<SEC-DOCUMENT>0001104659-26-090344.txt : 20260804
<SEC-HEADER>0001104659-26-090344.hdr.sgml : 20260804
<ACCEPTANCE-DATETIME>20260804160136
ACCESSION NUMBER:		0001104659-26-090344
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260731
FILED AS OF DATE:		20260804
DATE AS OF CHANGE:		20260804

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Carr Molly
		CENTRAL INDEX KEY:			0002147544
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35023
		FILM NUMBER:		261238368

	MAIL ADDRESS:	
		STREET 1:		11750 SORRENTO VALLEY ROAD
		STREET 2:		SUITE 200
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92121

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			iBio, Inc.
		CENTRAL INDEX KEY:			0001420720
		STANDARD INDUSTRIAL CLASSIFICATION:	PHARMACEUTICAL PREPARATIONS [2834]
		ORGANIZATION NAME:           	03 Life Sciences
		EIN:				262797813
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0630

	BUSINESS ADDRESS:	
		STREET 1:		600 MADISON AVENUE, SUITE 1601
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022-1737
		BUSINESS PHONE:		302 355-0650

	MAIL ADDRESS:	
		STREET 1:		600 MADISON AVENUE, SUITE 1601
		CITY:			NEW YORK
		STATE:			NY
		ZIP:			10022-1737

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	iBioPharma, Inc.
		DATE OF NAME CHANGE:	20080806

	FORMER COMPANY:	
		FORMER CONFORMED NAME:	InB:Biotechnologies, Inc.
		DATE OF NAME CHANGE:	20071210
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>tm2621854-2_4seq1.xml
<DESCRIPTION>OWNERSHIP DOCUMENT
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0609</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-07-31</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001420720</issuerCik>
        <issuerName>iBio, Inc.</issuerName>
        <issuerTradingSymbol>IBIO</issuerTradingSymbol>
        <issuerForeignTradingSymbol></issuerForeignTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0002147544</rptOwnerCik>
            <rptOwnerName>Carr Molly</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerNonUSAddressFlag>false</rptOwnerNonUSAddressFlag>
            <rptOwnerStreet1>C/O IBIO, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>11750 SORRENTO VALLEY ROAD, SUITE 200</rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92121</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Medical Officer</officerTitle>
            <otherText></otherText>
        </reportingOwnerRelationship>
    </reportingOwner>

    <aff10b5One>0</aff10b5One>

    <derivativeTable>
        <derivativeTransaction>
            <securityTitle>
                <value>Stock Option (right to buy)</value>
                <footnoteId id="F1"/>
            </securityTitle>
            <conversionOrExercisePrice>
                <value>1.40</value>
            </conversionOrExercisePrice>
            <transactionDate>
                <value>2026-07-31</value>
            </transactionDate>
            <deemedExecutionDate></deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>A</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness></transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>430000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <exerciseDate>
                <value>2027-07-31</value>
                <footnoteId id="F2"/>
            </exerciseDate>
            <expirationDate>
                <value>2036-07-30</value>
            </expirationDate>
            <underlyingSecurity>
                <underlyingSecurityTitle>
                    <value>Common Stock</value>
                </underlyingSecurityTitle>
                <underlyingSecurityShares>
                    <value>430000</value>
                </underlyingSecurityShares>
            </underlyingSecurity>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>430000</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </derivativeTransaction>
    </derivativeTable>

    <footnotes>
        <footnote id="F1">Stock option granted as an inducement award to the Reporting Person that was granted outside of the iBio, Inc. 2023 Omnibus Incentive Plan in accordance with Nasdaq Listing Rule 5635(c)(4) on July 31, 2026 (the &quot;Grant Date&quot;).</footnote>
        <footnote id="F2">Vesting 25% on the one-year anniversary of the Grant Date, with an additional 6.25% vesting every three months thereafter, provided the Reporting Person remains employed by iBio, Inc. through each applicable vesting date.</footnote>
    </footnotes>

    <ownerSignature>
        <signatureName>/s/ Marc Banjak, Attorney-in-Fact</signatureName>
        <signatureDate>2026-08-04</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
