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<TITLE>Firstbank Corporation              Form S-8 for May 24, 2006</TITLE>
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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>As filed with the Securities and
Exchange Commission on May 24, 2006 &#151; Registration No. 333-_________________</FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SECURITIES AND
EXCHANGE COMMISSION<BR>Washington, D.C. 20549 </FONT></H1>


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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>FORM S-8 </FONT></H1>

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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>REGISTRATION STATEMENT<BR>UNDER<BR>THE SECURITIES ACT OF
1933  </FONT></P>



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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Firstbank Corporation </B><BR><I>(Exact Name of
Registrant as Specified in its Charter) </I></FONT></P>


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<TD ALIGN=CENTER WIDTH=50%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Michigan</B><BR><I>(State or Other Jurisdiction of <BR>Incorporation or Organization)</I></FONT></TD>
<TD ALIGN=CENTER WIDTH=50%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>38-2633910</B><BR><I>(I.R.S. Employer<BR>
Identification Number)</I></FONT></TD>
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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>311 Woodworth Avenue,
Alma, Michigan 48801</B> <BR><I>(address of
principal executive offices) </I></FONT></P>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>FIRSTBANK CORPORATION
2006 STOCK COMPENSATION PLAN</B><BR><I>(full title of plan) </I></FONT></P>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>Thomas R. Sullivan<BR>Firstbank
Corporation <BR>311 Woodworth Avenue<BR>Alma, Michigan 48801<BR>(989) 463-3131 </B><BR><I>(Name, address,
including zip code, and telephone number,<BR>including area code, of agent for service) </I></FONT></P>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B><I>With copy to:</I><BR>Harvey
Koning, Esquire<BR>Varnum, Riddering, Schmidt &amp; Howlett LLP <BR>Bridgewater Place <BR>P.O. Box
352<BR> Grand Rapids, Michigan 49501-0352<BR> (616) 336-6000  </B></FONT></P>


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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>CALCULATION OF
REGISTRATION FEE </FONT></H1>

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     <TH COLSPAN=3><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Title of Securities<BR>Being Registered</FONT></TH>
     <TH COLSPAN=3><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amount Being<BR>Registered</FONT></TH>
     <TH COLSPAN=3><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Proposed<BR>Maximum<BR>Offering Price<BR>Per Share(2)</FONT></TH>
     <TH COLSPAN=3><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Proposed<BR>Maximum<BR>Aggregate<BR>Offering Price(2)</FONT></TH>
     <TH COLSPAN=3><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Amount of<BR>Registration<BR>Fee</FONT></TH></TR>

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     <TD COLSPAN=14 ALIGN=RIGHT><HR COLOR=#000000 SIZE=3></TD><TD></TD>
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     <TD WIDTH="15%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Common Stock</FONT></TD>
     <TD WIDTH="2%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD WIDTH="3%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>

     <TD WIDTH="2%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
     <TD WIDTH="15%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>300,000 shares(1)</FONT></TD>
     <TD WIDTH="4%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>

     <TD WIDTH="1%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$</FONT></TD>
     <TD WIDTH="15%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2> 23.27</FONT></TD>
     <TD WIDTH="4%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>

     <TD WIDTH="1%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$</FONT></TD>
     <TD WIDTH="15%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2> 6,981,000</FONT></TD>
     <TD WIDTH="4%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>

     <TD WIDTH="1%" ALIGN="RIGHT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>$</FONT></TD>
     <TD WIDTH="15%" ALIGN="CENTER"><FONT FACE="Times New Roman, Times, Serif" SIZE=2> 747</FONT></TD>
     <TD WIDTH="3%" ALIGN="LEFT"><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD></TR>



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          <TD WIDTH=5% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(1)</FONT></TD>
          <TD WIDTH=95% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
          Represents 300,000 shares of Common Stock authorized for issuance under the
          Firstbank Corporation 2006 Stock Compensation Plan. This Registration Statement
          also covers such indeterminable additional number of shares as may be issuable
          under the Firstbank Corporation 2006 Stock Compensation Plan by reason of
          adjustments to the number of shares covered thereby. </FONT></TD>
          </TR>
          </TABLE>
          <BR>


