<SEC-DOCUMENT>0001013762-21-000179.txt : 20211004
<SEC-HEADER>0001013762-21-000179.hdr.sgml : 20211004
<ACCEPTANCE-DATETIME>20211004213023
ACCESSION NUMBER:		0001013762-21-000179
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210930
FILED AS OF DATE:		20211004
DATE AS OF CHANGE:		20211004

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			RILEY BRYANT R
		CENTRAL INDEX KEY:			0001207269

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39291
		FILM NUMBER:		211304985

	MAIL ADDRESS:	
		STREET 1:		C/O B. RILEY FINANCIAL, INC.
		STREET 2:		21255 BURBANK BLVD, SUITE 400
		CITY:			WOODLAND HILLS
		STATE:			CA
		ZIP:			91367

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			B. Riley Financial, Inc.
		CENTRAL INDEX KEY:			0001464790
		STANDARD INDUSTRIAL CLASSIFICATION:	SERVICES-BUSINESS SERVICES, NEC [7389]
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39291
		FILM NUMBER:		211304990

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		818-884-3737

	MAIL ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025

	FORMER NAME:	
		FORMER CONFORMED NAME:	Great American Group, Inc.
		DATE OF NAME CHANGE:	20090522

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRC Partners Opportunity Fund, LP
		CENTRAL INDEX KEY:			0001642765
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39291
		FILM NUMBER:		211304986

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD. SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		310-966-1445

	MAIL ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD. SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRF Investments, LLC
		CENTRAL INDEX KEY:			0001880803
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39291
		FILM NUMBER:		211304989

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD.
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		818-884-3737

	MAIL ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD.
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			BRC Partners Management GP, LLC
		CENTRAL INDEX KEY:			0001749420
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39291
		FILM NUMBER:		211304987

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		310-689-2220

	MAIL ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			B. RILEY CAPITAL MANAGEMENT, LLC
		CENTRAL INDEX KEY:			0001658704
		STATE OF INCORPORATION:			NY
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39291
		FILM NUMBER:		211304988

	BUSINESS ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD.
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025
		BUSINESS PHONE:		310-966-1445

	MAIL ADDRESS:	
		STREET 1:		11100 SANTA MONICA BLVD.
		STREET 2:		SUITE 800
		CITY:			LOS ANGELES
		STATE:			CA
		ZIP:			90025

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Eos Energy Enterprises, Inc.
		CENTRAL INDEX KEY:			0001805077
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		3920 PARK AVENUE
		CITY:			EDISON
		STATE:			NJ
		ZIP:			08820
		BUSINESS PHONE:		(732) 225-8400

	MAIL ADDRESS:	
		STREET 1:		3920 PARK AVENUE
		CITY:			EDISON
		STATE:			NJ
		ZIP:			08820

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	B. Riley Principal Merger Corp. II
		DATE OF NAME CHANGE:	20200227
</SEC-HEADER>
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<TYPE>4
<SEQUENCE>1
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    <schemaVersion>X0306</schemaVersion>

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    <periodOfReport>2021-09-30</periodOfReport>

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    <issuer>
        <issuerCik>0001805077</issuerCik>
        <issuerName>Eos Energy Enterprises, Inc.</issuerName>
        <issuerTradingSymbol>EOSE</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001464790</rptOwnerCik>
            <rptOwnerName>B. Riley Financial, Inc.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11100 SANTA MONICA BLVD SUITE 800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001880803</rptOwnerCik>
            <rptOwnerName>BRF Investments, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11100 SANTA MONICA BLVD SUITE 800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90025</rptOwnerZipCode>
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    <reportingOwner>
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            <rptOwnerCik>0001658704</rptOwnerCik>
            <rptOwnerName>B. RILEY CAPITAL MANAGEMENT, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11100 SANTA MONICA BLVD. SUITE 800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001749420</rptOwnerCik>
            <rptOwnerName>BRC Partners Management GP, LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11100 SANTA MONICA BLVD SUITE 800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
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            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001642765</rptOwnerCik>
            <rptOwnerName>BRC Partners Opportunity Fund, LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11100 SANTA MONICA BLVD. SUITE 800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
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            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001207269</rptOwnerCik>
            <rptOwnerName>RILEY BRYANT R</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>11100 SANTA MONICA BLVD., SUITE 800</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>LOS ANGELES</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>90025</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
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            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-09-30</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>44172</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.1102</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5860777</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By BRF Investments, LLC</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-10-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>S</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>87714</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>14.2291</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5773063</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By BRF Investments, LLC</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Class A Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>1769</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F3"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.5</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2021-05-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2025-11-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>325000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>325000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By BRF Investments, LLC</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
        <derivativeHolding>
            <securityTitle>
                <value>Warrants (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>11.5</value>
            </conversionOrExercisePrice>
            <exerciseDate>
                <value>2021-05-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2025-11-16</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>25000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>25000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By BRC Partners Opportunity Fund, LP</value>
                    <footnoteId id="F1"/>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeHolding>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This Form 4 is being filed jointly by B. Riley Financial, Inc. (&quot;BRF&quot;), BRF Investments, LLC (&quot;BRFI&quot;), BRC Partners Opportunity Fund, LP (&quot;BRPLP&quot;), BRC Partners Opportunity Fund GP, LLC (&quot;BRPGP&quot;), B. Riley Capital Management, LLC (&quot;BRCM&quot;), and Bryant R. Riley. BRF is the parent company of BRFI. As a result, BRF may be deemed to indirectly beneficially own the shares held by BRFI. BRPGP is the general partner of BRPLP. BRCM is the sole member of BRPGP. BRF is the parent company of BRCM. As a result, BRF, BRPGP, and BRCM, may be deemed to indirectly beneficially own the shares held by BRPLP.</footnote>
        <footnote id="F2">Bryant R. Riley is the Co-Chief Executive Officer and Chairman of the Board of Directors of BRF. As a result, Bryant R. Riley may be deemed to indirectly beneficially own the shares of Common Stock directly held by BRFI and BRPLP. Each of BRF, BRFI, BRPLP, BRPGP, BRCM, and Bryant R. Riley disclaims beneficial ownership of the outstanding shares of Common Stock reported herein, except to the extent of its/his respective pecuniary interest therein.</footnote>
        <footnote id="F3">Represents shares held directly by Bryant R. Riley.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>B. Riley Financial, Inc., by: /s/ Bryant R. Riley, Co-Chief Executive Officer</signatureName>
        <signatureDate>2021-10-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>BRF Investments, LLC., by: /s/ Phillip Ahn, Authorized Signatory</signatureName>
        <signatureDate>2021-10-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>B. Riley Capital Management, LLC, by: /s/ Bryant R. Riley, Chief Executive Officer</signatureName>
        <signatureDate>2021-10-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>BRC Partners Management GP, LLC, by B. Riley Capital Management, LLC, its sole member, by: /s/ Bryant R. Riley, Chief Executive Officer</signatureName>
        <signatureDate>2021-10-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>BRC Partners Opportunity Fund, L.P., by: /s/ Bryant R. Riley, Chief Investment Officer</signatureName>
        <signatureDate>2021-10-04</signatureDate>
    </ownerSignature>

    <ownerSignature>
        <signatureName>/s/ Bryant R. Riley</signatureName>
        <signatureDate>2021-10-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
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</SEC-DOCUMENT>
