<SEC-DOCUMENT>0001213900-21-038975.txt : 20210727
<SEC-HEADER>0001213900-21-038975.hdr.sgml : 20210727
<ACCEPTANCE-DATETIME>20210727214257
ACCESSION NUMBER:		0001213900-21-038975
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20210714
FILED AS OF DATE:		20210727
DATE AS OF CHANGE:		20210727

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Fitzgerald Richard F
		CENTRAL INDEX KEY:			0001459933

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-40611
		FILM NUMBER:		211119628

	MAIL ADDRESS:	
		STREET 1:		C/O TECHPRECISION CORPORATION
		STREET 2:		ONE BELLA DRIVE
		CITY:			WESTMINSTER
		STATE:			MA
		ZIP:			01473

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			cleantech Acquisition Corp.
		CENTRAL INDEX KEY:			0001849820
		STANDARD INDUSTRIAL CLASSIFICATION:	BLANK CHECKS [6770]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		1 EAST PUTNAM AVENUE, FLOOR 4
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
		BUSINESS PHONE:		6464659000

	MAIL ADDRESS:	
		STREET 1:		1 EAST PUTNAM AVENUE, FLOOR 4
		CITY:			GREENWICH
		STATE:			CT
		ZIP:			06830
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>ownership.xml
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0206</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2021-07-14</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0001849820</issuerCik>
        <issuerName>cleantech Acquisition Corp.</issuerName>
        <issuerTradingSymbol>CLAQU</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001459933</rptOwnerCik>
            <rptOwnerName>Fitzgerald Richard F</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>IMMUNOME, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>665 STOCKTON DRIVE, SUITE 300</rptOwnerStreet2>
            <rptOwnerCity>EXTON</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19341</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Financial Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>/s/ Richard Fitzgerald</signatureName>
        <signatureDate>2021-07-27</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