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          <TD WIDTH=5% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(2)</FONT></TD>
          <TD WIDTH=95% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
          For the purpose of computing the registration fee only, the price shown is based
          upon the price of $23.27 per share, the average of the high and low sales prices
          for the Common Stock of Firstbank Corporation as reported in the NASDAQ National
          Market on May 22, 2006 in accordance with Rule 457(c) and (h)(1). </FONT></TD>
          </TR>
          </TABLE>
          <BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Pursuant to Rule 416(a) of the
General Rules and Regulations under the Securities Act of 1933, this Registration
Statement shall cover such additional securities as may be offered or issued to prevent
dilution resulting from stock splits, stock dividends or similar transactions. </FONT></P>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>2 </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PART I </FONT></H1>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>INFORMATION REQUIRED
IN THE SECTION 10(a) PROSPECTUS </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Information required by Part I to be
contained in the Section 10(a) Prospectus is omitted from this Registration Statement in
accordance with Rule 428 under the Securities Act of 1933 and the Note to Part I of Form
S-8. </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>PART II </FONT></H1>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>INFORMATION REQUIRED
IN THE REGISTRATION STATEMENT </FONT></H1>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 3.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Incorporation of Documents
by Reference </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The Corporation hereby incorporates
by reference in this Registration Statement the following documents filed by the
Corporation with the Securities and Exchange Commission: </FONT></P>

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          <TD WIDTH=5% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(a)</FONT></TD>
          <TD WIDTH=95% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
          The Corporation&#146;s latest Annual Report on Form 10-K filed pursuant to
          Section 13(a) of the Securities Exchange Act of 1934; </FONT></TD>
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          </TABLE>
          <BR>

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          <TD WIDTH=5% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(b)</FONT></TD>
          <TD WIDTH=95% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
          All other reports or documents filed by the Corporation pursuant to Section
          13(a) or 15(d) of the Securities Exchange Act of 1934, since the end of the
          fiscal year covered by the Annual Report on Form 10-K referenced to in (a)
          above; and </FONT></TD>
          </TR>
          </TABLE>
          <BR>

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          <TD WIDTH=5% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(c)</FONT></TD>
          <TD WIDTH=95% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
          The description of the Corporation&#146;s Common Stock is contained in the
          Corporation&#146;s Registration Statement filed pursuant to Section 12 of the
          Exchange Act and is incorporated in this Registration Statement by reference,
          including any subsequent amendments or reports filed for the purpose of updating
          such description. </FONT></TD>
          </TR>
          </TABLE>
          <BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>All other documents subsequently
filed by the Corporation pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange
Act, prior to the filing of a post-effective amendment which indicates that all securities
offered have been sold or which deregisters all securities then remaining unsold, shall be
deemed to be incorporated by reference in this Registration Statement and to be part of
this Registration Statement from the date of filing of such documents. Any statement
contained in a document incorporated or deemed to be incorporated by reference in this
Registration Statement shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained in this Registration
Statement or in any other subsequently filed document which also is incorporated or deemed
to be incorporated by reference in this Registration Statement modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed, except as
modified or superseded, to constitute a part of this Registration Statement. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 4.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Description of
Securities </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>The class of securities to be offered
is registered under Section 12 of the Exchange Act. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 5.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Interests of
Named Experts and Counsel </FONT></H1>

