<SEC-DOCUMENT>0001209191-23-038443.txt : 20230620
<SEC-HEADER>0001209191-23-038443.hdr.sgml : 20230620
<ACCEPTANCE-DATETIME>20230620164809
ACCESSION NUMBER:		0001209191-23-038443
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20230615
FILED AS OF DATE:		20230620
DATE AS OF CHANGE:		20230620

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Pellizzari Christine A
		CENTRAL INDEX KEY:			0001127430

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35890
		FILM NUMBER:		231025907

	MAIL ADDRESS:	
		STREET 1:		10 FINDERNE AVENUE
		CITY:			BRIDGEWATER
		STATE:			NJ
		ZIP:			08807

	FORMER NAME:	
		FORMER CONFORMED NAME:	PELLIZZARI CHRISTINE A
		DATE OF NAME CHANGE:	20001030

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Tempest Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001544227
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		IRS NUMBER:				451472564
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		2000 SIERRA POINT PARKWAY
		STREET 2:		SUITE 400
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005
		BUSINESS PHONE:		415-798-8589

	MAIL ADDRESS:	
		STREET 1:		2000 SIERRA POINT PARKWAY
		STREET 2:		SUITE 400
		CITY:			BRISBANE
		STATE:			CA
		ZIP:			94005

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Millendo Therapeutics, Inc.
		DATE OF NAME CHANGE:	20181207

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	OvaScience, Inc.
		DATE OF NAME CHANGE:	20120308
</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>2023-06-15</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001544227</issuerCik>
        <issuerName>Tempest Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>TPST</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001127430</rptOwnerCik>
            <rptOwnerName>Pellizzari Christine A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O TEMPEST THEARAPEUTICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>2000 SIERRA POINT PARKWAY, SUITE 400</rptOwnerStreet2>
            <rptOwnerCity>BRISBANE</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>94005</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>0</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.42</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2023-06-15</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>8200</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.00</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2033-06-14</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>8200</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>8200</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">The shares underlying the option will vest in full on the earlier of (i) June 15, 2024, or (ii) the day of the Issuer's 2024 annual stockholder meeting, subject to the Reporting Person's continuous service through such vesting date.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Stephen Brady, Attorney-in-Fact for Christine Pellizzari</signatureName>
        <signatureDate>2023-06-20</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
