<SEC-DOCUMENT>0001140361-15-023805.txt : 20150610
<SEC-HEADER>0001140361-15-023805.hdr.sgml : 20150610
<ACCEPTANCE-DATETIME>20150610171948
ACCESSION NUMBER:		0001140361-15-023805
CONFORMED SUBMISSION TYPE:	4/A
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20150511
FILED AS OF DATE:		20150610
DATE AS OF CHANGE:		20150610

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			ALAMO GROUP INC
		CENTRAL INDEX KEY:			0000897077
		STANDARD INDUSTRIAL CLASSIFICATION:	FARM MACHINERY & EQUIPMENT [3523]
		IRS NUMBER:				741621248
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1627 E WALNUT
		CITY:			SEGUIN
		STATE:			TX
		ZIP:			78155
		BUSINESS PHONE:		8303791480

	MAIL ADDRESS:	
		STREET 1:		P.O. BOX 549
		STREET 2:		1627 EAST WALNUT
		CITY:			SEGUIN
		STATE:			TX
		ZIP:			78155

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			ROBINSON RONALD A
		CENTRAL INDEX KEY:			0001120808

	FILING VALUES:
		FORM TYPE:		4/A
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-13854
		FILM NUMBER:		15924133

	MAIL ADDRESS:	
		STREET 1:		1627 EAST WALNUT
		CITY:			SEGUIN
		STATE:			TX
		ZIP:			78155
</SEC-HEADER>
<DOCUMENT>
<TYPE>4/A
<SEQUENCE>1
<FILENAME>doc1.xml
<DESCRIPTION>FORM 4/A
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4/A</documentType>

    <periodOfReport>2015-05-11</periodOfReport>

    <dateOfOriginalSubmission>2015-05-13</dateOfOriginalSubmission>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000897077</issuerCik>
        <issuerName>ALAMO GROUP INC</issuerName>
        <issuerTradingSymbol>ALG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001120808</rptOwnerCik>
            <rptOwnerName>ROBINSON RONALD A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1627 E WALNUT ST</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SEGUIN</rptOwnerCity>
            <rptOwnerState>TX</rptOwnerState>
            <rptOwnerZipCode>78155</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>President &amp; CEO</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2015-05-11</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>10000</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>196075</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">These shares of restricted stock were inadvertently reported in Table II of the original Form 4 filed by the reporting person on May 13, 2015, as restricted stock units.  This Form 4 amendment is being filed to correctly report, in Table I, the acquisition of these shares of restricted stock by the reporting person on May 11, 2015 pursuant to the Alamo Group Inc. 2009 Equity Incentive Plan.</footnote>
        <footnote id="F2">Subsequent to this transaction, the reporting person exercised a derivative security and received 500 shares of Common Stock, which was reported on a Form 4 filed May 19, 2015. Accordingly, the reporting person currently beneficially owns a total of 196,575 shares of Common Stock.</footnote>
    </footnotes>

    <remarks>Ex. 24 - Power of Attorney (incorporated by reference to the Power of Attorney filed as Exhibit 24 to the Form 4 filed by the reporting person on May 19, 2015)</remarks>

    <ownerSignature>
        <signatureName>/s/ Kelly A. Watson (Power of Attorney attached)</signatureName>
        <signatureDate>2015-06-10</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