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<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Not applicable. </FONT></P>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>3 </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 6.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Indemnification
of Directors and Officers </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;The
Corporation&#146;s Restated Articles of Incorporation require indemnification of the
Corporation&#146;s directors, officers, employees and agents to the maximum extent
permitted by the Michigan Business Corporation Act. The following is a summary of the
pertinent provisions of the Michigan Business Corporation Act. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Sections
561-567 of the Michigan Business Corporation Act contain provisions governing the
indemnification of officers and directors by Michigan corporations. That statute provides
that a corporation shall have the power to indemnify any person who was or is a party or
is threatened to be made a party to any threatened, pending or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative (other than an action
by or in the right of the corporation), by reason of the fact that he is or was a
director, officer, employee or agent of the corporation or serving another corporation or
other enterprise at the request of the corporation, against expenses, including
attorneys&#146; fees, judgments, penalties, fines and amounts paid in settlement, actually
and reasonably incurred by him in connection with such action, suit or proceeding if he
acted in good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the corporation or its shareholders, and, with respect to any criminal
action or proceeding, had no reasonable cause to believe his conduct was unlawful. The
termination of any action, suit or proceeding by judgment, order, settlement, conviction
or upon a plea of nolo contendere or its equivalent, shall not, of itself, crease a
presumption that the person did not act in good faith and in a manner which he reasonably
believed to be in or not opposed to the best interests of the corporation or its
shareholders, or, with respect to any criminal action or proceeding, that he had
reasonable cause to believe that his conduct was unlawful. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Indemnification
of expenses, including attorneys&#146; fees, is allowed in derivative actions except that
no indemnification is allowed in respect of any claim, issue or matter as to which such
person shall have been found liable to the corporation unless a court decides
indemnification is proper. To the extent any such person succeeds on the merits or
otherwise, he shall be indemnified against expenses, including attorneys&#146; fees. A
determination that the person to be indemnified meets the applicable standard of conduct,
if not made by a court, shall be made by the board of directors by a majority vote of a
quorum consisting of directors who were not parties to such action; if such a quorum is
not obtainable, by a majority vote of a committee designated by the board of directors
consisting of two or more directors not parties to the action, suit or proceeding; by
independent legal counsel; by all independent directors who are not parties or threatened
to be parties in the action, suit, or proceeding; or by the shareholders. Expenses may be
paid in advance upon receipt of an undertaking to repay. A corporation may purchase
indemnity insurance. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 7.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exemption from
Registration Claimed </FONT></H1>

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<P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Not applicable. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 8.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Exhibits </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Reference is made to the Exhibit
Index which appears on Page 7. </FONT></P>

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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Item 9.&nbsp;&nbsp;&nbsp;&nbsp;&nbsp; Undertakings </FONT></H1>

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     <P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(a)&nbsp;&nbsp;&nbsp;&nbsp;
          The undersigned registrant hereby undertakes: </FONT></P>

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     <P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(1)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          To file, during any period in which offers or sales are being made, a
          post-effective amendment to this Registration Statement: </FONT></P>

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               <TD ALIGN=RIGHT WIDTH=5%></TD>
               <TD WIDTH=95%><P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(i)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               To include any prospectus required by Section 10(a)(3) of the Securities Act of
               1933; </FONT></P></TD>
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               <BR>

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               <TD WIDTH=95%><P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(ii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               To reflect in the prospectus any facts or events arising after the effective
               date of the Registration Statement (or the most recent post-effective amendment
               thereof) which, individually or in the aggregate, represents a fundamental
               change in the information set forth in the Registration Statement; and </FONT></P></TD>
               </TR>
               </TABLE>
               <BR>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>4 </FONT></P>

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               <TD WIDTH=95%><P ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(iii)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
               To include any material information with respect to the plan of distribution not
               previously disclosed in the Registration Statement or any material change to
               such information in the Registration Statement; </FONT></P></TD>
               </TR>
               </TABLE>
               <BR>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2><I>provided, however</I>, that
paragraphs (a)(1)(i) and (a)(1)(ii) do not apply if information required to be included in
a post-effective amendment by those paragraphs is contained in periodic reports filed by
the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of
1934 that are incorporated by reference in the Registration Statement. </FONT></P>

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     <P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(2)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;
          That, for the purpose of determining any liability under the Securities Act of
          1933, 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
          <I>bona fide</I> offering thereof. </FONT></P>

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     <P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;(3)&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&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. </FONT></P>

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     <P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(b)&nbsp;&nbsp;&nbsp;&nbsp;
          The undersigned registrant hereby undertakes that, for purposes of determining
          any liability under the Securities Act of 1933, each filing of the
          registrant&#146;s annual report pursuant to Section 13(a) or Section 15(d) of
          the Securities Exchange Act of 1934 (and, where applicable, each filing of an
          employee benefit plan&#146;s annual report pursuant to Section 15(d) of the
          Securities Exchange Act of 1934) that is incorporated by reference in the
          Registration Statement shall be deemed to be a new registration statement
          relating to the securities offered therein, and the offering of such securities
          at that time shall be deemed to be the initial <I>bona fide</I> offering
          thereof. </FONT></P>

