<SEC-DOCUMENT>0001104659-21-058959.txt : 20210430
<SEC-HEADER>0001104659-21-058959.hdr.sgml : 20210430
<ACCEPTANCE-DATETIME>20210430160055
ACCESSION NUMBER:		0001104659-21-058959
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210428
FILED AS OF DATE:		20210430
DATE AS OF CHANGE:		20210430

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Star Peak Sponsor LLC
		CENTRAL INDEX KEY:			0001821395
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39455
		FILM NUMBER:		21877638

	BUSINESS ADDRESS:	
		STREET 1:		C/O MAGNETAR CAPITAL LLC
		STREET 2:		1603 ORRINGTON AVENUE, 13TH FLOOR
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201
		BUSINESS PHONE:		847-905-4419

	MAIL ADDRESS:	
		STREET 1:		C/O MAGNETAR CAPITAL LLC
		STREET 2:		1603 ORRINGTON AVENUE, 13TH FLOOR
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Star Peak Energy Transition Corp.
		CENTRAL INDEX KEY:			0001758766
		STANDARD INDUSTRIAL CLASSIFICATION:	MISCELLANEOUS ELECTRICAL MACHINERY, EQUIPMENT & SUPPLIES [3690]
		IRS NUMBER:				851972187
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		C/O MAGNETAR CAPITAL LLC
		STREET 2:		1603 ORRINGTON AVENUE, 13TH FLOOR
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201
		BUSINESS PHONE:		847-905-4400

	MAIL ADDRESS:	
		STREET 1:		C/O MAGNETAR CAPITAL LLC
		STREET 2:		1603 ORRINGTON AVENUE, 13TH FLOOR
		CITY:			EVANSTON
		STATE:			IL
		ZIP:			60201

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Star Peak Energy Acquisition Corp.
		DATE OF NAME CHANGE:	20181119

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Roaring Fork Acquisition Corp.
		DATE OF NAME CHANGE:	20181109
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm2114745-2_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2021-04-28</periodOfReport>

    <notSubjectToSection16>1</notSubjectToSection16>

    <issuer>
        <issuerCik>0001758766</issuerCik>
        <issuerName>Star Peak Energy Transition Corp.</issuerName>
        <issuerTradingSymbol>STPK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001821395</rptOwnerCik>
            <rptOwnerName>Star Peak Sponsor LLC</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1603 ORRINGTON AVENUE</rptOwnerStreet1>
            <rptOwnerStreet2>13TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>EVANSTON</rptOwnerCity>
            <rptOwnerState>IL</rptOwnerState>
            <rptOwnerZipCode>60201</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle></officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2021-04-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>9509626</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>9509626</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Class B Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2021-04-28</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>9509626</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <footnoteId id="F1"/>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Class A Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>9509626</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                    <footnoteId id="F2"/>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">As described in the registrant's registration statement on Form S-1 (File No. 333-240267) under the heading &quot;Description of Securities-Founder Shares,&quot; the shares of Class B common stock were automatically convertible into shares of Class A common stock at the time of the registrant's initial business combination on a one-for-one basis, subject to certain adjustments described therein and have no expiration date. In connection with the closing of the registrant's initial business combination, the outstanding shares of Class B common stock were converted into shares of Class A common stock.</footnote>
        <footnote id="F2">The reporting person is controlled by a board of managers consisting of Eric Scheyer, Alex Litowitz and Michael C. Morgan; voting and dispositive decisions with respect to the securities of the issuer held by the reporting person require the unanimous consent of the board of managers. Accordingly, each of Messrs. Scheyer, Litowitz and Morgan are deemed to have or share beneficial ownership of the securities held directly by the reporting person.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Eric Scheyer</signatureName>
        <signatureDate>2021-04-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
