant's Common Stock as reported by the New York Stock
Exchange on March 3, 2010.
TABLE OF CONTENTS
PART I
PART II
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
EX-5.1
EX-23.1
Table of Contents
PART I
Information Required in the Section 10(a) Prospectus
The documents containing the information specified in Part I, Items 1 and 2, have been or will
be delivered to participants in accordance with Form S-8 and Rule 428 under the Securities Act of
1933, as amended (the "Securities Act").
PART II
Information Required in the Registration Statement
Item 3. Incorporation of documents by reference
PROS Holdings, Inc. (the "Registrant")
hereby incorporates by reference into this Registration Statement the following documents
previously filed with the Commission:
(a)
The Registrant's latest Annual Report on Form
10-K containing audited financial statements for the fiscal year ended December 31,
2009, filed with the Commission on March 9, 2010.
(b)
All other reports filed pursuant to Section
13(a) or 15(d) of the Securities Exchange Act of 1934, as amended (the "1934 Act")
since the end of the fiscal year covered by the Registrant's Annual Report referred to
in (a) above; and
(c)
The Registrant's Registration Statement No.
001-33554 on Form 8-A filed with the Commission on June 21, 2007 pursuant to Section
12(b) of the 1934 Act, which describes the terms, rights and provisions applicable to
the Registrant's outstanding Common Stock.
All reports and definitive proxy or
information statements filed pursuant to Section 13(a), 13(c), 14 or 15(d) of the 1934 Act after
the date of this Registration Statement and prior to the filing of a post-effective amendment which
indicates that all securities offered hereby have been sold or which de-registers all securities
then remaining unsold shall be deemed to be incorporated by reference into this Registration
Statement and to be a part hereof from the date of filing of such documents.
Item 4. Description of securities
The class of securities to be offered
is registered under Section 12 of the 1934 Act.
Item 5. Interests of named experts and counsel
Not applicable.
Item 6. Indemnification of directors and officers
Section 102(b) of the Delaware General
Corporation Law authorizes 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 or alleged breach of the director's "duty of care." While this
statute does not change directors' duty of care, it enables corporations to limit available relief
to equitable remedies such as injunction or rescission. The statute has no effect on a director's
duty of loyalty or liability for acts or omissions not in good faith or involving intentional
misconduct or knowing violations of law, illegal payment of dividends or stock redemptions or
repurchases, or for any transaction from which the director derives an improper personal benefit.
As permitted by the statute, the Registrant has adopted provisions in its certificate of
incorporation that eliminate to the fullest extent permissible under Delaware law the personal
liability of its directors to the Registrant and its stockholders for monetary damages for breach
or alleged breach of their duty of care. The Registrant's certificate of incorporation eliminates
the personal liability of each of its directors for monetary damages resulting from any breach of
his fiduciary duty as a director, except for liability:
•
for any breach of the director's duty of loyalty to the
Registrant or its stockholders;
•
for acts or omissions not in good faith or that involve
intentional misconduct or a knowing violation of law;
•
under Section 174 of the Delaware General Corporation Law
regarding unlawful dividends, stock purchases and redemptions; or
•
for any transaction from which the director derived an
improper personal benefit.
II-1
Table of Contents
Section 145 of the Delaware General
Corporation Law provides that a corporation may indemnify directors and officers as well as other
individuals against expenses, judgments, fines and amounts paid in settlement actually and
reasonably incurred by such person in connection with any threatened, pending or completed actions,
suits or proceedings in which such person is made a party by reason of such person being or having
been a director, officer, employee or agent to the Registrant. The Delaware General Corporation Law
provides that Section 145 is not exclusive of other rights to which those seeking indemnification
may be entitled under any bylaw, agreement, vote of stockholders or disinterested directors or
otherwise.
The Registrant's bylaws provide that:
•
the Registrant is required to indemnify its directors
and officers, subject to limited exceptions in which such directors or officers are
adjudged to be liable to the Registrant;
•
the Registrant is required to advance expenses, as
incurred, to its directors and officers in connection with a legal proceeding to
the fullest extent permitted by the Delaware General Corporation Law, subject to
limited exceptions; and
•
the rights conferred in the bylaws are not exclusive.
In addition, the Registrant has
entered or will enter in the future into indemnity agreements with each of its current directors
and officers. These agreements provide for the indemnification of the Registrant's officers and
directors for all expenses and liabilities incurred in connection with any action or proceeding
brought against them by reason of the fact that they are or were agents of the Registrant. At
present, there is no pending litigation or proceeding involving a director, officer or employee of
the Registrant regarding which indemnification is sought, nor is the Registrant aware of any
threatened litigation that may result in claims for indemnification.
The Registrant also has obtained
directors' and officers' insurance to cover its directors, officers and some of the Registrant's
employees for liabilities, including coverage for public securities matters.
Reference is made to the underwriting
agreement filed as Exhibit 1.1 to Registrant's Registration Statement on Form S-1 (Registration No.
333-141884), as amended, pursuant to which the underwriters have agreed to indemnify the
Registrant's officers and directors against certain liabilities under the Securities Act.
Item 7. Exemption from registration claimed
Not applicable.
Item 8. Exhibits
Number
Exhibit
4.1
Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1.1 of the
Registrant's Form S-1 Registration Statement (Registration No. 333-141884), declared effective by the
Securities and Exchange Commission on June 27, 2007).
4.2
Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2 of the Registrant's
Form 8-K filed with the Securities and Exchange Commission on January 7, 2008).