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     <P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>(c)&nbsp;&nbsp;&nbsp;&nbsp;
          Insofar as indemnification for liabilities arising under the Securities Act of
          1933 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 Securities and Exchange Commission
          such indemnification is against public policy as expressed in the 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 Act and will be governed by the final adjudication of
          such issue. </FONT></P>



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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>5 </FONT></P>

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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>SIGNATURES </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, 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 Alma, State of Michigan, on the
22nd day of May, 2006. </FONT></P>


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<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=50%><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B>FIRSTBANK CORPORATION</B><BR><BR>
<BR>By /S/ Samuel G. Stone<BR>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>
&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Samuel G. Stone, Chief Financial Officer</FONT></TD>
</TR>
</TABLE>
<BR>






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<H1 ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>POWER OF ATTORNEY </FONT></H1>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;<B>KNOW
ALL MEN BY THESE PRESENTS,</B> that each person whose signature appears below constitutes
and appoints Thomas R. Sullivan and Samuel G. Stone, and each of them, his true and lawful
attorney-in-fact and agent, with full power of substitution and resubstitution, for him
and in his name, place and stead, in any and all capacities, to sign any and all
amendments (including post-effective amendments) to this Registration Statement and to
file the same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other regulatory authority, granting
unto said attorney-in-fact and agent, full power and authority to do and perform each and
every act and thing required and necessary to be done in and about the premises, as fully
to all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorney-in-fact and agent, or his substitute, may lawfully do or
cause to be done by virtue hereof. </FONT></P>

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<P><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Pursuant
to the requirements of the Securities Act of 1933, this Registration Statement has been
signed below on May 22, 2006 by the following persons in the capacities indicated. </FONT></P>



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<TD WIDTH=45%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>/s/ William E. Goggin<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>
William E. Goggin, Chairman<BR><BR><BR>
/s/ David W. Fultz<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;
<BR>David W. Fultz, Director<BR><BR><BR>/s/ Edward B. Grant<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>

Edward B. Grant, Ph.D., CPA, Director<BR><BR><BR>/s/ Samuel A. Smith<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>Samuel A. Smith, Director</FONT></TD>
<TD WIDTH=10%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=45%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>/s/ Duane A. Carr<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>
Duane A. Carr, Director<BR><BR>
<BR>/s/ Jeff A. Gardner<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>Jeff A. Gardner, Director<BR><BR><BR>
/s/ David D. Roslund<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>David D. Roslund, CPA, Director
<BR><BR><BR>/s/ Thomas R. Sullivan<BR>&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;&#151;<BR>
Thomas R. Sullivan, President, Chief Executive<BR>Officer and Director</FONT></TD>
</TR>
</TABLE>
<BR>


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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>6 </FONT></P>

<HR SIZE=3 NOSHADE><p Style='page-break-before:always'>






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<H1 ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>EXHIBIT INDEX </FONT></H1>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2></FONT></TD>
<TD WIDTH=10% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2><B><U>Exhibit No.</U></B></FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>
<B><U>Description</U></B> </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>4.1  </FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;Articles
of Incorporation of Firstbank Corporation (incorporated by reference to Exhibit 3(i) to
the Firstbank Corporation Quarterly Report on Form 10-Q for the quarter ended March 31,
1997)  </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>4.2  </FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;Bylaws
of Firstbank Corporation (incorporated by reference to an exhibit to the Firstbank
Corporation Registration Statement on Form S-2 (Registration No. 33-68432))  </FONT></TD>
</TR>
</TABLE>
<BR>

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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>5.1  </FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Opinion
of Varnum, Riddering, Schmidt &amp; Howlett LLP regarding legality of securities being
                         registered </FONT></TD>
</TR>
</TABLE>
<BR>



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<TR VALIGN=TOP>
<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>23.1</FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent of
Independent Registered Public Accounting Firm </FONT></TD>
</TR>
</TABLE>
<BR>




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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>23.2  </FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Consent
of Varnum, Riddering, Schmidt &amp; Howlett LLP (included in opinion filed as Exhibit
                         5.1)</FONT></TD>
</TR>
</TABLE>
<BR>


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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>24.1</FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2>Power of Attorney (included on the signature
page of this registration statement)</FONT></TD>
</TR>
</TABLE>
<BR>


