<SEC-DOCUMENT>0000899243-20-001092.txt : 20200113
<SEC-HEADER>0000899243-20-001092.hdr.sgml : 20200113
<ACCEPTANCE-DATETIME>20200113171724
ACCESSION NUMBER:		0000899243-20-001092
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20200109
FILED AS OF DATE:		20200113
DATE AS OF CHANGE:		20200113

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Batycky Richard P.
		CENTRAL INDEX KEY:			0001646596

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36199
		FILM NUMBER:		20524359

	MAIL ADDRESS:	
		STREET 1:		C/O ACORDA THERAPEUTICS
		STREET 2:		420 SAW MILL RIVER ROAD
		CITY:			ARDSLEY
		STATE:			NY
		ZIP:			10502

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Pulmatrix, Inc.
		CENTRAL INDEX KEY:			0001574235
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				461821392
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		99 HAYDEN AVENUE
		STREET 2:		SUITE 390
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421
		BUSINESS PHONE:		(781) 357-2333

	MAIL ADDRESS:	
		STREET 1:		99 HAYDEN AVENUE
		STREET 2:		SUITE 390
		CITY:			LEXINGTON
		STATE:			MA
		ZIP:			02421

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Ruthigen, Inc.
		DATE OF NAME CHANGE:	20130411
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0306</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2020-01-09</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001574235</issuerCik>
        <issuerName>Pulmatrix, Inc.</issuerName>
        <issuerTradingSymbol>PULM</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001646596</rptOwnerCik>
            <rptOwnerName>Batycky Richard P.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PULMATRIX, INC.,</rptOwnerStreet1>
            <rptOwnerStreet2>99 HAYDEN AVE, SUITE 390</rptOwnerStreet2>
            <rptOwnerCity>LEXINGTON</rptOwnerCity>
            <rptOwnerState>MA</rptOwnerState>
            <rptOwnerZipCode>02421</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.54</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2020-01-09</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>30000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-01-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>30000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>30000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Twenty-five percent (25%) of this option will vest and become exercisable on November 1, 2020 (the &quot;First Vesting Date&quot;), and the remaining shares underlying the option will vest and become exercisable in thirty-six (36) equal monthly installments on each monthly anniversary of the First Vesting Date thereafter, provided that the reporting person is providing services to the Issuer on the applicable vesting date and subject to the terms and conditions of the Pulmatrix, Inc. Amended and Restated 2013 Employee, Director and Consultant Equity Incentive Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Richard Batycky</signatureName>
        <signatureDate>2020-01-13</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
