-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001112799-08-000012.txt : 20081105
<SEC-HEADER>0001112799-08-000012.hdr.sgml : 20081105
<ACCEPTANCE-DATETIME>20081105131239
ACCESSION NUMBER:		0001112799-08-000012
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20081024
FILED AS OF DATE:		20081105
DATE AS OF CHANGE:		20081105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			BIOLARGO, INC.
		CENTRAL INDEX KEY:			0000880242
		STANDARD INDUSTRIAL CLASSIFICATION:	CHEMICALS & ALLIED PRODUCTS [2800]
		IRS NUMBER:				650159115
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2603 MAIN ST.
		STREET 2:		SUITE 1155
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614
		BUSINESS PHONE:		949-643-9540

	MAIL ADDRESS:	
		STREET 1:		2603 MAIN ST.
		STREET 2:		SUITE 1155
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUWAY MEDICAL INC
		DATE OF NAME CHANGE:	20030205

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	NUWAY ENERGY INC
		DATE OF NAME CHANGE:	20010815

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	LATIN AMERICAN CASINOS INC
		DATE OF NAME CHANGE:	19960520

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			New Millennium Capital Partners, LLC
		CENTRAL INDEX KEY:			0001396737
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19709
		FILM NUMBER:		081163101

	BUSINESS ADDRESS:	
		STREET 1:		2603 MAIN STREET
		STREET 2:		SUITE 1155
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614
		BUSINESS PHONE:		(949) 643-9540

	MAIL ADDRESS:	
		STREET 1:		2603 MAIN STREET
		STREET 2:		SUITE 1155
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92614

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			CALVERT DENNIS P
		CENTRAL INDEX KEY:			0001228572

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-19709
		FILM NUMBER:		081163102

	BUSINESS ADDRESS:	
		STREET 1:		23461 S POINTE DRIVE
		STREET 2:		SUITE 200
		CITY:			LAGUNA HILLS
		STATE:			CA
		ZIP:			92653
		BUSINESS PHONE:		9494549011
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0303</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-10-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000880242</issuerCik>
        <issuerName>BIOLARGO, INC.</issuerName>
        <issuerTradingSymbol>BLGO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001228572</rptOwnerCik>
            <rptOwnerName>CALVERT DENNIS P</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1></rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity></rptOwnerCity>
            <rptOwnerState></rptOwnerState>
            <rptOwnerZipCode></rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Executive Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001396737</rptOwnerCik>
            <rptOwnerName>New Millennium Capital Partners, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>2603 MAIN STREET</rptOwnerStreet1>
            <rptOwnerStreet2>SUITE 1155</rptOwnerStreet2>
            <rptOwnerCity>IRVINE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92614</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2008-10-24</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>G</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>190000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1321649</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By LLC</value>
                    <footnoteId id="F1"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>900790</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">These shares are owned directly by New Millennium Capital Partners, LLC and indirectly by Dennis P. Calvert, its Managing Member.  Dennis P. Calvert is a director and officer of the Issuer.</footnote>
        <footnote id="F2">These shares are owned directly by Dennis P. Calvert.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Dennis P. Calvert</signatureName>
        <signatureDate>2008-11-05</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ New Millennium Capital Partners, LLC</signatureName>
        <signatureDate>2008-11-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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