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<TD WIDTH=5%><FONT FACE="Times New Roman, Times, Serif" SIZE=2>&nbsp;</FONT></TD>
<TD WIDTH=10% ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2>99.1</FONT></TD>
<TD WIDTH=85% ALIGN=LEFT><FONT FACE="Times New Roman, Times, Serif" SIZE=2> Firstbank Corporation 2006 Stock Compensation
Plan (incorporated by reference to Appendix A to the Firstbank Corporation Proxy Statement on Form DEF 14A for the 2006 Annual Meeting
as filed with the Securities and Exchange Commission on March 16, 2006) </FONT></TD>
</TR>
</TABLE>
<BR>






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<P ALIGN=CENTER><FONT FACE="Times New Roman, Times, Serif" SIZE=2> 7</FONT></P>





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{"company-data": {"conformed-name": "FIRSTBANK CORP", "cik": "0000778972", "assigned-sic": "6022", "irs-number": "382633910", "state-of-incorporation": "MI", "fiscal-year-end": "1231"}, "filing-values": {"form-type": "S-8", "act": "33", "file-number": "333-134433", "film-number": "06864725"}, "business-address": {"street1": "311 WOODWORTH AVE", "street2": "PO BOX 1029", "city": "ALMA", "state": "MI", "zip": "48801", "phone": "5174633131"}, "mail-address": {"street1": "311 WOODWORTH AVE", "city": "ALMA", "state": "MI", "zip": "48801"}}
Firstbank Corporation              Form S-8 for May 24, 2006
As filed with the Securities and
Exchange Commission on May 24, 2006 — Registration No. 333-_________________
SECURITIES AND
EXCHANGE COMMISSION
Washington, D.C. 20549
FORM S-8
REGISTRATION STATEMENT
UNDER
THE SECURITIES ACT OF
1933
Firstbank Corporation
(Exact Name of
Registrant as Specified in its Charter)
Michigan
(State or Other Jurisdiction of
Incorporation or Organization)
38-2633910
(I.R.S. Employer
Identification Number)
311 Woodworth Avenue,
Alma, Michigan 48801
(address of
principal executive offices)
FIRSTBANK CORPORATION
2006 STOCK COMPENSATION PLAN
(full title of plan)
Thomas R. Sullivan
Firstbank
Corporation
311 Woodworth Avenue
Alma, Michigan 48801
(989) 463-3131
(Name, address,
including zip code, and telephone number,
including area code, of agent for service)
With copy to:
Harvey
Koning, Esquire
Varnum, Riddering, Schmidt & Howlett LLP
Bridgewater Place
P.O. Box
352
Grand Rapids, Michigan 49501-0352
(616) 336-6000
CALCULATION OF
REGISTRATION FEE
Title of Securities
Being Registered
Amount Being
Registered
Proposed
Maximum
Offering Price
Per Share(2)
Proposed
Maximum
Aggregate
Offering Price(2)
Amount of
Registration
Fee
Common Stock
300,000 shares(1)
$
23.27
$
6,981,000
$
747
(1)
Represents 300,000 shares of Common Stock authorized for issuance under the
          Firstbank Corporation 2006 Stock Compensation Plan. This Registration Statement
          also covers such indeterminable additional number of shares as may be issuable
          under the Firstbank Corporation 2006 Stock Compensation Plan by reason of
          adjustments to the number of shares covered thereby.
(2)
For the purpose of computing the registration fee only, the price shown is based
          upon the price of $23.27 per share, the average of the high and low sales prices
          for the Common Stock of Firstbank Corporation as reported in the NASDAQ National
          Market on May 22, 2006 in accordance with Rule 457(c) and (h)(1).
Pursuant to Rule 416(a) of the
General Rules and Regulations under the Securities Act of 1933, this Registration
Statement shall cover such additional securities as may be offered or issued to prevent
dilution resulting from stock splits, stock dividends or similar transactions.
2
PART I
INFORMATION REQUIRED
IN THE SECTION 10(a) PROSPECTUS
Information required by Part I to be
contained in the Section 10(a) Prospectus is omitted from this Registration Statement in
accordance with Rule 428 under the Securities Act of 1933 and the Note to Part I of Form
S-8.
PART II
INFORMATION REQUIRED
IN THE REGISTRATION STATEMENT
Item 3.     Incorporation of Documents
by Reference
The Corporation hereby incorporates
by reference in this Registration Statement the following documents filed by the
Corporation with the Securities and Exchange Commission:
(a)
The Corporation's latest Annual Report on Form 10-K filed pursuant to
          Section 13(a) of the Securities Exchange Act of 1934;
(b)
All other reports or documents filed by the Corporation pursuant to Section
          13(a) or 15(d) of the Securities Exchange Act of 1934, since the end of the
          fiscal year covered by the Annual Report on Form 10-K referenced to in (a)
          above; and
(c)
The description of the Corporation's Common Stock is contained in the
          Corporation's Registration Statement filed pursuant to Section 12 of the
