<SEC-DOCUMENT>0001209191-23-033981.txt : 20230602
<SEC-HEADER>0001209191-23-033981.hdr.sgml : 20230602
<ACCEPTANCE-DATETIME>20230602182406
ACCESSION NUMBER:		0001209191-23-033981
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230601
FILED AS OF DATE:		20230602
DATE AS OF CHANGE:		20230602

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Mead Dana G Jr.
		CENTRAL INDEX KEY:			0001222358

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39562
		FILM NUMBER:		23990606

	MAIL ADDRESS:	
		STREET 1:		2750 SAND HILL ROAD
		CITY:			MENLO PARK
		STATE:			CA
		ZIP:			94025

	FORMER NAME:	
		FORMER CONFORMED NAME:	MEAD DANA G JR
		DATE OF NAME CHANGE:	20030310

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Pulmonx Corp
		CENTRAL INDEX KEY:			0001127537
		STANDARD INDUSTRIAL CLASSIFICATION:	SURGICAL & MEDICAL INSTRUMENTS & APPARATUS [3841]
		IRS NUMBER:				000000000
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		700 CHESAPEAKE DRIVE
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94063
		BUSINESS PHONE:		650-364-0400

	MAIL ADDRESS:	
		STREET 1:		700 CHESAPEAKE DRIVE
		CITY:			REDWOOD CITY
		STATE:			CA
		ZIP:			94063

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	PULMONX
		DATE OF NAME CHANGE:	20001031
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0407</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2023-06-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001127537</issuerCik>
        <issuerName>Pulmonx Corp</issuerName>
        <issuerTradingSymbol>LUNG</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001222358</rptOwnerCik>
            <rptOwnerName>Mead Dana G Jr.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O PULMONX CORPORATION</rptOwnerStreet1>
            <rptOwnerStreet2>700 CHESAPEAKE DRIVE</rptOwnerStreet2>
            <rptOwnerCity>REDWOOD CITY</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94063</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <transactionDate>
                <value>2023-06-01</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>12620</value>
                    <footnoteId id="F1"/>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>47345</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4076</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>See footnote</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <footnotes>
        <footnote id="F1">Represents grant of Restricted Stock Units (&quot;RSU Grant&quot;) payable solely in common stock of the Issuer that vest on the earlier of (i) the one-year anniversary of the date of grant of June 1, 2023, or if such date is not a business day, then on the next business day, or (ii) the date of the Annual Meeting of the Stockholders for the year subsequent to the date such RSU Grant is made.</footnote>
        <footnote id="F2">The shares were received as a liquidation distribution from KPCB XIII Associates, LLC, the managing member of Kleiner Perkins Caufield &amp; Byers XIII, LLC, the direct holder of the shares as disclosed in prior reports.</footnote>
        <footnote id="F3">The shares are held directly by the Dana G. Mead, Jr. And D'Arcy Gage Mead, or Their Successors, as Trustees of The Mead Family Trust Created Uta Dated August 4, 1998, as Amended.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Lauren Cristina, Attorney-in-Fact for Dana G. Mead Jr.</signatureName>
        <signatureDate>2023-06-02</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
