<SEC-DOCUMENT>0000899243-15-009534.txt : 20151209
<SEC-HEADER>0000899243-15-009534.hdr.sgml : 20151209
<ACCEPTANCE-DATETIME>20151209143955
ACCESSION NUMBER:		0000899243-15-009534
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20151208
FILED AS OF DATE:		20151209
DATE AS OF CHANGE:		20151209

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

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Graves Kurt
		CENTRAL INDEX KEY:			0001406337

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-36199
		FILM NUMBER:		151278191

	MAIL ADDRESS:	
		STREET 1:		C/O ACHILLION PHARMACEUTICALS INC.
		STREET 2:		300 GEORGE STREET
		CITY:			NEW HAVEN
		STATE:			CT
		ZIP:			06511
</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>2015-12-08</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

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

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001406337</rptOwnerCik>
            <rptOwnerName>Graves Kurt</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PULMATRIX, INC., 990 HAYDEN AVE</rptOwnerStreet1>
            <rptOwnerStreet2></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>4.75</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2015-12-08</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>18818</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2025-12-08</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>18818</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>18818</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">One-fourth (1/4) of the option vests on December 8, 2016 and the remainder vests in thirty-six (36) equal monthly installments with 2.083% vesting on the last day of each of the next thirty-six (36) months that follow December 8, 2016, provided that Mr. Graves is providing services to the Issuer on the applicable vesting date and subject to the terms and conditions of the Pulmatrix, Inc. 2013 Employee, Director and Consultant Equity Incentive Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kurt Graves</signatureName>
        <signatureDate>2015-12-09</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