4.3
Amended and Restated Bylaws (incorporated by reference to Exhibit 3.3 of the Registrant's
Form 8-K filed with the Securities and Exchange Commission on August 27, 2008).
4.4
Specimen certificate for shares of common stock (incorporated by reference to the exhibit of the same
number to the Registrant's Form S-1 Registration Statement (Registration No. 333-141884), declared
effective by the Securities and Exchange Commission on June 27, 2007).
4.5
Registration Statement No. 001-33554 on Form 8-A filed with the Securities and Exchange Commission on
June 21, 2007 which is incorporated herein by reference pursuant to Item 3(c).
4.6
2007 Equity Incentive Plan (which is incorporated herein by reference to Exhibit 10.3 to the Registration
Statement on Form S-1 (Registration No. 333-141884), as amended).
5.1*
Opinion and consent of DLA Piper
LLP (US).
23.1*
Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.
23.2*
Consent of DLA Piper LLP (US) is contained in Exhibit 5.1.
24.1*
Power of Attorney. Reference is
made to page II-4 of this Registration Statement.
*
Filed herewith
II-2
Table of Contents
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 of 1933 Act, as amended (the
"1933 Act"), (ii) to reflect in the prospectus any facts or events arising after the effective date
of this 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
this Registration Statement and (iii) to include any material information with respect to the plan
of distribution not previously disclosed in this Registration Statement or any material change to
such information in this Registration Statement; provided, however, that clauses (1)(i) and (1)(ii)
above shall not apply if the information required to be included in a post-effective amendment by
those clauses 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 1934 Act that are incorporated by
reference into this Registration Statement; (2) that for the purpose of determining any liability
under the 1933 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; and (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 1933 Act, each filing of the Registrant's annual report pursuant to Section
13(a) or Section 15(d) of the 1934 Act that is incorporated by reference into this 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 1933 Act may be permitted to
directors, officers, or controlling persons of the Registrant pursuant to the indemnification
provisions summarized in Item 6 or otherwise, the Registrant has been advised that, in the opinion
of the Commission, such indemnification is against public policy as expressed in the 1933 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 1933 Act
and will be governed by the final adjudication of such issue.
II-3
Table of Contents
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 Houston, State of Texas on this 9th day of March, 2010.
PROS HOLDINGS, INC.
By:
/s/ Albert E. Winemiller
Albert E. Winemiller
Chief Executive Officer and President
POWER OF ATTORNEY
KNOW ALL PERSONS BY THESE PRESENTS:
That the undersigned officers and
directors of PROS Holdings, Inc., a Delaware corporation, do hereby constitute and appoint Albert
E. Winemiller and Charles H. Murphy, and each of them, the lawful attorneys-in-fact and agents with
full power of substitution, each with power to act alone, and authority to do any and all acts and
things and to execute any and all instruments which said attorneys and agents, and any one of them,
determine 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 that all said attorneys and agents, or any
one of them, shall do or cause to be done by virtue hereof. This Power of Attorney may be signed
in several counterparts.
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 indicated on March 9, 2010.
Signature
Title
/s/ Albert E. Winemiller
Chief Executive Officer, President and Director
Albert E. Winemiller
(Principal Executive Officer)
/s/ Charles H. Murphy
Executive Vice President and Chief Financial Officer
Charles H. Murphy
(Principal Accounting Officer)
/s/ Ronald Woestemeyer
Executive Vice President, Strategic Business Planning
Ronald Woestemeyer
and Director
/s/ Ellen Keszler
Director
Ellen Keszler
/s/ Greg B. Petersen
Director
Greg B. Petersen
/s/ William Russell
Director
William Russell
/s/ Timothy V. Williams
Director
Timothy V. Williams
/s/ Mariette M. Woestemeyer
Director
Mariette M. Woestemeyer
II-4
Table of Contents
EXHIBIT INDEX
Number
Exhibit
4.1
Amended and Restated Certificate of Incorporation (incorporated by reference to Exhibit 3.1.1 of the
Registrant's Form S-1 Registration Statement (Registration No. 333-141884), declared effective by the
Securities and Exchange Commission on June 27, 2007).
4.2
Amended and Restated Bylaws (incorporated by reference to Exhibit 3.2 of the Registrant's Form 8-K filed
with the Securities and Exchange Commission on January 7, 2008).
4.3
Amended and Restated Bylaws (incorporated by reference to Exhibit 3.3 of the Registrant's Form 8-K filed
with the Securities and Exchange Commission on August 27, 2008).
4.4
Specimen certificate for shares of common stock (incorporated by reference to the exhibit of the same
number to the Registrant's Form S-1 Registration Statement (Registration No. 333-141884), declared
effective by the Securities and Exchange Commission on June 27, 2007).
4.5
Registration Statement No. 001-33554 on Form 8-A filed with the Securities and Exchange Commission
on June 21, 2007, which is incorporated herein by reference pursuant to Item 3(c).
4.6
2007 Equity Incentive Plan (which is incorporated herein by reference to Exhibit 10.3 to the Registration
Statement on Form S-1 (Registration No. 333-141884), as amended).
5.1*
Opinion and consent of DLA Piper
LLP (US).
23.1*
Consent of PricewaterhouseCoopers LLP, Independent Registered Public Accounting Firm.
23.2*
Consent of DLA Piper  LLP (US) is contained in Exhibit 5.1.
24.1*
Power of Attorney. Reference is
made to page II-4 of this Registration Statement.
*
Filed herewith
II-5