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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 JcNeTZQNletU0lCm36cS27PVa7lT7/8fM2TwB8w8gkjCGk4E9eM+cqABcyliHg4V
 /KDyoCdAEP04vWniG75zIQ==

<SEC-DOCUMENT>0000926044-08-000074.txt : 20080129
<SEC-HEADER>0000926044-08-000074.hdr.sgml : 20080129
<ACCEPTANCE-DATETIME>20080129111412
ACCESSION NUMBER:		0000926044-08-000074
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080107
FILED AS OF DATE:		20080129
DATE AS OF CHANGE:		20080129

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			FIRSTBANK CORP
		CENTRAL INDEX KEY:			0000778972
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		IRS NUMBER:				382633910
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		311 WOODWORTH AVE
		STREET 2:		PO BOX 1029
		CITY:			ALMA
		STATE:			MI
		ZIP:			48801
		BUSINESS PHONE:		5174633131

	MAIL ADDRESS:	
		STREET 1:		311 WOODWORTH AVE
		CITY:			ALMA
		STATE:			MI
		ZIP:			48801

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			WILLIAMS PAUL C
		CENTRAL INDEX KEY:			0001425329

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-14209
		FILM NUMBER:		08556472

	BUSINESS ADDRESS:	
		BUSINESS PHONE:		989-463-3131

	MAIL ADDRESS:	
		STREET 1:		311 WOODWORTH AVENUE
		CITY:			ALMA
		STATE:			MI
		ZIP:			48881
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>williams3_010708ex.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2008-01-07</periodOfReport>

    <noSecuritiesOwned>0</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000778972</issuerCik>
        <issuerName>FIRSTBANK CORP</issuerName>
        <issuerTradingSymbol>FBMI</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001425329</rptOwnerCik>
            <rptOwnerName>WILLIAMS PAUL C</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>311 WOODWORTH AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>ALMA</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>48881</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Controller</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Restricted Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2000</value>
                    <footnoteId id="F1"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Shares vest as follows:  666.67 on January 7, 2009; 666.67 shares on January 7, 2010; and 666.66 shares on January 7, 2011.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Harvey Koning as attorney-in-fact</signatureName>
        <signatureDate>2008-01-29</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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