<SEC-DOCUMENT>0001562463-26-000016.txt : 20260226
<SEC-HEADER>0001562463-26-000016.hdr.sgml : 20260226
<ACCEPTANCE-DATETIME>20260226115408
ACCESSION NUMBER:		0001562463-26-000016
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20260224
FILED AS OF DATE:		20260226
DATE AS OF CHANGE:		20260226

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Fenech Joseph A.
		CENTRAL INDEX KEY:			0001977043
		ORGANIZATION NAME:           	

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	001-35750
		FILM NUMBER:		26683668

	MAIL ADDRESS:	
		STREET 1:		8701 E. 116TH STREET
		CITY:			FISHERS
		STATE:			IN
		ZIP:			46038

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			First Internet Bancorp
		CENTRAL INDEX KEY:			0001562463
		STANDARD INDUSTRIAL CLASSIFICATION:	STATE COMMERCIAL BANKS [6022]
		ORGANIZATION NAME:           	02 Finance
		EIN:				203489991
		STATE OF INCORPORATION:			IN
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		8701 E. 116TH STREET
		CITY:			FISHERS
		STATE:			IN
		ZIP:			46038
		BUSINESS PHONE:		317-532-7900

	MAIL ADDRESS:	
		STREET 1:		8701 E. 116TH STREET
		CITY:			FISHERS
		STATE:			IN
		ZIP:			46038
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>wk-form4_1772124845.xml
<DESCRIPTION>FORM 4
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0508</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2026-02-24</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0001562463</issuerCik>
        <issuerName>First Internet Bancorp</issuerName>
        <issuerTradingSymbol>INBK</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001977043</rptOwnerCik>
            <rptOwnerName>Fenech Joseph A.</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>8701 E. 116TH STREET</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>FISHERS</rptOwnerCity>
            <rptOwnerState>IN</rptOwnerState>
            <rptOwnerZipCode>46038</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>2026-02-24</value>
            </transactionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionAmounts>
                <transactionShares>
                    <value>1000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>19.83</value>
                    <footnoteId id="F1"/>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>10102</value>
                    <footnoteId id="F2"/>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeHolding>
            <securityTitle>
                <value>Common Stock</value>
            </securityTitle>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>4050</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>I</value>
                </directOrIndirectOwnership>
                <natureOfOwnership>
                    <value>Shares owned by GenOpp Financial Fund LP</value>
                    <footnoteId id="F3"/>
                </natureOfOwnership>
            </ownershipNature>
        </nonDerivativeHolding>
    </nonDerivativeTable>

    <derivativeTable></derivativeTable>

    <footnotes>
        <footnote id="F1">Reflects the weighted-average price of shares purchased by the reporting person in multiple transactions at prices ranging from $19.83 to $19.87 per share. The reporting person undertakes to provide to the issuer, a security holder of the issuer or the U.S. Securities and Exchange Commission staff, upon request, full information regarding the number of shares purchased at each separate price.</footnote>
        <footnote id="F2">Includes 51 shares acquired between July 16, 2025 and January 16, 2026 pursuant to the First Internet Bancorp Dividend Reinvestment and Stock Purchase Plan.</footnote>
        <footnote id="F3">All shares are owned by GenOpp Financial Fund LP (the 'Fund'). Mr. Fenech is the indirect owner of the general partner and investment manager, respectively, of the Fund. This filing is not an admission that Mr. Fenech beneficially owns the securities covered by this report.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ Kenneth J. Lovik, Attorney-in-Fact for Joe Fenech (power of attorney previously filed)</signatureName>
        <signatureDate>2026-02-26</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
