<SEC-DOCUMENT>0000902664-21-003751-index.html : 20210806
<SEC-HEADER>0000902664-21-003751.hdr.sgml : 20210806
<ACCEPTANCE-DATETIME>20210806083131
ACCESSION NUMBER:		0000902664-21-003751
CONFORMED SUBMISSION TYPE:	SC 13G
PUBLIC DOCUMENT COUNT:		1
FILED AS OF DATE:		20210806
DATE AS OF CHANGE:		20210806

SUBJECT COMPANY:	

	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

	FILING VALUES:
		FORM TYPE:		SC 13G
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	005-92701
		FILM NUMBER:		211150921

	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

FILED BY:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			HIGHBRIDGE CAPITAL MANAGEMENT LLC
		CENTRAL INDEX KEY:			0000919185
		IRS NUMBER:				134131516
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		SC 13G

	BUSINESS ADDRESS:	
		STREET 1:		277 PARK AVE
		STREET 2:		23RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10172
		BUSINESS PHONE:		2122872500

	MAIL ADDRESS:	
		STREET 1:		277 PARK AVE
		STREET 2:		23RD FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10172

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	HIGHBRIDGE CAPITAL MANAGEMENT INC /NY
		DATE OF NAME CHANGE:	19980610

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	DUBIN & SWIECA ASSET MANAGEMENT INC
		DATE OF NAME CHANGE:	19950817
</SEC-HEADER>
<DOCUMENT>
<TYPE>SC 13G
<SEQUENCE>1
<FILENAME>p21-1863sc13g.htm
<DESCRIPTION>CLEANTECH ACQUISITION CORP.
<TEXT>
Document 1 - file: p21-1863sc13g.htm

</DOCUMENT>
</SEC-DOCUMENT>