<SEC-DOCUMENT>0001969223-25-000538.txt : 20250729
<SEC-HEADER>0001969223-25-000538.hdr.sgml : 20250729
<ACCEPTANCE-DATETIME>20250729161348
ACCESSION NUMBER:		0001969223-25-000538
CONFORMED SUBMISSION TYPE:	144
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20250729
DATE AS OF CHANGE:		20250729

SUBJECT COMPANY:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Eos Energy Enterprises, Inc.
		CENTRAL INDEX KEY:			0001805077
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		ORGANIZATION NAME:           	04 Manufacturing
		EIN:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		144
		SEC ACT:		1933 Act
		SEC FILE NUMBER:	001-39291
		FILM NUMBER:		251162021

	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

REPORTING-OWNER:	

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Puri Sumeet
		CENTRAL INDEX KEY:			0001991521
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		144

	MAIL ADDRESS:	
		STREET 1:		6525 SHADY OAK LANE
		CITY:			MASON
		STATE:			OH
		ZIP:			45040
</SEC-HEADER>
<DOCUMENT>
<TYPE>144
<SEQUENCE>1
<FILENAME>primary_doc.xml
<TEXT>
<XML>
<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/ownership" xmlns:com="http://www.sec.gov/edgar/common">
  <headerData>
    <submissionType>144</submissionType>
    <filerInfo>
      <filer>
        <filerCredentials>
          <cik>0001991521</cik>
          <ccc>XXXXXXXX</ccc>
        </filerCredentials>
      </filer>
      <liveTestFlag>LIVE</liveTestFlag>



    </filerInfo>
  </headerData>
  <formData>
    <issuerInfo>
      <issuerCik>0001805077</issuerCik>
      <issuerName>Eos Energy Enterprises, Inc.</issuerName>
      <secFileNumber>001-39291</secFileNumber>
      <issuerAddress>
        <com:street1>3920 PARK AVENUE</com:street1>
        <com:city>EDISON</com:city>
        <com:stateOrCountry>NJ</com:stateOrCountry>
        <com:zipCode>08820</com:zipCode>
      </issuerAddress>
      <issuerContactPhone>(732) 225-8400</issuerContactPhone>
      <nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>Puri Sumeet</nameOfPersonForWhoseAccountTheSecuritiesAreToBeSold>
      <relationshipsToIssuer>
        <relationshipToIssuer>Officer</relationshipToIssuer>
      </relationshipsToIssuer>
    </issuerInfo>
    <securitiesInformation>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <brokerOrMarketmakerDetails>
        <name>UBS Financial Services Inc.</name>
        <address>
          <com:street1>11 Madison Avenue</com:street1>
          <com:street2>4th Floor</com:street2>
          <com:city>New York</com:city>
          <com:stateOrCountry>NY</com:stateOrCountry>
          <com:zipCode>10010</com:zipCode>
        </address>
      </brokerOrMarketmakerDetails>
      <noOfUnitsSold>17500</noOfUnitsSold>
      <aggregateMarketValue>103880.00</aggregateMarketValue>
      <noOfUnitsOutstanding>227589833</noOfUnitsOutstanding>
      <approxSaleDate>07/29/2025</approxSaleDate>
      <securitiesExchangeName>Nasdaq</securitiesExchangeName>
    </securitiesInformation>
    <securitiesToBeSold>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <acquiredDate>07/25/2025</acquiredDate>
      <natureOfAcquisitionTransaction>RSU Vesting</natureOfAcquisitionTransaction>
      <nameOfPersonfromWhomAcquired>Issuer</nameOfPersonfromWhomAcquired>
      <isGiftTransaction>N</isGiftTransaction>
      <amountOfSecuritiesAcquired>17500</amountOfSecuritiesAcquired>
      <paymentDate>07/25/2025</paymentDate>
      <natureOfPayment>NA</natureOfPayment>
    </securitiesToBeSold>
    <nothingToReportFlagOnSecuritiesSoldInPast3Months>N</nothingToReportFlagOnSecuritiesSoldInPast3Months>
    <securitiesSoldInPast3Months>
      <sellerDetails>
        <name>Sumeet Puri</name>
        <address>
          <com:street1>3920 Park Avenue</com:street1>
          <com:city>Edison</com:city>
          <com:stateOrCountry>NJ</com:stateOrCountry>
          <com:zipCode>08820</com:zipCode>
        </address>
      </sellerDetails>
      <securitiesClassTitle>Common</securitiesClassTitle>
      <saleDate>05/16/2025</saleDate>
      <amountOfSecuritiesSold>36173</amountOfSecuritiesSold>
      <grossProceeds>248146.78</grossProceeds>
    </securitiesSoldInPast3Months>
    <remarks>The shares reported on this Form 144 will be sold pursuant to a Rule 10b5-1 trading plan adopted by the reporting person to cover estimated tax withholding obligations from the vesting of restricted stock units.</remarks>
    <noticeSignature>
      <noticeDate>07/29/2025</noticeDate>
      <planAdoptionDates>
        <planAdoptionDate>03/14/2025</planAdoptionDate>
      </planAdoptionDates>
      <signature>/s/ UBS Financial Services Inc, as attorney-in-fact for Sumeet Puri</signature>
    </noticeSignature>
  </formData>
</edgarSubmission>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
