<SEC-DOCUMENT>0001781002-25-000002.txt : 20250328
<SEC-HEADER>0001781002-25-000002.hdr.sgml : 20250328
<ACCEPTANCE-DATETIME>20250328171338
ACCESSION NUMBER:		0001781002-25-000002
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20250326
FILED AS OF DATE:		20250328
DATE AS OF CHANGE:		20250328

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Bleichroeder LP
		CENTRAL INDEX KEY:			0001781002
		ORGANIZATION NAME:           	
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36210
		FILM NUMBER:		25787691

	BUSINESS ADDRESS:	
		STREET 1:		1345 AVENUE OF THE AMERICAS
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10105
		BUSINESS PHONE:		917-769-2999

	MAIL ADDRESS:	
		STREET 1:		1345 AVENUE OF THE AMERICAS
		STREET 2:		47TH FLOOR
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10105

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			LIQTECH INTERNATIONAL INC
		CENTRAL INDEX KEY:			0001307579
		STANDARD INDUSTRIAL CLASSIFICATION:	MISC INDUSTRIAL & COMMERCIAL MACHINERY & EQUIPMENT [3590]
		ORGANIZATION NAME:           	06 Technology
		EIN:				201431677
		STATE OF INCORPORATION:			NV
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		INDUSTRIPARKEN 22C
		CITY:			BALLERUP
		STATE:			G7
		ZIP:			DK-2750
		BUSINESS PHONE:		01145 2390 4545

	MAIL ADDRESS:	
		STREET 1:		INDUSTRIPARKEN 22C
		CITY:			BALLERUP
		STATE:			G7
		ZIP:			DK-2750

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Blue Moose Media Inc
		DATE OF NAME CHANGE:	20041101
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-03-26</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001307579</issuerCik>
        <issuerName>LIQTECH INTERNATIONAL INC</issuerName>
        <issuerTradingSymbol>LIQT</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001781002</rptOwnerCik>
            <rptOwnerName>Bleichroeder LP</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>1345 AVENUE OF THE AMERICAS</rptOwnerStreet1>
            <rptOwnerStreet2>47TH FLOOR</rptOwnerStreet2>
            <rptOwnerCity>NEW YORK</rptOwnerCity>
            <rptOwnerState>NY</rptOwnerState>
            <rptOwnerZipCode>10105</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>1</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Warrants to Purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>5.2</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-03-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>531250</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>D</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2022-06-22</value>
            </exerciseDate>
            <expirationDate>
                <value>2027-06-22</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>531250</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>0</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Warrants to Purchase Common Stock</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>2</value>
                <footnoteId id="F1"/>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-03-26</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>J</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
                <footnoteId id="F1"/>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>531250</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2025-03-26</value>
            </exerciseDate>
            <expirationDate>
                <value>2029-12-31</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>531250</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>531250</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F2"/>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">On March 26, 2025, LiqTech International, Inc. and Bleichroeder LP, investment adviser to 21 April Fund, Ltd. and 21 April Fund, LP, agreed to amend (x) those certain 531,250 warrants to acquire Common Stock at an exercise price of $5.20 per share and having an expiration date of June 22, 2027 to (i) amend the exercise price to $2.00 per share and (ii) extend the expiration date to December 31, 2029.</footnote>
        <footnote id="F2">This form is filed by Bleichroeder LP. The securities reported herein are directly held by 21 April Fund, Ltd. and 21 April Fund, LP. Bleichroeder LP serves as registered investment adviser to 21 April Fund, Ltd., 21 April Fund, LP and other managed accounts. Bleichroeder LP disclaims beneficial ownership of these securities except to the extent of their pecuniary interest therein, and this report shall not be deemed an admission that Bleichroeder LP is the beneficial owner of the securities for purposes of Section 16 or for any other purposes.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>Andrew Gundlach, Chairman and CEO of Bleichroeder LP</signatureName>
        <signatureDate>2025-03-28</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