          Exchange Act and is incorporated in this Registration Statement by reference,
          including any subsequent amendments or reports filed for the purpose of updating
          such description.
All other documents subsequently
filed by the Corporation pursuant to Sections 13(a), 13(c), 14 and 15(d) of the Exchange
Act, prior to the filing of a post-effective amendment which indicates that all securities
offered have been sold or which deregisters all securities then remaining unsold, shall be
deemed to be incorporated by reference in this Registration Statement and to be part of
this Registration Statement from the date of filing of such documents. Any statement
contained in a document incorporated or deemed to be incorporated by reference in this
Registration Statement shall be deemed to be modified or superseded for purposes of this
Registration Statement to the extent that a statement contained in this Registration
Statement or in any other subsequently filed document which also is incorporated or deemed
to be incorporated by reference in this Registration Statement modifies or supersedes such
statement. Any such statement so modified or superseded shall not be deemed, except as
modified or superseded, to constitute a part of this Registration Statement.
Item 4.      Description of
Securities
The class of securities to be offered
is registered under Section 12 of the Exchange Act.
Item 5.      Interests of
Named Experts and Counsel
Not applicable.
3
Item 6.      Indemnification
of Directors and Officers
The
Corporation's Restated Articles of Incorporation require indemnification of the
Corporation's directors, officers, employees and agents to the maximum extent
permitted by the Michigan Business Corporation Act. The following is a summary of the
pertinent provisions of the Michigan Business Corporation Act.
Sections
561-567 of the Michigan Business Corporation Act contain provisions governing the
indemnification of officers and directors by Michigan corporations. That statute provides
that a corporation shall have the power to indemnify any person who was or is a party or
is threatened to be made a party to any threatened, pending or completed action, suit or
proceeding, whether civil, criminal, administrative or investigative (other than an action
by or in the right of the corporation), by reason of the fact that he is or was a
director, officer, employee or agent of the corporation or serving another corporation or
other enterprise at the request of the corporation, against expenses, including
attorneys' fees, judgments, penalties, fines and amounts paid in settlement, actually
and reasonably incurred by him in connection with such action, suit or proceeding if he
acted in good faith and in a manner he reasonably believed to be in or not opposed to the
best interests of the corporation or its shareholders, and, with respect to any criminal
action or proceeding, had no reasonable cause to believe his conduct was unlawful. The
termination of any action, suit or proceeding by judgment, order, settlement, conviction
or upon a plea of nolo contendere or its equivalent, shall not, of itself, crease a
presumption that the person did not act in good faith and in a manner which he reasonably
believed to be in or not opposed to the best interests of the corporation or its
shareholders, or, with respect to any criminal action or proceeding, that he had
reasonable cause to believe that his conduct was unlawful.
Indemnification
of expenses, including attorneys' fees, is allowed in derivative actions except that
no indemnification is allowed in respect of any claim, issue or matter as to which such
person shall have been found liable to the corporation unless a court decides
indemnification is proper. To the extent any such person succeeds on the merits or
otherwise, he shall be indemnified against expenses, including attorneys' fees. A
determination that the person to be indemnified meets the applicable standard of conduct,
if not made by a court, shall be made by the board of directors by a majority vote of a
quorum consisting of directors who were not parties to such action; if such a quorum is
not obtainable, by a majority vote of a committee designated by the board of directors
consisting of two or more directors not parties to the action, suit or proceeding; by
independent legal counsel; by all independent directors who are not parties or threatened
to be parties in the action, suit, or proceeding; or by the shareholders. Expenses may be
paid in advance upon receipt of an undertaking to repay. A corporation may purchase
indemnity insurance.
Item 7.      Exemption from
Registration Claimed
Not applicable.
Item 8.      Exhibits
Reference is made to the Exhibit
Index which appears on Page 7.
