<SEC-DOCUMENT>0001209191-23-027199.txt : 20230503
<SEC-HEADER>0001209191-23-027199.hdr.sgml : 20230503
<ACCEPTANCE-DATETIME>20230503205951
ACCESSION NUMBER:		0001209191-23-027199
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230320
FILED AS OF DATE:		20230503
DATE AS OF CHANGE:		20230503

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Geffken Daniel E.
		CENTRAL INDEX KEY:			0001314756

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-39538
		FILM NUMBER:		23886063

	MAIL ADDRESS:	
		STREET 1:		DAMONMILL SQUARE
		STREET 2:		SUITE 6A
		CITY:			CONCORD
		STATE:			MA
		ZIP:			01742

	FORMER NAME:	
		FORMER CONFORMED NAME:	GEFFKEN DANIEL E
		DATE OF NAME CHANGE:	20050119

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			CalciMedica, Inc.
		CENTRAL INDEX KEY:			0001534133
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				452120079
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		505 COAST BOULEVARD SOUTH
		STREET 2:		SUITE 307
		CITY:			LA JOLLA
		STATE:			CA
		ZIP:			92037
		BUSINESS PHONE:		858-952-5500

	MAIL ADDRESS:	
		STREET 1:		505 COAST BOULEVARD SOUTH
		STREET 2:		SUITE 307
		CITY:			LA JOLLA
		STATE:			CA
		ZIP:			92037

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	CalciMedica, Inc. /DE/
		DATE OF NAME CHANGE:	20230322

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GRAYBUG VISION, INC.
		DATE OF NAME CHANGE:	20170717

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	GRAYBUG, Inc.
		DATE OF NAME CHANGE:	20150303
</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>2023-03-20</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001534133</issuerCik>
        <issuerName>CalciMedica, Inc.</issuerName>
        <issuerTradingSymbol>CALC</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001314756</rptOwnerCik>
            <rptOwnerName>Geffken Daniel E.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O CALCIMEDICA, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>505 COAST S. BLVD. #202</rptOwnerStreet2>
            <rptOwnerCity>LA JOLLA</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92037</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Interim CFO</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Warrant</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>6.60</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-03-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>11520</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F2"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-11-09</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>11520</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>11520</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By SG Dan Equity Holdings, LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Warrant</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>10.42</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-03-20</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5760</value>
                </transactionShares>
                <transactionPricePerShare>
                    <footnoteId id="F3"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2030-10-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>5760</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>5760</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>By SG Dan Equity Holdings, LLC</value>
                </natureOfOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Immediately exercisable.</footnote>
        <footnote id="F2">Received in exchange for a warrant to acquire 400,000 shares of common stock of CalciMedica, Inc. (&quot;CalciMedica&quot;) pursuant to an Agreement and Plan of Merger and Reorganization (the &quot;Merger Agreement&quot;) by and among CalciMedica, the Issuer and Camaro Merger Sub, Inc., a wholly-owned subsidiary of the Issuer (&quot;Merger Sub&quot;). Under the terms of the Merger Agreement, on March 20, 2023, Merger Sub merged with and into CalciMedica (the &quot;Merger&quot;), with CalciMedica surviving the Merger as a wholly-owned subsidiary of the Issuer. Upon the closing of the Merger, each outstanding warrant to purchase shares of CalciMedica common stock was assumed by the Issuer and converted into a warrant to purchase the Issuer's common stock. Subsequent to the Merger, the name of the Issuer was changed from Graybug Vision, Inc. to CalciMedica, Inc.</footnote>
        <footnote id="F3">Received in exchange for a warrant to purchase 200,000 shares of common stock of CalciMedica pursuant to the Merger Agreement. Upon the closing of the Merger, each outstanding warrant to purchase shares of CalciMedica common stock was assumed by the Issuer and converted into a warrant to purchase the Issuer's common stock</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>By John Dunn, Attorney-in-Fact</signatureName>
        <signatureDate>2023-05-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
