<SEC-DOCUMENT>0001649989-25-000009.txt : 20251003
<SEC-HEADER>0001649989-25-000009.hdr.sgml : 20251003
<ACCEPTANCE-DATETIME>20251003201217
ACCESSION NUMBER:		0001649989-25-000009
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20251001
FILED AS OF DATE:		20251003
DATE AS OF CHANGE:		20251003

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Haller Julia A
		CENTRAL INDEX KEY:			0001656082
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-37759
		FILM NUMBER:		251375436

	MAIL ADDRESS:	
		STREET 1:		BRISTOL-MYERS SQUIBB COMPANY
		STREET 2:		ROUTE 206 AND PROVINCE LINE ROAD
		CITY:			PRINCETON
		STATE:			NJ
		ZIP:			08543

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			Outlook Therapeutics, Inc.
		CENTRAL INDEX KEY:			0001649989
		STANDARD INDUSTRIAL CLASSIFICATION:	BIOLOGICAL PRODUCTS (NO DIAGNOSTIC SUBSTANCES) [2836]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				383982704
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		111 S. WOOD AVENUE
		STREET 2:		UNIT #100
		CITY:			ISELIN
		STATE:			NJ
		ZIP:			08830
		BUSINESS PHONE:		6096193990

	MAIL ADDRESS:	
		STREET 1:		111 S. WOOD AVENUE
		STREET 2:		UNIT #100
		CITY:			ISELIN
		STATE:			NJ
		ZIP:			08830

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	Oncobiologics, Inc.
		DATE OF NAME CHANGE:	20150804
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>primary_doc.xml
<DESCRIPTION>PRIMARY DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2025-10-01</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001649989</issuerCik>
        <issuerName>Outlook Therapeutics, Inc.</issuerName>
        <issuerTradingSymbol>OTLK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001656082</rptOwnerCik>
            <rptOwnerName>Haller Julia A</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O OUTLOOK THERAPEUTICS, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>111 S. WOOD AVE, UNIT #100</rptOwnerStreet2>
            <rptOwnerCity>ISELIN</rptOwnerCity>
            <rptOwnerState>NJ</rptOwnerState>
            <rptOwnerZipCode>08830</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>1.04</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-10-01</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>286734</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F1"/>
            </exerciseDate>
            <expirationDate>
                <value>2035-10-01</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>286734</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>286734</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (Right to Buy)</value>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.06</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2025-10-03</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>58648</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <footnoteId id="F2"/>
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            <expirationDate>
                <value>2035-10-03</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
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                <underlyingSecurityShares>
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            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>58648</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">This option grant is an annual stock option grant under the Issuer's Non-Employee Director Compensation Policy and the Issuer's 2024 Equity Incentive Plan (the &quot;2024 Plan&quot;) and shall fully vest on October 1, 2026, subject to the Reporting Person providing continuous service to the Issuer on such date. In addition, the shares underlying the options are subject to acceleration upon a Change in Control as defined in the 2024 Plan, subject to the Reporting Person providing continuous service to the Issuer immediately prior to such Change in Control.</footnote>
        <footnote id="F2">The options were granted under the 2024 Plan in lieu of $55,000 cash fees payable under the Issuer's Non-Employee Director Compensation Policy and vest in four equal quarterly installments on the last day of each fiscal quarter such that they are vested in full on September 30, 2026, subject to the Reporting Person providing continuous service to the Issuer on such date and subject to acceleration upon a Change in Control as defined in the 2024 Plan, subject to the Reporting Person providing continuous service to the Issuer immediately prior to such Change in Control.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/Lawrence A. Kenyon, Attorney-in-Fact</signatureName>
        <signatureDate>2025-10-03</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