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;
(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, represents a fundamental
               change in the information set forth in the Registration Statement; and
4
(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 information required to be included in
a post-effective amendment by those paragraphs is contained in periodic reports filed by
the registrant pursuant to Section 13 or Section 15(d) of the Securities Exchange Act of
1934 that are incorporated by reference in the Registration Statement.
(2)       
          That, for the purpose of determining any liability under the Securities Act of
          1933, 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 of 1933, each filing of the
          registrant's annual report pursuant to Section 13(a) or Section 15(d) of
          the Securities Exchange Act of 1934 (and, where applicable, each filing of an
          employee benefit plan's annual report pursuant to Section 15(d) of the
          Securities Exchange Act of 1934) that is incorporated by reference in the
          Registration Statement shall be deemed to be a new registration statement
          relating to the securities offered therein, and the offering of such securities
          at that time shall be deemed to be the initial
bona fide
offering
          thereof.
(c)    
          Insofar as indemnification for liabilities arising under the Securities Act of
          1933 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 Securities and Exchange Commission
          such indemnification is against public policy as expressed in the 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 Act and will be governed by the final adjudication of
          such issue.
5
SIGNATURES
Pursuant
to the requirements of the Securities Act of 1933, 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 Alma, State of Michigan, on the
22nd day of May, 2006.
FIRSTBANK CORPORATION
By /S/ Samuel G. Stone
——————————————
Samuel G. Stone, Chief Financial Officer
POWER OF ATTORNEY
KNOW
ALL MEN BY THESE PRESENTS,
that each person whose signature appears below constitutes
and appoints Thomas R. Sullivan and Samuel G. Stone, and each of them, his true and lawful
attorney-in-fact and agent, with full power of substitution and resubstitution, for him
and in his name, place and stead, in any and all capacities, to sign any and all
amendments (including post-effective amendments) to this Registration Statement and to
file the same, with all exhibits thereto, and other documents in connection therewith,
with the Securities and Exchange Commission and any other regulatory authority, granting
unto said attorney-in-fact and agent, full power and authority to do and perform each and
every act and thing required and necessary to be done in and about the premises, as fully
to all intents and purposes as he might or could do in person, hereby ratifying and
confirming all that said attorney-in-fact and agent, or his substitute, may lawfully 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 on May 22, 2006 by the following persons in the capacities indicated.
/s/ William E. Goggin
——————————————
William E. Goggin, Chairman
/s/ David W. Fultz
——————————————
David W. Fultz, Director
/s/ Edward B. Grant
——————————————
Edward B. Grant, Ph.D., CPA, Director
/s/ Samuel A. Smith
——————————————
Samuel A. Smith, Director
/s/ Duane A. Carr
——————————————
Duane A. Carr, Director
/s/ Jeff A. Gardner
——————————————
Jeff A. Gardner, Director
/s/ David D. Roslund
——————————————
David D. Roslund, CPA, Director
/s/ Thomas R. Sullivan
——————————————
Thomas R. Sullivan, President, Chief Executive
Officer and Director
6
EXHIBIT INDEX
Exhibit No.
Description
4.1
Articles
of Incorporation of Firstbank Corporation (incorporated by reference to Exhibit 3(i) to
the Firstbank Corporation Quarterly Report on Form 10-Q for the quarter ended March 31,
1997)
4.2
Bylaws
of Firstbank Corporation (incorporated by reference to an exhibit to the Firstbank
Corporation Registration Statement on Form S-2 (Registration No. 33-68432))
5.1
Opinion
of Varnum, Riddering, Schmidt & Howlett LLP regarding legality of securities being
                         registered
23.1
Consent of
Independent Registered Public Accounting Firm
23.2
Consent
of Varnum, Riddering, Schmidt & Howlett LLP (included in opinion filed as Exhibit
                         5.1)
24.1
Power of Attorney (included on the signature
page of this registration statement)
99.1
Firstbank Corporation 2006 Stock Compensation
Plan (incorporated by reference to Appendix A to the Firstbank Corporation Proxy Statement on Form DEF 14A for the 2006 Annual Meeting
as filed with the Securities and Exchange Commission on March 16, 2006)
7